Concrete Openings - Dec 17

DECEMBER 2017

Saw Cutting Mission Specialty Contractor Reinforces Dam for Seismic Events

Wire Sawing Ottawa’s Light Rail System Sloped Auditorium Floor Professionally Honed Century-Old Artifacts Cut from Utah School

2018 Save $70 on Registration Page 37 CSDA 2018 Convention Page 47 W W W. C O N C R E T E O P E N I N G S . C O M

President’s Page

JACK SONDERGARD CSDA President

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eason’s Greetings! It is hard to believe it is the time of the year to say this again. Time sure does fly by quickly. Whether we like it or not, days and weeks go by and, before we know it, another year is coming to an end. Hopefully, winter brings us all an opportunity to slow down a bit, catch up and maybe attend some important industry events.

World of Concrete 2018 (WOC) will be held in Las Vegas January 23-26. This international trade show affords attendees the opportunity to view all the latest tools and equipment in our industry. Acres upon acres of vendors exhibit their wares, sharing the newest technology in all areas of the concrete industry. You can wander through the displays, greet old friends and make new connections. But this is not all that is offered to concrete cutters, polishers and GPR imaging contractors at the Las Vegas Convention Center.

CSDA is an official cosponsor of World of Concrete and we have a booth in the Central Hall (#C4433). If you pay us a visit, a group of friendly member volunteers will be waiting to greet you and explain the many benefits of being part of CSDA. There is a Board meeting scheduled for Wednesday, January 24th and all are welcome to attend.

Also, head to our booth for 10:00 AM that morning and see which contractors win the Concrete Openings Awards for completing complex and challenging jobs this past year. Later that day, at 4:30 PM, our Next Generation Committee has organized a free networking reception. The event is designed for future owners and business leaders to meet and forge new relationships.

If you plan on attending WOC 2018 but have yet to register, CSDA can help you with that! Right now, exhibits-only registration for contractors is $90—online or in person at the show—but we have a code that is good for $20 registration. Enter A26 in the Source Code box as you begin your registration or sign up via csda.org/woc for a

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direct link. Some restrictions apply, but even if you are a non-exhibiting manufacturer, you get a discount.

While checking out new tools and equipment at WOC is useful, the most important assets in our businesses remain our employees.

Properly trained employees work safer and more efficiently, thereby improving our bottom line and essentially recouping the original cost of training over and over again. As a contractor, I believe strongly that my investment in training is money well spent. In our shop, because of CSDA training, we strive to work smarter not harder.

Like previous years, CSDA will provide industry-specific training courses at WOC. Two-day CSDA training courses include Estimating, GPR Certification and Concrete Polishing. In addition, a five-hour ST-115 Certification course is available. CSDA members and non-members are welcome and encouraged to sign up their employees for these valuable courses, which can be done during the WOC attendee registration process. If you need a few pointers on how to find CSDA’s courses in the registration web pages, we have a help sheet to download at the bottom of csda.org/woc.

WOC is a fantastic event, and is closely followed by CSDA’s own annual Convention & Tech Fair, March 6-10 at the Grand Wailea in Maui. This convention destination is always popular and the most well attended. CSDA staff work hard to organize an extraordinary lineup of presenters, panels and workshops, social events, a golf tournament and an exciting choice of optional excursions like whale watching and snorkeling. Industry suppliers present an amazing Tech Fair with the newest equipment. This convention offers a wonderful chance to interact, share wisdom and have fun with others in our industry. And

by March, who isn’t looking forward to some sun and warm ocean breezes? I sure hope to see you all in Las Vegas and Maui. Aloha!

C O N C R ET E O PEN I N G S | 1

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President, Jack Sondergard Central Concrete Cutting, Inc. jacksondergard@sprynet.com Vice President, Matthew Finnigan National Concrete Cutting Inc. matthewf@nationalconcretecuttinginc.com

Saw Cutting Mission

Secretary/Treasurer, Mike Orzechowski DITEQ Corporation mikeo@diteq.com

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Past President, Kevin Baron Western Saw, Inc. kevinb@westernsaw.com Executive Director, Patrick O’Brien Concrete Sawing & Drilling Association pat@csda.org CSDA BOARD OF DIRECTORS (Terms expiring 2018) Peter Bigwood Brokk, Inc. peter@brokkinc.com Scott Brown ICS, Blount Inc. scott.brown@blount.com Matthew Dragon GPRS, Inc. matthew.dragon@gp-radar.com Bennett Jones Advanced Concrete Sawing, Inc. bennett@acsawing.com Kevin Schmitt Husqvarna Construction Products kevin.schmitt@husqvarna.com

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Ottawa’s Largest Wire Saw Job Speeds Underground Rail Expansion

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Kellie Vazquez Holes Incorporated kellie@holesinc.com CSDA BOARD OF DIRECTORS (Terms expiring 2019) Ty Conner Austin Enterprise tconner@austin-enterprise.com Dan Dennison Diamond Tools Technology ddennison@diamondtoolstechnology.com Mark DeSchepper Construction Solutions, LLC mdeschepper@construction-solutions.com

An Uphill Battle

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Jami Harmon GSSI harmonj@geophysical.com Jessica Ledger-Kalen Royale Concrete jlk@royaleconcrete.com Doug Walker Concrete Cutting Consultants, LLC dwalker6550@gmail.com

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Specialty Contractor Reinforces Dam for Seismic Events

Concrete Floor Polishing Specialist Restores School Auditorium

School’s Out!

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Century-Old Features Preserved

by Diamond Cutting

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CONCRETE OPENINGS MAGAZINE Official Magazine of the Concrete Sawing & Drilling Association Volume 26, Number 4 ISSN: 1093-6483 Concrete Openings magazine is published by O’Brien International, Inc., four times each calendar year in March, June, September and December. Editorial contributions are welcomed and advertisements are encouraged. Please contact the Concrete Sawing & Drilling Association 100 2nd Avenue South Suite 402N St. Petersburg, FL 33701 Tel: 727-577-5004 Fax: 727-577-5012

C O N T E N T S 20

Safety Counts

40

Tech Talk Diamond Blades: Softer Doesn’t Always Mean Faster

42

Core Health The Gluten-Free Craze —Facts, Fiction and New Research

WWW.CSDA.ORG Magazines, newspapers and private individuals are welcome to reproduce, in whole or part, articles published herein provided that acknowledgements are made in the following manner: “Reprinted courtesy of the Concrete Sawing & Drilling Association, Concrete Openings magazine, Issue Date.”

No alterations should be made in the text of any article.

Respirators: Five Things to Keep in Mind

44

The Business of Business Changing How We Deal with Change

46

Industry Bits

PUBLISHER Patrick O’Brien ASSOCIATE EDITOR Russell Hitchen CONCRETE CASE CONTRIBUTORS Dario Babic Nicole Lawrence Erin Ledger Spencer Reid David Thompson

56 Certification 58 Membership 60 Calendar 64 Director’s Dialogue

EDITORIAL REVIEW COMMITTEE Skip Aston Rod Newton Pat Stepanski The information and recommendations in this magazine are provided for use by fully qualified, professional personnel.

The Concrete Sawing & Drilling Association and the publisher disclaim any responsibility as to their use by readers and shall not be liable for damages arising out of the use of the foregoing information.

All bylined articles published in this magazine represent solely the individual opinions of the writers and not necessarily those of the Concrete Sawing & Drilling Association.

Cover: Ruskin Dam undergoes upgrade works in Mission, British Columbia, Canada.

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Concrete Cases

SAW CUTTING MISSION Specialty Contractor Reinforces Dam for Seismic Events

Wire sawing techniques were used to cut sections of the dam wall into blocks for removal.

6 | DECEMBER.17

Updates were required at the 110-meter-long (361-foot) and 59-meter-tall (195-foot) Ruskin Dam.

Concrete sawing and drilling work involved the cutting and removal of four existing piers, the bridge deck and sections of the spillway.

This was a concrete sawing and drilling job of seismic proportions—20 million pounds cut and removed above and below water, 5,000 holes cored to depths up to 12 meters (39.4 feet), 697 square meters (approximately 7,500 square feet) of surface scarified— completed in phases over a three-year period.

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n aging dam structure located in Mission, British Columbia, Canada was in need of upgrades and reinforcement to prevent a critical failure in the event of an earthquake. In addition, equipment in the dam’s powerhouse—built in the 1930s— was obsolete and could not provide the required amount of output, so it needed to be replaced.

Ruskin Dam is a 110-meter-long (360.9foot) and 59-meter-tall (193.6-foot) concrete gravity type. The dam creates a reservoir (Hayward Lake) with a 42,000,000 cubic meter (34,050 acre-foot) capacity and its spillway is an ogeetype that consists of seven radial gates. The dam’s powerhouse is immediately adjacent on the river’s eastern bank and contains three 35-megawatt turbine-generators. Access to the powerhouse is via a truss bridge from offices on the west side of the river.

The $800-million CAD ($625-million USD) of upgrades and seismic reinforcement at Ruskin Dam would help it withstand an earthquake, increase its reliability and efficiency, create a two-lane road and pedestrian walkway over it and restore the heritage façade of the powerhouse building. The overall project began in 2012.

The concrete sawing and drilling work involved the cutting and removal of four existing piers, the bridge deck and sections of the spillway. Other tasks included cutting free old generators, intakes, gate slots, draft tubes and creating new steps on the spillway for pier forms. In addition, deep hole drilling was specified for the installation of seismic anchoring and the spillway

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surface required scarifying for reinstatement. Coast Cutting & Coring Ltd., a division of CSDA member Westcoast Cutting & Coring Group Ltd. based in New Westminster, British Columbia, was initially awarded the work at Ruskin Dam in January 2015 and completed its final tasks almost three years later.

There were a number of factors complicating this job, both from an environmental aspect and in terms of specifications.

A large portion of the work was done on the face of the dam spillway, which was on a 60-degree slope with limited access.

In addition, it was specified by Flatiron/Dragados Joint Venture & Voith Hydro, the general contractors for the project, that there be a 1-inch tolerance for the form work. It was also made known to Coast Cutting & Coring Ltd. that the reservoir below the work area contained salmon that were spawning, so protection of this wildlife and water within the reservoir had to be considered when planning the work.

Cutting of the dam structure and powerhouse was done simultaneously, with a total of 30 operators working six days a week in alternating shifts during each phase of the work. Tasks on the dam section started with the slab sawing and removal of the existing concrete bridge deck that was 6 meters (19.7 feet) wide.

Holes were cored through the deck so the steel shafts from the old gates could be cut free, then lengths of concrete railings were braced with knee braces and cut for removal. Deck pieces were slab sawed between the bridge beams with a Husqvarna 4800D, leaving three bridge beams in place. At this point, wire saws were positioned on both sides of the beams to cut them free. The beams were supported then removed one at a time by crane.

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New steps were cut in the 60-degree sloped dam wall for the installation of new steel formwork.

The intakes at Ruskin Dam had slots cut into them on both sides measuring approximately 18 meters (59 feet) tall and 8 meters (26.2 feet) wide for gates to be installed. These gates allowed the flow of the intake water to be stopped for any maintenance needed on the generators. The lintel beam and sill beam were cut and then chipped out to save existing reinforcement for structural tie-ins. Concrete was cut with Husqvarna hi-cycle hand saws, while the chipping was done with a Husqvarna DXR310 demolition robot.

Coast Cutting & Coring then cut four free-standing piers, three of which were 12 meters (39.7 feet) square and 2 meters (6.7 feet) thick, which were divided into 48 pieces each weighing approximately 35,000 pounds. One of the piers was poured against a rock face and was around one-third larger than the others. This pier was cut into 58 pieces. Scaffold and platforms were set up for access to one side of this pier and a narrow hanging platform positioned on opposite side to provide access for slurry containment and wire access. The scaffold was set up in 2.5-meter (8.2-foot) sections as the pieces were cut into roughly 1-meter (3.3-foot) by 2-meter (6.6-foot) sections. This way, two rows of blocks could be lifted prior to removing one section of scaffold.

8 | DECEMBER.17

Operators cored 5-centimeter-diameter (2-inch) holes through the piers for wire access, and the wire was pulled vertically in sizes ranging from 2.5 square meters (27 square feet) to 26 square meters (279.9 square feet). The larger cuts required 46 meters (151 feet) of wire supplied by Cyclone Diamond Products. The contractor employed two Hilti DSW 3018 wire saws and manipulated the wire to perform two cuts at the same time, either horizontally or vertically or opposite directions, to increase productivity and schedule. Cut pieces were lifted out by a 275-ton crane set up on a floating barge nearby. The crane placed the pieces onto an adjacent barge as the work area was too far from shore, and when the barge was full it transported the concrete to shore to be removed from site and recycled. Sections of scaffold were taken down after two rows were completely cut, and this process was repeated seven more times. “We were cutting on multiple piers at the same with an average cutting speed of 3 square meters (32.3 square feet) an hour and each saw cut up to 28 square meters (301.4 square feet) each day,� said Dario Babic, partner for Coast Cutting & Coring Ltd.

The final pier removed was the larger structure that was poured against the rock face. Having no access to the backside of the pier, the contractor made a grid pattern of 12-meter-deep (39.4 foot) intersecting core holes with Weka SR68 drills to allow sections to be cut free with a wire saw. As each cut intersected with another, holes had to be cored from the front face to intersect and the pier was cut into 58 pieces. This was 509 holes with operators coring more than 18 meters (59.1 feet) each per man per shift, totaling 1,551 meters (5,088 feet) of core drilling.

The dam had seven existing gates but the project required this number to be reduced to five, so new steps were cut in the 60-degree sloped dam wall for the installation of new steel formwork. A combination of wall sawing and wire sawing was performed using a Husqvarna WS 482 wall saw, a Pentruder 8-20 wall saw and the company’s Hilti DSW3018 wire saw. Operators started at the top and bottom of the spillway simultaneously because the schedule only allowed 17 days to complete this task. Each step was around 4.5 meters (14.8 feet) wide starting at a 45-centimeter (17.7-inch) height and 60-centimeter (23.6inch) depth step pattern, increasing in size to 127 centimeters (50 inches) high by 90 centimeters (35.4 inches) deep at the bottom.

From the top, the steps were cut vertically down by custom blades from Cyclone Diamond Products and were powered by the Pentruder wall saw. Corners were finished by CW630 chain saws from ICS, but also core drilled vertically and horizontally to create wire access holes to finish the end cuts.

Working from the bottom required a different strategy because of the depth of the steps.

Holes were cored vertically down past the required depth of the step so pulleys could be placed in the 18-centimeter-diameter (7.1inch) holes, allowing operators to push the wire down rather than pulling it. As the work continued, two more crews began working from the top and bottom of the wall, coring pilot holes vertically and horizontally. This was so that a rock drilling contractor could create openings for dowel installations that would anchor the new piers to the bedrock.

Also during the project, Coast Cutting & Coring was asked to remove 15 centimeters (6 inches) off the surface of the spillway and create a rough surface. Water blasting was used for a portion of this task but was time consuming, so the contractor again used its diamond cutting tools. The area was a 12-meter (39.4-foot) square that was cut into 16 smaller square panels measuring 3 meters (9.8 feet). As wall sawing of the panels progressed, a wire saw crew placed diamond wire into the cuts and performed pull cuts to achieve the new surface profile. Each piece took about two to three hours to complete.

After each row of four pieces were lifted out, a Husqvarna DXR310 demolition robot fitted with a milling head scarified the surface so that new concrete could be poured onto it.

This task was particularly successful and the contractor finished a full three weeks ahead of schedule.

This was a huge job for Coast Cutting & Coring, or any contractor for that matter. To keep up with some additional tasks added to the project, the contractor invited fellow CSDA member Di-Tech International of Winnipeg, Manitoba to assist and partner on the spillway demolition work. “Di-Tech International assisted us with tooling, crew members and general guidance from the owners. Working with Steve Johnston and Luke Dufalt ensured the job was a great success and created a bond between our two companies,� explained Babic.

In addition to the large amount of work completed on the dam spillway, the cutting contractor also had several tasks to complete at the nearby powerhouse. These tasks included the cutting of a 9-meterdiameter (29.5-foot) steel pipe, the dissection of a stator into six pieces, the removal of numerous concrete bases and the creation of 1.5-meter (5-foot) by 7.5-meter (24.6-foot) openings between the three levels of the powerhouse to aid in the cooling of the new dam generators.

On the reservoir side of the dam, underwater wall sawing techniques were employed to cut slots for the coffer dam. A Husqvarna WS 360 hydraulic wall saw fitted with a 61-centimeter-diameter (24-inch) blade made the required cuts. Each slot took seven days to complete with a crew working 12-hour shifts.

Operators started at the top and bottom of the spillway simultaneously to complete the task on schedule.

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The contractor scarified 697 square meters (approximately 7,500 square feet) of concrete surface.

contract,” continued Babic. “Most importantly, we left the jobsite with zero lost time incidents. This was possibly the most satisfying part about the whole job and our superintendent Ken Thornton, deserves a mention. His motivation and expertise were a driving factor behind this outcome.”

The upgrade and reinforcement work at Ruskin Dam was completed September 2017.

REVIEW AND COMMENT ON THIS ARTICLE AT: WWW.CONCRETEOPENINGS.COM

COMPANY PROFILE Cut sections were removed by crane and placed on a nearby floating barge.

Over the three-year period of the Ruskin Dam spillway and powerhouse job, Coast Cutting & Coring Ltd. helped the general contractor remove 20 million pounds of concrete. To complete the sawing and core drilling tasks safely on the 60-degree slope of the dam wall, specialized work platforms were erected and all workers were fitted with harnesses and fall arrest equipment.

To make sure the salmon living in the dam reservoir remained healthy and unharmed during the work, a three-tier slurry containment system was employed. On every scaffold platform a rubber membrane was installed and slurry was pumped into totes. From the totes, the slurry was pumped across to the other side of the dam where it was processed. Shrink wrap was used around the scaffold decks to prevent any overspray and two gutter systems were installed to capture any slurry that escaped.

“Our work at Ruskin Dam was arguably the most challenging project we have ever done—it certainly had the most demanding schedule,” said Babic. “We believe this was the largest concrete sawing and core drilling project in Canada in terms of volume. We worked six days a week with alternating shifts on an open platform, sometimes in snow and icy conditions, and had to be extremely careful when it came to the control and containment of slurry.”

“The work was completed ahead of schedule and within budget, and additional phases were awarded based on the success of original

10 | DECEMBER.17

Established in 1976, Coast Cutting & Coring Ltd., a division of Westcoast Cutting & Coring Group Ltd., is based in New Westminster, British Columbia, Canada and has been a CSDA member for 16 years. The company has support locations in Vancouver Island and Prince George, has 60 employees, 50 trucks and offers the services of slab sawing, core drilling, wall sawing, wire sawing and selective demolition.

RESOURCES General Contractor: Flatiron/Dragados Joint Venture, Voith Hydro Sawing and Drilling Contractor: Coast Cutting & Coring Ltd. Vancouver, British Columbia, Canada Phone: 604-291-1448 Email: dariob@coastcutting.ca Website: www.coastcutting.ca

METHODS USED: Slab Sawing, Core Drilling, Wall Sawing, Wire Sawing, Selective Demolition

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12 | DECEMBER.17

T

he construction of Ottawa’s state-of-the-art light rail transit system (OLRT), named the Confederation Line, is the Canadian city’s largest transportation infrastructure project in history, with a price tag of $2.1 billion CAD ($1.6 billion USD).

This past summer, as the project reached the development of a 2.5-kilometer (1.6mile) stretch of underground rail line under downtown Ottawa, a professional concrete sawing and drilling contractor was needed to create a large opening at one of three newly-constructed underground stations.

Building a traffic-separated downtown tunnel was the largest single undertaking of the Confederation Line and the key to solving the transit bottleneck in downtown Ottawa. The downtown tunnel has three stations— Lyon, Parliament and Rideau. Advanced mining techniques were used during construction of the tunnel to minimize noise and vibration for residents and businesses, so general contractors Rideau Transit Group (RTG) and Ottawa Light Rail Transit Constructors (OLRT-c)—both consortiums of Canadian and international companies—wanted to continue to adopt this policy when roof openings were required in the recentlypoured station tunnel walls.

CSDA member Capital Cutting & Coring Ltd. of Ottawa was selected to make a roof opening approximately 44 by 8 meters (144 by 26 feet) at the new Parliament OLRT underground station using concrete wire sawing techniques with diamond tools. The opening would be used for various shafts and access points to connect the station with street level, and would be made by creating 26 cut concrete pieces each weighing between 25 and 30 tons (50,000 and 60,000 pounds).

The contractor made a roof opening approximately 44 by 8 meters (144 by 26 feet).

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With all access holes completed, a length of diamond wire approximately 36 meters (118.1 feet) was threaded through two of them—spaced 6 meters (19.7 feet) apart across the width of the roof area—to set up the first loop for a pull cut. The cutting contractor essentially split the tunnel roof into 26 sliced sections.

With the wire saw and operator positioned at one side of the cut area and the wire looped through the opposite side, sawing began.

The operator made regular adjustments to the speed, tension and water supply as the wire made the 6-meter (19.7-foot) cut across the width of the tunnel to the core hole on the other side.

Cutting thickness began at 3 meters (9.8 feet), decreased to 2 meters (6.6 feet) and back again The underground rail station is one of three being constructed under downtown Ottawa. as the wire moved across the tunnel roof from one side to the other. Each cut took around six Dave Thompson, vice-president of Capital Cutting & Coring Ltd., hours to complete. Capital Cutting & Coring operators made 14 explained, “This was our biggest wire sawing job ever and the largest cuts like this, then an additional three cuts measuring 5 meters one of its kind in Ottawa that I know of. The construction of the (16.4 feet) long where the cutting area narrowed.

Confederation Line had already been underway for four years before With all these cuts complete, the wire saws were set up to make we arrived on the jobsite. The wire saw was chosen for its ability to a series of cuts to free the 26 sliced sections. In total, 29 pull cuts cut manageable sections from huge concrete structures with speed, were made in widths from 1 to 3 meters (3.3 to 9.8 feet) and each efficiency and low noise and vibration.” section was rigged and secured by crane. Wire sawing would stop To keep the overall project on schedule, the cutting contractor once the section was completely free from the tunnel wall and the was given just three weeks to complete all wire sawing tasks at the crane could lift it out to street level.

Parliament Station West Entrance and remove the cut sections from the jobsite. This was one of five cutting locations required overall. Capital Cutting & Coring calculated that the company would need to run three of its Hydrostress SB wire saws continuously in order to meet the time frame set by the general contractor.

The work began with operators core drilling 57 holes measuring 8 centimeters (3.1 inches) in diameter and 55 holes 12 centimeters (4.7 inches) in diameter to an average depth of 2 meters (6.6 feet) through the concrete tunnel wall.

Core drill rigs supplied by Diamond Products were used to make the holes, with the 8-centimeter (3.1-inch) and 12-centimeter (4.7-inch) diameter holes taking an average of three and four hours respectively using bits and tube extensions supplied by Husqvarna and DTT Canada. These holes were used for diamond wire runs and for attaching rigging and lifting equipment once the cut sections were ready for removal.

Each cut section weighed between 25 and 30 tons (65,000 pounds).

14 | DECEMBER.17

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Concrete Cases

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Over 700 tons of concrete was removed from the Parliament Station site.

Wire saw operators performed 144 linear meters (472.4 feet) of cutting.

Cut sections were lifted out by crane before being removed from the jobsite and crushed at a local quarry.

The wire sawing work done by Capital Cutting & Coring produced 26 pieces each weighing between 25 and 30 tons. Each one was lifted out by crane before being removed from the jobsite and crushed at a local quarry. In total, the contractor performed 144 linear meters (472.4 feet) of cutting that led to over 700 tons (1,400,000 pounds) of concrete being removed from the Parliament Station site.

“Our biggest challenge was keeping all three wire saws running

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24/7 until completion of the work,” said Thompson. “We arranged to have a suitable supply of backup equipment and spare tooling to minimize lost time in the event of any malfunctions or breakages.

I’d also like to thank everyone from Canadian Cutting and Coring in Mississauga who assisted us with this job.”

However, before any wire sawing work was done engineers were brought to the jobsite to consult and assess the contractor’s plan. In

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particular, the engineers had to be sure that the weight of the cut pieces would be within the crane’s load capacity and that the street above the station could handle the weight of the crane while lifting the loads.

Once the engineers were satisfied that the job was feasible and safe, the contractor moved forward.

While working around the tunnel roof opening, wire saw operators and other workers were tied off to avoid falls and the general contractor made sure pedestrians and street traffic did not encroach within the work area.

All wire sawing tasks at the OLRT Parliament underground station were completed on time and within budget. As a result of the cutting contractor’s success on this job, additional work has been awarded on the Confederation Line project.

“Capital Cutting & Coring has been an asset to our construction teams. Working within the busy capital of Canada and meeting very sensitive deadlines has its stresses, but the cutting contractor helped relieve some of this stress. The complexity of constructing an underground rail system has had many challenges, so working with professionals was the only way to insure a positive result,” explained William Coleman C.E.T. GSC, an OLRT-c/RTG Construction Manager.

Completion of the 2.5-kilometer (1.6-mile) downtown tunnel has now been achieved and, after an extended period of testing, Phase 1 of Ottawa’s light rail transit system, the Confederation Line, will begin full revenue service in 2018.

COMPANY PROFILE Capital Cutting & Coring Ltd. has been a CSDA member since 1989 and is based in Ottawa, Ontario, Canada. The company has been in business for over 30 years, has 50 employees, 16 trucks and offers the services of core drilling, wall sawing, wire sawing, flat sawing, selective demolition and ground penetrating radar imaging.

RESOURCES General Contractor: Rideau Transit Group, Ottawa Light Rail Transit Constructors Sawing and Drilling Contractor: Capital Cutting & Coring Ltd. Ottawa, Ontario, Canada Phone: 613-737-5227 Email: dave@capcut.com Website: www.capcut.com

METHODS USED: Wire Sawing, Core Drilling

REVIEW AND COMMENT ON THIS ARTICLE AT: WWW.CONCRETEOPENINGS.COM

The Confederation Line Ottawa’s population is projected to grow 30 percent by 2031 and the city’s public transportation is already near or at capacity in the downtown core. Therefore, in November 2008, Ottawa City Council approved a Transportation Master Plan laying the foundation for Ottawa’s light rail transit (LRT) project and the contract for the Confederation Line was awarded in February 2013.

The line runs 12.5 kilometers (7.8 miles) from Tunney’s Pasture Station in the west to Blair Road in the east and includes 13 stations. Much of the route runs within the city’s existing Transitway, with the terminus stations integrating into the Bus Rapid Transit system at Blair Station, Hurdman Station and Tunney’s Pasture Station. At Bayview Station, the Confederation Line links up with the north-south running O-Train.

18 | DECEMBER.17

However, the $2.1-billion CAD ($1.6-billion USD) Confederation Line is designed to be more than a solution to Ottawa’s longterm transit needs—it will also generate significant economic, environmental, cultural and social benefits for the city and its residents. It will launch with a planned peak capacity of 10,700 passengers per hour in each direction, with potential to grow to over 18,000 passengers per hour in each direction by 2031. With a tunnel through the downtown core, travel time from one end to the other will be less than 24 minutes—any time of day. By using zero-emission electric trains and encouraging commuters to leave their cars at home, it is hoped that the line will provide a reduction in both air and noise pollution. The investment in this new system has generated thousands of direct and indirect jobs, and will provide a total economic output of approximately $3.2 billion CAD ($2.5 billion USD).

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Safety Counts

Respirators: Five Things to Keep in Mind

By Don Garvey

O

SHA has issued a final rule to limit workers’ exposure to respirable crystalline silica (March 2016, OSHA Respirable Crystalline Silica in Construction Regulation – 29 CFR 1926.1153), a common construction material (e.g. concrete, brick, mortar, granite and sand).

Scientists have long known that prolonged, excessive exposure to respirablesize particles of crystalline silica when workers chip, cut, drill or grind objects containing it can increase health risks, such as the risk of developing silicosis or other ailments. The effects of crystalline exposure are typically long-term.

Safety managers need to take steps to protect their workers and comply with the new OSHA rule. The use of engineering controls such as water sprays or local exhaust ventilation are the preferred methods of controlling silica dust (and required by OSHA to the maximum extent feasible).

20 | DECEMBER.17

However, personal protective equipment (PPE), particularly respirators, may still be a critical factor in helping to ensure worker safety and compliance.

Respiratory protection for silica involves more than just handing out respirators to workers. If respiratory protection is needed, a full respirator program per OSHA regulation 29 CFR 1910.134 is necessary to ensure proper worker protection and mitigate those hazards.

Here are a few points to keep in mind: DESIGNATE A RESPIRATORY PROGRAM ADMINISTRATOR The respirator program discussed below must be overseen by a respirator program administrator. The administrator must evaluate every element of the respiratory protection program on a regular basis to ensure all elements are being properly implemented. Records, tests and inspection reports need to stay up-to-date and respirators in use are still proper for the

conditions on the jobsite. It is important to document all evaluations and findings as well as any corrective measures taken.

The program administrator should also observe and speak with the respirator users to ensure they are using it correctly, that they understand how to use and maintain it properly, and that the respirators are ultimately meeting their needs. In jobsites where silica dust cannot be controlled with water, the program administrator may also be the silica competent person required by the silica regulations. While not required to be the same person, it may make administration and oversite of the program easier.

CREATE A WRITTEN RESPIRATOR PROGRAM A written program is required by OSHA and is a core component to an effective and complete respiratory protection program for silica. Per 29 CFR 1910.134,

every respiratory protection program requires written worksite-specific procedures for various issues, such as: • Exposure assessment to determine the airborne hazards present • Respirator selection based on the identified hazards • Medical evaluations to help ensure workers can safely wear the respirator selected • Use of respirators • Maintenance, cleaning and storage of respirators • Assuring adequate air quality if air supplied respirators are used • Training and fit testing of workers • Program evaluation MEDICAL EVALUATION OSHA requires employers provide a respirator medical evaluation to the worker before they can wear a respirator. This typically consists of a questionnaire that considers medical conditions, workplace conditions and hazards that could affect the worker’s ability to safely wear a respirator. A licensed healthcare professional evaluates the employee’s responses and advises whether the worker appears to be medically able to wear the class of respirator being considered.

The employer must reevaluate the worker’s ability to safely wear a respirator when: • Signs or symptoms are reported that may affect a worker’s ability to safely use a respirator • A physician, supervisor or respiratory program administrator requests an evaluation • Information during fit testing or program evaluation indicate a need for re-evaluation • Changes in workplace conditions increase the burden on the worker, such as temperatures, level of exertion or equipment needs OSHA has not established a time frame for when to repeat the medical evaluation.

However, all workers using respirators must be reevaluated when: • A worker reports signs or symptoms that may affect his or her ability to safely use a respirator • A physician, supervisor or respiratory program administrator requests an evaluation • Information during fit testing or program evaluation indicate a need for re-evaluation • Changes in workplace conditions increase the burden on the worker, such as temperatures, level of exertion or equipment needs

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RESPIRATOR FIT TESTING All tight-fitting face piece respirators— both negative pressure (elastomeric and disposable) and positive pressure (powered air and supplied air)—must be fit tested to ensure a good seal between the user’s face and the respirator. OSHA currently allows two basic types of fit testing: • •

Qualitative (e.g. Bitrex®, saccharin), which gives a pass/fail result Quantitative, which gives a numerical result

Either method can be used for all respirators except full-face negative pressure respirators. To qualify for the OSHA assigned protection factor (APF) of 50, a full-face respirator must be fit tested using the quantitative fit test method. If a qualitative method is used, the full-face respirator will only be given an APF of 10.

Respirator fit testing must be repeated at least annually, or if the user changes to a different make or model of respirator or experiences any physical changes (e.g., significant weight changes, dental work, etc.) that could affect fit.

C O N C RET E O P EN I N G S | 2 1

Safety Counts

continued

RESPIRATORY TRAINING AND MAINTENANCE OSHA mandates that employers ensure that workers are trained annually. This provides a forum for users to become reacquainted with the importance of respiratory protection and to give everyone a refresher course in properly using and caring for their equipment. At a minimum, training should cover: • Why respirators are needed • What protection a respirator can or cannot offer • How to properly inspect, put on, take off and use a respirator • How to perform a “user seal check” • What to do in emergency situations, including what to do if the respirator does not work properly • How to recognize medical signs and symptoms that may limit or prevent workers from using a respirator • How improper fit, use or maintenance can reduce effectiveness • Maintenance and storage procedures • The requirements for federal/state OSHA respiratory protection standards Respirators should be inspected before each use and during cleaning, and users must

22 | DECEMBER.17

This article is only a brief overview of respirator use. Employers should read and understand the U.S. OSHA respirator regulation (29 CFR 1910.134) in its entirety prior to using respirators. To learn more about the silica regulation, or about overall best practices for respiratory protection, there are many valuable, dependable resources available. CSDA has a copy of the rule and other resources at csda.org/ silica or read the Administration’s official information at osha.gov/silica.

Don Garvey, CIH, CSP is the construction industrial hygienist with 3M’s Personal

follow the manufacturer’s user instructions for specific inspection and maintenance procedures. Emergency respirators should be inspected at least monthly and before and after every use. Consider issues like: • Respiratory function • Tightness and connection • Pliability of elastomeric parts • The condition of various parts including the facepiece, head straps, valves, connecting tube, cartridges, canisters or filters

Safety Division based in St. Paul, Minnesota. Garvey has a Master’s Degree in Environmental Health from the University of Washington in Seattle, WA. He is a founding member and past chair of the American Industrial Hygiene Association Construction Committee and is a Fellow of the Association. Garvey has published several articles on construction safety and health issues and can be reached at 888-364-3577 or dgarvey@mmm.com.

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Concrete Cases

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Roosevelt High School, Des Moines, Iowa

A 6,600-square-foot auditorium floor was restored to a honed finish.

24 | DECEMBER.17

When faced with a 6,600-square-foot sloped floor that contained hundreds of damaged vents, a team of craftsmen from a concrete polishing contractor used brains and brawn to restore the floor of a 92-year-old school auditorium in Des Moines, Iowa.

Royale Concrete, a CSDA member from Fairfield, Iowa, had a literal uphill battle on its hands when the company accepted the job to revitalize the floor of the 2,036-seat auditorium, originally built in 1925, at Roosevelt High School. Honing the floor using surface preparation and polishing techniques was the school’s preference, but this was going to be a challenge for the contractor.

The pitch of the floor, around 2 inches over 1 foot in some areas, meant that Royale’s grinders, which each weighed in excess of 900 pounds, struggled to keep course with the slope. Even the selfpropelled remote control grinders were no match for the forces of gravity dragging them downward, so polishing machine operators had to use additional force to manually maneuver the grinders and keep them on course.

Adding to the challenge were over 300 closely-spaced degraded vent holes in the auditorium floor measuring 12 inches by 6 inches. It was difficult for the grinder operators to navigate around these openings without damaging the 32-inch-wide grinding heads and without falling into the holes. All this, plus a tight schedule of 10 days, meant that the operators from Royale Concrete had their work cut out for them. However, the polishing contractor’s team, lead by certified craftsman Justin Toben, decided to meet this challenge head on.

The 90-year-old floor surface was worn and damaged.

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continued

Concrete grinders were used to remove approximately 0.25 inch from the surface to reveal the aggregate below.

“We were incredibly proud of our craftsmen for tackling this challenging project,” commented Erin Ledger, Project and Operations Manager for Royale Concrete. “The client was thrilled with the results.”

To restore the Roosevelt High School Auditorium to its former glory, the client and contractor agreed on a honed concrete specification that utilized Husqvarna’s HiPERFLOOR® surface polishing system, dry grinding techniques, CTS’s Rapidset TruPC for cementitious repair and the Versaflex Quickmender system for patching. The system mechanically refined the already hard concrete surface through a process of grinding, honing and chemical treatments.

Toben and his team pushed two Husqvarna PG820 grinders around the incline to remove the worn surface and reveal the aggregate beneath approximately 0.25 inch of concrete. Both machines were attached to DC 5500 vacuum systems, also from Husqvarna, to control and collect dust and debris created during

26 | DECEMBER.17

the grinding process. Gravity, of course, constantly pulled the machines down the slope of the floor, so the operators had to use their bodies to steer the machine in a straight path. During the grinding work, operators encountered lead imbedded in the floor and reinforcing steel buried 0.5 inch from the floor surface. It was very taxing physically to try to keep the grinders from veering in a downward motion, but the surface removal process for the entire floor was completed in 400 man hours.

The historic auditorium had hosted concerts, plays and student assemblies for over 90 years. As a result, its floor had experienced a lot of shuffling feet that created a well-worn surface and damage to items built into it. Over 300 degraded vent holes in the auditorium floor— functioning air conditioning vents that the school wanted to maintain for continuing use—needed a great deal of repair before being honed and finished with the rest of the floor.

Royale Concrete came up with a solution to repair the vent holes that was both effective and efficient. After the degradation around the vent holes had been prepped and cleaned, the team was ready to fill these

Degraded floor vents had to be repaired before the floor could be honed.

areas with cementitious repair material. However, they still had to figure out a solution to repair the vent holes while retaining their function.

Toben pulled from his past experience with forming concrete countertops, and thought to use common foam insulation board as a form material for the vent holes. Using this easy-to-handle material allowed the team to quickly and easily customize the forms for each vent while also retaining the original rectangular shape and function of each vent. The grinders again had to be painstakingly maneuvered around the vent holes during the finishing process, but the use of the foam insulation material made for a swifter repair process. There was also a great deal of hand grinding and honing work required on the job too. The auditorium had an under-stage overhang where large grinders could not fit.

Once all the crack filling and vent repair work was completed, it was time to begin honing and refining the floor.

For this part of the process, a series of metal resin diamond polishing pads and tooling was transitioned out to bring the floor to a 200-grit transition. At this stage, a Hyperhard densifier from Husqvarna was added before further tooling was applied to hone the floor to a 400-grit finish.

A series of metal resin diamond polishing pads and tooling was used to transition the floor to the specified 400-grit finish.

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C O N C RET E O P EN I N G S | 2 7

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It was discovered on commencement of the work that a different type of aggregate had been used on the floor area in front of the auditorium stage. This meant that the contractor’s equipment would not produce the exact same finish in this area as the rest of the floor once honed.

Therefore, the contractor employed a custom color-matching dye to bring the tone of this 575-square-foot area in line with the rest of the auditorium floor surface.

“Being solutions-oriented is one of our company’s core values,” commented Toben. “Where others may hesitate about certain projects, we move forward determined to use each challenge as an opportunity to hone our craft and either learn or develop new ways of overcoming obstacles.”

Despite all the challenges that the project presented, the end result was a 6,600-square-foot floor that was both functional and aesthetically pleasing. The life cycle cost of this flooring option will be especially beneficial for the customer in terms of maintenance and lasting results.

Concrete floors polished or honed can outlast other materials like carpet, wood, laminate and vinyl. The school was pleased with the finish and that the work was completed on time and within budget.

Discussions have already taken place with the contractor regarding possible jobs in the future.

“Royale Concrete was honored to have been trusted by the Des Moines school district to complete such a challenging project. The company and its craftsmen look forward to the opportunity to serve the school system for many years to come,” says company owner Jessica Ledger-Kalen.

The contractor employed a custom color-matching dye to bring the 575-square-foot area in front of the auditorium stage in line with the rest of the surface.

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COMPANY PROFILE Royale Concrete has been a CSDA member for two years and is based in Fairfield, Iowa. The company has been in business for 11 years. It has 10 employees and offers the services of surface preparation, polishing, coatings, urethane concrete and floor repair. Royale Concrete employs operators that are CSDA-ST-115 Certified and the company owner, Jessica Ledger-Kalen, is a CSDA Board member and chairperson of the association’s Polishing Committee.

RESOURCES General Contractor: Des Moines Public School District Polishing Contractor: Royale Concrete Fairfield, Iowa Phone: 888-568-6001 Email: jlk@droyaleconcrete.com Website: www.royaleconcrete.com

METHODS USED: Concrete Polishing

REGISTER TODAY!

csda.org/convention | 727-577-5004 28 | DECEMBER.17

CSDA 2018 CONVENTION March 6–10, Maui, Hawaii Grand Wailea—a Waldorf Astoria Resort Keynote Speaker—Paul de Gelder

IMPROVISE...

ADAPT… OVERCOME CSDA is thrilled to announce that Paul de Gelder, a shark attack survivorturned marine life conservationist who features in Discovery Channel’s Shark Week, will be the association’s convention keynote speaker in Maui.

Improvise. Adapt.

Overcome. These three words—a Paul de Gelder mantra de Gelder learned as a young paratrooper in the Australian Army—resonated with him the first time he heard them and helped him through his dramatic, life-changing experience. During an Australian Navy diving exercise in February 2009, Paul lost two limbs after being attacked by a bull shark. He fought through excruciating pain, overcame challenge after challenge and amazed medical staff with his will to succeed. In the seven years since the attack, Paul’s life has changed in every aspect. He has become a fierce advocate for sharks and travels the world as a motivational speaker, passionate environmentalist and mentor to school kids. Paul has spoken at venues all around the world in front of thousands, from the United Nations in New York and the U.S. Navy in San Diego to keynotes for multimillion dollar corporations.

He has also been a guest on several U.S. talk shows and has co-hosted six documentaries for Discovery Channel’s Shark Week including swimming with bull sharks—the species that attacked him.

Learn all about de Gelder’s extraordinary life during what will be a breathtaking convention keynote in Maui. His inspiring story takes the saying “never say die” to a whole new level and is sure to have you on the edge of your seat.

For more information about the CSDA 2018 Convention, or to register, visit csda.org/convention or call 727-577-5004.

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C O N C RET E O P EN I N G S | 2 9

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IACDS President’s Insight

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henever I am asked to talk about growing a business, the overriding message in everything I discuss is that you should enjoy what you do and build trust wherever possible. Life is what you make it, whether you are in business or not. If you are not having fun, then find something else to do.

There’s not a one-size-fits-all method to growing a business, but in this era of social media and digital communication, I think it’s crucial to remember that people still buy from people and that relationships matter—maybe now, more than ever. It is important to create trust from the outset. This can apply to every business sector, but I believe it is absolutely vital in our industry. So, when I receive a call or email from a new client to tell me how well our team did on a job, it gives me a great deal of satisfaction. Even if the new client was recommended by an existing customer, this does not guarantee their trust. It simply gets your “foot in the door” and gives you an opportunity to impress.

The way a team operates, communicates and their ability to complete a job on time and within budget creates and builds trust. It sounds simple, but how many companies do you know of that spend fortunes on consultants, strategists and systems in a bid to grow the business but actually don’t get the basics right? As trust builds with a new client, you become increasingly important to them to the point where they feel they cannot do their job without you. Suddenly, they are recommending you to others and the process begins again. This

JULIE WHITE IACDS President

may take a year, two years, ten years or more, but as long as the client remembers you did a great job then the likelihood is that you will be contacted again.

In this day and age, everything feels so instant and throwaway but relationships are more important than they have ever been. This is why, regardless of the type of interaction, I combine my professionalism with a drop of fun and enthusiasm to develop relationships and build trust. I wouldn’t do it if I didn’t love it!

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C O N C RET E O P EN I N G S | 3 1

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Concrete Cases

A series of 15 historic features were to be saved before the former high school building was demolished.

SCHOOL’S OUT! Century-Old Features Preserved by Diamond Cutting

D

emolition of a former high school campus in Salt Lake City, Utah was completed this past summer as part of a $2.5-million contract. The school district and general contractor worked with a well-studied concrete sawing and drilling contractor to preserve memorabilia from the 110-year-old building, including unique plaques, exterior features and signage, so that it could be made available to former alumni, collectors and the public.

Closed in 2009, Granite High School had remained empty for several years until, in 2016, a property developer purchased 16 acres of the 27-acre site for $11.6 million for the construction of 76 single-family homes. Plans were made to raze the former school building in readiness for the new homes, but it was agreed that a series of 15 ornate features

34 | DECEMBER.17

around the building—some as large as 11 feet wide and 6 feet tall— would be carefully removed and kept intact.

Traditional demolition methods with jackhammers and wrecking balls were used to bring down the century-old high school building, but these tools were unsuitable for the removal of what were old and fragile pieces of history. Instead, the general contractor for the demolition work, Reynolds Brothers Excavating of Draper, Utah, turned to CSDA member Greene’s, Inc. of Woods Cross to safely cut and remove these pieces using diamond tools.

“We were contacted by Reynolds Brothers and asked to come up with a way of removing a set of historical concrete plaques and medallions at various locations in the building,” explained Jimmy

The specialty contractor cut and removed two 11-foot-wide, 6-foot-tall concrete plaques.

Greene, Sales Manager for Greene’s, Inc. “The importance of maintaining the structural integrity of these items was stressed to us, so we knew that this job would require strict attention to detail from our experienced operators to make certain nothing was damaged while being cut, removed and transported.”

The use of air hammers had been considered to remove the items, but due to the age and fragility of the material this application would not have provided the necessary low level of vibration required to keep things in one piece. Hammering could have caused cracks or damaged pieces as they were being removed.

“Once we arrived at the jobsite, we walked the perimeter of the building and explained to our operators exactly what was required. It was made very clear that the items could not be replaced,” said Greene.

“Communication was key, as was teamwork. We started with one of the smaller pieces first and dedicated a good amount of time to making sure the work was done well. This was a job where every guy on site needed years of experience of precision sawing or forklift techniques.”

Work at Granite High School began early in the summer as temperatures were reaching 90 to 100 degrees. Many of the plaques and other items marked for removal were positioned between 30 and 60 feet up on the walls of the school building, so operators worked from a man bucket to set up and run the equipment. As the work was being performed from an elevated position, the cutting contractor needed lightweight equipment and so used high-frequency,

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Cut sections were secured and lowered to the floor by forklift.

C O N C RET E O P EN I N G S | 3 5

Concrete Cases

continued

A set of 12 marble blocks measuring 4 inches thick was cut free using diamond tools.

electric-powered tools. Equipped with the necessary PPE, including harnesses and lanyards for working from a lift, Greene’s, Inc. operators set up at the first cutting location.

The largest pieces of memorabilia cut and removed from the building were two 11-foot-wide, 6-foot-tall concrete sections that had images depicting the school’s athletic prowess on the track and on the football field etched into them. These pieces consisted of three separate 6-foot-tall slabs placed together that were 3 inches thick and embedded in the brick work, so that they were flush with the surface of the wall. An operator from Greene’s used a K6500 concrete power cutter from CSDA manufacturer member Husqvarna Construction Products to cut around the concrete pieces for safe removal. These 11-foot-wide pieces were each cut and removed in 30 hours.

Similar techniques were used to remove two more plaques, which were 6 feet wide and 4 feet tall. For these pieces, and the larger 11-foot-wide plaques, the contractor used a Bosch 11311EVS demolition hammer to chip slots below the cut sections. These slots were used to hold and lower the panels securely using a forklift.

Other items cut and removed included two round concrete medallions that were 2 feet in diameter and 3 inches thick. These pieces were positioned on the walls approximately 20 feet from the ground, and each one took around 30 minutes to cut and remove with the power cutter.

Finally, the team from Greene’s, Inc. was tasked with cutting and removing items above the building’s two main entranceways that identified the school. At one location, 12 marble blocks had the

36 | DECEMBER.17

All items of memorabilia were to be preserved by the local school district and sold to former pupils or collectors.

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Concrete Cases

continued

A 24-foot-long concrete sign above the school’s front entrance was one of the final pieces removed before the building was brought down.

name of the school etched across them. Each block was around 2 feet wide, 1.5 feet tall and 4 inches thick, and contained between two and four letters measuring 1.5 feet in height. These blocks were attached by cement to the masonry behind, and had to be carefully cut and removed one by one. The entire 12 pieces were removed by the cutting contractor in five hours. Another name plaque, a 20-foot-long, 2-foottall concrete piece placed during the school’s opening in 1907, was also cut and removed with diamond tools in four hours.

As the former Granite High School building was being made ready for demolition, Greene’s, Inc. performed over 200 feet of cutting to remove approximately 250 square feet of material from its walls. Each item was successfully removed without damage as required. Not only did the cutting contractor finish the work on time and under the agreed budget, but has since been awarded additional work on other projects by the general contractor.

“This job turned out great. I always trust that our operators will do what is expected of them and more. There was a little bit of pressure— we had to cut with minimal stress on some extremely fragile items that couldn’t be replaced. We were able to hand over the cut pieces to the Granite School District as planned,” concluded Greene.

REVIEW AND COMMENT ON THIS ARTICLE AT: WWW.CONCRETEOPENINGS.COM

38 | DECEMBER.17

COMPANY PROFILE Greene’s, Inc. is based in Woods Cross, Utah and has been a CSDA member for 27 years. The company has been in business since 1990, has 50 employees, 25 trucks and services the entire state of Utah. Greene’s, Inc. offers the concrete services of core drilling, wall sawing, wire sawing, flat sawing, selective demolition, epoxy injection and joint sealing.

RESOURCES General Contractor: Reynolds Brothers Excavating Sawing and Drilling Contractor: Greene’s, Inc. Woods Cross, Utah Phone: 801-292-6699 Email: jimmyg@greenesinc.com Website: www.greenesinc.com METHODS USED: Wall Sawing

Tech Talk Tech Talk is a regular feature of Concrete Openings magazine, focusing on equipment, maintenance and technical issues of interest to concrete cutting, polishing and imaging contractors. Readers wishing to have a particular subject addressed can call or email CSDA with their suggestions at 727-577-5004 or rhitchen@concreteopenings.com.

Diamond Blades: Softer Doesn’t Always Mean Faster

By Dan Dennison

T

here are a number of misconceptions in the concrete sawing and drilling industry about diamond blades, so I would like to take this opportunity to address the one that I hear the most when working with professional cutting contractors.

When an operator feels a blade is not cutting quick enough, the comment I often hear is that the blade needs to be “softer.” This is a valid statement, in theory, but in practice it is not always the answer.

There are countless configurations of blade segments in the market today, but the main components in all of them are diamonds. Almost every manufacturer in the industry continues to try and find the optimum balance between the diamonds and the matrix that holds them in place. As a blade cuts through a material, the matrix in the segments is worn away to expose new diamonds and this process is repeated throughout the life of the blade.

When someone mentions that the blade needs to be “softened,” there are two ways to achieve this. The manufacturer can either lower the concentration of the diamond in the segment, or a different mix of metal powders can be used that will react in a “softer” manner (will wear away faster). If the material being cut is not abrasive, the blade will cut “hard” because the combination of the diamond and the matrix is not creating the proper amount of wear. If the material is too abrasive, it can create a similar situation.

The result of the matrix being worn at too rapid a pace is referred to as “premature fallout.” This phenomenon occurs when a diamond that is supposed to be making contact with the cutting face and helping create the cut falls out of the segment prematurely.

This leaves empty pockets in the matrix and results in the same hard cutting as a blade that isn’t wearing quickly enough.

As mentioned above, the two ways to soften a blade are to soften the matrix in

40 | DECEMBER.17

The uniform placement of diamonds in blade segments can improve cutting performance.

the segments or lower the concentricity of diamonds. If either of those adjustments are made to the segment, however, it may exacerbate the problem rather than fix it.

Even though it may seem counterproductive, sometimes the best remedy to this situation is to firm up the matrix so that it holds the diamond in the segment until its usefulness is completely depleted.

When examining a blade that is not achieving the speed or footage expected, it is recommended to look at the segments under a magnifier (failing that, the zoom lens of a smart phone camera can also work) and examine whether empty pockets exist on the top of the segments or not. If these pockets can be seen, then the blade has experienced premature fallout of diamonds from the segments.

As is the case in most applications, the devil is in the details. Described above is a general theory behind diamond blade segment construction. There are countless ways that these problems can be remedied beyond just

the standard “hardening” or “softening” of the segments. One of the ways to help with the issue of premature fallout is to use a coated diamond. In this scenario, the diamond is coated with an outside agent that helps to bond the diamond to the matrix. This helps secure the diamonds in the matrix long enough so that they can be used to their full potential.

This is a good way to add life to a blade that is cutting an abrasive material.

Another way to help a blade’s performance is to adjust the mesh size of the diamonds in the segments. Some diamonds are smaller than others, and adding these finer diamonds into a segment can drastically alter the blade’s performance. If there is a larger quantity of finer diamonds in the segment, then there are more diamonds available to make contact with the cutting face. In situations where a contractor is experiencing premature fallout of the larger diamonds, the smaller diamonds will remain in place to maintain a good level of production. These are just two of several

methods that can be employed to adjust the blade segments and increase blade life while keeping a consistent cutting speed.

The power of the concrete saw being used to turn the blade is also significant when discussing diamond blade performance, yet is often overlooked. The difference in blade performance on a 30-horsepower electric saw compared to a blade on a 65 or 70-horsepower saw is substantial. Using a blade on a 99-horsepower saw is even more substantial.

The horsepower of the saw has to be considered when making a recommendation on what type of blade should be used. The more power a saw has, the stronger the matrix has to be. If an operator tried to use a blade built for a 99-horsepower machine on a saw with just 30 horsepower, the blade would cut very hard due to a lack of torque in the saw. Simply, there would not be enough power to wear away the harder matrix. In this scenario, softening the blade would be the right answer.

All of these variables are what manufacturers consider when trying to find the perfect combination of matrix construction and diamond placement for diamond blade segments. The ultimate goal is to give concrete sawing and drilling contractors the absolute best possible performance from their diamond blades.

A growing, and welcome trend noticed in the industry over the past few years is that contractors are taking more interest in the actual engineering of their diamond blades. This is great news for manufacturers, as the more concrete cutters are educated on diamond blade engineering, the easier it is to troubleshoot issues when they arise. Through continuing education about diamond tools and concrete cutting equipment, it is hoped that the automatic notion of a blade needing to be made softer to cut faster can be removed from people’s thought processes. We all need to be mindful of the numerous variables that contribute to the performance and lifespan of a diamond blade, and that the solution may be a better blade rather than a softer blade.

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Dan Dennison represents CSDA member Diamond Tools Technology and is based in Indianapolis, Indiana. He has over 10 years of experience in the diamond tooling industry through employment with Hoffman Diamond Products and his current employer. Dennison has held a variety of roles in the industry that focus on the engineering and sales of diamond blades, and currently serves on the CSDA Board of Directors. He can be reached at 814-591-3252 or ddennison@diamondtoolstechnology.com.

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AWARDS WEDNESDAY, JANUARY 24, 2018 10 AM, World of Concrete Booth #C4433 C O N C RET E O P EN I N G S | 4 1

Core Health Industry Bits continued

The Gluten-Free Craze— Facts, Fiction and New Research

By Erin O’Brien

U

nless you’ve been living under a rock for the past several years (or just busy growing your concrete renovation business!), you have almost certainly heard about gluten, and likely how bad it can be for you. Restaurants, grocery stores and chefs all across the country (and the world) are now promoting their gluten-free menus, food items and cookbooks. There are gluten-free, low-carb and sugar-free diets and advice everywhere you look.

The gluten-free trend began a few years ago when low-carb and low-sugar diets were also trending. Celebrities (looking at you, Gwenyth Paltrow) and well-known athletes began discussing and promoting a gluten-free lifestyle as a way to improve your overall health and lose weight. Gluten-free diets have been around much longer, however, because of a small portion of the population diagnosed with celiac disease. Celiac disease is an autoimmune reaction to wheat that is provoked by gluten ingestion. About 30-40% of people have the genetic background to develop celiac disease, although only about 1-3% actually develop the disease. The reasons for this are unknown, but it may have something to do with the bacteria in your gut. Research is ongoing.

Another small part of the population has been medically diagnosed with gluten sensitivity.

These people have a measurable negative reaction to gluten itself. Occurrences of gluten sensitivity are thought to be anywhere from less than 1% to 12% of the population, but a specific diagnosis is difficult to determine. Finally, a very small (less than 0.1%) of the population has a wheat allergy, which has similar symptoms to both celiac disease and gluten sensitivity.

Symptoms of celiac disease and gluten sensitivity include: • Inflammation, swelling or pain around your joints • Mood issues (anxiety, depression, ADHD) • Digestive issues (bloating, gas, diarrhea, constipation) • Ketosis Pilaris (“chicken skin” on the back of your arms) • Migraines • Fatigue or brain fog, especially after a meal • Dizziness or feeling off-balance

42 | DECEMBER.17

HIGH-FODMAP FOODS TO AVOID

• •

•

Hormone imbalances (PMS, unexplained infertility) Diagnosis of an auto-immune disease (rheumatoid arthritis, ulcerative colitis, lupus, psoriasis, multiple sclerosis, scleroderma), obesity and Type 2 diabetes Diagnosis of chronic fatigue or fibromyalgia

However, recently a much larger part of the population has self-diagnosed themselves as “gluten-intolerant”. These people have no medical diagnosis of celiac, wheat allergies or gluten sensitivity, but believe they show many of the same symptoms and that gluten is the culprit. It is this part of the population that has helped the glutenfree trend explode in the last few years (much to the chagrin of restauranteurs, who must go through extensive measures to keep gluten out of the meals of those who will have a severe and sometimes life-threatening reaction to gluten).

Gluten is a protein found in grains like wheat, barley and rye. These grains are made up of many things, like other proteins and carbohydrates.

Carbohydrates contain sugar, which can cause a spike in blood sugar levels, and therefore be problematic for people with high blood pressure, diabetes and cardiovascular disease. In these cases, however, the carbohydrates are the problem and not the gluten protein. Gluten, and some other proteins found in wheat, have been shown to cause inflammation in the gut of some people, making them “gluten-sensitive.” People with gluten sensitivity would benefit from a diet lower in highcarbohydrate foods like bread, pasta and foods containing considerable amounts of wheat.

Vegetables Garlic Onions Asparagus Most Beans/Peas Mushrooms Fruits Apples Bananas Avacados Cherries Grapefruit Peaches Watermelon Dairy Yogurt Cow’s milk Meats Chorizo Sausages Grains Wheat Barley Rye Granola Semolina Drinks/Condiments Cashews Sugar Honey Fruit Juice Soda Beer Wine Rum LOW FODMAP FOODS Vegetables Broccoli Bok Choy Brussels Sprouts Butternut Squash Carrots Chickpeas

Cucumber Green Beans Peppers Kale/Lettuce/Greens Potatoes (white and sweet) Tomatoes Zucchini Fruit Blueberries Raspberries Strawberries Melon Grapes Kiwi Lemon/Lime Oranges Pineapple Dairy Almond, Rice and Coconut Milk Butter Greek Yogurt Cheese Meats/Protein Non-processed meats Eggs Fish/Seafood Most nuts Tofu Grains Wheat-free breads and other products Buckwheat Oatmeal Quinoa Rice Drinks/Condiments Chocolate Peanut Butter Maple Syrup Mustard Soy Sauce Most herbs and spices Coffee Green tea

New research however, may be able to prove that gluten is not the culprit of these symptoms in those with non-celiac gluten sensitivity. Instead, a carbohydrate called fructan may be to blame.

Over the past several years, scientists began to suspect that other elements in grains are causing these digestion issues. They have isolated a group of carbohydrates called FODMAPs (fermentable oligosaccharides, disaccharides, monosaccharides and polyols) which humans lack the digestive enzymes to break down. FODMAPs reach the large intestine undigested, where they are fermented by bacteria in your gut. That process produces gas and can lead to discomfort for some people.

The problem with FODMAPs is that they are found in many foods that also contain gluten, like pasta and white bread, so it has been difficult to determine the cause of these digestive issues.

FODMAPs also include the fructose (sugar) in fruits and vegetables, the lactose in dairy products, the galactans in legumes (beans and peanuts) and the fructans in wheat and rye, as well as in other foods like avocados, artichokes, asparagus, leeks, garlic and onions. Kind of limits our diets, right?

The good news—this new research shows that fructan is likely to be the main cause of digestive problems in people who do not have celiac disease or a wheat allergy. A new study in the journal Gastroenterology shows that fructan caused more stomach upset than gluten in a group of people who thought they were gluten sensitive. A review of double-blind, placebo-controlled trials on people self-reporting gluten sensitivity (meaning medically significant and valid trials) found that only 16% of people who respond to a gluten-free diet had real non-celiac gluten sensitivity. The rest have sensitivities to other foods (including those with fructan), meaning they experience symptoms even when they’re not eating gluten.

So what does this mean? Most of us can stop worrying about eliminating gluten from our diets.

But if you are someone who has experienced digestion discomfort after eating things like bread and pasta, you just need to be smarter about what you eat. Wheat, barley and rye still need to be avoided, as they contain elevated levels of FODMAPs. But sourdough bread and some pastas are low-FODMAP and can still be consumed. You don’t have to eliminate FODMAPs all together— feeding the beneficial bacteria in your gut is not a bad thing, and a little fructan is probably a good thing. Just limit your intake of products containing wheat and FODMAPs (see sidebar for a list of highFODMAP foods to avoid).

As always, with any significant change in your diet, concerns about symptoms or just general questions, always consult your doctor (and not “Dr. Google”). Try eliminating bread, pasta and

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products containing wheat for about a month (this is how long it will take to rid your body of all the carbohydrates and proteins that could be causing issues) and then slowly re-introduce these items back in to your diet to see which ones cause symptoms to return. For those interested in reducing or eliminating carbs or gluten from their diet, to either improve overall health or lose weight, the elimination period is a good way to determine the effect it will have on your body.

Erin O’Brien, MS, ATC is a Certified Athletic Trainer and Marketing Director for O’Brien International, the association management company that manages the Concrete Sawing & Drilling Association. O’Brien received her Bachelor of Science degree in Athletic Training from Ohio University and her Master of Science degree in Applied Physiology and Kinesiology from the University of Florida. She is also a Certified Level 2 CrossFit Instructor and member of CrossFit9 in St. Petersburg, FL. She is a regular contributor to Concrete Openings magazine. She can be reached at erin@csda.org or 727-577-5002.

C O N C RET E O P EN I N G S | 4 3

The Business of Business

Changing How We Deal with Change

By Ryan Rindlisbacher

C

hange is hard. We, as people, are all creatures of habit to one extent or another. There seems to be dichotomy in each of us that looks forward to bigger and better things, yet at the same time dreads the required change. A simple example of this is our use of cell phones. We can get excited about upgrading to the newest model available, but get frustrated when it isn’t exactly like our old phone and we are forced to learn a new way of using it. As the saying goes, “the only thing constant in life is change.”

As a key decision-maker in business, this love/hate relationship with change can be ever present. The struggle between the status quo and growth is real, and can be paralyzing at times. But growth, by its very definition, implies change. Learning to do things differently requires both brain power and the willingness to take a chance. Luckily, this risk can often be mitigated with small course corrections as needed, allowing the overall goal to remain while learning from the process.

If you stop and think about what life was like, even just a decade ago, it is amazing how much change we have witnessed. A personal book shelf no longer has encyclopedias on it; you now have substantially more information available on the cell phone in your pocket than the encyclopedias ever contained. Or, try to remember the last time you stopped by the nearest gas station to ask for directions from the local attendant. But more importantly, could you imagine never having contact with any of your operators or crew members once you send them on their way for the day?

Technology has changed the way we conduct our lives and our businesses.

So how do we look forward to change instead of fearing it? Here are 10 suggestions.

1) FOCUS ON THE POSITIVES. It is always easier to complain than to focus on the good. For example, Microsoft introduced massive changes to Windows when it went from version 7 to 8. Windows 7 had a “tried and true” feel, while Windows 8 left many staring at a computer screen wondering how to use it. But Windows 8 brought exciting new technology like touch screen support that was later enhanced to become Windows 10. Those that use touch screen tablets and notebooks know how

44 | DECEMBER.17

difficult it would be to lose that functionality.

Taking time to think about the advantages can change our perspectives.

2) DON’T QUIT. Just as the Windows example demonstrated, if Microsoft had given up or reverted back to Windows 7, we would be the real losers. Luckily, they persevered and kept imagining and improving. We must do the same. Sometimes change feels like three steps forward, one step back. But don’t let the one step back discourage you. Regroup, refocus and keep going.

3) HAVE CLEARLY DEFINED GOALS.

5) PUT YOUR CUSTOMERS FIRST. As the world changes, we must change with it. It wasn’t too long ago that fax machines would spit out paper with work requests from customers. Nowadays, customers have taken to texting the dispatcher. If we don’t find ways to keep up with our customers, they will find someone who will (remember that faxing was once a new technology too!). Being able to meet your customers’ needs will require you to keep adjusting and keep changing. Remember, if you don’t keep your customers happy, someone else will.

It is difficult to measure success if we don’t have a vision of what it looks like. From Alice in Wonderland, we read, “Would you tell me, please, which way I ought to go from here?”

“That depends a good deal on where you want to get to,” said the Cat. “I don’t much care where–” said Alice.

“Then it doesn’t matter which way you go,” said the Cat. Nothing worthwhile comes easy, and business success is no different. Keeping a clear eye on the goals helps you make small course corrections before they become major problems.

4) DON’T BE INSANE. I’m sure we have all heard the saying, “The definition of insanity is doing the same thing over and over again and expecting different results” (a phrase often attributed to Albert Einstein, though the actual author is unknown). As a business changes and grows, it is common to want to manage that business the same old way we always have.

After all, it is comfortable and has worked in the past. But a changing business requires changing procedures and processes. It requires new (and sometimes temporarily uncomfortable) ways of tackling tasks.

For example, if a business starts with two concrete cutters then keeping track of their schedule can done in their head or on the back of a napkin. But as the business grows to 5, 10, 20 or 40 employees, new ways must be incorporated to manage and track everyone’s time and schedule.

6) TAKE THE TIME TO LEARN. Whether it is a new phone, a computer system or a new saw, a sure way of being frustrated is to never take the time to learn how to properly use it. Assuming the new always works like the old is a scary assumption. Even in today’s fast and furious world, taking the time to think through new things, to learn how they really work and how they can best be implemented into your specific organization will pay large dividends in the long run. We no longer have the luxury of proclaiming: “I don’t want to learn anything new.” Our technologically everchanging world dictates that we must or we will be left behind. For a good illustration of this, read Who Moved My Cheese? by Spencer Johnson.

7) HAVE PATIENCE. Businesses do not always get it right.

Making the correct decision 100% of the time is simply unrealistic. That applies to every business, regardless of size. No one is immune. Referring back to the Windows example, we can see how Microsoft demonstrated leadership. Windows 8 was a major step forward, but it also had many failings. Learning from your mistakes, correcting them and moving forward is an important aspect of change. Business, and its corresponding tools and practices, are in a constant state of flux. Use change as a tool to improve.

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8) SHARE YOUR VOICE. Some companies are better at this than others. Make sure to align yourself with companies that want your input.

For example, if you purchase a new saw that has a design flaw, don’t just set it aside, speak up! Let your experience and knowledge be heard. Be willing to go to bat for your ideas. Obviously not everything in the world will be created exactly how you want it, but if enough people combine their voices, smart companies will listen. You can be a voice for change and improvement.

9) LISTEN. Just as you can have a voice, so should your customers and employees. Part of being a great leader is realizing you will not always have the best idea. Learning to listen, and then carefully analyzing the merits of a new idea is important. Looking ahead and envisioning how the new idea could affect your business for the good (or bad) is an important characteristic to nurture and develop. The important thing is to be willing; willing to look at problems from a different angle; willing to improve; willing to listen to others; willing to change.

10) FORMULATE A PLAN THAT WORKS FOR YOU. Some people prefer things not to change, and some take it to the next level and simply refuse to learn anything new. Working with various personalities provides a balance in the work place, but can be difficult trying to grow and improve. The key is exploiting people’s strengths while working around their weaknesses. Let’s say an owner hates office work. As their business grows, the owner could offload some of these responsibilities to others that enjoy

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them. This permits the company to grow and allows everyone to excel at what they enjoy doing. How and what should be delegated is largely determined by personalities and available resources, but using experts to perform needed tasks is a great way to facilitate positive change.

As you think about how you and your business can be better tomorrow than you are today, it is implicit that doing better requires some form of change.

Learning to embrace and manage that change is a key leadership trait. Failure to

do so, while temporarily easy and merely adequate, will prove to be detrimental in the long run. Change should be beneficial and fun—if we learn how to make it so.

Ryan Rindlisbacher is a Ph.D. student with a Master’s degree in Business Administration and Bachelor’s degree in Information Technology. He is also one of the co-founders and the managing partner of CSDA member CentralPoint Solutions, LLC based in Herriman, Utah. Ryan can be reached at 801-478-6822 or at rhr@cenpoint.com.

C O N C RET E O P EN I N G S | 4 5

Industry Bits Diamond Products Announces New Core Vac Brand

Brokk 60 II Demolition Machine Unveiled Brokk is pleased to introduce the updated Brokk 60 II demolition machine to the industry, which features 10 percent more power than the original Brokk 60. The new model is the smallest unit in the company’s fleet and has an upgraded hydraulic system that increases the machine’s power. Brokk has also improved the machine’s handling to make it more maneuverable in tight spaces. The Brokk 60 II weighs 1,102 pounds while measuring 23.2-inches wide and 34.3-inches tall. Aside from its use in the construction industry, this machine is also ideal for other applications where limited space is common, such as mining, nuclear and process industries. The unit’s three-part arm system works with a variety of attachments including hydraulic hammers, grapples, crushers and buckets. Brokk is showcasing the Brokk 60 II at booth C4319 during World of Concrete in Las Vegas, January 23-26, 2018.

Diamond Products Limited announces the launch of Core Vac, a new product brand and line of dust containment items for the professional user. Dust Bandits are a line of shrouds that capture dust created from the use of core bits and cup grinders. Dust Bandits will fit around core bits up to 8 inches in diameter. Meanwhile, the CV1900 vacuum is the first model released by Diamond Products to give customers more options for dust collection and containment.

The 375-pound vacuum has a 15-foot hose and is powered by a 6-horsepower engine.

The vacuum collector can hold a 30-gallon drum. Core Vac accompanies the other wellknown Diamond Products product lines of Core Cut, Core Bore and Tyrolit Abrasives.

For More Information Contact: Jim Palmer Tel: 800-321-5336 Email: jpalmer@diamondproducts.com www.diamondproducts.com

For More Information Contact: Peter Bigwood Tel: 413-537-5572 Email: peter@brokkinc.com www.brokk.com

New 13-Horsepower Flat Saw from Diamond Vantage Diamond Vantage is excited to introduce its new 13-horsepower FS-18-13H walkbehind flat saw. The 254-pound saw has been built from the ground up to provide years of reliable cutting and has an 18-inch-diameter guard capacity. The FS-18-13H will cut concrete and asphalt with little to no vibration because of its heavy-gauge steel frame, rugged shaft and bearing assembly. The saw also features precision machined arbor shafts, a multiple-belt power transfer system, a heavy-duty 7-gauge steel construction and large screw-type depth control locks for consistent cutting depth.

For More Information Contact: Troy Laidlaw Tel: 866-322-4078 Email: tlaidlaw@diamondvantage.com

46 | DECEMBER.17

DITEQ Releases New HYCON Hand Saw Line DITEQ Corporation is pleased to release its new line of HYCON hand saws. These new machines are available in 14-, 16-, and 20-inch-diameter models. All have an integrated, state-of-the-art motor designed specifically for HYCON saws. These new saws have been designed with direct drive shafts and sleek designs with all internal connections. The integral motor is capable of high working pressures, high return pressures and extreme shaft load arising from handheld cutting work with diamond blades. A safety trigger brings the blade to a complete stop within 8-9 seconds.

For More Information Contact: Mike Orzechowski Tel: 816-447-6161 Email: mikeo@diteq.com www.diteq.com

Hilti Introduces Integrated Water Pump for Gas Saws

Merit to Debut Tier 4 Flat Saw at World of Concrete Merit Engineering and Equipment Company will debut the M600SS56HP-D—its first Tier 4 model in a growing line of diesel flat saws—at World of Concrete 2018 in January. Merit’s new model is compliant with EPA and California Air Resources Board (CARB) emission standards. The M600SS56HP-D has a compact design and has been designed for maximum fuel efficiency. Unlike other Tier 4 engines that use DPF filters and consume more fuel, the Merit model uses the DOC filter, which offers no fuel waste and provides low or no maintenance to the emissions components. Visit Merit at World of Concrete (Booth O31272) to explore this and other popular models, including a number of Interim Tier 4 floor saws.

For More Information Contact: Alexis Ferguson DiMarco Tel: 917-274-7203 Email: adimarco@meritsaw.com www.meritsaw.com

™

Hilti is pleased to introduce its integrated water pump DSH-P for the company’s line of handheld gas saws.

The first of its kind in the industry, this new water pump has been designed as a means of dust control in the professional construction industry when a pressurized water source is not readily available. Simply fill-up a bucket of water or use another static water source and attach the water pump system to a Hilti gas-powered handheld saw. The DSH-P leverages the power of the gas saw to produce pressurized water and reduce airborne dust.

The Hilti integrated water pump comes with 10 feet of hose and is compatible with Hilti gas-powered DSH 700-X and 900-X handheld saws. This product was showcased during Hilti’s 2017 Innovation Day in September. For more details of this event, visit concreteopenings.com.

For More Information Tel: 800-879-8000 (U.S.), 800-363-4458 (Canada) www.us.hilti.com (U.S.), www.hilti.ca (Canada)

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Industry Bits GSSI Offers Palm XT Antenna for StructureScanTM Mini XT

Vacuworx Releases CM 3 Vacuum Lifting System Vacuworx has released the CM 3 – a compact modular vacuum lifting system that is adaptable to multiple applications and host machines. The CM 3 features an all-steel construction to handle materials up to 6,600 pounds. The first vacuum lifting solution of its kind, the patent-pending CM 3 allows larger skid steers and track loaders to lift concrete slabs, steel plates and pipe. A hydraulically driven vacuum pump operates using the auxiliary hydraulics from the host machine (minimum 10 GPM required with maximum 3,000 PSI) and the 499-pound attachment weighs the same as a standard bucket, so no change in lift capacity of the host machine (with standard mounting assembly). It also includes quick-connect hydraulic hoses and a factory pre-set flow control valve to ensure optimal performance on any host machine. The CM 3 can accommodate single or double pad configurations and has an adjustable spreader beam that extends from 61 to 85 inches for double pads.

For More Information Contact: Paula Bell Tel: 918-259-3050 Email: paulab@vacuworx.com www.vacuworx.com

DiamondBack Announces New GR8 Blades DiamondBack Diamond Tools, Inc. is pleased to present its new line of GR8 diamond blades for use on hand saws and other professional equipment.

The lineup of GR8 hand saw blades are available in diameters of 14 and 16 inches. There are also larger sizes available in the GR8 lineup that range up to 30 inches in diameter.

GR8 blades are available in widths from 0.125 to 0.165 inch. Segment height is 0.472 inches. Notched segments on the blades have been designed for faster cutting in reinforced concrete, river rock, concrete, brick walls and stone. The blades have a 1-inch arbor with flush cut holes, are core tensioned and laser welded.

For More Information Contact: Patrick Lemieux Jr. Tel: 954-990-7366 Email: patrick@diaback.com www.diaback.com

48 | DECEMBER.17

GSSI has announced the availability of a new accessory for the company’s StructureScan™ Mini XT. The Palm XT is a miniaturized GPR antenna designed to greatly enhance the capabilities of the StructureScan™ Mini XT all-in-one GPR concrete inspection system. The handheld Palm XT antenna turns a basic Mini XT into an advanced system by giving users improved access in tightly spaced areas and enabling overhead scanning.

The 2300 MHz Palm XT antenna features full keypad control via the antenna top for remote control of the user interface. It provides users with three data collection modes; standard, cross polarization and side car. The Mini XT is designed for locating rebar, conduits, post-tension cables and voids.

It can help identify structural elements, including pan deck and concrete cover, and can also provide real time determination of concrete slab thickness.

For More Information Contact: Jami Harmon Tel: 603-893-1109 Email: harmonj@geophysical.com

Husqvarna Introduces MS 360 Vacuum Attachment The new Husqvarna MS 360 vacuum attachment enables dust to be collected from MS 360 and MS 360 G machines the moment it is created, providing a cleaner work environment. The vacuum attachment affixes to the MS 360’s conveyor cart by lining up two pins to two holes on the conveyor cart. A dust trough fits in the groove on the cart to catch and easily remove dust produced while cutting. It almost completely surrounds the blade and can be adjusted for different material sizes. Once attached to the conveyor cart, the MS 360 is then connected to a 250-CFM or more vacuum equipped with a HEPA filter, such as the Husqvarna S 26 or S 36, to meet OSHA silica regulations.

For More Information Contact: Cate Stratemeier Tel: 913-928-1442 Email: cate.stratemeier@husqvarnagroup.com

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Industry Bits Real Power Introduces Truck-Mounted Electric Generator

Expert Equipment Now Exclusive Distributor for Dr. Bender Expert Equipment Company of Houston, Texas is very pleased to announce its exclusive distributorship of Dr. Bender single-phase and three-phase electric core drill machines. Dr. Bender was founded in 1949 in the Black Forest area of Germany, known for its engineering and precision. The manufacturer offers a full line of high quality handheld and stand-mounted core drills that can now be offered in North America through Expert Equipment. Among the models offered is a 20-amp EBL33F three-speed handheld drill and a 30-amp BBMLL extra three-speed standmounted unit with a load RPM of 650/375/155.

For More Information Contact: Markus Bartl Tel: 713-797-9886 Email: info@expertequipment.com

Real Power is excited to announce a dedicated line of electrical generator systems for concrete cutters across the U.S. The company has been in the business of generating power with 80% less weight and zero bed space for over a decade, but this new configuration from Real Power marks its debut in this industry. Pictured is a Ford F550 from CSDA member ABC Cutting Contractors, Inc. - Indiana with over 60 kilowatts of power for a 40-horsepower flat saw, a water pump and an array of hand tools that can be run simultaneously.

Hidden underneath is Real Power’s patented PTO powered generator system that fits over the rear axle with no impact to ground clearance.

The company has a wide array of power sizes and outlet configurations available to meet any requirement.

For More Information Contact: Bob Beasley Tel: 317-275-9314 Email: bbeasley@realacpower.com www.realacpower.com

2018 CONVENTION

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HELICOPTER TOUR OF MAUI MARCH 8 | 2 PM – 5 PM All Terrain Concrete Cutting Attachment CSDA member John Baaske of Northwest Indiana Concrete Cutting and JS Innovations are excited to introduce the patented All Terrain Concrete Cutting Attachment (as featured in the Chicago Riverwalk Expansion job story, September 2017 Concrete Openings). The attachment has the capability to assist with curb cuts to complex concrete cutting jobs. The head articulates horizontally from -5 degrees to 90 degrees and reaches anywhere from flush to the floor to 7 feet. The attachment is only limited by the reach of the skid steer it is attached to. The cutter head has a 16-inch plunge travel. Easy and quick off the trailer to hook up and can be ready to go in five minutes. The attachment can access hard to reach areas or remote locations.

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csda.org/convention | 727-577-5004 50 | DECEMBER.17

For More Information Contact: Stacy Deming Tel: 219-865-0006 Email; jsinnovationsllc@gmail.com www.allterrainconcretesaw.com

STIHL Introduces TS 440 Cut-Off Machine STIHL’s new 66.7-cc TS 440 Cutquik® cut-off machine has been introduced to give professionals a 24.7-pound product suited for challenging cuts such as bottom portions of walls, cutting in corners and cutting the underside of in-ground pipes made of concrete, ductile iron, vitrified clay and steel. The saw’s expanded guard adjustability is made possible by the world-first sensor-activated STIHL QuickstopTM wheel brake technology, capable of stopping the rotation of the cutting wheel in fractions of a second if kickback occurs. The TS 440’s two-belt drive delivers high torque to the wheel, reducing the chance of bogging when applying higher feed force as the operator cuts up to 4.9 inches deep. Other features include electronic water control, STIHL’s X2 air filtration system and an ElastoStart™ starter handle with built-in shock absorber.

For More Information Tel: 757-486-9100 www.stihlusa.com

New Cordless Rotary Hammer from Bosch The new Bosch GBH18V-20 ¾-inch SDS-plus® rotary hammer has 5,850 BPM of power and weighs 5.7 pounds. It delivers 1.3 foot-pounds of torque in a tool with three modes for drilling, hammer drilling and chiseling. The rotary hammer’s no-load speed for drilling comes in at 1,800 RPM. The Bosch GBH18V-20 is made for typical construction applications like screw fitting, drilling in concrete or wood, hammer drilling and chiseling. Its motor/battery combination delivers a high number of holes per charge; up to 25 holes per amp hour, and offers variable speed performance with forward/ reverse function.

An LED work light is included for working in dark areas. The tool also includes Bosch-exclusive Electronic Cell Protection (ECP) that protects the battery against overload, overheating and deep discharge for longer life. Likewise, Bosch Electronic Motor Protection (EMP) protects the motor against overload with integrated temperature management.

For More Information Contact: Steve Wilcox Tel: 224-232-2417 Email: steve.wilcox@us.bosch.com

Hilti Expands Universal Vacuum Cleaner Portfolio Hilti recently expanded its portfolio of universal vacuum cleaners to seven different models. The VC 125-9 and VC 125-6 models are available in 9-gallon (VC125-9) and 6-gallon (VC 125-6) capacities, clean with 125 CFM power and are HEPA ready. Meanwhile, Hilti’s VC 150-10 X and VC 150-6 X wet and dry vacuums use Hilti’s AirBoost technology to deliver 150 CFM of air flow. The new models feature a 110-volt power outlet and automatic filter cleaning. Finally, the new Hilti VC 300-17 X has 300 CFM of power delivered by two turbines and protected by a tough, field-tested casing. It can pack in 17 gallons of debris. When paired with Hilti power tools and accessories, the vacuums complete a comprehensive dust removal system, helping cprofessionals reduce dust exposure and increase productivity, and when applicable, comply with OSHA’s respirable crystalline silica dust regulation.

The vacuums are ideal for dust extraction from grinding, cutting, slitting, drilling and dry coring tools, removal of slurry during wet coring applications, and cleaning wet and dry.

For More Information Tel: 800-879-8000 (U.S.), 800-363-4458 (Canada) www.us.hilti.com (U.S.), www.hilti.ca (Canada)

DITEQ Celebrates 15 Years, Announces New Hires DITEQ Corporation recently celebrated 15 years in the industry. To mark this milestone, the company held a luncheon and party. DITEQ thanks all its customers from these first 15 years in business, and the company is currently growing to better serve new and existing customers in the future. As part of this growth, DITEQ recently added four new employees (pictured, from left to right): Justen Seibolt—Inside Sales, Eleanor Nelson—Graphic Designer and Marketing Coordinator, Robert Carroll—Sales Manager, Stone Division and Lee Adkinson—warehouse.

For More Information Contact: Mike Orzechowski Tel: 816-447-6161 Email: mikeo@diteq.com www.diteq.com

Industry Bits

continued

Hiper 3 Floor Polishing System Released

by Husqvarna Husqvarna has released a new three-step floor polishing system, Hiper 3.

Hiper 3 is a new polishing system specifically for the DIY home improvement audience. Users can polish garage floors and other smaller spaces in as little as a weekend. They can rent a PG 450 grinder, an S 26 vacuum and a pre-stocked bucket containing the three-step pads, chemicals and step-by-step instructions from a local contractor supply rental distributor. The easy-to-follow steps include grinding with step 1 pads, applying the Chemical A liquid hardener, polishing with step 2 pads, fine polishing with step 3 pads, apply the Chemical B liquid sealer and fine polishing again with step 3 pads. To learn more visit husqvarnacp.com/us/hiper3/.

For More Information Contact: Cate Stratemeier Tel: 913-928-1442 Email: cate.stratemeier@husqvarnagroup.com

Sensors & Software Releases New Conquest 100 Carry Case Sensors & Software, a leading global provider of ground penetrating radar (GPR) technology, is pleased to announce a new carrying case for its Conquest 100 system. Conquest 100 is a light, portable device that enables users to locate rebar, post tension cables, metallic and non-metallic conduits and determine concrete slab thickness in real time. Conquest 100 incorporates two technologies, GPR and power cable detection (PCD), to locate rebar, conduits and live power cables at the same time. Every system now ships in this lightweight and portable carrying case, which is watertight and offers protection against impact, vibration and shock.

For More Information Contact: Troy De Souza Tel: 905-624-8909 Email: tds@sensoft.ca www.sensoft.ca

CentralPoint Solutions Introduces Silica Safety Plans

New Tungsten Carbide Core Bits from K2 Diamond K2 Diamond and Sanders Inc. are very excited to bring to market an innovative original product for drilling wood, the company’s new tungsten carbide wood cutting core bits. Both K2 and Sanders Inc. are aware that concrete cutting contractors don’t always drill wood, but when this need arises the new design of strategically-placed tungsten carbide teeth, mounted on a precisely machined core tube may be a strong option. Based on testing carried out by both K2 and Sanders, the tungsten carbide core bit produced drilling results that outperformed initial expectations. Engineered to provide aggressive cutting action without burning, these new wood cutting core bits range from 2 to 12 inches in diameter with additional sizes available upon request.

For More Information Contact: Mike Nelson (K2), Bill Chapple (Sanders) Tel: 800-539-6116 (K2), 610-273-3733 (Sanders) Email: mike.nelson@k2diamond.com, bchapple@sanderssaws.com

52 | DECEMBER.17

CentralPoint Solutions is pleased to announce the support of automatic safety plans, including silica safety plans, to the company’s CenPoint software platform. With very little setup, CenPoint builds custom safety plans for every work order without any further office interaction required. These safety plans are automatically delivered to CenPoint Mobile for Android, Apple and Windows devices. Safety plans can be configured to require the technician to sign the safety plan, guaranteeing the technician has reviewed and understands it. Plans can be viewed at the office or on the mobile device. CenPoint software was developed with input from industry leaders to help companies manage the office, employees, time cards, jobs, accounts receivable, and inventory/equipment in one place.

For More Information Contact: Ryan Rindlisbacher Tel: 801-478-6822 Email: sales@cenpoint.com

New Website Launched by Diamond Products Diamond Products Limited is pleased to announce the launch of its newly updated website at www.diamondproducts.com.

The new website’s layout allows easier access to product pages and technical information.

Product videos can also be easily viewed along with product manuals and warehouse locations. The new Diamond Products website can be viewed on all devices for access anywhere in the world.

For More Information Contact: Jim Palmer Tel: 800-321-5336 Email: jpalmer@diamondproducts.com www.diamondproducts.com

Hydrodemolition Services from Aggregate Technologies Aggregate Technologies, Inc., a CSDA contractor member based in Houston, Texas, has now added hydrodemolition to its list of services. Following extensive research, the company has purchased an Aqua Cutter 710V from Aquajet Systems AB and staff have received training on the machine’s capabilities. The hydrodemolition machine is suitable for jobs on roads, bridges, wharfs, industrial plants, nuclear plants, parking garages, columns, piers and other types of concrete restoration projects. Hydrodemolition is useful for removing concrete while leaving rebar in place, or can be used in areas where sparks or vibrations are not permitted.

Aggregate Technologies serves across the entire U.S. and is excited to offer this service to new and existing customers.

For More Information Contact: Ronnie Wills Tel: 281-850-2952 Email: ronnie@aggregatetechnologies.com www.aggregatetechnologies.com

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C O N C RET E O P EN I N G S | 5 3

Industry Bits

continued

Bosch Introduces BlueGranite Turbo™ Drill Bits Bosch is pleased to introduce its new line of BlueGranite Turbo™ carbide hammer drill bits, designed to deliver five times the life and twice the drilling speed of some standard masonry bits. The bit features an upgraded four-grind head, as well as a multi-grind centering tip or precise starts in masonry and other materials. The impact-rated bits have been redesigned with a hex shank for use in hammer drills and impact drivers.

BlueGranite Turbo™ bits are engineered for long life using Bosch premium carbide and a redesigned tip. The bits provide faster drilling thanks to milled flutes that allow rapid dust removal.

For More Information Contact: Steve Wilcox Tel: 224-232-2417 Email: steve.wilcox@us.bosch.com

Team STIHL at Reno Air Races The 2017 National Championship Air Races were held September 14-17 in Reno, Nevada and Team STIHL’s Once Moment Air Racing Team was part of the action. One Moment, a carbon fiber race plane, is a Lancair Super Legacy with a 600+ horsepower twin turbo engine and is piloted by Andrew Findlay (pictured standing central with lanyard), a test cell supervisor and engineer at STIHL Inc. Several of his colleagues serve as the racing plane’s crew. With the power of a custom McCauley Blackworks propeller and innovative crew, the plane can hit speeds of nearly 400mph.

For More Information www.stihlusa.com/community/team-stihl/stihl-air-racing/

David McArthur of Holemasters with players from Airdrieonians FC.

Holemasters Sponsors Soccer Team, Supports Charity Holemasters Scotland Limited, a CSDA contractor member based in the U.K., is pleased to announce its sponsorship of Airdrieonians FC, a professional soccer team that plays in the Scottish League One. Furthermore, Holemasters is proud to announce that a local charity, Maggie’s Cancer Care, accepted the contractor’s invitation to feature on the back of the team’s home shirt during the 2017-18 season. Rather than have the company’s logo on the front and back, Holemasters decided to work in conjunction with the charity and the soccer team to boost the profile of Maggie’s Cancer Care, a Lanarkshire-based care center, locally and nationally.

54 | DECEMBER.17

CSDA 2018 Annual Meeting Notice The Annual Meeting of the members of the Concrete Sawing & Drilling Association will take place at 10:30 AM on Saturday, March 10, 2018 at the Grand Wailea – a Waldorf Astoria Resort in Maui, Hawaii for the purpose of receiving reports, transacting business and electing directors.

For More Information Tel: 727-577-5004 Email: info@csda.org

Certification OPERATOR CERTIFICATION CSDA’s Operator Certification is a comprehensive six-day program that combines detailed classroom instruction with on-slab demonstration and evaluation of advanced concrete cutting techniques. Safety, proper equipment use and efficiency are emphasized. CSDA certified operators are recognized industry-wide for their proficiency in the full range of sawing and drilling applications.

CE RTIF IE D OPERATOR

MINIMUM REQUIREMENTS • Successful completion of CSDA Cutting Edge, Slab Sawing & Drilling 101, Wall Sawing 101 or Wire Sawing 101 • Three years field experience (4,500 hours) • Successful completion of 10-hour OSHA Construction Safety course • No more than one lost-time injury within the last three years • Unrestricted driver’s license • Negative drug test within 30 days of taking the course

ABC CUTTING CONTRACTORS BIRMINGHAM

CORING & CUTTING OF SPRINGFIELD, INC.

HOUSLEY DEMOLITION CO., INC.

Bessemer, Alabama

Nixa, Missouri

Visalia, California

ABC CUTTING CONTRACTORS MOBILE

CORING & CUTTING SERVICES, INC.

INTERNATIONAL DRILLING & SAWING, INC.

Daphine, Alabama

Bentonville, Arkansas

Montgomery, Alabama

ACE CONCRETE CUTTING

CORING & CUTTING SERVICES, INC.

INTERNATIONAL DRILLING & SAWING, INC.

Cumberland, Rhode Island

Jacksonville, Arkansas

Pensacola, Florida

ACCU-CUT CONCRETE SERVICES

CR MEYER

J-RAY CONTRACTORS, LLC

Palm Harbor, Florida

Oshkosh, Wisconsin

Marrero, Louisiana

AGGREGATE TECHNOLOGIES

CUT-RITE CONCRETE CUTTING CORP.

JACK DOHERTY CONTRACTING

Houston, Texas

Pawtucket, Rhode Island

Woburn, Massachussetts

AMERICAN EAGLE CONCRETE SERVICES

CUTTING EDGE SERVICES CORP.

K.C. CORING & CUTTING CONSTRUCTION, INC.

Orlando, Florida

Batavia, Ohio

Kansas City, Missouri

ANDERS CONSTRUCTION, INC.

D.M. CONLON/DAN-KEL CONCRETE CORING, SAWING & SCANNING

L&S FORMLESS CURB COMPANY

Myrtle Beach, South Carolina

LIUNA LOCAL 506 TRAINING CENTRE

Harvey, Louisiana

ATLANTIC CONCRETE CUTTING, INC. Mt. Holly, New Jersey

DARI CONCRETE SAWING AND DRILLING

AUSTIN ENTERPRISE

Raleigh, North Carolina

Bakersfield, California

DEANDREA CORING & SAWING, INC.

B.T. RENTALS LIMITED

Henderson, Colorado

Woodbrook, Trinidad & Tobago

DELTA CONTRACTORS & ASSOCIATES, LLC

CENTRAL CONCRETE CUTTING, INC.

Baltimore, Maryland

Hanover, Pennsylvania Richmond Hill, Ontario, Canada

LOMBARDO DIAMOND CORE DRILLING CO. Santa Clara, California

M6 CONCRETE CUTTING & CORING Wichita, Kansas

Edgar, Wisconsin

DIXIE CONCRETE CUTTING CO.

PENHALL COMPANY/CONCRETE CORING COMPANY OF HAWAII

CHESCO CORING & CUTTING, INC.

College Park, Georgia

Aiea, Hawaii

Malvern, Pennsylvania

EAST COAST CONCRETE SPECIALITIES, INC.

PG CUTTING SERVICES

CHICAGO CUT CONCRETE CUTTING

Jessup, Maryland

Lake Elsinore, California

Chicago, Illinois

ELMER’S CRANE & DOZER, INC.

QUICK CUTS CONCRETE CUTTING SERVICES, LLC

COBRA CONCRETE CUTTING SERVICES CO.

Traverse City, Michigan

Belvidere, Illinois

Arlington Heights, Illinois

FORRISTALL ENTERPRISES, INC.

ROUGHNECK CONCRETE DRILLING & SAWING

CONCRETE CUTTING & BREAKING CO.

Palmetto, Florida

Morton Grove, Illinois

Jacksonville, Florida

HAFNER & SON, INC.

SUPER CITY CONCRETE CUTTING

CONCRETE CUTTING SPECIALISTS, INC.

Danielsville, Pennsylvania

Ocean Grove, Victoria, Australia

Freeland, Michigan

HARD ROCK CONCRETE CUTTERS, INC.

TRUE LINE CORING & CUTTING OF CHATTANOOGA, LLC

CONCRETE PENETRATING CO.

Wheeling, Illinois

Chattanooga, Tennessee

Dallas, Texas

HARD ROCK SAWING & DRILLING SPECIALIST CO.

TRUE LINE CORING & CUTTING OF KNOXVILLE, LLC

CONCRETE RENOVATION, INC.

Keshena, Wisconsin

Knoxville, Tennessee

San Antonio, Texas

HOLES INCORPORATED

TRUE LINE CORING & CUTTING OF NASHVILLE, LLC

CONSTRUCTION DEBRIS REMOVAL, INC.

Houston, Texas

Nashville, Tennessee

St. Augustine, Florida

HOLES OF SAN ANTONIO, INC.

WOLF INDUSTRIAL SERVICES

CORE SOLUTIONS LTD.

San Antonio, Texas

Maraval, Trinidad & Tobago

56 | DECEMBER.17

San Francisco, California

COMPANY CERTIFICATION The CSDA Company Certification Program is the first of its kind in the industry. This program has been created for cutting contractors to provide owners, architects, engineers, general contractors and government officials with a valuable pre-qualification tool that acknowledges sound business practices. It is available to all sawing and drilling contractors.

CERT I F I ED COMPANY

A COMPANY MUST MEET THE FOLLOWING CRITERIA TO ACHIEVE CERTIFICATION: • Meet the basic safety, and insurance requirements of the industry • Undertake sound operational and financial best practices • Provide evidence it has took part in basic training or certification programs to better its employees and the company as a whole • Successfully pass a written application review

ATLANTIC CONCRETE CUTTING, INC.

DI-TECH INTERNATIONAL, INC.

Mount Holly, New Jersey

Winnipeg, Manitoba, Canada

AUSTIN ENTERPRISE

ECHO GPR

Bakersfield, California

Paola, Kansas

CENTRAL CONCRETE CUTTING, INC.

GREENE’S, INC.

Edgar, Wisconsin

Woods Cross, Utah

COBRA CONCRETE CUTTING SERVICES CO. HARD ROCK CONCRETE CUTTERS, INC. Arlington Heights, Illinois

Wheeling, Illinois

CONCRETE RENOVATION, INC.

HOLES INCORPORATED

San Antonio, Texas

Houston, Texas

CUTTING EDGE SERVICES CORP.

ONLINE CONCRETE CUTTING SERVICES PTY. LTD

Batavia, Ohio

DEANDREA CORING & SAWING, INC. Henderson, Colorado

Seven Hills, New South Wales, Australia

WESTCOAST CUTTING & CORING, LTD. Coquitlam, British Columbia, Canada

ST-115 CERTIFICATION This certification is the first of its kind for measuring concrete surfaces and their surface texture value. The approach is to measure and analyze the surface texture in order to understand how the texture is influenced by the finishing process, and how the surface texture influences its behavior with regards to gloss, friction and sustainability. The certification is based on Standard CSDA-ST-115.

A CERTIFIED OPERATOR: • Has been provided instruction on how to correctly measure concrete micro surface texture • Has knowledge of proper tool selection to mitigate damage • Passed a written test • Was issued a certificate upon completion of the class For more information about this Standard, certification or a list of current ST-115 Certified companies, visit www.csda.org/st115.

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C O N C RET E O P EN I N G S | 5 7

Membership

NE

North American Contractors

W

A & R SAWING & DRILLING CO. Kent, Washington

ME

ABATEMENT TECHNICAL SERVICES Norfolk, Virginia

MBE

ABC CUTTING CONTRACTORS, INC. INDIANA Indianapolis, Indiana

AMERICAN PAVEMENT SAWING, LLC Garden City, Michigan

BLADE RUNNERS

R

Gilbert, Arizona

CONCRETE CUTTING SPECIALISTS, LLC Miramar, Florida

PRECISION DRILLING Lubbock, Texas

SHAZAM CUTTING & CORING Westport, Connecticut

THE CONCRETE CUTTER, LLC Le Sueur, Minnesota

GPR Imaging Contractor DK IMAGING, LLC Barnardsville, North Carolina

Distributor RUSSO DIAMOND CUTTING SUPPLY Delray Beach, Florida

MANA’O CONSTRUCTION, LLC

S

Honolulu, Hawaii

MEMBER

BENEFITS SAFETY RESOURCES

T OUN S C S I D GRAM ember PROion negotiates mional

sociat ith nat The As programs w S and t les, UP p benefi a t S ovide e rs lik r to pr e d r o vendo .com in rtunities supply ppo V-belt vings o mbers. cost-sa DA Me for CS

58 | DECEMBER.17

NETWORKING

AND TOOLBOX SAFETY TIPS (TSTS) • 230-page CSDA Safety Manual • Safety Handbook in English/Spanish • Safety Videos for concrete cutters • Over 100 Toolbox Safety Tips (TSTs)

AT THE ANNUAL CONVENTION AND QUARTERLY MEETINGS The number one benefit for members has always been the opportunity to network with cutting professionals at the annual convention and quarterly meetings.

This networking provides opportunities to forge new relationships and learn from other experienced professionals.

NEXT GEN

CSDA NEXT GENERATION GROUP The group aims to continue the growth of the association while serving the needs and wants of the younger generation, with the goal of continuing to set a standard of excellence.

24/7

THE CSDA WEBSITE AT WWW.CSDA.ORG CONTAINS A WEALTH OF INFORMATION AVAILABLE 24/7 IN THE “MEMBERS” SECTION. IN ADDITION, CSDA’S FACEBOOK PAGE AND DISCUSSION FORUM GROUP PAGE ALSO PROVIDE MEMBERS WITH A CHANCE TO DISCUSS TECHNICAL ISSUES, SELL EQUIPMENT, HIRE EMPLOYEES OR ANY OTHER RELEVANT TOPICS.

TESTIMONIAL

TRAINING

People ask me all the time about my affiliation with CSDA and about what my company and I get out of it. My answer is always the same: “you can’t possibly know the value unless you are there.” As it is with any other organization I am associated with, the value of CSDA membership is in the people you meet and build relationships with. To be able to be a part of an organization that offers the amount of opportunity that CSDA does, from networking opportunities, formal meetings and training courses to the convention, it is truly an honor and a luxury.

OVER 4,000 INDUSTRY PROFESSIONALS HAVE GRADUATED FROM MORE THAN 20 CLASSROOM, HANDS-ON AND ONLINE CSDA TRAINING AND CERTIFICATION PROGRAMS FOCUSED ON CUTTING DISCIPLINES, ESTIMATING, POLISHING AND SAFETY. ONLINE TRAINING AT WWW.CSDATRAINING.COM OFFERS A COST-EFFECTIVE ALTERNATIVE TO THOSE NOT ABLE TO AFFORD THE TIME OR THE MONEY TO SEND OPERATORS TO CLASSES.

Dan Dennison Diamond Tools Technology Indianapolis, Indiana

The level of experience and comradery displayed by the folks involved are what make the association such a valuable entity. As a younger person, I look at CSDA as a vehicle that can help lead the industry that we love into the future. I appreciate the opportunity to have a voice in committees like the Next Generation Committee as well as the Membership Committee, which are both focused on keeping CSDA at the forefront of the industry.

With the leadership that is in place and the people involved, I see nothing but great things for the industry moving forward. I am thankful to CSDA for its commitment to improving the industry and I, for one, truly value my company’s membership. I would advise everyone to take a more active role in shaping the association and the industry through membership.

DUESSCHEDULE REGISTER ONLINE AT WWW.CSDA.ORG GROSS SALES

NORTH AMERICAN CONTRACTOR

POLISHING CONTRACTOR

GPR IMAGING MANUFACTURER DISTRIBUTOR OVERSEAS CONTRACTOR CONTRACTOR

$0 – 1M

$625

$750

$1,320

$960

$1 – 2M

$995

$1,630

$1,220

$2,430

$1,820

$2 – 3M

$1,525

$750

$3 – 5M

$2,050

$5 – 10M

$2,600

$1,250

$400

AFFILIATE

$765

$3,895 $5,275

$2,995

> $10M $3,260 $6,500

For more information about CSDA membership, visit www.csda.org, call 727-577-5004 or email info@csda.org.

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C O N C RET E O P EN I N G S | 5 9

Calendar

FEBRUARY 7-8 Canadian Concrete Expo The International Center Mississauga, Ontario, Canada Tel: 226-363-0550 Email: barb@exposition.com www.canadianconcreteexpo.com

FEBRUARY 26-28 AGC 99th Annual Convention Hyatt Regency New Orleans New Orleans, Louisiana Tel: 202-768-7917 Email: exhibitsales@agc.org www.agc.org

MARCH 6-7 CSDA Spring Meetings Grand Wailea – A Waldorf Astoria Resort Maui, Hawaii Tel: 727-577-5004 Email: info@csda.org www.csda.org

World of Concrete, Las Vegas, Nevada

2018 JANUARY 22-23

JANUARY 24

CSDA Estimating Class

CSDA Board Meeting

Las Vegas Convention Center Las Vegas, Nevada Tel: 727-577-5004 Email: info@csda.org www.csda.org

Las Vegas Convention Center Las Vegas, Nevada Tel: 727-577-5004 Email: info@csda.org www.csda.org

JANUARY 23

JANUARY 24

CSDA ST-115 Certification

Concrete Openings Awards

Las Vegas Convention Center Las Vegas, Nevada Tel: 727-577-5004 Email: info@csda.org www.csda.org

Las Vegas Convention Center, Booth C4433 Las Vegas, Nevada Tel: 727-577-5004 Email: rhitchen@concreteopenings.com www.concreteopenings.com

JANUARY 23-24

JANUARY 24

CSDA GPR Certification

CSDA Next Generation Reception

Las Vegas Convention Center Las Vegas, Nevada Tel: 727-577-5004 Email: info@csda.org www.csda.org

The Renaissance Las Vegas Las Vegas, Nevada Tel: 727-577-5004 Email: info@csda.org www.csda.org

JANUARY 23-26

JANUARY 24-25

World of Concrete

CSDA Concrete Polishing 101 Training

Las Vegas Convention Center Las Vegas, Nevada Tel: 972-536-6423 www.worldofconcrete.com

Las Vegas Convention Center Las Vegas, Nevada Tel: 727-577-5004 Email: info@csda.org www.csda.org

60 | DECEMBER.17

MARCH 8-10 CSDA 2018 Convention & Tech Fair Grand Wailea – A Waldorf Astoria Resort Maui, Hawaii Tel: 727-577-5004 Email: info@csda.org www.csda.org

MARCH 19-20 New York Build Expo 2018 Javits Center New York, New York Tel: 315-636-4844 Email: info@oliverkinross.com www.newyorkbuildexpo.com

MAY 21-23 IACDS 2018 Annual Convention Hotel Mielparque Tokyo Tokyo, Japan Tel: 34 911 294 440 Email: info@iacds.org www.iacds.org

Advertising and Readership Circulation 19,000+ minimum, per issue 12,000+ member and prospective member companies made up of contractors, manufacturers, distributors and affiliates

7,000+ general contractors, engineers, architects and government officials who specify cutting, polishing and imaging

Who Reads the Magazine?

Concrete Openings reaches cutting, polishing and imaging contractors as well as specifiers of these services, including engineers, architects, general contractors and governmental agencies. Why waste your message on unnecessary circulation?

Advertising in Concrete Openings guarantees a targeted audience of industry professionals.

READERSHIP BY PROFESSION

Target the Specialized Industry of Concrete Cutting, Polishing and Imaging Advertising in Concrete Openings magazine is the only way to reach the specialty market of cutting, polishing and imaging contractors who work with concrete, asphalt or masonry because it is specifically targeted to this segment of the industry.

How Do You Reach 19,000+ Concrete industry Professionals?

Each issue of Concrete Openings magazine is sent to more than 12,000 operators, equipment manufacturers and suppliers in the concrete cutting, polishing and imaging industry, and more than 7,000 specifiers of these services around the world.

Not a Subscriber?

Get your free subscription today!

Visit www.concreteopenings.com and click “subscribe.”

52%

Readership Per Issue A poll of Concrete Openings subscribers revealed that 66% pass on their copy of the magazine to at least one other person, with almost 25% stating that the magazine is passed on to four or more people each issue.

This translates to an average of four people reading each issue of the magazine for a total readership per year of approximately 60,000.

8% 40%

• Specifiers • Contractors • Manufacturers, Distributors

CSDA Social Media CSDA’s social media pages are packed with all the latest news, updates, photos and videos from the association and Concrete Openings magazine. Look out for exclusive content and become “friends” with others who are looking to network and promote the sawing and drilling industry. Join our growing fan base and stay in touch with the association through your PC, laptop or mobile device. Find direct links to these pages at www.csda.org.

Concrete Openings Website Concrete Openings has its own website.

Advertisers have direct links to their websites placed on our Advertisers page as a complimentary addition to ad placement.

A full page-turning copy of the magazine, including ads, is also available for visitors to read on the website. Visitors to the site can now access our advertisers at the touch of a button. The Concrete Openings website also has banner advertising opportunities available throughout the year.

Visit www.concreteopenings.com for more information.

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C O N C RET E O P EN I N G S | 6 1

Advertisers To receive additional information about products advertised in this issue, contact the vendors below.

PAGE

ADVERTISER

PHONE

EMAIL

30

Brokk, Inc.

877-276-5548

peter@brokkinc.com

53

Canadian Concrete Expo

226-363-0550

barb@exposition.com

Inside Front Cover, 55

Diamond Products

800-321-5336

jpalmer@diamondproducts.com

19

Diamond Vantage

949-428-2003

sunny@gtdiamond.com

16

Diaquip

44-161-40600609

harvey@diaquip.co.uk

41, 45

DITEQ Corporation

816-246-5515

jmiller@diteq.com

23

Dixie Diamond–Concut Group

678-296-3747

gwolters@dixiediamond.com

31

GelMaxx

619-701-7246

info@gelmaxx.net

11

Geophysical Survey Systems, Inc. (GSSI)

603-893-1109

harmonj@geophysical.com

Inside back cover

Hilti North America

918-872-3079

corrie.brock@hilti.com

32, 33, Outside back cover

Husqvarna Construction Products

913-928-1442

cate.stratemeier@husqvarna.com

2

ICS, Blount Inc.

800-321-1240

marketing@icsdiamondtools.com

21

K2 Diamond

310-539-6116

mike.nelson@k2diamond.com

15

Lissmac Corporation

518-326-9094

sales@lissmac_corporation.com

49

Merit Engineering & Equipment Company

928-771-0575

r.ferguson@meritsaws.com

53

New York Build Expo

315-636-4844

info@oliverkinross.com

63

Pentruder, distributed by ICS, Blount Inc.

800-321-1240

terry.martin@blount.com

5

SM Seahorse Co. Ltd.

86-186-16008022

ceo@sm-seahorse.com

39

Triple E Equipment

954-978-3440

aberg@eeeequipment.com

43

Vacuworx

918-259-3050

paulab@vacuworx.com

37

World of Concrete

727-577-5004

info@csda.org

22

Zircon

408-963-4550

tara.johnson@zircon.com

Cutter’s Corner EMPLOYMENT OPPORTUNITY— DIAMOND TOOL SALES CSDA member SM-SeaHorse Co., Ltd., has taken its first steps into the U.S. market and seeks a qualified agent to further penetrate U.S. diamond tool market. Headquartered in Shanghai, China with branches in Italy and Lebanon, SM-SeaHorse is a joint venture between European and Chinese technologists. Since 2010, the company has specialized in the field of diamond tools and exports from China to 50 countries around the world. All tools are made in China and Italy, with a full range of machines and components for the industry.

For more information about this position, email ceo@sm-seahorse.com or +86-186-1600-8022.

62call | DECEMBER.17

This classified section is for use by anyone who wants to sell or buy used equipment, post help wanted ads or advertise business opportunities. Anyone interested in placing ads should send copy to Concrete Openings Classifieds, 100 2nd Ave S, Ste 402N St. Petersburg, FL 33701. Copy can also be faxed to 727-577-5012 or emailed to rhitchen@concreteopenings.com. Cost: $100 for 10 lines for members; $200 for non-members. Additional lines $10 each. Copy must be in the CSDA office no later than the first day of the month preceding publication

One power source.

Many tools.

Get more done.

Pentpak 427

CW630 HF Chain Saw

3P8 HF Wire Saw

6-10 HF Wall Saw 8-20 HF Wall Saw

CBK HF Wall Saw

Visit us at World of Concrete January 22 - 26, 2018 Booth O31174

PARTS & SYSTEMS STOCKED IN ARIZONA FOR IMMEDIATE SHIPPING.

CALL TO ORDER 800.321.1240

icsdiamondtools.com © 2017 ICS | Blount Inc. Pricing and specifications subject to change without notice.

Director’s Dialogue

CSDA Earned $800k from World of Concrete

PATRICK O’BRIEN Executive Director

D

id I get your attention? This amount represents the total rebates CSDA has received since 1977 as a cosponsor of the World of Concrete trade show. Much hard work went into this historical achievement going back 40 years.

CSDA is one of 18 cosponsor associations who help promote attendance at the annual show. In exchange for these efforts, show management distributes rebates based upon how successful the cosponsor associations are in registering attendees. CSDA staff conduct very aggressive marketing campaigns to register attendees using CSDA’s A26 code and have been achieving record rebates the past few years. This year, CSDA received the highest rebate ever, at $53,000.

But it wasn’t always this way! In the first 15 years of the show, CSDA rebates typically ranged from $4,000-8,000 per year.

Since the mid-1990s the growth has been along the lines of the disruptive exponential growth championed by business consultant Peter Diamandis. Peter is the Founder of the X-Prize for the first commercial venture into space. He is famous for challenging companies to shoot for 10X growth instead of settling for small annual linear growth.

64 | DECEMBER.17

So congrats to CSDA for this significant accomplishment. But it means much more than the record rebates. CSDA uses these funds to support member programs in areas like safety and training as well as how to respond to challenges like the new OSHA Silica Rule. CSDA is working with 25 construction associations in the Construction Industry Safety Coalition. This level of cooperation is unprecedented in the industry. Not only do these efforts benefit CSDA members, they allow the association to help advance the development of the industry for the benefit of all involved.

World of Concrete 2018 will be my 35th annual show. My historical perspective is that many things have changed and CSDA has made great strides. But what will the future look like?

That will be determined by the next generation who can take what has been accomplished, adapt to the changing environment and create an even better future for the association and the industry. Join CSDA in Las Vegas in January 2018 to see how you can be part of this future.

Thanks, and I look forward to seeing you at World of Concrete.

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Up to one full day of water autonomy and a clean jobsite during diamond coring applications.

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Easily disposable filter bags. Compatible with all Hilti diamond drilling machines.

1-800-879-8000 www.hilti.com • www.hilti.ca

BC • 10/17

Find out more: www.hilti.com

ARE YOU READY TO MAKE AN ENTRANCE? WITH THE PERFECT PARING OF BLADE AND SAW. The Husqvarna WS 482 HF wall saw transmits an impressive 25 hp (19kW) to the bladeshaft and can handle 63" (1600 mm) blades. It is one tough wall saw that can handle anything. Use the wall saw with one of our advanced wall saw blades ensuring top performance. Demonstrations available nationwide.

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WWW.HUSQVARNACP.COM/US/CONTACT-US/ facebook.com/husqvarnaconstruction youtube.com/husqvarnaCP HusqvarnaCP_Americas 17400 West 119th Street • Olathe,www.husqvarnacp.com Kansas 66061 • T 800-288-5040 • F 800-825-0028 • www.husqvarnacp.com • www.husqvarnacp.ca 2077 Bond Street • North Bay, Ontario P1B 4V6 • T 800-461-9589 • F 800-825-0028 • www.husqvarnacp.ca Copyright © 2017 Husqvarna AB (publ.). All rights reserved. Husqvarna is a registered trademark of Husqvarna AB (publ.).

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