March 2018

MARCH 2018

Massive Wire Sawing Project at Hydroelectric Dam Joint Effort for Two CSDA Contractors

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President’s Page

JACK SONDERGARD CSDA President

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any of you reading this magazine attended World of Concrete 2018. As always, it is an amazing gathering of industry professionals and vendors. Those in attendance had the opportunity to view the latest in technology from products to equipment. Attendance was the highest it has been in 9 years and CSDA booth traffic was also quite brisk! CSDA also provided industry specific training classes at this year’s show and 18 students attended the two-day CSDA Estimating class, the GPR Certification class drew eight students and 20 students completed the Concrete Polishing class. I also want to extend my congratulations to the four companies who won the Concrete Openings Awards 2017 Project of the Year. I was excited to be one of the judges for the competition. We had many amazing job stories to choose from. No matter how long I am in this industry, 40 years now this year, I continue to be impressed with the creativity and skill of my fellow concrete cutters. You can read about the winners later in this issue in the WOC wrap-up. Several other issues are important to all of us as we head in to 2018. Safety always has been a top priority for my company and certainly for the CSDA. I have served on the Safety Committee for years. I volunteered for this position because of my personal and professional commitment to providing the safest work environment possible for my employees. I believe a strong foundation for a safe work environment is proper training of employees. In our industry, every jobsite and every project is unique but, there are basic safe practices that everyone must adhere to across jobsites. In addition, proper PPE is a must. CSDA continues to provide many opportunities

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for professional training. The training schedule will be finalized soon and available on our website so make safety training a top priority. In October, OSHA began enforcing the new silica rule. This has caused considerable angst for many a contractor. However, compliance is in our employees’ best interest. The CSDA’s Best Practice for wet cutting (CSDA-BP-001) dramatically decreases the silica exposure our employees face. Technology assists in the proper gathering of data to prove the silica exposure on various concrete sawing and drilling services. CSDA is working to collect data to show compliance with the standard for our various operations. Again, involvement with others in our industry at CSDA quarterly meetings and committee work helps contractors to gain a good understanding of the new OSHA requirements and how to best meet these standards. In addition, Company Certification should be a priority for CSDA members. Company Certification shows that a member is invested in his or her company. It shows that the training of employees is important. It shows that members want to possess skills that set them apart from the competition. CSDA members who are on the Board, Officers or those of us who are already are Certified Companies will be happy to help you with the application. Just give us a call. Last, I want to invite anyone who is not a member of CSDA to join. Go to our website, www.csda.org to check us out. Call our Board Members to discuss the benefits they receive from being members. Attend a quarterly meeting or the annual convention. I promise you, any time you invest in CSDA will return to you multiplied.

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

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CONCRETE CASES

President, Jack Sondergard Central Concrete Cutting, Inc. jacksondergard@sprynet.com

Kwik Turnaround Time for Kwikcore at the Georgia Dome

Vice President, Matthew Finnigan National Concrete Cutting Inc. matthewf@nationalconcretecuttinginc.com 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

Massive Wire Sawing Project at Hydroelectric Dam Joint Effort for Two CSDA Contractors

16

More Than X-Rays Needed on Kansas City Medical Center Renovation

Kevin Schmitt Husqvarna Construction Products kevin.schmitt@husqvarna.com 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 Jami Harmon GSSI harmonj@geophysical.com Jessica Ledger-Kalen Royale Concrete jlk@royaleconcrete.com Doug Walker Concrete Cutting Consultants, LLC dwalker@cretecutter.com

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pecialized Core Drilling System S Gets the Job Done

GPR Services Used to Map Out Electrical Conduits Prior to Plumbing Planning

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A Whale of a Job Completed By Joint Effort in New Zealand

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CONCRETE OPENINGS MAGAZINE Official Magazine of the Concrete Sawing & Drilling Association Volume 27, Number 1 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 12

Concrete Openings Awards

22

Safety Counts

32

WOC Wrapup

38

Tech Talk

Concrete Cutters Celebrated at Las Vegas Awards Ceremony

OSHA Liability 2018: Deja Vu All Over Again

Optimism Returns to World of Concrete

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.

Hydrodemolition

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Core Health Too Sick to Work?

PUBLISHER Patrick O’Brien CONCRETE CASE CONTRIBUTORS Tim Beckman Mark DeSchepper David Gallagher Mike Orzechowski EDITORIAL REVIEW COMMITTEE Ted Johnston Pat Stepanski Doug Walker 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.

42

The Business of Business

44

Industry Bits

Six Tips for Attracting Millennial Workers to the Construction Industry

52 Certification 54 Membership 56 Calendar 60 Director’s Dialogue

32 Cover: Aerial view of the Red Rock Hydroelectric Dam

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Concrete Cases

Kwik Turnaround Time for Kwikcore at the

Georgia Dome

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Aerial shot showing concrete ring and close proximity to adjacent structures.

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hen the Georgia Dome opened in 1992 at a cost of $214 million, at the time, it was one of the largest state-funded construction projects in Georgia history. The stadium seated 71,228 for football, approximately 80,000 for concerts and 71,000 for basketball when its retractable dome was fully open. The Georgia Dome was designed with a half-mile long concrete ring beam that wrapped around the roofline, a one-of-a kind structure at the time. When it made its debut, it was the second-largest covered stadium in the world by capacity, second only to the Pontiac Silverdome. In its 25 year lifespan, it hosted over 1400 events that were attended by over 37 million people.

However, nothing lasts forever, especially in professional football. In 2010, plans for a new stadium just south of the Georgia Dome were announced with ground breaking and construction scheduled to commence in 2014. The most obvious challenge for the demolition of the old Dome was that it sat sandwiched between Atlanta’s major convention center and the new $1.5 Mercedes-Benz Stadium—just 83 feet away! Demolition experts said that a single implosion would be the best method to take the Dome down, with explosive charges placed in the ring as well as the support columns, all timed to cripple the ring beam and the columns. The pressure created by the implosion would have to rise into the roof and not out through the sides. The explosives had to be perfectly timed so as not to damage the adjacent structures.

Opposite page: Kwikcore/Brokk drilling system being lifted to the concrete ring.

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Concrete Cases

continued

Kwikcore’s anchorless drilling system is operated remotely.

Incredibly, 66-inch-long cores came out in one piece.

The Kwikcore drill allowed for faster drilling of holes.

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Construction felt was placed over four corners of the Dome and a 70-foot-tall fence covered with the same felt was erected between Mercedes-Benz Stadium and the Dome. In addition, to make sure that the roof fell in place during the implosion, parts of the concrete ring that supported the roof were chipped away and ventilation holes were cut into the roof. Pettigrew Construction, the general contractor, needed the service of a specialized core driller with precision drilling experience, and as it turned out, customized equipment, to core 1850 holes for the explosives that would take down the Dome. Pettigrew hired CSDA-member Exco who pioneered the development of the

Kwikcore drilling system. The anchorless, remote-controlled core drill attachment is able to turn a core drill into a marvelous machine, able to drill 4 holes in one hour compared to four holes in a day. Diamond drilling was chosen over the more commonly used carbide drilling as there was a large quantity of rebar present in the concrete and using carbide drills would have slowed the drilling process significantly. The time to core these holes kept getting pushed closer and closer to the target date of implosion, as other construction delays were slowing the project. Originally scheduled for the summer of 2017, the coring actually took place over a four-week period during the fall of 2017, quite close to the actual implosion date of November 17, 2017. So the need to get holes drilled quickly became a critical part of the job. Another concern for Exco was that these holes ranged in diameter from 1 5/8 inches to 2 1/4 inches but measured 10 inches to 66 inches

in depth, a vast difference. Kwikcore was able to custom fabricate a frame to allow the drill to core to a depth of 66 inches. Also custom fabricated were the core bits themselves. The steel core was custom made by Western Saw, with Diteq Corporation diamond segments. These core bits ensured that many of the 66-inch-cores bits came out in one piece due to the structural soundness and the precision drilling of the Kwikcore core drill set-up and the custom diamond drill bits. This is very hard to do as long cores will typically jam inside of a small-diameter bit. Rounding out the custom-fabricated system were core drills provided by Shibuya and the entire set up was powered by a Brokk 160. Along with the time constraints and the deep holes, another major factor that complicated this job was the fact that the slab was super hard 10,000 psi granite aggregate with 3-inch steel rebar

The Brokk 160 at work at the Georgia Dome.

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C O N C R ET E O PEN I N G S | 9

Concrete Cases

continued

Skyline view of the Georgia Dome implosion.

on 45 degree diagonals. Operators also encountered some rubber membrane in various areas of the concrete ring. The general contractor was amazed at the integrity of the drill pattern to the required depth of 66 inches and remarked on more than one occasion that the anchorless, remote controlled core drill was the perfect piece of equipment for this job. All in all, Kwikcore core drilled the 1,850 holes, 900 precision holes and 950 additional holes into the concrete ring and additional concrete walls in just two weeks. These holes were drilled by two operators using the Kwikcore K16 and K34 attached to a Brokk 160 which served as the core drill system. The general contractor was very satisfied with the job done by Exco and Kwikcore given the time constraints, super hard aggregate and depth of the holes. This job was a perfect fit for the automated, anchorless Kwikcore/Brokk customized core drill system. REVIEW AND COMMENT ON THIS ARTICLE AT: WWW.CONCRETEOPENINGS.COM

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COMPANY PROFILE EXCO/Kwikcore has been a member of CSDA since 2012 and is based in Bensalem, Pennsylvania, servicing the entire Tri-State area. The company was founded in 2007, has six employees and three trucks. A primary focus has been the development of the Kwikcore Anchorless Coring System which is distributed by DITEQ Corporation.

RESOURCES Sawing and Drilling Contractor EXCO/Kwikcore Bensalem, Pennsylvania Tel: 855-945-2673 Email: fengel@excokwikcore.com Website: www.excokwikcore.com

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Awards

Concrete Cutters Celebrated at Las Vegas Awards Ceremony

The 5th Annual Concrete Openings Awards ceremony was held during January’s World of Concrete international trade show and exhibition at the Las Vegas Convention Center. The awards recognize some of the most innovative and challenging projects completed by CSDA contractors in 2017. A crowd of show attendees and members of the industry media gathered around the association’s exhibit booth as CSDA Executive Director Patrick O’Brien led the proceedings. First held at World of Concrete 2013, the ceremony showcases best projects covered in CSDA’s official magazine as chosen by a panel of judges, and acknowledges the concrete cutting, polishing, GPR imaging or selective demolition contractors who performed the work.

Job stories featured in the magazine’s four quarterly issues from 2017 were split into four categories and put before the panel. Judges scored each job based on: • Pre-planning • Use of innovation • Degree of difficulty • Quality requirements The project with the highest score in each category was declared the winner. Display boards of the winning projects were featured at the CSDA exhibit booth during the four-day World of Concrete exhibition, and a special commemorative book was produced for the winners and those in attendance. During the ceremony, O’Brien thanked all the contractors who submitted their projects for publication and congratulated the winning companies. These winning projects are just some of the complex, painstaking jobs being done by CSDA contractors everyday on jobsites around the U.S. and beyond. The association encourages all concrete cutting, breaking, polishing and imaging members to submit their best job stories for publication in Concrete Openings, and to consider entry to this year’s awards. Look out for more information about the Concrete Openings 2018 Awards later in the year. For more information about the winning projects, the awards or about CSDA, call 727-577-5004 or email erin@csda.org.

And the winners are….

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Company: Location: Category:

Royale Concrete Fairfield, Iowa Building Construction

Company: Location: Category:

Concrete Cutting Systems Philadelphia, Pennsylvania Industrial Renovation

Roosevelt High School Auditorium Project

Baxter Water Treatment Plant Project

• Polishing contractor prepped and honed the 6,600-squarefoot sloped floor of a 92-year-old auditorium in Des Moines, Iowa.

• CSDA member created 12 large 42-inch-diameter openings through a concrete wall that tapered out from 28 to 36 inches thick at marked locations in the plant’s underground water storage basins.

• The pitch of the floor, around 2 inches over 1 foot in some areas, meant that the grinders, which each weighed in excess of 900 pounds, struggled to keep course with the slope.

• Due to limited access through a 3-foot-wide hatch door, the contractor devised a plan to create 12 cylindrical openings spaced 15 feet apart without the use of diamond core bits.

• Adding to the challenge were over 300 closely-spaced degraded vent holes in the auditorium floor measuring 12 inches by 6 inches, many of which had to be repaired.

• Circular wire sawing techniques were employed, using hydraulic actuated rotation to perform push cuts through a full 360-degree rotation.

• Grinding and honing techniques were used to bring the floor to a 400-grit finish. All repair and restoration work was completed in 400 man hours.

• Each 42-inch-diameter circular cut was completed in 1.75 hours, including setup and takedown time, creating a 4,400-pound concrete core that was rigged and removed via the roof hatch.

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

Concrete Openings Awards

Company: Location: Category:

continued

Westcoast Cutting & Coring Group New Westminster, British Columbia, Canada Infrastructure Renovation

Ruskin Dam Seismic Reinforcement Project

Company: Location: Category:

Matcon Diamond, Inc. Pittsburgh, Pennsylvania Roads, Bridges & Airports

Hulton Bridge Design Repair Project

• Aging 360.9-foot-wide concrete gravity dam structure located in British Columbia, Canada, was in need of upgrades and reinforcement to prevent critical failure in the event of an earthquake.

• New 1,600-foot-long steel bridge structure had been open to traffic for several months before an oversight was identified that needed immediate attention.

• Over 20 million pounds cut and removed above and below water, 5,000 holes cored to depths up to 39.4 feet, 7,500 square feet of surface scarified—completed in phases over a three-year period.

• Within one of the diaphragm sections, lengths of a 12-inchdiameter gas main were encased in reinforced concrete and passed through steel beams. The gas main had to have at least 6 inches of clearance around it for inspections, repairs and for the expansion and contraction of the concrete during seasonal changes in temperature.

• Majority of the work was done on the 60-degree sloped face of the dam spillway, where the general contractor specified a 1-inch tolerance for the form work. • One of the four piers removed was poured against the rock face. With no access to the backside of the pier, the contractor made a grid pattern of 39.4 foot intersecting core holes to allow sections to be cut free with a wire saw. This was 509 holes totaling 5,088 feet of core drilling.

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• Contractor devised a plan to wire saw and create a 24-inch by 24-inch box around the gas main—perpendicularly penetrating through the beam. • Four 0.625-inch-diameter holes were core drilled 42 inches deep at corner locations around the pipe for wire access, then a series of pull cuts 24 inches long and 42 inches deep were made from the backside of the diaphragm section to the front. Each pull cut took around four hours to complete.

Concrete Cases

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Massive Wire Sawing Project at Hydroelectric Dam Joint Effort for Two CSDA Contractors

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he Red Rock Hydroelectric Project is a massive project, started in 2014 with completion set for 2019, that will help supply energy to meet the ever growing needs of the customers served by the Missouri River Energy Services (MRES) along the Des Moines River. This new hydroelectric facility is being completed at the existing Red Rock Dam on the river about two and a half miles southwest of Pella, Iowa. When the project is completed, the Red Rock Hydroelectric Project (RRHP) will be the second largest hydroelectric generating facility in the state of Iowa and a significant addition to renewable energy. It will supply energy to nearly 18,000 homes.

For the first 18 months of the project, crews from the general contractor, Ames Construction, performed the civil and underground work at Red Rock Dam prior to the start of the retrofitting work. This initial construction, which started in August 2014, included earthwork, rock excavation and concrete pours for soil stabilization. In February 2016, the project’s focus shifted to construction of the powerhouse. The powerhouse encases the generators, rotor shafts and turbine blades as well as the powerhouse controls. The turbine blades are attached to the generators by the vertical shafts and are rotated by water flowing from the intake structure, through the penstocks (21-foot-diameter pipelines), into the spiral case and finally through the wicket gates, spinning the turbine blades and returning to the river via the draft tube. The wicket gates act as a throttle to control the speed of the rotors. Installation of the owner-furnished turbine assemblies has also begun.

This aerial view of the RRHP shows work downstream, including the new powerhouse.

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C O N C RET E O P EN I N G S | 1 7

Two 21-foot-diameter penstock pipes will connect the powerhouse structure to the intake structure on the reservoir side of the dam. The steel penstock liner will be embedded in concrete and feed the powerhouse with 14,000 cubic feet of water—equivalent to 2,456 standard bathtubs full—per second. Two CSDA contractors, Cutting Edge Services and Advanced Concrete Sawing joined forces in 2015 and were awarded the three year job at Red Rock Dam to drill and wire saw several large openings as needed to run lake water into the new intake structure and through the two 2 new penstocks into the new powerhouse below the dam. This is quite a massive undertaking and will continue into 2019. Included in this job are six openings measuring 28 feet wide by 40-80 feet-tall through 5-foot-diameter secant wall and four initial cavities cut into the downstream and upstream faces of the dam, each 28 feet square by 8 feet deep. A pair of 25-foot octagonal passageways through the center core of the dam, each 25 feet deep, make up the final phase of the project. The diagram of the project shows the three main pieces of the drilling and sawing work through the dam. Step 1 (diagram) shows the downstream cavity work in the dam core. Step 2 (diagram) shows the upstream cavity work in the dam core. Step 3 (diagram) shows the final cuts in the dam core including the octagonal passageways. This photo shows the secant piles and temporary steel holding back the lake.

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Most of drilling for the wire holes is being done with Husqvarna hi-cycle drills while the wire sawing is being done with a pair of Diamond Products WS 50 hi-cycle wire saws. In 2016, the two contractors completed initial wire cuts and blade cuts to allow for the construction of the intake structure. In 2017, the 28-foot-wide by 60-foot-high opening through the Unit 1 secant wall at the Power House and the initial cavity into the downstream face of the dam were completed. And now in 2018, Cutting Edge and Advanced Concrete Sawing will complete a majority of the work, leaving the 25-foot octagon passages for 2019. There have been interesting constraints along the way on this project. To begin with, the difficulty was making large cuts in steps and working around heavy shoring as needed to preserve integrity of the dam. In addition, a future challenge will be underwater cutting the secants holding back the lake, after the intake structure is completed. “This was one of the most extensive projects that I have ever undertaken,” said Tim Beckman, President of Cutting Edge Services, “and required the collaboration of my colleague Bennett Jones of Advanced Concrete Sawing.” “Ames Construction selected us because of our innovative techniques and our flexibility of working with the precision steps needed to protect the Above: Operators core drilling 8-inch-diameter holes into the face of the dam. Below: 15-milimeter wire was pushed into the holes and then smaller diameter wire was used to make the vertical back cuts.

Looking downstream into the Unit 1 penstock.

dam,” he added. “In addition, this project has and will continue to require a very large resource base that only our two companies together were able to provide,” said Bennett Jones, President of Advanced Concrete Sawing. As CSDA contractors win contracts for more and more massive infrastructure projects, like this one, undertaken over multiple years, it shows the value of collaboration between contractors in the sawing and drilling industry and strengthens the notion that CSDA can help provide

many of the opportunities for contractors to meet their colleagues and form lasting friendships and professional unions to win contracts of this scope. When this job is completed, 18,000 homes will have electricity provided by a facility that was retrofitted, in no small part, due to the work provided by two sawing and drilling contractors. REVIEW AND COMMENT ON THIS ARTICLE AT: WWW.CONCRETEOPENINGS.COM

COMPANY PROFILE Cutting Edge Services was founded in 1997 and is headquartered in Batavia, Ohio. Owner Tim Beckman helped pioneer a construction wire sawing business in Chicago in 1983 after borrowing his first wire saw from a Knoxville, Tennessee quarry operation. Cutting Edge mobilizes operators and specialized equipment worldwide providing services in diamond wire cutting, drilling and precision removal. Also offered are robotic demolition, hydraulic splitting and diamond blade sawing. Just one of the infrastructure markets served is the hydroelectric/locks and dams market like Red Rock.

RESOURCES General Contractor Ames Construction Burnsville, Minnesota Business Development Officer: David Gatto davidgatto@amesco.com Specialty Contractor Cutting Edge Services Inc. Batavia, OH Tel: 513-388-0199 Email: Beckman@cuttingedgeservices.com www.cuttingedgeservices.com

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Advanced Concrete Sawing, headquartered in St. Paul, Minnesota was started by Bennett Jones 18 years ago and services five states in the Upper Midwest. Advanced specializes in flat sawing, core drilling, slab sawing, wall sawing, wire sawing and curb cutting. In addition, robotic demolition, slurry removal and GPR scanning are provided. Advanced Concrete employs 20 operators and runs 16 trucks. Advanced Concrete Sawing St. Paul, Minnesota Tel: 651-633-8499 Email: bennett@acsawing.com www.advancedconcretecuttingsawing.com

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Safety Counts

OSHA Liability 2018: Deja Vu All Over Again By Mark A. Lies II

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s 2018 kicks off, it is important to look back at what occurred in 2017 and hopefully learn from events because, as human beings, if we do not learn from history, we are doomed to repeat it, in this case, with tragic results. The Romans understood this because they had a mythical god, Janus, who had two heads, one looking backward to the past and one to the future. The month of January is named after him and was supposed to be a time to reflect on the prior year’s experiences and hopefully avoid similar events in the coming year. OSHA ENFORCEMENT IN 2017 In 2017, OSHA essentially continued to operate as it had during the Obama Administration since there was no Assistant Secretary of Labor for OSHA appointed and approved by Congress to replace Dr. David Michaels. As a result, the career OSHA bureaucrats continued to operate as they had in the past. For those employers with nationwide operations, it was very common to see in 2017 that the OSHA regulations were being enforced unevenly or inconsistently from one region to another because there was a lack of central direction from Washington. This inconsistency was further complicated by the fact that OSHA has experienced significant numbers of retirements of career Baby Boomers at the Area and Regional Office levels, as well as in the Solicitor’s office which prosecutes the citations at trial. This inconsistency is also evident within the State Plan OSHA Programs. An employer can expect to be treated with very different interpretations of the underlying Federal OSHA regulations depending on whether it is cited, for example, in Indiana, Michigan, Minnesota, Nevada, Washington and other states. Often times, the State Plan regulations do not recognize Federal interpretations of Federal regulations or case law from the OSHA Review Commission or Federal courts, creating further uncertainty.

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2017 OSHA EXPERIENCE The following discusses pitfalls in 2018 based upon 2017 occurrences: OSHA Inspections Failure to become aware of the rights of OSHA, the employer and employees during inspections. Many employers lack basic understanding of the process, especially in the area of OSHA employee interviews which are the source of 60-70% of citations. Employers never inform their employees of these rights and do not prepare employees for the interviews or consider “debriefing” them after the interviews. Attached to this is a summary of those rights. Many employers do not know what documents they are required to maintain and produce for OSHA. A summary of those documents is attached. PARTICULAR HAZARDS Some of the more frequent hazards encountered in 2017 included: Lockout Tagout (LOTO)/Machine Guarding Employers are required to have a written LOTO procedure for each piece of equipment. In 2017, many employers were found to be lacking these procedures, they were not current as to the correct procedure or employees were never trained how to use them. Other employers did not conduct the annual periodic inspections. Regarding machine guarding, many employers failed to conduct a job hazard assessment to identify whether guarding was necessary or adequate

or, worse, failure to enforce keeping guards in place. As a result, there were many fatalities and amputation type injuries. Powered Industrial Trucks (PITS) Employers cannot allow employees to operate PITS unless and until they have been trained, authorized and certified with supporting documentation. Employees must also be recertified every three years and retrained after an accident or near miss. Employers were cited for failure to train the PITS operators or to enforce the safe operation of the equipment. In addition, many employers allowed outside contractors or temporary employers to operate the equipment without training. PITS accidents typically result in serious injury or death. Personal Protective Equipment (PPE) Employers are required to conduct a hazard assessment to identify hazards which require PPE (gloves, eye protection, foot protection, etc.), to certify the assessment and certify that the PPE was provided. In addition, employers must enforce the use of PPE. Many employees sustained serious injury because PPE was never provided or required to be used. Fall Protection Employers are required to protect employees against the hazard of a fall. OSHA has extensive regulations requiring the use of fall protection (guardrails, safety nets or personal fall protection) when employees perform elevated work. This year saw many

tragic accidents where employees fell off of roofs, mobile equipment, interior structures, truck trailers, towers and other elevated equipment. Hazardous Substances Employers must provide Hazard Communication training to employees working with hazardous substances and document such training. There are also requirements for labeling. The failure to provide this training has resulted in employee exposure to hazardous chemicals or other substances that may be in the worksite. Multi-Employer Worksites Another liability involved multi-employer worksites where there are a number of employers at the same worksite. Each employer has OSHA duties to other employer’s employees at the site depending on whether the employer is one of the following: • Employer who creates the hazard • Employer who exposes the employee to the hazard • Employer who is responsible to correct the hazard • Employer who has control over theworksite 7,313x4,625_floor or a particular hazardsaw_MC600_2.pdf 1 21.12.2016

CONSTRUCTION TECHNOLOGY

Many employers are totally unaware of these liabilities and fail to take appropriate action to protect other employees, including: • Independent contractor employees • Temporary staffing employees OSHA INFORMAL CONFERENCES Many employers fail to adequately prepare for the OSHA informal conference after citations are issued. Unfortunately, many let the typical fifteen (15) working day period (State Plan program time periods may vary) to attend a conference or file a written contest to the citation and it becomes a final court order. In other instances, employers do not adequately prepare for the conference to assert their factual and legal defenses and when they attend they cannot articulate the defenses. Worse yet, many attend and make “admissions” of liability which support the violation. Many employers are unaware that every citation which is accepted creates a five year period during which any subsequent violation during that period which is “substantially similar” can result in a repeat citation with significant penalties. In so doing, they accept 11:13:51 citations which should have been contested

for expediency and have no conception of the potential legal minefield that may be created in the next five years. CONCLUSION Hopefully, we all can learn from our own unfortunate experiences or those of others in 2017 to avoid repeating errors which result in accidents or regulatory liability in order to avoid these liabilities in 2018. If you have any questions about these issues, please do not hesitate to contact the undersigned. We hope you all have a safe and healthy New Year. NOTE: If you wish to receive complimentary copies of this article and future articles on OSHA and employment law related topics, please contact Mark A. Lies, II at mlies@seyfarth.com to be added to the address list. Mark A. Lies, II is an attorney in the Environmental, Safety and Toxic Tort Group in the Chicago office of Seyfarth Shaw LLP. He is a partner who focuses his practice in the areas of products liability, occupational safety and health, workplace violence, construction litigation and related employment litigation. Lies has contributed many articles to Concrete Openings and can be contacted at mlies@ seyfarth.com or 312-460-5877.

PROFESSIONAL CUTTING

C

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CM

MY

CY

CMY

K

LISSMAC Corporation 356 Hudson River Road, Waterford, NY Phone +1 518 326 9094 , sales@lissmac-corporation.com

www.lissmac-usa.com W WW. C O N C RE TE OPE N IN GS.COM

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Concrete Cases

Operator using GSSI SIR 3000 with a 1600 Mhz antenna looking for near surface conduits prior to saw cutting.

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More Than X-Rays Needed on Kansas City Medical Center Renovation

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ew plumbing lines were part of a medical center remodeling project recently completed in Kansas City and CSDA member Echo GPR Services was only too happy to supply ground penetrating radar services to detail for the concrete cutting contractor exactly what lay beneath the concrete floor. It was imperative for the general contractor and subcontractor to know if there was electrical conduit under the slab.

As is the case in many health care renovations, this project would be completed in an area of the hospital adjacent to active hospital operations and could not interfere with the delivery of medical services. The Emergency Room and other procedure rooms were in close proximity to the construction area and not only would they be in continuous operation, it was determined that conduits under the slab likely fed power to these crucial areas of the hospital. CSDA member Echo GPR Services was contacted to map out all of the electrical conduits prior to saw cutting the floor. An entire room, measuring 80 feet by 35 feet, needed to be mapped out. Until the client knew where the electrical conduit was, they would not be able to determine exactly how to plan the new plumbing.

The layout of conduits are shown in red and plumbing are shown in green under the slab.

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Concrete Cases

continued

The saw cutting layout is marked in yellow for the operators.

After Echo located the electrical conduits they questioned the client about the manner in which the new sewer lines would be connected to old sewer lines and found that the client did not know, so Echo was able to use a different GPR antenna to map out the below grade sewer lines, providing an additional service to the client. They were also able to provide the contractor the depths to the targets. Echo employed one operator scanning the floor using a GSSI SIR-3000 machine with a 1600 Mhz antenna to locate near surface conduits. In addition, a 400 Mhz antenna was used to map out the deeper plumbing lines. Because of the accuracy of the GPR mapping, Echo was called out a second time to map additional conduits prior to saw cutting. Once they supplied the client with the findings, the cutting plan was revised to entirely avoid some conduits, thus saving the cutting contractor time and money. Scanning mark-outs were in accordance with CSDA BP-017 and made the layout easy for the saw cutting contractor to avoid cutting any conduits. The cutting contractor was able to perform all of the cutting without incident and was able to plan where they needed to make the connections to existing plumbing. This job proves that sometimes an X-ray just might not be good enough.

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

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COMPANY PROFILE Founded by CSDA Past President Rick Norland and CSDA training instructor Mark DeSchepper in 1999 as Construction Solutions and renamed Echo GPR Services in 2017, Echo provides ground penetrating radar services to contractors, governmental agencies, engineering firms and private industry. Echo is headquartered in Paola, Kansas.

RESOURCES General Contractor Rand Construction Kansas City, Missouri GPR Contractor Echo GPR Services Tel: 913-879-2200 Mobile: 913-710-9923 www.echogpr.com

Who is eligible for Certification? A company must meet the following criteria to achieve certification: CSDA's Company Certification Program is a company audit program specifically for sawing and drilling contractors. Developed by CSDA's Certification Committee, the program provides owners, architects, engineers, general contractors and government officials with a valuable prequalification tool, improves the knowledge and skills of cutting contractors and enhances their public image.

• 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 What are the benefits of becoming a Certified Company? CSDA Certified Companies are marketed and promoted to specifiers in the concrete renovation industry, including architects, engineers, general contractors and government agencies. Your Certification is a valuable prequalification tool that sets you apart from the competition and in many cases, also fulfills other job certification requirements. Who decides if my application is accepted?

For more information on benefits and requirements, visit us at www.csda.org

CSDA uses an independent third-party law firm to conduct reviews and audits of submitted application. The information provided on your application is confidential and is not shared with CSDA or any of its members. CSDA only receives notification when an application has been approved.

727- 577-5004 www.CSDA.org info@CSDA.org

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diamondvantage.com 866.322.4078

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

Work Harder or Hard Workwork Smarter? or smart work

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IACDS President’s Insight

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t’s that time of year again when we start to look ahead to the next 12 months – and I wonder how businesses across the world are feeling as we head into 2018? There is still a huge amount of political and economic uncertainty across Europe and while that never helps business, I don’t think it has affected our company yet and I hope it hasn’t affected yours. The outcome of Brexit, which continues to dominate the news in the UK, is still far from clear but I am sure businesses will find a way to trade and deal with one another. And I think what’s important at a time like this is for companies in our sector to stick together. Participating in the IACDS is a great way to do this There are two key issues that I am contemplating at the start of 2018. The first is a global issue. Should we look at the possibility of a worldwide professional card that would cover professionals in the concrete and drilling sawing industry? Since we have moved to establish international standards in our industry, is a worldwide card not far behind? I know this would be a long-term project and we would need to find a way to make this work for all of the associations around the world who currently operate different systems, but perhaps it is worth being on the leading edge of such a movement. The second issue hits closer to home for many of us and it is an issue that doesn’t always get discussed--the rental of concrete drilling and sawing machinery. The rental issue causes tension between the professionals who are involved in our sector and the ad-hoc users who rent the machinery. But I don’t think the rental of sawing and drilling

@diteqcorporation W WW. C O N C RE TE OPE N IN GS.COM

JULIE WHITE IACDS President

machinery is going to go away. This is an issue that the IACDS can help to address and I would definitely like further discussion. I am looking forward to seeing you at the 2018 IACDS Annual Meeting which returns to Tokyo, Japan for the first time in 18 years. The May 21 to 23 event is a great opportunity to combine work and also relax in an international capital with our colleagues and friends from around the world. I may see many of you before then, but if not, be sure to come and say konnichiwa when I see you in Tokyo!

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BORN AN ICON

THE NEW HUSQVARNA K 770 Progressive by nature. Proven by heritage.

WHY CHOOSE THE NEW HUSQVARNA K 770 POWER CUTTER? Becuase it won’t disappoint. It has been built with decades of global experience behind it and hundreds of thousands of Husqvarna power cutter users’ input from around the globe. This power cutter delivers on all the proven qualities and features you’ve come to appreciate in its forerunners and added new, carefully selected features and improvements to make operating your K 770 an even better experience. Progress and heritage - that’s our tradition and that’s why we will continue to bring iconic power cutters to you, for many years to come. To try one out for yourself, demonstrations are available nationwide.

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HIGHLIGHTS DIGITAL IGNITION WITH OPTIMIZED TIMING

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A SMARTER WAY TO KEEP THE DRIVE BELT TENSIONED

The digital ignition module is updated to provide a powerful spark with optimized timing, enabling an easy start and efficient combustion.

The newly designed magnesium cast crankcase has a three-bolt joint to attach the cutting head, enabling higher torsional rigidity than the previous two-bolt solution.

The spring-loaded, semi-automatic SmartTension™ system ensures that the drive belt is always kept in the correct tension. This allows for optimal power transmission as well as minimum wear and maximum life of the belt.

COOLER TRANSMISSION The clutch cooling fan lowers the operating temperature inside the belt cover, extending the service life for the transmission components, inluding the drive belt.

www.husqvarnacp.com/us - www.husqvarnacp.com/ca-en hcpcustomer.service@husqvarna.com

Phone: 800-288-5040

Copyright Š 2018 Husqvarna AB (publ). All rights reserved. Husqvarna and other product and feature marks are trademarks of the Husqvarna Group as displayed at www.international.husqvarna.com We reserve the right to make changes in technology and specifications without prior notice.

Vacuworx

Briggs & Stratton

ICS

Optimism Returns to World of Concrete The World of Concrete (WOC) in Las Vegas exceeded expectations across the board with an attendance of over 58,000 professionals. The 2018 show was the largest WOC in nine years and included nearly 1,600 exhibitors spread over 747,000 square feet of exhibit space. More important than the numbers, however, was the unmistakable fact that business optimism is back with a bang. The prior nine years featured good shows and moderate activity, but in 2018 contractors were buying and manufacturers were selling. It was great to feel the excitement and a sense of optimism return. Contractors frequently mentioned that they needed to buy this piece of equipment or that piece of equipment because they knew multiple jobs were ready to launch in 2018. Manufacturers reported that show sales exceeded expectations with contractors ready and willing to make purchases. “This has been an incredible year—the success of World of Concrete 2018 helps solidify WOC as the only annual event for concrete and masonry professionals. Having our largest event in nine years proves that the construction sector is going strong worldwide. Participants, both domestic and international, experienced the very best the industry has to offer in terms of suppliers, products, services and education, and we look forward to an even larger event at WOC 2019,” said Jackie James, group director of WOC.

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In addition to optimism at the show, there was also innovation, as evidenced by a clean sheet design, all-new, single-cylinder, horizontalshaft commercial gasoline engine from Briggs & Stratton. “For decades, manufacturers have been modifying old designs. We went out and asked people what they wanted and needed out of a singlecylinder engine before we even started designing this platform,” said Jim Cross, marketing manager. The new line of engines features a single ignition and fuel shutoff control, an oil management system doubling the industry standard to 200 hours between oil changes and a fully-cyclonic air filtration system that doubles air filter replacement intervals to 600 hours. Other new developments included the Vacuworx SL 2 subcompact vacuum lifting system that lifts up to 2,700 pounds with quick-connect hoses that make attachment to a skid steer fast and easy. ICS Blount Inc. introduced the 536-E electric power cutter. It features water cooled controls and brushless motor technology in a lightweight tool that can safely operate in confined spaces. A Water Management System (WMS) from Hilti eases transport and movement around the job site. Just fill the water tank and be ready to start coring when you arrive on the jobsite with the DD-WMS 100. Water is recycled up to seven times inside the tank, which is

Diamond Products

Hilti

CSDA Events Husqvarna equivalent to about 30 gallons of continuous water supply. Slurry is captured in the filter bag during coring, and once full, the disposable filter bag is easily removed. Diamond Products unveiled the CB72D Hydraulic Power Pack featuring a wireless control system. This 74hp, Tier 4 Final Deutz turbocharged diesel engine is fully adjustable from 1-35 GPM hydraulic flow with a maximum pressure setting of 3000 PSI. The digital color display presents all engine, hydraulic and maintenance information. Husqvarna introduced the Z-Edge wall saw blades. Z-shaped segments reduce friction between the segment’s contact with the material being cut, thus keeping vibrations to a minimum. The shape, together with improved bond and diamond specifications provides a smoother cut and prolonged service life as well as a reduction of wear on the machine. On the machine side, the K 770 is an all-around power cutter with Husqvarna’s semi-automatic SmartTension™ system which allows for optimal power transmission and minimal wear and maximum life of the belt. The light-weight, outstanding power-to-weight ratio, reliable starts and exceptionally low vibrations mean less strain on the operator while maximizing productivity. Hopefully, the optimism that permeated the Las Vegas Convention Center will lead to the purchase and use of new product developments to build on the business right up to the 2019 show. The World of Concrete 2019 will be held January 22-25 with seminars January 21-25 at the Las Vegas Convention Center. Look out for discounted CSDA attendee registration with code A26 in the September and December issues of Concrete Openings. W WW. C O N C RE TE OPE N IN GS.COM

CSDA held four training courses at WOC 2018 covering job estimating, polishing and ground penetrating radar imaging. At the CSDA exhibit booth, excitement built each day as the association held a series of raffle drawings for some impressive prizes. A special thanks goes to Diteq Shibuya for their drill system, Husqvarna for the W70P slurry vacuum and Hilti for the driver impact kit. The inaugural Concrete Openings Awards ceremony was held in 2014 to showcase the best projects covered in CSDA’s official magazine. This year, stories from 16 jobs were split into four categories and put before a panel of judges. The panel scored each job based on its pre-planning, use of innovation, degree of difficulty and quality requirements. The project with the highest score in each category was declared the winner. Once again, the Concrete Openings Awards ceremony took place in the CSDA booth. CSDA Executive Director Patrick O’Brien presented awards to the winners. The Building Construction Award was presented to Royale Concrete of Fairfield, Iowa for its Roosevelt High School Auditorium Project. Matcon Diamond of Pittsburgh, Pennsylvania won the Road, Bridges & Airports Award for its Hulton Bridge Design Repair Project. The Baxter Water Treatment Plant Project was the winner in the Industrial Renovation category from Concrete Cutting Systems of Philadelphia, Pennsylvania. The final award was presented to Westcoast Cutting & Coring Group of New Westminster, BC, Canada who secured the Infrastructure Renovation Award for their Ruskin Dam Seismic Reinforcement Project.

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Concrete Cases

A Whale of a Job Completed by Joint Effort in New Zealand

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he Whangaparaoa Peninsula is a suburban area about 25 kilometers north of Auckland, New Zealand. “Whangaparaoa” is Maori for “Bay of Whales” and pods of orcas and dolphin are regularly spotted in the waters off the peninsula. However, dolphin and whale sightings were the last things on the minds of a team of concrete cutters from A1 Kiwi Concrete Cutters and Lowery and Sharp Concrete Cutters who recently joined forces to complete a lighting and signage project for better traffic management on Whangaparaoa Road. Whangaparaoa Road is a narrow main arterial route, servicing the ever-expanding population, now estimated to top 40,000, on the Whangaparaoa Peninsula. The peninsula has seen an increase in

population as it has become an attractive bedroom community for commuters. There has been a two lane road, one lane each way, servicing the Peninsula, which gets congested in the morning and afternoon peak driving times. The road is wide enough to feature a third lane so the solution to ease the flow of traffic was to control the third lane at peak times. For the upgrade, during the morning rush hour, two lanes would be used heading in to Auckland and in the afternoon two lanes would be used heading away from Auckland. To help drivers stay in the correct lane, seven overhead gantries would be erected, 40 lane signaling signs and lane lights to direct drivers were to be installed into the road. The lane lights would be powered by induction, therefore there would be no direct connection from the lights to the power cable, and they

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would have the ability to change color depending on power frequency. Because the major portion of this project consisted of signage and lighting, the work of a concrete sawing and drilling company was required. New Zealand CSDA member A1 Kiwi Cutters won the contract which was to cut the trench for a power cable, drill the holes in the road for the lights, control and clean slurry out of the trench prior to the cable installation and dispose of the slurry. The specifics of this cutting and drilling project included 4,196 meters (13,766 feet) of trench, 8 millimeters (0.31 inches) wide and 60 millimeters (2.36 inches) deep and 1371 holes, each 117 millimeters (4.61 inches) in diameter and 85 millimeters (3.35 inches) deep. In addition, at the positions where the trench intersected a hole, the trench width was increased to 12 millimeters (0.47 inches) and

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continued

deepened to 85 millimeters (3.35 inches). This was extended by 150 millimeters (5.90 inches) on either side of each hole. These dimensions made it easier for removal of the cores and easier installation of power cables and lights. The time constraint for completing this project was a critical piece of this job as the client wanted the project to be completed during the night, and in only seven shifts. Work hours were scheduled from 8:00 PM to 1:00 AM, when traffic would be at its lightest. This was a working time of just about five hours per shift. This schedule allowed for cleaning out the holes and trench, drying of the holes and trench, installing the cable and lights and sealing of the trench so that the road could be re-opened each morning by 4:00 AM in time for the morning peak traffic. Completing this amount of work in a very short period of time was beyond the equipment and labor resources A1 Kiwi had available at the time, so NZCSDA member Lowery and Sharp Concrete Cutters was contracted to assist A1 Kiwi. The two companies working together supplied a total of three concrete cutters, five core drillers, three vacuum trucks and four laborers to break out cores and generally keep the site tidy. In addition, five water blasters were used on the project. The work was completed in the required seven shifts, although the cutting and drilling component went more quickly than the installation portion of the job, so there was a break after three nights of work to allow the other contractors to catch up. There were several additional shifts completed by a smaller crew as there were a couple of issues that needed to be resolved when the trench began to close up. The project went well from the perspective of all involved, A1 Kiwi Cutters, Lowery and Sharp Concrete Cutters and the client with a successful outcome. The proof of a job well done will ultimately be better traffic flow for Whangaparaoa residents during rush hour, both morning and evening. REVIEW AND COMMENT ON THIS ARTICLE AT: WWW.CONCRETEOPENINGS.COM

COMPANY PROFILE: Run by two women with over twenty years in the concrete sawing and drilling industry, A1 Kiwi Cutters employs 20 operators and provides early-entry wall sawing, wire sawing, splitting, ring sawing, hand sawing and floor sawing in addition to other services involved in the sawing and drilling of concrete. Specialty Contractor A1 Kiwi Cutters and Drillers Ltd PO Box 90981 Victoria Street West Auckland NZ 1142 Email: thegirls@kiwicutters.co.nz www.kiwicutters.co.nz

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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 pat@concreteopenings.com.

Hydrodemolition By Peter Bigwood

H

ydrodemolition is a technique that uses a high-pressure water jet manipulated by a tracked robot to remove areas of loose, deteriorated and damaged concrete from structures and buildings. In its current form, the hydrodemolition robot has been available on the global market for almost 30 years, but certain developments in recent years have brought the technology to the forefront. Safety considerations, scarcity of labor, improved performance and advancements in water treatment capabilities have combined to inspire renewed interest in this futuristic approach to concrete removal. In certain applications, hydrodemolition is easily the best solution for the fast and efficient removal of concrete, and more contractors are investing in the technology to their competitive advantage. Concrete, like all building materials, deteriorates over time. Acid rain, road salt, normal wear and tear—all take their toll. Hydrodemolition is increasingly becoming the method of choice for the efficient, controlled and sustainable removal of old concrete prior to the installation of new—providing an ideal surface to which the new concrete can adhere. Examples are bridge decks, columns, roads, parking garages, power plants and other engineered structures. The technique

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offers numerous benefits compared with the more traditional use of jackhammers, handheld water jet equipment and milling machines. Hydro-demolition is applicable to all concrete structures in need of refurbishing, repair or cleaning. The method can also be used under water. SUPERIOR BONDING After the hydrodemolition process removes the initial layer, it leaves a “craggy” profile in the remaining concrete. This rough, irregular surface provides an excellent mechanical bond for the subsequent repair. Independent “pull off” tests have shown that the bonding strength is much higher than that of a surface prepared by jackhammers or other mechanical methods. The average failure stress is outstanding while using robotic hydrodemolition and exceeds 1.5 MPa up to more than 2 MPa. Another advantage is that the sound concrete and the steel rebar remain unaffected by the hydrodemolition process. With hydrodemolition, micro cracks and damage to rebar caused by the impact of jackhammers or other mechanical removal methods are virtually eliminated. The use of jackhammers and milling machines tends to leave layers of dust and

damaged concrete with small cracks extending between 10 – 20 mm into the residual concrete. This means that the surface is not ready for new concrete and may spoil the bonding for the new concrete casting. INCREASED PRODUCTIVITY The secret of the hydrodemolition process is that it pressurizes and widens existing pores and micro cracks in the weakened concrete structure using high-pressure water penetration. Material is removed as the built-up pressure exceeds the tensile strength of the concrete. In addition to the water pressure, the volume of water also contributes to the system’s efficiency. The rate of removal, for example, depends not only on the water pressure but also on the amount of water directed towards the concrete surface in order to rapidly and continuously pressurize the areas being treated. Typical figures might be 15,000 psi of water pressure, and 70 gpm of flow for the selective removal of poor quality concrete, while a higher pressure setting – up to, say, 35,000 psi—combined with a lower flow would be more appropriate for the removal of a specific, pre-determined depth of concrete, regardless of condition.

This combination of water pressure and flow, together with the precise robotically controlled movements of the water jet nozzle, creates the necessary effect criteria for the hydrodemolition process. The nozzle is moved rapidly and continuously over the set area to be removed. The jet efficiency is maximized when the jet itself is stable, and stability is influenced by the machine design, the distance from the nozzle to the point of impact, the shape and configuration of the nozzle, the water exit speed, the jet’s movement and the angle of attack. REDUCED LABOR AND ENHANCED SAFETY Robotic hydrodemolition units, either diesel or electric-powered, reduce labor and minimize injuries compared to other methods, such as chipping hammers and handheld water jetting equipment. Robots can be programmed to perform repeating cycles 24/7, which means that you get the same speed, the same performance and the same quality from start to finish. Also, increased speed of concrete removal reduces overall construction time. While it is theoretically possible to operate a hydrodemolition robot with just one operator, it is more common to deploy a two-man crew, and of course, depending on the application, and the extent of the work involved, additional personnel may be required. The robot itself can be programmed and essentially left to its own devices, tracking slowly but steadily, removing large swaths of material to a pre-determined depth. A conservative rule of thumb for the rate of material removal is over one cubic yard per hour. REBAR IS CLEANED WITHOUT DAMAGE Hydrodemolition is impact-free, avoiding vibrations that loosen rebar and cause micro-fractures, protecting the integrity of the substrate. Other methods, such as jackhammers and milling machines, may leave the rebar rusted and damaged. The vibrations from mechanical tools are also transmitted to the rebar and jeopardize the bond in the concrete that needs to be left intact. Milling machines are unable to remove the concrete below and directly underneath the rebar. As hydrodemolition is impact-free, there is no risk that the area treated will suffer any impact or vibration damage. The risk of micro-fractures in the substrate is eliminated.

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Also, with hydrodemolition all rust and scale is removed from the rebar as a natural result of the high pressure water, leaving the surface clean, descaled, and intact. EXTENDED LIFESPAN OF STRUCTURE LCC analysis done by The Swedish Cement and Concrete Research Institute (CBI) shows that hydrodemolition is a more favorable method with a repair life expectancy of 21-35 years compared to 7-12 years with mechanical chiseling. LESS INTERFERENCE IN THE INFRASTRUCTURE Contractors must always contend with both the disruptive socioeconomic effects as well as the environmental impacts during, for example, road or bridge repair. Sound, vibrations, space and time, all are factors to consider when choosing the best approach for a concrete repair job. Hydrodemolition is quieter and causes less vibration than traditional methods, and because fewer processes are involved, can also shorten the time required to accomplish the work— depending on the set-up time. Hydrodemolition remains, for now, a specialized technique for rapidly removing concrete—typically 4 inches—from surfaces and structures to prepare for a new pour. Units are available that can operate horizontally, vertically and overhead, and where necessary, greater depths of concrete can be removed, even below the rebar. In addition to the hydrodemolition robot, a complete system includes a high pressure pump/power pack, and depending on the

local regulations, some form of water treatment may be necessary. There are now self-contained water treatment units available—packaged in 20 foot containers—that can handle over 5,000 gallons per hour, reducing pH values to 7 and turbidity levels to just 25 ppm. Beyond that, contractors will often deploy a trash pump to recover the excess water and return it to the water treatment unit. A vac-truck can also be used, with the added benefit that the water can be sucked up and stored in the same vehicle and then transported off site. A water source, whether it is municipal or privately supplied is also necessary to complete the picture. There are, in North America, still only a modest number of hydrodemolition contractors, but the number has been steadily growing as new players enter the market. The number of bids in circulation where hydrodemolition is specified as the preferred method—typically for bridge deck repair, but also for parking garages, stretches of highway, and piers—is also growing, which bodes well for those who choose to embrace this unique approach to concrete removal. Peter Bigwood, VP of Sales & Marketing for Brokk Inc., is responsible for the U.S. business development of Aquajet Systems AB, a Swedish-based manufacturer of hydrodemolition robots, power packs and mobile water treatment equipment. He serves on the CSDA Board of Directors.

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Core Health Industry Bits continued

Too Sick to Work? By Erin O’Brien

T

he average U.S. employee takes 5.8 sick days per year, a number that probably seems too high to employers but pretty low to employees. There is a constant battle between the two parties about the subject and this raises the question, how sick is “too sick” to work? Colds and the flu are some of the main reasons for employees missing work, although other related illnesses and conditions can account for these missed days. For the most part, a mild cold or minor allergy symptoms do not require complete rest, and the employee does not need to stay home. The important thing for employees to remember is that if, by going to work, the employee could make their condition worse, fail to do their job effectively or risk infecting coworkers, staying home for a day or two is the best course of action. If an employee is feeling very sick, they are likely to have a hard time functioning and performing at their normal level. Also, trying to “push through” or “tough out” an illness can actually make a condition worse and prolong the amount of time the employee is sick. Going to work while contagious also increases the risk of infecting coworkers. If an employee is so sick that a doctor prescribes opiates or any controlled substance to control pain, the employee should stay home, especially if his or her job entails driving or operating heavy or dangerous equipment. It is important to know the difference between a cold and the flu, however, and determine when it is advised to stay home. The flu is a highly contagious viral infection and employees should stay home during the worst of it. A cold however, is usually less severe and may not require employees to miss any time at work. Symptoms of a cold include a sore throat, headache, sneezing, congestion and coughing. These symptoms usually emerge gradually over a few days. A cold is contagious for the first two days after symptoms start. It is during the contagious

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period that a person is advised to stay home to recover to avoid infecting anyone else. Occasionally, symptoms of a cold can include a fever, although it is usually low-grade (100 degrees F or lower). If the fever is above 100 degrees F (high-grade fever), the person should stay home until the fever subsides. The same is true for the flu, where a highgrade fever is a common symptom. Other flu symptoms include muscle aches, headache, runny nose, sore throat, cough, weakness and fatigue. Flu symptoms tend to be more severe and come on abruptly. Employees should stay home during the worst days of the flu and can return to work 24 to 48 hours after their temperature has returned to normal. Other illnesses and conditions that may warrant time away from work include seasonal allergies, sinus infections, pink eye and staph infections. Seasonal allergies are most common in the spring, although they

can occur during any time of the year. About 25 percent of the population has some type of allergy, whether it is to dust, mold, pollen, animal dander, insect stings and bites and other airborne irritants. An allergic reaction happens when a person’s immune system aggressively fights irritants that enter their system. These irritants are perceived by the immune system as dangerous and the resulting symptoms; sneezing, red, watery, itchy eyes, congestion, fatigue and trouble breathing, are the result of this attack. Typically, allergies do not require the employee to miss work, unless the symptoms become extremely severe, as they are not contagious. However, allergies can lead to sinus infections, which may result in missed time from work. If allergic symptoms have lasted longer than a few days or are getting worse, a sinus infection is the likely culprit. It is

recommended to see a doctor, who may prescribe antibiotics. Symptoms of a sinus infection include green or yellow nasal discharge, nasal congestion, facial pain or pressure, fatigue, muscle aches, dizziness, headache or aching in the upper jaw and teeth. This sinus pressure and aching is what usually prevents employees from going to work, as the pressure is so intense it can be painful just to open their eyes or move their head. The worst of the symptoms can last for two to seven days, although mild symptoms will likely linger for up to two to three weeks. Sinus infections are not contagious, so in this case, the employee should use their best judgment in deciding whether or not to go to work. Pinkeye, or conjunctivitis, can result from a viral or bacterial infection, allergies or environmental irritation. Symptoms of pinkeye include redness, tearing, itching, burning or swollen eyelids. If the cause of pinkeye is a viral or bacterial infection, it is highly contagious and the employee should stay home until the symptoms subside. Viral pinkeye will not respond to antibiotics, but the condition will improve on its own in three to five days. Bacterial pinkeye will respond to antibiotic eye drops and the employee can return to work 24 to 48 hours after starting treatment. Pinkeye caused by allergies or irritation is not contagious and employees can continue to work. Staph infections are another type of highlycontagious infection. Staph infections usually present as an abscess or something that looks like an infected cut or insect bite. They are easily treated, as long as it is communityacquired (compared to hospital-acquired, which can be much more serious and difficult to treat). Early detection is key, as the longer the infection goes untreated, the worse it becomes. Treatment comes in the form of antibiotics and avoiding contact with the infected area. Methicillin-resistant Staphylococcus aureus (MRSA) is a more severe form of staph infection that is resistant to typical antibiotic treatment, as well as being highly contagious. In both cases, it is important to see a doctor and make sure the affected area is covered at all times to prevent spreading the infection. Employees whose job includes possible skinto-skin contact with other employees should use caution to avoid infecting coworkers. Left untreated, staph and MRSA infections can lead to more severe complications. One of the most important things the employee should consider when deciding whether they are too sick to work is the welfare

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of their coworkers and the effect their illness will have on them. If the employee works in close proximity to several others, or is so sick that he or she is unable to function effectively at work, it is advised they take a day or two to rest at home. Employees should follow the golden rule— treat others as they would like to be treated. Erin O’Brien, MS, ATC is a Certified Athletic Trainer and Marketing Coordinator for O’Brien International,

the association management company that manages the Concrete Sawing and 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 a regular contributor to Concrete Openings magazine. She can be reached at erin@ csda.org or 727-577-5002.

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The Business of Business

Six Tips for Attracting Millennial Workers to the Construction Industry By Tyler Craig

T

he construction industry is facing a serious challenge. Its workforce is aging faster than any other industry in the country, according to the U.S. Bureau of Labor Statistics (BLS), and construction companies nationwide are looking to fill multiple positions. Companies are desperate for new talent because employees who have been with them the longest are transitioning out, and there is not an adequate pipeline of new candidates to take their place. The BLS numbers tell the story. In 2002, 11 percent of construction workers were 55 and older, which increased to 20.7 percent by 2015, according to the Current Populations Survey. In 2005, 10.7 percent of workers were between 20 and 24, but that number declined to 7.3 percent in 2015. In July 2016, there

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were 214,000 construction job openings, according to the BLS, and the industry is projected to add 790,400 jobs by 2024. These trends suggest that approximately 20 percent of all construction workers will retire during the next 10 years, and a total of 12 percent will be leaving the industry within the next five years. There’s one group that industry leaders are hoping will turn this situation around—the millennials. HOW TO ATTRACT AND RETAIN MILLENNIALS New data from the 2017 MRINetwork Millennial Hiring Trends Study, however, indicates that misconceptions about what is important to millennials and a lack of urgency are preventing many employers from gaining

traction with this younger generation. Despite these shortcomings, the study also reveals that recruiters expect companies to take a more strategic approach to attracting and holding on to top millennial talent in 2017. This requires them to gain a clear understanding of the factors that motivate millennials and foster their loyalty. So what can business owners do to ensure that they attract and retain this vital component of today’s work force? 1. Review the compensation package According to the MRINetwork Study, millennials selected compensation and benefits most often (28 percent) as their top priority when considering a new job. Since the last economic downturn, young workers

have not sought jobs in construction, and although construction in many sectors is back to pre-recession levels, the skilled workers are not. To attract and hire the millennial job-seeker, business owners must be ready to offer the kind of compensation that they can attract in other industries, which are also competing for them. Similarly, to other generations of workers, millennials want meaningful work and a supportive company culture, but they are primarily looking for well-paying jobs and career advancement. Beginning with a welldefined incentive compensation system, business owners can effectively combine clear direction, quality feedback and tangible rewards to develop employees who are engaged and satisfied with their jobs. 2. Build a supportive company culture Millennials want to feel their work matters and their employers appreciate them. Give employees the opportunity to come up with innovative solutions on the job, and call attention to their success. This generation also values community and philanthropic initiatives, so weaving in participation in charitable programs can also be a big draw. Another effective strategy is pairing millennial workers with more experienced workers who not only want to be mentors, but also want to learn new skills themselves, such as social media or construction apps. Finding a good mentor is important because, for many millennials, if they cannot connect with their direct supervisor in a meaningful way, they will be open to moving on even if they like the company as a whole. 3. Create a path to success In terms of what has the most impact on the decision to stay with an employer, the MRINetwork Study indicates that for more than half of millennials (53 percent) it is career pathing—mapping of incremental progression to new roles in the company. With young, ambitious millennials wanting to learn and move up quickly through an organization, companies must develop and implement focused solutions around career pathing. By allowing the employee to outline their career goals and set achievable milestones that are mapped to those goals from day one, employers can contribute to their development and demonstrate to them how they can advance and progress in their careers, making it more likely they remain with the company long term.

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As part of their career development plan, Millennials like gaining new skill sets, and diversifying their existing skill sets. In the construction industry, they want to be exposed to office and field work, in addition to different kinds of projects so they can determine what aspects of the industry they like best. Long term, it’s important for them to see the whole picture. Larger construction firms in particular often struggle with providing the career pathing that millennials look for because they are too regimented to allow upward career movement in a timely way. Companies have to review their processes and make alterations if necessary to demonstrate a proven track record in allowing people to advance. Career pathing also helps to attract candidates to the company. It is an effective branding tool when used in marketing materials about your company and particularly in the interview process. When you are able to share real examples with candidates about how motivated employees advance in the company, the organization then becomes synonymous with the ability to advance careers, providing a competitive advantage that acts as a powerful draw for millennials. 4. Be aware of the company’s market reputation In the MRINetwork Study, 40 percent of millennials said market reputation has the most influence on their impression of a company. Yet nearly half of the recruiters who were polled (48 percent) indicated that most of their clients have not developed an employer brand that is attractive to millennials. This disconnect demonstrates that employers still have a ways to go in terms of understanding how to appeal to millennials, and once they are onboard, how to leverage retention strategies that will keep them engaged and more likely to stay. Savvy millennials look at more than online efforts to establish reputation and brand recognition. They consider the overall positioning of a prospective company in terms of how well the brand is known and respected, how it stacks up to its competitors, and its future growth trajectory. This means that companies need to distribute positive messaging about the company that focuses on competitive pay, market footing and reputation, and career pathing. Although the entire strategy

shouldn’t be based on the organization’s online presence, it will need to be a key part of branding, since millennials are more likely to leverage a host of platforms like Twitter and Glassdoor to form their impressions. 5. Put technology to work for you Some progressive construction companies are using people analytics and internal employee benchmarking systems that link employee performance data to overall company performance. Providing these measures not only fosters healthy internal competition, but also aligns employees with the strategic goals of the company. By coupling these strategies, companies can effectively improve the best employees and provide specialized training to allow continued employee advancement—a key ingredient for engaging millennials. 6. Communicate a clear company vision A defined company vision is especially important to millennials kicking off their careers. By communicating the big picture, business owners can connect your vision to employees. This gives employees a clear sense of purpose and an understanding of how their efforts fit in the larger plan. When the company’s vision is inspiring and clearly communicated, millennials are more motivated to remain with your company than they are if they don’t understand or relate to the company’s vision and direction. Jobs in construction are growing, as is the number of new entrants to the workforce. Companies can narrow the gap by adapting new approaches for attracting millennials. Like anything that is built, planning and preparation are key —building a pipeline of talent is no different. By focusing on the millennial segment of the talent pool, firms won’t just survive the labor shortage—they will thrive in the changing business environment. Tyler Craig is a Construction Account Executive for Management Recruiters of Cedar Rapids, an Iowa-based executive recruitment affiliate of MRINetwork, one of the largest executive search and recruitment organizations in the world. Serving the construction and financial services markets, locally and nationally since 1976, the firm is proud to celebrate 40 years of successfully connecting clients with top talent. Craig can be reached at 319-286-4720 or email at tcraig@mricr.com.

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Industry Bits Diamond Products Names Andrew Nevener Training Manager Diamond Products has hired Andrew Nevener as Training Manager. Nevener previously was instrumental in launching the First-Cut Early-Entry product line for the company and will continue to act as product manager for the FirstCut line. Nevener worked for many years in the industry. As an account manager for the largest concrete accessories supplier in the state of Missouri and Southern Illinois, he received a broad education in the concrete construction industry in such areas as chemicals, reinforcing, forming, diamond blades, jointing, sawing equipment and his expertise became early-entry joint cutting. In his new position, Nevener will apply his experience and knowledge to the Diamond Products University class and on-site training sessions. For More Information: Tel: 800-321-5336 www.diamondproducts.com

Penhall Technologies to Offer Digital Concrete X-Ray Services in Multiple Locations Penhall Technologies, a division of Penhall Company, is excited to announce the launch of digital concrete x-ray services in their local Washington DC, Maryland, Las Vegas, San Francisco Bay Area and San Diego branches. Digital concrete x-ray is the application of hard x-rays or gamma rays to obtain a clear image of the interior of concrete. The method is useful when companies want to x-ray concrete for rebar, conduits and post tension cables to avoid damage when cutting or coring. Penhall Technologies hopes to provide this service to local construction companies with the goal of ensuring projects remain safe, on time and on budget. An added benefit of Penhall Technologies’ digital concrete x-ray services is that all their operators are also trained in GPR. Penhall Technologies previously only offered this service in Los Angeles and San Diego. They have plans to offer digital x-ray services in Seattle within the next year. For More Information: Email: euribe@penhall.com Tel: 844-211-5300 Ext 5589

Ernst “Sigi” Siegenthaler Launches Siegenthaler Consulting

K2 Diamond and Sanders Saws are Pleased to Introduce Black Knight Bridge Deck Blades Black Knight bridge deck blades are the newest blades from K2 Diamond and Sanders Saws. Available in a variety of sizes and two very unique designs, the BKS and BKL are manufactured with a new high-tech core fabrication that is engineered to reduce vibration and lower heat buildup. This state-of-theart combination results in a smoother performing diamond blade that resists the heavy stresses that exist on today’s high steel content bridge deck jobs. Impressive speed, extended life and reliability of both these blade designs make them a must try on any bridge deck sawing job. For More Information: Contact: Mike Nelson at K2 Diamond Tel: 800-539-6116 Email: mike.nelson@k2diamond.com Bill Chapple at Sanders Saw, Inc. Tel: 610-273-3733 Email: chappie@sanderssaws.com

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In September 2017, Ernst “Sigi” Siegenthaler founded his own company, Siegenthaler Consulting, to provide consulting services in the diamond sawing and drilling industry to clients worldwide. During the last 30 years, Sigi has worked in the industry first as a Hydrostress representative and then Hilti AG. With this new consulting endeavor, Siegenthaler plans to draw on his knowledge and experience in many areas including nuclear power plant decommissioning and the use of dry diamond wire sawing technology, Siegenthaler underwater cutting, off-shore drilling and dams and infrastructure projects as well as project engineering, feasibility studies, costs and resource planning and site management in this new business. Siegenthaler began his professional career in the diamond sawing and drilling industry in 1985 at Hydrostress AG in Switzerland. In 1990 he assumed a management position with Hydrostress Canada and in 1997 became a project manager in Lichtenstein for Hilti. Siegenthaler has extensive experience in many areas of the world including Europe, North America, Asia and Scandinavia. Siegenthaler can be reached at sigi@sigisiegenthaler.ch.

Bosch Introduces the GWS18V-45C 18V EC Brushless 4-1/2 inch Angle Grinder

Sensors & Software Announces Update to the EKKO_Project Software Sensors and Software has released Version 5 of the EKKO_ Project Software. EKKO_Project makes GPR analysis easy with intuitive tools to organize, edit, process and plot GPR data. This version brings users significant new features including the addition of a background image for reporting that allows for any image that can be imported to appear in the background behind the GPR survey. These images could be as-built drawings, site sketches or photos. Background images can provide context to the survey, enhance reports and help provide better communication to clients. Also included in this version are SliceView-Lines which is a feature that no longer requires grids when generating depth slices from GPR data. With accurate positioning from GPS, grids can be collected in a pseudo-grid manner by walking back and forth, and the new SliceView-Lines routine can be used to generate depth slices. These updates improve and expand EKKO_Project’s capabilities, allowing users to quickly analyze and integrate data to produce impressive reports. For More Information: www.sensoft.ca

The Bosch GWS18V-45C 18V EC Brushless Connected-Ready 4-1/2 inch angle grinder delivers the convenience of cordless grinder operation with advanced user control. The grinder features an EC brushless motor that offers maximum efficiency and low maintenance, plus connected-ready capability that delivers nextgeneration control like maintenance review and performance notifications. The Bosch GWS18V-45C grinder delivers outstanding performance, including metal cutting, thanks to the powerful EC Brushless motor design. This Bosch-exclusive design provides greater runtime and more power than similar cordless grinders with brushed motors. That means professionals can rely on a cordless grinder that delivers 10,000 no-load rpm, but doesn’t forego power in favor of maneuverability. For More Information: Contact: Steve Wilcox Tel: 224-232-2417 Email: steve.wilcox@us.bosch.com

New Hilti Rotary Hammer TE 3-C Hilti introduces a new rotary hammer TE 3-C that delivers consistent and reliable performance for drilling small diameter ranges as well as light-duty chiseling applications. Featuring an industry standard SDS + chuck and user-friendly select switch, this versatile hammer drill can tackle multiple tasks including drilling and hammer drilling in concrete and masonry, corrective and light channel chiseling in concrete and masonry as well as rotary-only drilling. The powerful Hilti rotary hammer TE 3-C delivers 3,000 rpm of performance and its hammer mode produces 5160 bpm with a 1.8 ft-lb of impact energy. It has an optimum drilling range of up to 5/8-inch and a maximum diameter drilling range up to 1-1/8 inches. And, it weighs 6.6 pounds which helps minimize operator fatigue when working overhead. There are several dust removal system options for the TE 3-C. For More Information: Tel: 800-879-8000 (U.S.), 800-363-4458 (Canada) www.us.hilti.com (U.S.) www.hilti.ca (Canada)

Expert Equipment Company Announces Two New Hand Held Core Drills from Dr. Bender Expert Equipment located in Houston, TX has added two new hand held core drills to their equipment line from Dr. Bender. The first is a 15 amp EBM33F three-speed hand held drill with load RPM of 520/1400/2900 and the second is a 15 amp EBM23F two-speed hand held drill with a load RPM of 520/1400. Both drills have a pistol grip design with a variable speed switch. For More Information: Contact: Markus Bartl Tel: 713-797-988

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Industry Bits Murray Bishop now Director of Branch Operations at Pacific STIHL in Visalia, California Murray Bishop has been promoted to the Director of Branch Operations for Pacific Stihl Inc. Bishop, an 18year employee of STIHL Inc. will now be responsible for directing and managing the sales, distribution and service of all products, parts and accessories at the company-owned branch headquartered in Visalia, California. He will also lead the development of advertising and marketing plans for the territory which includes California, Nevada, Arizona, Hawaii and Guam. Bishop most recently served as senior manager of export and logistics at STIHL Inc. in Virginia Beach, Va. He began his career with STIHL in 1999 as manager of finished goods and was responsible for shipments to domestic and export customers. Since then, he has served as manager of warehouse operations, as well as packaging operations and national traffic management.

Bishop

For More Information: www.stihlusa.com

ASCC Leadership Forum Scheduled for July 19–22 in Park City, Utah

Hilti Introduces the Laser Range Meter PD-CS for Easy Measuring Using an integrated laser module to capture and save measurements data directly onto photographs taken by its internal digital camera, the Hilti laser range meter PD-CS will help make contractors and site supervisors more productive, and eliminate the need for multiple devices—including paper and pencils. The Hilti PD-CS allows the user to measure distances to 656 feet (200 meters) with an accuracy of +/- .04-inch (1 millimeter) and add context to store data with pictures and/or text. Collected information can then be shared in a single PDF report or spreadsheet (CVS) using Bluetooth, Wi-Fi or a Micro USB connection. The two 5 MP cameras with zooming capabilities on the Hilti PD-CS make locating a target outdoors or at long distances very easy. The user can take direct and indirect measurements and calculate area and volume among many other applications. Notes can easily be added to measurements and photos, and users can create project folders for different jobsites.

Registration for the American Society of Concrete Contractors (ASCC) Concrete Executive Leadership Forum (CELF) is now open. The 2018 CELF is July 19-22 at Montage Deer Valley, Park City, UT. The forum features seminars, roundtable discussions, networking activities, and fun. Highlights of this year’s event include a reception and dinner at Utah Olympic Park and speaker Eric Shanteaua, 2012 Gold Medal Olympian and cancer survivor. Saturday afternoon activities include golf at the Promontory Ranch Pete Dye Course and comet bobsled rides down the length of the Olympic bobsled track. The ASCC is a non-profit organization dedicated to enhancing the capabilities of those who build with concrete, and to providing them a unified voice in the construction industry. Members include concrete contracting firms, manufacturers, suppliers and others interested in the concrete industry, such as architects, specifiers and distributors. There are approximately 750 member companies in the United States and twelve foreign countries. For More Information: Tel: 866-788-2722 www.ascconline.org

New Kinshofer Series of Hydraulic Mobile Shears Released

The Hilti PD-CS has 8 GB of memory and will store more than 6000 measurements with photos. The unit has an integrated Li-Ion battery with a 10-hour battery life.

Kinshofer introduces the DXS Series of hydraulic mobile excavator shears. The line features industry-leading in its size class power-to-weight ratios, jaw opening sizes, cycle times and hydraulic efficiency. The attachment series, which debuts with the DXS-50 model, is ideal for scrap processing, tire recycling and demolition. The DXS-50 has the same-sized cylinder as shears in the same weight class, but with 20 percent more power that allows users to achieve higher performance without investing in larger carriers. In addition, Kinshofer’s DemaPower™ cylinder technology gives the DXS-50 the same power as shears two sizes larger. The DXS-50 is suited for 25- to 35-ton carriers when boom mounted and 32- to 50-ton carriers when stick mounted. The DXS-50’s high power-to-weight ratio makes the attachment ideal for top-down demolition, both because contractors can use smaller carriers and because the attachment’s light weight and superior cylinder technology improve fuel efficiency while the excavator arm is fully extended. The DXS-50’s fast cycle times coupled with its high power and low fuel consumption allow contractors to complete jobs faster at a lower cost improving ROI.

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

For More Information: Tel: 800-268-9525 Email: sales-usa@kinshofer.com www.kinshofer.com

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GSSI Offers Extensive Training Programs on GPR Equipment GSSI announces their 2018 training programs, the majority of which are taught at their headquarters in Nashua, New Hampshire. The facility has two classrooms equipped with computers for students to use and two hands on training areas featuring an indoor utility test pit. For customers located on the West Coast, GSSI offers classes six weeks a year in Henderson, Nevada. Classes in Nashua and Henderson range from one to three days depending on the particular class. In addition to the regularly scheduled classes in Nashua and Henderson, GSSI offers live online webinars and on-site training for customers who cannot travel to attend a class. On-site training classes are provided at a customer’s facility upon request and can be customized or cover the standard material. Most classes are geared towards the new users but advanced classes are available for those who have at least six months of experience working with the equipment. Training courses generally require no prerequisites, no prior experience with the equipment or technology. GSSI trainers are skilled at teaching users of all educational and skill levels. For advanced users and those looking to drill deeply into the technology, GSSI can add any additional training or engineering resource. The class schedule is posted on the GSSI website so students can select the class and date that meets their

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needs. Popular offerings include classes on BridgeScan, RADAN 7, RoadScan, StructureScan Mini XT, StructureScan Pro and UtilityScan. For More Information: www.geophysical.com/training.htm

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Industry Bits Mark Krchmar 1960-2017 Brokk Adds Taylor to Enhance Focus on Training and Service Brokk welcomes Richard Taylor as its new training and application specialist. Taylor brings 23 years of industry experience to the Brokk team where he will train and assist customers and support sales. His key responsibilities include conducting onsite training, organizing demonstrations and troubleshooting machines. In addition, he will perform application audits in the facilities of both new and existing customers. Prior to working at Brokk, Taylor, who makes his home in Social Circle, Georgia, was a division manager for Bisco Refractories.

Hilti Cordless Hammer Drill/Driver SF 6H-A22 ATC Taylor

For More Information: Contact: Richard Taylor Tel: 404-317-9678 www.brokk.com

Bosch Cordless DDH361 36V and HDH 361 36V Drill/ Drivers Deliver Both Power and Protection The Bosch DDH361 36V drill/driver supplies 885 In.-lbs. of max torque and no-load rpm of 0-1,800 to handle jobs all over a jobsite. The Bosch HDH361 36V hammer drill/driver delivers 885 Inch-lbs. of max torque, a no-load bpm of 0-27,000 and a noload rpm of 0-1,800. This is one hammer drill that can handle tough materials that range from concrete to metal. At only 4 lbs. for DDH361 and 4.25 lbs. for HDH361, these tools are easy to carry and maneuver on the job. Each has two speed settings – one for high-power tasks (0-420 rpm) and one for high-speed drilling (0-1,800 rpm). The Bosch DDH361 36V drill/driver and Bosch HDH361 36V hammer drill/driver feature Bosch-exclusive kickback control, an integrated acceleration sensor that limits tool rotation by detecting sudden movement and shutting down the motor. The feature mitigates injury risk in bind-up situations. The tools also include a 25+1 precision clutch for more accurate fastener driving and reduced over tightening. A 360° Sure-Grip side-assist handle features a tongue-and-groove locking structure to increase control and manageability. For More Information: Contact: Steve Wilcox Tel: 224-232-2417 Email: steve.wilcox@us.bosch.com

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Mark Krchmar, a well-known industry veteran, passed away on November 5, 2017.. Mark was a great concrete cutting and demolition professional. He was active in several Facebook groups for concrete cutters and had a passion for restoring old cars. Mark came from Pittsburgh, PA and worked until his passing at Concrete Technology Service Mid-Atlantic, Inc. in Glenn Dale, MD. Mark also lived in Glenn Dale. He will be missed by all who knew him.

The new Hilti cordless hammer drill/driver SF 6H-A22 ATC offers best-in-class performance-to-size ratio and is the first cordless drill to incorporate Active Torque Control (ATC) for greater operator control. The ATC on the Hilti SF 6H-A22 ATC senses and reduces potential kick back by shutting off the tool if the housing begins to rotate too quickly, helping to keep the operator safer and on the job. The SF 6H-A22 ATC also takes advantage of Hilti’s new 22 V CPC Li-ion Battery technology to deliver more work per charge, improved reliability and better workforce productivity. It can also operate using Hilti 18 V batteries. Hilti’s cordless hammer SF 6H-A22 ATC is built using all-metal gearing for excellent high torque performance in a variety of applications and materials including wood, metal, masonry and aerated concrete. Its two gear settings deliver a 480 rpm no load speed in first gear and 1,600 rpm no load speed in second gear. It also has a hammering frequency of 28,800 bpm. For More Information: Tel: 800-879-8000 (U.S.), 800-363-4458 (Canada) www.us.hilti.com (U.S.), www.hilti.ca (Canada)

Brokk Names Josh Schaeffer New Regional Sales Manager for the Southeast Josh Schaffer has taken the position of Regional Sales Manager for the Southeast Brokk Inc. He comes to Brokk from Vulcan Engineering where he sold robotic systems to the foundry industry. He will cover FL, GA, AL, TN, NC and SC for the company and will oversee the entire line of Brokk and Aquajet demolition equipment and attachments. Schaeffer lives just outside Huntsville, AL with his family. For More Information: Contact: Josh Schaeffer Tel: 478- 394- 5539 Email: josh@brokkinc.com www.brokk.com

American Concrete Institute Releases 2018 ACI Collection of Concrete Codes, Specifications and Practices Formerly known as the Manual of Concrete Practice, the ACI Collection is the most comprehensive and largest single source of information on concrete design, construction, and materials, with nearly 50 codes and specifications and more than 200 practices – including all guides and reports. The ACI Collection features ACI 318 Building Code Requirements for Structural Concrete, ACI 301 Specifications for Structural Concrete and ACI 562 Code Requirements for Assessment, Repair, and Rehabilitation of Existing Concrete Structures and Commentary. Additional categories in the ACI Collection include concrete materials, properties, design, construction, reinforcement, specialized application, repair, structural analysis, and innovation, plus popular topics such as slabs, formwork, and masonry. The ACI Collection is available as a convenient online subscription, a USB drive, and an eight-volume set of books. Specifically developed for individual users, the online subscription of the ACI Collection includes access to every new ACI document as soon as it is published, plus metric and historical versions of ACI’s codes and specifications. Recent feedback indicated that current and prospective users overwhelmingly indicated the name ACI Collection of Concrete Codes, Specifications, and Practices better represented the contents than the previous name ACI Manual of Concrete Practice. Individual volumes of the ACI Collection are also available, plus special online access for multiple users, entire offices, and large multi-national companies. For More Information: Tel: 248-848-3800 www.concrete.org

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Industry Bits

continued

Brokk Introduces Powerful Brokk 500 Demolition Machine Brokk is proud to introduce the new Brokk 500, which features 40 percent more demolition power than the Brokk 400 as well as the Brokk SmartPower™ electrical system, a more powerful breaker, extended reach and industry-leading serviceability. The new Brokk 500 adds 40 percent more breaking power than its predecessor, the Brokk 400. The machine delivers 1,086 foot-pounds (1,472 joules) with each blow of the 1,510-pound (685-kilogram) Atlas Copco SB 702 hydraulic breaker. On top of that, it adds more length to Brokk’s signature three-part arm system, now reaching 24.3 feet (7.4 meters) vertically and 23 feet (7 meters) horizontally, making it ideal for work where extra reach is important. Still, the Brokk 500 retains most of the compact proportions of the Brokk 400. The Brokk SmartPower system is uniquely designed for the extremely tough operating environments of a demolition robot. Its components are either designed by or modified by Brokk to withstand the demolition forces over time. In addition, it helps the operator start the machine on a poor power supply while at the same time it protects the Brokk machine from any harmful faulty power. For More Information: Tel: 800-621-7856 Email: info@brokkinc.com www.brokk.com

SKILSAW Expands Concrete Scoring Line with MEDUSAW Walk -Behind Saw for Concrete SKILSAW has taken the next step in scoring concrete with the introduction of its 7-Inch MEDUSAW™ Walk Behind Worm Drive Saw for Concrete, model SPT79A-10. This new walk-behind saw satisfies a user’s need for a complete, ergonomic solution for scoring concrete in larger-area applications where productivity is important. This saw incorporates the same wet/dry dust management system and powerful worm drive motor as MEDUSAW, with the addition of an efficient walk-behind configuration. The MEDUSAW Walk Behind features the same powerful Dual-Field™ worm drive motor with added overload protection, to protect the motor from the end user inadvertently driving the saw forward too quickly. The saw also accommodates commonly available seveninch blades. The MEDUSAW walk behind is equipped with an adjustable arm that extends to the user’s height and folds and locks into place for transporting and storage. A larger handle and two-finger trigger provide greater control when making long cuts. An ambidextrous side assist handle gives added support. In addition to the walk-behind feature, SKILSAW also designed this saw with an improved pointer for stronger support and a larger wheel for greater visibility. The three-point line of sight allows for accurate cuts, while a large foot and oversized wheels increase the saw’s stability. For More Information: www.skilsaw.com

50 | MARCH.18

New Hilti SDS-max Combihammers TE 60-AVR and TE 60-ATC/AVR Hilti is proud to introduce two SDS-max combihammers, the TE 60-AVR and TE 60-ATC/AVR with more product intelligence than ever before, enhanced features and a significantly upgraded performance. These new TE 60s are the first class of Hilti SDS-max combihammers to use the Hilti Connect App, which lets contractors use any NFC-enabled device to access everything from getting a comprehensive tool history and summary to sending in a request for a repair from the jobsite. Both new Hilti SDS-max combihammers feature Active Vibration Reduction (AVR) which helps to reduce operator fatigue while improving productivity. The TE 60-ATC/AVR model also comes with an Active Torque Control (ATC) system that reduces injury caused from kickback by stopping the motor almost instantly if the bit binds and the housing begins to rotate too quickly. A detachable power cord helps to reduce cord damage and wear. The cord simply snaps out if too much tension is applied, and it can easily be reconnected for quick field replacement of damaged cords. Delivering 5.8 ft-lbs of impact energy at 3,300 impacts-per-minute, Hilti TE 60s are ideally suited for drilling anchor through-holes in concrete and masonry, medium-duty demolition work, coring in masonry and concrete up to four inches in diameter and chiseling out penetrations. For More Information: Tel: 800-879-8000 (U.S.), 800-363-4458 (Canada) www.us.hilti.com (U.S.), www.hilti.ca (Canada)

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

52 | MARCH.18

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

AUSTIN ENTERPRISE

HARD ROCK CONCRETE CUTTERS, INC.

Bakersfield, California

Wheeling, Illinois

CENTRAL CONCRETE CUTTING, INC.

HOLES INCORPORATED

Edgar, Wisconsin

Houston, Texas

COBRA CONCRETE CUTTING SERVICES CO. Arlington Heights, Illinois

CUTTING EDGE SERVICES CORP. Batavia, Ohio

DI-TECH INTERNATIONAL, INC.

ONLINE CONCRETE CUTTING SERVICES PTY. LTD Seven Hills, New South Wales, Australia

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

Winnipeg, Manitoba, Canada

ECHO GPR Paola, Kansas

ST-118 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-118.

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-118 Certified companies, visit www.csda.org/st118.

W WW. C O N C RE TE OPE N IN GS.COM

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

Membership

NE

Affiliate SLURRY WARS

W

Apex, North Carolina

CONSTRUCTION SYSTEMS MANAGEMENT, INC.

ME

Seattle, Washington

North American Contractors

ARK WRECKING CO. OF OKLAHOMA, INC. Tulsa, Oklahoma

BAY LINE CUTTING & CORING, INC. San Francisco, California

API CONCRETE CORE DRILLING Ashburn, Virginia

MBE

B&D CONCRETE CUTTING, INC.

CANWEST CONCRETE CUTTING & CORING, INC.

Atlanta, Georgia

Calgary, Alberta, Canada

CDT CONSTRUCTION INC. Carrollton, Georgia

GPR Contractor

EXCO, INC.

GEORADAR-DETECTION INC.

R

Bensalem, Pennsylvania

Laval, Quebec, Canada

CUT-ALL CONCRETE SAWING & DRILLING, INC.

STRUCTURAL RADAR IMAGING

Mill Creek, Washington

Overseas Contractor

ALPINE CONCRETE CUTTING AND CORING INC.

S

Anchorage, Alaska

Kent, Washington

POWER CONCRETE CUTTING, PTY LTD. Sunshine West, Victoria, Australia

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

54 | MARCH.18

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

I joined CSDA three years ago and joined the Polishing Committee. Right away, I was impressed with the way the membership welcomed a new member. Polishing was a new industry that CSDA embraced with a commitment to creating a standard for measuring surface profile. Creating the ST-115 standard (now ST-118) was a tool for concrete polishing contractors to use to raise their overall quality standards. I saw a benefit to getting involved with the revision of the standard and collaborating with other industry professionals to make it even Jessica Ledger-Kalen better for our industry. I have attended Royale Concrete the quarterly board and committee meetings for the last three years and am impressed with the work that the organizations members put into their respective committees.

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.

CSDA feels like a family and I look forward to seeing the other members at each meeting. Many manufacturers take part in the meetings and have representatives that serve on the committees and the board. Although there is a large manufacturer presence, the focus is always on what’s in the best interest of contractors. The contractor focus is just one of the attributes that make CSDA a great organization. I am proud to be a CSDA member.

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. W WW. C O N C RE TE OPE N IN GS.COM

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

Calendar

CSDA Spring Meetings, Maui, Hawaii

2018 MARCH 6-7

MAY 21-23

JUNE 21-23

CSDA Spring Meetings

IACDS 2018 Annual Convention

AIA Annual Convention

Grand Wailea – A Waldorf Astoria Resort Maui, Hawaii Tel: 727-577-5004 Email: info@csda.org www.csda.org

Hotel Mielparque Tokyo Tokyo, Japan Tel: 34 911 294 440 Email: info@iacds.org www.iacds.org

Javits Center New York, New York Tel: 727-577-5004 Email: info@csda.org www.aia.org

MARCH 8-10

MAY 24-26

SEPTEMBER 5-6

CSDA 2018 Convention & Tech Fair

Concrete Show India

CSDA Fall Meetings

Grand Wailea – A Waldorf Astoria Resort Maui, Hawaii Tel: 727-577-5004 Email: info@csda.org www.csda.org

Bombay Convention & Exhibition Centre Goregaon, India Tel: 91 22 61727110 Email: shannon.andrade@ubm.com www.concreteshowindia.com

Milwaukee Marriott Downtown Milwaukee, Wisconsin Tel: 727-577-5004 Email: info@csda.org www.csda.org

MARCH 19-20

JUNE 6-7

DECEMBER 5-6

New York Build Expo 2018

CSDA Summer Meetings

CSDA Winter Meetings

Javits Center New York, New York Tel: 315-636-4844 Email: info@oliverkinross.com www.newyorkbuildexpo.com

Dallas/Addison Marriott Quorum by the Galleria Dallas, Texas Tel: 727-577-5004 Email: info@csda.org www.csda.org

Casa Monica Resort St. Augustine, Florida Tel: 727-577-5004 Email: info@csda.org www.csda.org

56 | MARCH.18

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.

W WW. C O N C RE TE OPE N IN GS.COM

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

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

ADVERTISER

PHONE

EMAIL

26

Brokk, Inc.

877-276-5548

peter@brokkinc.com

25

CSDA Company Certification Program

727-577-5004

info@csda.org

Inside Front Cover, 47

Diamond Products

800-321-5336

jpalmer@diamondproducts.com

25

Diamond Vantage

949-428-2003

sunny@gtdiamond.com

27, 45

DITEQ Corporation

816-246-5515

mikeo@diteq.com

17

Dixie Diamond–Concut Group

678-296-3747

gwolters@dixiediamond.com

47

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

28, 29, Outside back cover

Husqvarna Construction Products

913-928-1442

cate.stratemeier@husqvarna.com

2

ICS, Blount Inc.

800-321-1240

marketing@icsdiamondtools.com

21

Lissmac Corporation

518-326-9094

sales@lissmac_corporation.com

45

New York Build Expo

315-636-4844

info@oliverkinross.com

55

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

15

Triple E Equipment

954-978-3440

aberg@eeeequipment.com

37

Vacuworx

918-259-3050

paulab@vacuworx.com

58 | MARCH.18

One power source. Many tools. Get more done.

3P8 HF Wire Saw

Pentpak 427

8-20 HF Wall Saw

CBK HF Wall Saw 6-10 HF Wall Saw

CW630 HF Chain Saw

CALL TO ORDER 800.321.1240 PARTS & SYSTEMS STOCKED IN ARIZONA FOR IMMEDIATE SHIPPING. © 2018 ICS | Blount Inc. Pricing and specifications subject to change without notice.

ICSDIAMONDTOOLS.COM

Director’s Dialogue

Thank You A common expression of gratitude, but one especially appropriate to CSDA volunteers PATRICK O’BRIEN Executive Director

A

ssociation members pay dues, but many CSDA members also contribute their time, talent and financial resources. These volunteers serve in many different capacities: as committee members, convention speakers or moderators and Board members or Officers-- just to name a few. The Officers and Board of Directors are elected by the membership and are the most visible group of volunteers. These dedicated leaders have contributed a great deal of their time, effort and knowledge over many years. Often they start serving as committee members and then as committee chair. After election to the Board, they continue to serve for one or two 2-year terms. If they pursue election as an Officer and become President they will often have served for a total of 10-12 years including vice president, secretary/treasurer and past president. This is quite a commitment! But not everyone has this desire or can afford that lengthy time commitment. Many serve on a committee or two for a few years and then rotate off. The committees complete numerous projects that ultimately benefit CSDA members. They pay for their own travel to the quarterly meetings and often work between meetings to complete their committee projects.

60 | MARCH.18

CSDA has other ways members can volunteer, perhaps as a convention speaker or a roundtable moderator. Some may also assist with the training courses. Others informally serve as mentors to new members or just take part in informal problem-solving whether in person at a meeting or the convention or over the phone with suggestions based on years of experience in the industry. The World of Concrete is yet another function where members can volunteer to help in the CSDA booth. It makes such a difference to have a contractor member in the booth talk to a prospective member during the show. The personal connections made during these many volunteer opportunities often last a lifetime. Lastly is Concrete Openings magazine, an industry success story that could not have happened without the job stories provided almost entirely by member contractors. If you would ever consider becoming more involved please call or join us at one of the quarterly meetings or at the convention. There are many opportunities that can be tailored to meet your needs and desires and we would love to discuss these with you. CSDA has survived and thrived, in large part, because of the combined efforts of so many. Thank you to everyone who has contributed to make CSDA what it is today.

POWER AND PERFORMANCE WITHOUT THE WEIGHT Demolition hammer TE 2000-AVR

The TE 2000-AVR is the perfect blend of power, ergonomics, and weight. Weighing in at 33 lbs., it is easy to maneuver and transport throughout the jobsite, and is ready for use in minutes thanks to the detachable cord and quick TE S-connection. With a t-handle design and exceptionally low vibration from Hilti’s innovative sub-chassis AVR (Active Vibration Reduction) system, the TE 2000-AVR allows for efficient performance and maximum working comfort.

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

BC • 01/18

Add the TE 2000-AVR to your tool arsenal today to handle a variety of demolition and breaking applications and you’ll notice improved productivity while decreasing repair frequency.

HUSQVARNA Z-EDGE DIAMOND TOOLS

REAL LIFE

Husqvarna Z-EDGE wall saw blades and drill bits have been optimized for real life – providing powerful, fast cutting and extended product life. The new Z-shaped segments, together with improved bond and diamond specifications, provides a smoother cut, prolonging the life of the blade and reducing the wear on the machine. Giving you the edge – for the long run.

www.husqvarnacp.com/us - www.husqvarnacp.com/ca-en hcpcustomer.service@husqvarna.com

Phone: 800-288-5040

Copyright © 2018 Husqvarna AB (publ). All rights reserved. Husqvarna and other product and feature marks are trademarks of the Husqvarna Group as displayed at www.international.husqvarna.com We reserve the right to make changes in technology and specifications without prior notice.