Asphalt Contractor February 2020

PRECISION & PLANNING

FEBRUARY 2020

KEY TO RACETRACK PAVING SUCCESS

YOUR COMPLETE GUIDE TO CONEXPO

2020:

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We have the products, educational sessions and after-hours experiences you won’t want to miss in Las Vegas.

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TABLE OF CONTENTS |

FEBRUARY 2020

COVER STORY Precision & Planning Key to Racetrack Paving Success Granite completes complex asphalt paving project at Barber Motorsports Park in just 41 days. | 56 SPECIAL REPORT: CONEXPO 2020

10 What’s Happening in Las Vegas?

Check out the newest equipment, educational sessions and nightlife opportunities you won’t want to miss when you’re in Vegas.

34 Session Preview: Training & Technology Tim Kowalski with Wirtgen America will discuss intelligent compaction and thermal imaging during his CONEXPO session, but he says all the technology in the world won’t help poor training.

50 Session Preview: Three Keys to Asphalt Plant Performance Ron Sines with CRH Americas will help contractors better understand how they can properly monitor key performance metrics at their asphalt plant to improve performance and profitability during his CONEXPO session.

64 Session Preview: How to Pave Smarter with Grade & Slope Technology

ASPHALT CONTRACTOR FEBRUARY 2020

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PRESERVATION UPDATE

26 Can AI Help Municipalities Improve Roads?

72 Logistics Prove Challenging for Island Pavement Preservation Project

RoadBotics delivers fast, objective and affordable road assessments using artificial intelligence and smartphones, saving asset owners time and money.

VSS International, Inc. completed pavement repair and a Type II slurry seal inside San Juan Island National Historic Park.

PRODUCTION NOTES

44 Palmetto Upgrades to Better Serve Community

Todd Mansell with Caterpillar will help contractors better understand this helpful tool for asphalt paving at his CONEXPO session.

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TECHNOLOGY MATTERS

New baghouse helps reduce emissions, helping the asphalt company increase efficiencies and become a better neighbor.

IN EVERY ISSUE 8

Editor’s Perspective

82 The Last Exit

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DIGITAL CONNECTION www.ForConstructionPros.com/Asphalt

States Seek Stiffer Penalties for Drivers Caught Speeding in Work Zones Lawmakers in Vermont, Pennsylvania and Illinois are upping penalties for those drivers who ignore work zone speed limits and distracted driving laws.

[VIDEO] Continued Momentum for Construction Expected in 2020 ABC Chief Economist Anirban Basu predicts continued momentum for construction in 2020 amidst an overall wait and see based on economic uncertainties.

Search: 21106661

Search: 21109261

5 Common Questions on How to Successfully Haul Heavy Equipment Here are some answers from industry leaders to five common heavy-haul questions.

ARTBA: Environmental Reforms Will Spur Transportation Infrastructure Improvements

Search: 21107562

Association says proposed environmental policy reforms will reduce delays to transportation improvement projects and maintain environmental safeguards.

Search: 21110679 WWW.FORCONSTRUCTIONPROS.COM/ASPHALT

CONTRACTOR WWW.FORCONSTRUCTIONPROS.COM/ASPHALT WWW.FORCONSTRUCTIONPROS.COM/ASPHALT

Get social with us! Share pictures of what you’re working with over 27,000 other asphalt contractors on our Facebook page: Facebook.com/ Asphalt.Contractor/

CONTRACTOR LATEST INNOVATIONS FOR ASPHALT PROFESSIONALS

LATEST INNOVATIONS INNOVATIONS FOR FOR ASPHALT ASPHALT PROFESSIONALS PROFESSIONALS LATEST

ASPHALT ASPHALT

FEBRUARY 2020 Vol. 34, No. 2

CONTRACTOR CONTRACTOR LATEST INNOVATIONS FOR ASPHALT PROFESSIONALS

LATEST INNOVATIONS FOR ASPHALT PROFESSIONALS LATEST INNOVATIONS FOR ASPHALT PROFESSIONALS

Published by AC Business Media.

Asphalt

Asphalt CONTRACTOR

CONTRACTOR

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Published and copyrighted 2020 by AC Business Media. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording or any information storage or retrieval system, without written permission from the publisher.

Asphalt Contractor (ISSN 1055-9205, USPS 0020-688): is published ten times per year: January, February, March/April, May, June/July, August, September, October, November, December, with an additional Buyer’s Guide issue published in August by AC Business Media, 201 N. Main Street, Fifth Floor, Fort Atkinson, Wisconsin 53538.

Periodicals postage paid at Fort Atkinson, Wisconsin and additional entry offices.

POSTMASTER: Please send change of address to ASPHALT CONTRACTOR, PO Box 3605, Northbrook, Illinois 60065-3605.

Printed in the U.S.A. SUBSCRIPTION POLICY: Individual subscriptions are available without charge only in the USA. The Publisher reserves the right to reject nonqualifying subscribers. One-year subscription to nonqualifying individuals: U.S. $45.00, Canada & Mexico $65.00, and $95.00 all other countries (payable in U.S. funds, drawn on U.S. bank). Single copies available (prepaid only) $10.00 each (U.S., Canada & Mexico), $15.00 each (International).

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ACCURACY MADE EASY ALL NEW COMMAND FOR COMPACTION: CONSISTENT, PRECISE PASSES, EVERY TIME

COME SEE US AT FESTIVAL GROUNDS AT CONEXPO-CON/AGG!

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cat.com/conexpo

Get up to 60% better pass coverage with the all-new Cat® Command for Compaction.

The new groundbreaking operator-assist technology delivers consistent results with uniform compaction, even with multiple operators. You’ve got a tough job to do, and with Command for Compaction, we’re right there with you.

00 © 2020 Caterpillar. All Rights Reserved. CAT, CATERPILLAR, LET’S DO THE WORK, their respective logos, “Caterpillar Yellow”, the “Power Edge” and Cat “Modern Hex” trade dress as well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.

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CONTRACTOR

LATEST ASPHALT PROFESSIONALS PROFESSIONALS LATEST INNOVATIONS INNOVATIONS FOR LATEST INNOVATIONS FOR ASPHALT PROFESSIONALS

EDITOR’S PERSPECTIVE

FEBRUARY 2020 • Vol. 34, No. 2

ASPHALT

Jessica Lombardo, Editor

CONTRACTOR LATEST PROFESSIONALS LATEST INNOVATIONS FOR ASPHALTPROFESSIONALS LATEST INNOVATIONS FOR ASPHALT

Published by AC Business Media

jLombardo@ACBusinessMedia.com 920.542.1247

We Have

CONEXPO Covered

From educational previews to a map of exhibitors tailored to the asphalt industry, this issue is your guide to getting the most out of the big show

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very three years, North America hosts CONEXPO-CON/AGG in Las Vegas; and every three years, Asphalt Contractor Magazine pulls together a massive show issue filled with the news, products and technologies that have been announced thus far for the road building industry.

CONEXPO pre-show coverage can be found throughout this issue, with new product releases, education session previews covering paving technology and asphalt production, and the Road Builders Guide to CONEXPO map showcasing exhibitors tailored to our industry.

The foldable map, which was mailed with this issue, is designed to help attendees navigate the indoor exhibition space, plus the massive outdoor lot locations in a way that makes the most sense for their business. Asphalt contractors don’t necessarily want to walk into a hall filled with engine components, so use the map as your guide to the exhibitors that will be most relevant to you.

One side of the map features an extensive layout of the halls with highlighted logos of manufacturers specific to the road building industry. The flip side of the map lists road building exhibitors in alphabetical order so you can pinpoint the specific companies you’re looking for and find their location easily.

Be sure to stop by the Asphalt Contractor booth, located at N10565 in the North Hall, to watch exclusive show coverage and analysis

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of what’s happening at the show. We’ll be broadcasting live with experts about the latest technology and trends live at the event and discussing potential impacts for contractors.

MISS THE SHOW? THAT’S OK! In the case of CONEXPO, everything that happens in Vegas, doesn’t stay there.

If you can’t make it to the show, bookmark ForConstructionPros.com to get up to-the-minute show coverage plus postshow announcements and analysis of the show. Make sure you’re also following us on Facebook as we’ll be sharing live video from the show floor featuring exclusive interviews with product experts on what’s being unveiled in Las Vegas.

We will also have a full CONEXPO show report in our March/April issue with the post-show coverage and product launches you missed so subscribe today at https://www.forconstructionpros.com/subscribe/print/acon.

As always, you can reach me at jlombardo@acbusinessmedia.com before, during and after the show to share what you’d like us to cover more of in the magazine.

CONEXPO presents a huge opportunity for contractors to grow their business and we want to help any way we can.

ASPHALT CONTRACTOR FEBRUARY 2020

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Asphalt CONTRACTOR

201 N. Main Street | Fort Atkinson, WI 53538 800.538-5544 • www.ACBusinessMedia.com LATEST INNOVATIONS INNOVATIONS FOR FOR ASPHALT ASPHALT PROFESSIONALS PROFESSIONALS LATEST PROFESSIONALS LATEST www.ForConstructionPros.com/Asphalt

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SPECIAL REPORT |

BY JESSICA LOMBARDO, EDITOR

Your Guide to

CONEXPO 2

Take a look at what you’ll see this year in Las Vegas!

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very three years, the industry convenes in Las Vegas to showcase the latest and greatest construction equipment and technology manufacturers have to offer. This year, CONEXPO-CON/AGG will be held March 10-14th at the Las Vegas Convention Center. From game-changing new pieces of iron to a thriving nightlife, the next few pages have everything you’ll want to see during your trip.

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SHOW HOURS Tuesday March 10 – Friday March 13: 9:00 a.m. – 5:00 p.m.

Saturday March 14: 9:00 a.m. – 3:00 p.m. *Times are Pacific Standard Time (PST)

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★ WHAT TO SEE IN 2020 The Festival Grounds: The 2020 show has expanded to the Las Vegas Festival Grounds located adjacent to the Circus Circus Hotel on the Strip — adding approximately 1.5 million square feet (about the same size as the Gold Lot). The Festival Grounds will feature indoor and outdoor exhibits. Products for earthmoving, hauling, land clearing and lifting can be found in the new lot.

Tech Experience: The Tech Experience is back and is now in

two locations (Silver Lot 3 and Festival Grounds). The 2020 Tech Experience will focus on what’s changing in the construction industry in the key areas of modern mobility, sustainability and smart cities.

Tech Talks: Also in Silver Lot 3 will be 24 sessions of Tech Talks featuring subject matter experts who will offer presentations to expand on what’s changing in mobility, sustainability and smart cities.

Women in Construction: There will be several events highlighting women in the industry including a breakfast on March 11, an influencer meet and greet and panel discussion also on March 11, and an executive lunch forum on March 13.

IFPE 2020

Once again, the International Fluid Power Exposition (IFPE) will be colocated with CONEXPO-CON/AGG. IFPE is an international exposition and technical conference dedicated to the integration of fluid power with other technologies for power transmission and motion control applications.

O 2020 Carlson EZR208 Rear-mount Screed The 7,800-lb. EZR208 highway-class screed features a standard paving width of 8 ft. to 15 ft. 6 in.

• 20-in.-deep single-piece screed plates paired with state-of-the-art heating elements • Extension support system includes a high-strength tubular frame and firmly fixed chrome rods for optimal strength even at 22 ft. with bolt-ons • Low-profile extensions provide better line of sight to augers and material head • Standard vibration absorption pads located at each operator station • Deep telescoping walkways CONEXPO Booth: C30336 ForConstructionPros. com/20987452

Sakai GW754 Vibratory Pneumatic Roller The Sakai GW754 vibratory pneumatic tire roller is widely versatile for various types of materials from hot mix asphalt (HMA) mixes to soils.

• Vibrating tires massage materials dynamically and compact them more uniformly which helps to cut operating cost on job site by the versatility and high compactive efforts.

• Smaller size of machine, weighing 22,440 lbs, performs better than larger PTR weighing 55,000lbs.

• Quiet compaction operations required for bridge deck and in residential areas can be achieved with this model CONEXPO Booth: C31829 ForConstructionPros.com/21109564

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FEBRUARY 2020 ASPHALT CONTRACTOR

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SPECIAL REPORT: CONEXPO 2020

Trimble CCS900 Compaction Control System The Trimble CCS900 Compaction Control System is a satellite-based positioning solution offering contractors the ability to compact surface material to a target density and check finished grade accuracy in the same process.

• Using advanced Trimble satellite-based positioning sensors and powerful on-machine software, CCS900 is designed for soil and sub-surface compaction as well as asphalt compaction • Provides continuous compaction control for advanced compaction measurement capability, display and mapping of compaction measurements in real time and on-machine documentation of compaction results CONEXPO Booth: F4467/N11400 ForConstructionPros.com/10366715

Topcon Upgraded SmoothRide Data Collection Software The RD-M1 Collect 2.0 includes updates designed to facilitate and optimize mapping of road conditions.

• Improved interface simplifies setup and automatically detects the position of the wheel sensor • Memos feature allows balloons with messages to be added onto the map during data collection and made visible in the processing software • Plan Route feature allows for the import of kml files of predetermined routes CONEXPO Booth: N12701 ForConstructionPros.com/20986180

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WHERE TO EAT The Las Vegas Steak House The steakhouse is a staple for dinner out in Las Vegas, and the city has no shortage of delicious options. While it’s tempting to visit them all, that’s probably not possible. Here’s a sampling of Las Vegas steakhouse options to whet your appetite.

Definitely check one (or more) of these out while you’re in town.

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Gordon Ramsay Steak Located in the Paris Las Vegas, Gordon Ramsay Steak is a highly rated steakhouse that appears at the top of many searches for best steakhouses in Las Vegas. Internationally renowned chef Gordon Ramsay opened his Vegas steakhouse in 2012.

The roasted beef Wellington tops the list of dishes to try when you dine here.

Other suggestions include a 32-oz royal long-bone chop and the triple seared Japanese A5 Kobe. Or — if you want to venture outside of the beef options — try the iced shellfish platter or the mac and cheese.

Aside from dining, guests can get a glimpse into Chef Ramsay’s beef aging program, a steak cart presentation for every table and a handcrafted cocktail.

Dep

THE Steak House If you like to see your meat prepared for you, stop over to Circus Circus to get a table at THE Steak House, which has been serving Las Vegas guests for over 30 years. THE Steak House serves Midwestern beef that is dry-aged for 21 days in a glass-enclosed room that guests can see from the main dining room.

Adding to the excitement, the cooks prepare the prime cuts over an exhibitionstyle, open-hearth mesquite charcoal broiler.

The dinner menu has five steak options that include New York strip, filet mignon, porterhouse, prime rib and ribeye on the bone. There’s also a selection of seafood and chicken options.

Each entrée comes with fresh baked breads, vegetable and choice of potato.

Try the tri-color peppercorn sauce or cheddar cheese sauce for an extra bonus on your steak.

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STK Located in The Cosmopolitan, STK offers a more modern, sleek style steakhouse that even boasts a live DJ. Executive Chef Stephen Hopcraft has been featured on Bravo and Food Network. STK has also been named to OpenTable’s 100 Best Steakhouses in America.

Don’t just come for the vibe, though. The dinner menu boasts 11 steak options of USDA beef primarily from farms in Iowa and Nebraska. Steak options include filet, flat iron steak, sirloin, bone-in ribeye, porterhouse and more.

Top your steak with one of seven topping options like jalapeno onions, truffle butter or go all out with a King Crab topping. There are also eight sauces to choose from.

Astec Voyager 140 Portable Asphalt Plant The Voyager 140 can produce up to 140 tph with up to 50% RAP. • Plant can be transported and set up and tested in about a week • Double Barrel Drum with standard V-Flights provide uniformity of aggregate veil CONEXPO Booth: C30336 ForConstructionPros.com/21064763

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Visit us at booth number C31113

We're challenging the status quo of paving Dependability and Lowest Cost of Ownership with the Dynapac MF2500CS • Versatile material application

including Asphalt, Base material, RCC and more

• Unmatched production capacity

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with 70% less wear parts, reduces frequency of rebuilds

• Unmatched operator comfort

increasing productivity with best in class visibility thru clear-view height adjustable operator platform and fully automated functions

• Lowest cleaning time

self-cleaning conveying system

• No more flat tires & and easy

to transport/pave on bridges

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New features launching at Conexpo 2020!

Contact your local dealer, or visit dynapac.us/partsguarantee for details.

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SPECIAL REPORT: CONEXPO 2020

WHERE TO EAT Tom Colicchio’s Craftsteak If you find yourself at the MGM Grand, stop in at Craftsteak. The restaurant itself got a bit of a remodel at the end of 2019 for a fresh look. The menu features ingredients from small family farms, artisanal producers and day-boat fisherman.

The beef entrée include steak like ribeye and bone-in filet. There are also a few surf and turf options if you’re looking for a bit more than steak. There is an extensive side dish menu to add to your meal as well as an award-winning wine, bourbon and scotch list.

CUT Las Vegas has no shortage of restaurants by celebrity chefs and CUT by Wolfgang Puck, located in The Palazzo, definitely makes the list of celebrity chef steakhouses to try. It is an AAA Four Diamond Award-winning restaurant that puts a contemporary twist on the classic steakhouse.

The restaurant menu offers a wide array of options for a broad appeal. Signature cuts of beef are offered along with seafood, pork chops and more. Try Japanese pure breed Wagyu beef or USDA prime aged New York sirloin, ribeye or porterhouse.

You can’t order an entrée without trying one or more of the sauces, which include a house-made steak sauce, cognac grain mustard and more.

If you’re looking for the right wine to accompany your meal, CUT has a list of over 500 wines to choose from. Or, check out the bar inside the restaurant with custom cocktails and a roaming custom cocktail cart for tableside mixology.

STRIPSTEAK Located in Mandalay Bay, STRIPSTEAK features a classic menu in a modern steakhouse atmosphere. The first steakhouse for Chef Michael Mina, STRIPSTEAK uses corn-fed, all-natural meat.

Choose from 10 beef entrée options including bone-in ribeye, New York strip, filet mignon, Japanese A5 Wagyu and Australian tomahawk, among others. Choose from 12 steak accompaniments like bleu cheese crumbles, black truffle butter or a trio of sauces.

Add a side dish, salad, appetizer or a trip to the Raw Bar to go along with your meal. Wash it down with a selection from an extensive drink menu including 100 single malt scotches.

Dynapac MF2500CS Material Feeder Product Line The Dynapac MF2500CS material transfer vehicle product family includes the MF2500 and the MF2500CS with SwingApp. The units can handle a variety of material applications including asphalt, concrete, sand and base material. The SwingApp functionality can transform the unit into an offset feeder by swinging the conveyor belt up to 55° in either direction.

• Conveyor belt system can empty standard 35-ton truckload in 35 seconds • Dynapac Clearview platform raises operator station 3 feet with a touch button • Operator platform on each side of feeder allows for swing-out functionality and can pivot 90° • Fully automated with integration of distance control and feeding sensors • Cummins QSB 6.7-C220 diesel engine • Unveiling at CONEXPO 2020, the MF2500 will now feature remix capabilities CONEXPO Booth: C30316 ForConstructionPros.com/20994988

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Caterpillar F-Series Pavers The AP500F and AP600F have wheeled undercarriages while the AP555F, AP655F and AP1055F come with the Mobil-Trac undercarriage.

• SE-Series screed platform available with vibratory only or vibratory and tamper bars • Some models offer screed packages with the capability of paving up to 33 ft. wide • ACERT Tier 4 Final engine includes standard Eco-mode and automatic engine speed control • Refined heat distribution of screeds allows integrated generator to bring screed plates to proper temperature in about 15 minutes CONEXPO Booth: F4455/N10647 ForConstructionPros.com/21037730

Troxler Moisture Measurement System The Troxler Moisture Measurement System (MMS) is a device that continuously measures the moisture of the virgin aggregates for continuous mix drum asphalt plants.

• Continuous moisture monitoring helps reduce variations in asphalt content which leads to cost savings and quality improvements • Lets you know moisture value in virgin aggregates to within ±0.5% • Contactless system, so no wear components • Maximize potential with seamless integration with software providers • Fewer stockpile measurements CONEXPO Booth: C32573 ForConstructionPros.com/21016717

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PELLETIZED RUBBER BINDER Environmentally friendly, cost effective

pelleted rubber modified products. No more field blending at the hot plant site.

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NO SPECIAL EQUIPMENT REQUIRED Handled as a bulk material with existing equipment at

the hot plant. Introduced through a RAP collar of a drum mix plant or directly into the mixer of a batch plant.

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PACKAGED FOR EASY SHIPPING Transported and stored at ambient temperature until needed. No need for agitated/heated tanks or the cost of keeping binder hot 24/7.

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SPECIAL REPORT: CONEXPO 2020

ADM EX 8844 Asphalt Plant The ADM EX Series Model EX 8844 asphalt plant allows contractors to increase capacity with up to 50% RAP in a compact package.

• Counterflow technology allows for maximum heat transfer and fuel efficiency via separate drying and mixing zones • Efficient plant design provides single-operator capability, easy troubleshooting and simple on-site maintenance while virtually eliminating blue smoke and hydrocarbon emissions for clean operation Optional plant control add-ons allow for greater customization, uptime and efficiency, and are available for use on any asphalt plant CONEXPO Booth: S5455 ForConstructionPros.com/S5455

Weiler E2850B Remixing Transfer Vehicle The E2850B Remixing Transfer Vehicle features 25 tons of onboard storage, triple-pitch remix augers and 600-tph discharge capacity for nonstop, non-contact paving with reduced particulate and thermal segregation.

• Variable-speed elevator and conveyors allow chain speed to match production, minimizing wear and material segregation • Auto dump and dump assist features optimize truck exchanges for continuous paving • Rear steer option provides an inside turning radius of 14 ft. with crab and coordinating steering and auto center • 18-in. shifting operator platform with conveniently located controls for optimal visibility and comfort CONEXPO Booth: C32501

Roadtec RP-250e 10-ft. Asphalt Paver The RP-250 heavy-duty 10-ft. paver has large tires and an adjustable frame that provide optimal weight distribution and tractive effort.

• 252-cu.-ft. hopper with a 10-ft. 3-in. width and is capable of paving speeds up to 233 fpm and travel speeds up to 13 mph • 241-hp Cummins QSB 6.7 six-cylinder Tier 4 Final diesel engine and Sauer Danfoss Series 90 hydraulic pumps for propel and material feed • Antisegregation design of the feed tunnel, feed tunnel discharge and rear augers • Standard sonic feed sensors control each side of the feed system CONEXPO Booth: C30336 ForConstructionPros.com/21088120

ForConstructionPros.com/21047850

WHERE TO EAT Echo & Rig Butcher and Steakhouse Looking for a bit of a different steakhouse dining experience than the typical Las Vegas option? Check out Echo & Rig on Rampart Boulevard, 15 minutes from the Las Vegas Strip.

As the name says, this steakhouse is also a butcher shop featuring a large open glass meat locker, vertical displays and a demonstration area. Select a cut of meat to take home and grill or cook up.

Or, you can sit down and order off the menu. The beef menu includes classics like ribeye, tenderloin and New York strip, or try one of the options off the Butcher’s Cuts menu. Accompany it with soup, salad and sauce options including charred onion, lemon chimichurri and more.

Del Frisco’s Double Eagle Steakhouse Just down the road from the Las Vegas Convention Center is Del Frisco’s Double Eagle Steak House. Featuring USDA Prime aged corn-fed beef that is shipped fresh to the restaurant, Del Frisco’s offers an ala carte menu that includes cut to order meats and family style side dishes.

Del Frisco’s offers a variety of dining options including the dining room, outdoor seating, cigar patio, sports room and eight private dining rooms.

The wine list boasts over 1,200 wine options. With 17 steak options on the menu in addition to seafood and chicken, there is something for everyone to enjoy. Try a hand-cut filet mignon, ribeye or porterhouse or opt for one of the dryaged or Wagyu steak entrées. If you have room after dinner, try an option off the large dessert menu like Butter Cake, Chocolate Mousse or Del’s Delight.

Golden Steer Steakhouse Opened in 1958 and claiming the title of Las Vegas’ oldest steakhouse, Golden Steer Steakhouse on Sahara Avenue has hosted many a visitor including Elvis, Frank Sinatra and Muhammad Ali. The dining experience gives a nod to the classic steakhouse atmosphere and décor with old-Vegas charm. Enjoy dinner at this steakhouse and put in a request to sit at one of the many favorite booths of celebrity diners.

Golden Steer Steakhouse serves prime aged beef that is wet-aged for 35 days. Ala carte steak options include ribeye, filet mignon, shorthorn, longhorn, porterhouse and prime rib, among others.

Diners can also choose from appetizers, soup and salads, seafood, sides and the dessert menu.

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C R AC K P R O M E LT E R /A P P L I C AT O R S H AV E REVOLUTIONIZED THE CRACK FILLING INDUSTRY • The Industry’s Fastest Material Heating Time • State-of-the-Art Safety Innovations Including the Industry’s Lowest Profile Design - Provides Maximum Operator Safety

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LOCATIONS NATIONWIDE (800) 395-7325

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SPECIAL REPORT: CONEXPO 2020

CASE Methane-Powered Wheel Loader Cuts Fuel Cost 30%, Emissions 80% The TETRA is as methane-powered wheel loader that produces the fuel from waste products and renewable sources, which ultimately powers the machine.

• The CASE concept uses an FPT Industrial six-cylinder methane engine that has been specifically developed for construction applications and delivers maximum power of 230 hp – identical to the equivalent diesel power plant • This is achieved with a 50% reduction in drive-by noise levels, which makes it suited for municipal applications and when working in close proximity to offices, residential areas and people CONEXPO Booth: N11825 www.forconstructionpros.com/21063402

Astec Mobile Screens Launches Ranger Compact Track Line Astec Mobile Screens Ranger line of compact track equipment, will include a variety of jaw crushers, impact crushers, cone crushers, incline screens and trommels.

• These compact units will serve a variety of new markets including building and construction, landscaping, quarry operations and plant and tool hire • The ease-of-use, ease-of-transport, versatility and flexibility of compact, trackmounted units make them ideal for smaller operations that require powerful equipment with a limited footprint CONEXPO Booth: C30336 ForConstructionPros.com/21105604

Moisture Sensors for Asphalt

Hydro-Probe

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With 35 years experience and over 75,000 units sold, you can be sure that our digital moisture sensors will give you accurate results and reliability that is unbeatable.

• • • • • •

Accurate, consistent, real time moisture measurement Digital technology with precise linear output Easy to integrate into new or existing systems Remote calibration and configuration Temperature stable Local Service & Support

Tel: +1 231 439 5000 enquiries@hydronix.com

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TRANSPORTATION How Do I Get to the Show?

Hotel Shuttle Service - Booking your rooms through the show hotel block gives you access to free shuttle service, helping you save time and money on travel. Shuttle service is available between the Las Vegas Convention Center, the Festival Grounds and all official show hotels (with exception to hotels located within walking distance of convention center and/or Festival Grounds).

Shuttles will operate during peak hours on official show days of March 10-14, 2020.

Monorail - The Las Vegas Monorail has several stops near the show to get you where you need to go. You can check out the schedule and routes online: https://www. lvmonorail.com/train-hours/ Taxi, Uber or Lyft - Ridesharing around the convention center is available but be sure to find the approved drop-off locations.

Parking - There is limited parking near the show. It is suggested to take advantage of the hotel shuttle service, monorail, taxi or other rideshare service.

How Do I Get Around the Show?

Free Shuttle Service - CONEXPO will provide shuttle service throughout the show to help you get around and rest your feet.

Monorail - With three Las Vegas Monorail stops near the show, you will be able to hop on to get to another show location.

NEW! Golf Cart Service & Pedicab Service Watch for these around the show campus and if seats are available, hop on!

www.ForConstructionPros.com/Asphalt

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SPECIAL REPORT: CONEXPO 2020

WHERE TO PLAY: BET ON VEGAS CASINOS When you think of Las Vegas you think of casinos which boasts over 100 casinos in the area. Whether you’ve been to Vegas many times or you’re a first timer, the casino options are daunting. But with a little research you just might find the best casino in Vegas — or at least a new favorite.

Best overall casinos If you’re looking for an overall experience and believe in the power of reviews, some of the highest rated or most recommended casinos in Las Vegas include: • Bellagio • MGM Grand • Aria • Mirage • Wynn • Venetian • Mandalay Bay • Casino Royale • New York New York • Red Rock Casino • Encore • Palazzo • Cosmopolitan • Ellis Island Casino & Brewery • South Point Hotel These are all great options if you’re looking for a highly userrated casino or if you’re not picky about what casino games you play. However, if you’re looking for a more particular experience, we’ve broken it down to recommended casinos for the most popular casino games.

Best Poker rooms Got a good poker face and looking for a place to use it? Try these casinos: • Bellagio • Venetian • Caesars Palace • Aria • Wynn • Rio • The Mirage • MGM Grand • Binion’s Gambling Hall and Hotel • The Orleans Best Slots Prefer to test your luck on the slot machines? Take a seat at: • Aria • Venetian • Golden Nugget • Luxor • El Cortez • Mandalay Bay • Bellagio • MGM Grand • Treasure Island • Harrah’s

Superior Portable Spirit Wash Plant Superior Industries' Portable Spirit Wash Plant features the 6x20 Guardian Horizontal Screen and a sand production module and ultrafines recovery module with the capability of producing as many as five products.

• Material is fed to a slurry box, which liquifies it to improve the screening and stratification processes • Three-deck horizontal screen washes and sizes three products from a top, middle or bottom deck • Leftover sand is processed through one of two Spirits Wash Modules consisting of one or more Helix Cyclones followed by a dewatering screen CONEXPO Booth: C31389 ForConstructionPros.com/21108183

Volvo P5110B and P5170B Asphalt Pavers The P5110B tracked and P5170B wheeled 8-ft. asphalt pavers are powered by the Volvo D6 Tier 4 Final engine, with engine speed, torque and fuel consumption optimized for performance and fuel efficiency.

• Large-capacity hopper ensures continuous paving, while durable rolled wings help prevent material buildup and cut cleaning time • UltiMat160 screed features extensions that can adjust paving width hydraulically from 8 to 16 ft.

CONEXPO Booth: F3432 ForConstructionPros.com/21108632

Ammann ACP 300 ContiHRT Asphalt Plant The Ammann ACP 300 ContiHRT Asphalt-Mixing Plant is capable of producing mix consisting of more than 60% RAP. • The continuous plant features Ammann’s recycling technology which maximizes RAP utilization and meets the world’s most stringent emissions guidelines • Gentle pre-heating of the RAP, compared to traditional cold feed to superheated virgin aggregates, prevents thermal stress on the asphalt concrete (AC) content and ensures a highly homogenous final mix • Plant incorporates a RAP dryer for the addition of recycled materials and a separate cold recycling feed • Capable of incorporating shingles, liquid additives, fiber granulate and foam AC. It can access a recycling system for RAP utilization up to 60%; a separate cold recycling system for 30%; or a combination of the two • Continuous production capacity is 330 tph CONEXPO Booth: S5254 ForConstructionPros.com/21091313

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A NEW CHOICE

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SPECIAL REPORT: CONEXPO 2020

Gencor G Series Asphalt Plant

LeeBoy 8520B Asphalt Paver Designed with the paving professional in mind, this heavy-commercial paver is guaranteed to impress. The 8520B incorporates enhanced features including an above deck generator, increased fuel capacity and front adjustable conveyor chains that eliminate the need to lift conveyors to fine tune tension.

• 106 hp (79.0 kw) Kubota Tier 4 Final Engine • Paving widths: 8-ft. to 15-ft.

• Front access conveyor adjustments • Quick change auger assemblies • Legend heavy-duty electric screed • Enhanced hydraulic system optimizes system performance for ultimate production • Enhanced poly pad track design • 32 gallon fuel capacity CONEXPO Booth: C31258 ForConstructionPros.com/21108636

Libra Sentinel GPS Truck/Asset Management Solution The Libra Sentinel Asset Management Solution is a cloud-based GPS system designed to be your complete asset management solution. When coupled with your other Libra systems, Sentinel provides a seamless, end-to-end solution for tracking and managing assets in real-time.

• Seamless Integration with Libra Solution Suite • Mobile app or vehicle mounted options • Unparalleled accuracy CONEXPO Booth: S62919

The new Gencor G Series is the latest innovation in small portable hot mix plants providing asphalt producers and contractors with all the features of Gencor’s award winning Ultraplant in a smaller compact highly mobile plant that can be erected and operational virtually anywhere.

• The firing end of the burner extends into the dryer beyond the mix section so as not to overheat the aggregates and liquid asphalt as they are mixed together • Highly-efficient Ultraflo baghouse is coupled to the drum at a 90° angle with Gencor’s exclusive self-erecting ductwork and stack • The G Series also includes Gencor’s proven and highly portable Silo that erects in minutes and provides an easy hot mix surge alternative without sacrificing storage capacity CONEXPO Booth: S5755 ForConstructionPros.com/21108631

Wirtgen W 220 Fi & W 250 Fi Large Milling Machines

Bergkamp’s M310E Tier 4 truck-mounted slurry seal and micro surfacing paver with EMCAD (Electronic Mix Control And Diagnostic) is developed from the original M210 paver but features PTO-driven hydraulic pumps, eliminating the side engine.

• Direct-drive hydraulics • EMCAD System manages power inputs and electronically controls material outputs • EMCAD displays current and average material ratios, total material used and material application rates • EMCAD electronically self-diagnoses and displays incidation lights and diagnostics • EMCA produces on-demand and end-of-day reportsg production response times CONEXPO Booth: S6105

The new W 220 Fi and W 250 Fi large milling machines serve a wide range of applications at a maximum milling depth of 14 in. making them ideal for surface course rehabilitation and fine milling work to complete removal of the surface.

• Various drive concepts are available to ensure maximum, optimal milling performance • With an engine power of 801 hp (W 220 Fi) and 1,010 hp (W 250 Fi) respectively, the two flagship models are exceptionally powerful • In automatic mode, the Mill Assist standard assistance system provides the optimal balance between performance and operating costs. This not only improves milling performance, but also reduces diesel, water, and pick consumption, as well as CO2 emissions • Mill Assist automatically controls the twospeed Dual Shift powershift transmission.

In combination with the diesel engine, the milling drum speeds can be increased or decreased, making it suitable for a vast range of applications. At lower speeds, fuel and pick wear can be significantly reduced. At higher speeds, high milling pattern quality is ensured even in the case of high area performances CONEXPO Booth: S5419

ForConstructionPros.com/21109566

ForConstructionPros.com/21108870

Bergkamp M310E Truck-mounted Slurry Seal and Micro Surfacing Paver

ForConstructionPros.com/21108646

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WHERE TO PLAY: BET ON VEGAS CASINOS Best Blackjack Prefer to use more strategy when gambling? Try a Blackjack table at one of these casinos: • Hard Rock • Luxor • MGM Grand • Bellagio • El Cortez • New York New York • Mirage • Treasure Island • Aria • Caesars Palace Best Craps Want to leave it up to the dice? Try your luck at Craps at one of these casinos: • Main Street Station • Casino Royale • Stratosphere • Bellagio • Wynn • Sahara • Binion’s Gambling Hall and Hotel • El Cortez • Boulder Station • The Plaza Best Roulette Put it all on black or red? Check out the Roulette options at: • Mirage • Golden Gate • Tropicana • MGM Grand • El Cortez • The Flamingo • Riviera • Paris • Luxor

Drum mixers

www.tarmacinc.com

CMI Cedarrapids Magnum 250 Counterflow Drum Mixer The Magnum series upgrades include a new high efficiency drying and mixing zone, railroad bearing trunnion roller assemblies, direct drive gearmotors and drum insulation and cladding as standard • To aid a rapid installation time, the Magnum is fitted with large full width chassis support pad assemblies to distribute the load evenly CONEXPO Booth: S5030

contact tarmac at 816-220-0700 or info@tarmacinc.com

ForConstructionPros.com/21109868

www.ForConstructionPros.com/Asphalt

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FEBRUARY 2020 ASPHALT CONTRACTOR

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TECHNOLOGY MATTERS |

BY JESSICA LOMBARDO, EDITOR

Can AI Help Municipalities Improve Roads?

EN

RoadBotics delivers fast, objective and affordable road assessments using artificial intelligence and smartphones, saving asset owners time and money

U

sing technology to asses the condition of our roadways is a relatively new concept. In the past, most asset owners have relied on visual verification of their roadways in order to track repair needs. This is not only a dangerous task, it’s also time consuming and inefficient.

New technology that includes artificial intelligence (AI) not only speeds up the process of pavement assessments for asset owners, it also provides a massive amount of objective data that can be used to get real results. RoadBotics is one

such company that offers AI software to monitor and manage roadways around the world, which enables asset owners to better meet their pavement challenges.

"RoadBotics empowers cities to assess roads using AI," Todd Saulle, project manager at RoadBotics says.

"We automate inspections and generate objective, actionable data about road networks. Governments, private road owners as well as civil engineering firms can then use this to plan and prioritize maintenance needs so they can fix the right roads at the right time."

W

New technology that includes artificial intelligence (AI) not only speeds up the process of pavement assessments for asset owners, it also provides a massive amount of objective data that can be used to get real results.

EN

EN

Whether their customers are maintaining 150 center-line miles in their road networks or 1,500 miles, everyone has limited resources to maintain - let alone improve - the conditions of their

EN

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TECHNOLOGY MATTERS pavements. RoadBotics steps in and gives them the tools they need to accurately visualize the status of their assets, so that they can use data to plan maintenance accordingly.

"The current ability for government and private sector asset managers to have a strong understanding or a thorough, comprehensive understanding of the road network is very challenging" Saulle adds.

"What our data and technology really gives them is, often for the first time, a transparent view of their entire road network. With these powerful insights, they can allocate resources in a more targeted, cost-saving way than ever before."

ACCURATE, TIMELY DATA Many small municipalities have relied on their employees or even summer interns to visually inspect their roadways and provide a subjective view of the road condition. RoadBotics eliminates that.

"Right now the method tends to be manual visual inspections where you're just driving the roads, maybe walking the road, which is very time consuming, very subjective and dangerous potentially," Saulle says. "This system eliminates all of that entirely and

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“With more accurate information, asset owners can allocate resources in a more targeted, cost-saving way than before.” allows you to see all the roads you have from your desk with ratings that are provided from a third party machine learning system. It really gives owners both a comprehensive view, but also an objective view, which is hugely valuable to them."

In the past, cities might opt for a third party road assessment every few years to once a decade; however, the road condition data would often be outdated (9-12 months) by the time it was received by the road assessment company. With RoadBotics, asset owners are getting all the data at once with time stamps and images just 30 days after the road imagery is captured. This allows them to see the exact condition of the roadway and compare that to

previous data to see how that roadway has deteriorated year over year.

Traditionally, the RoadBotics team has deployed their trained drivers to drive the entirety of the network. However, the team is moving towards a selfcollection model for municipalities.

"The reason we're moving to a selfcollection model is because it's easier for cities to do it themselves," Saulle says.

"They know their roads well and they can go out and collect the data at their convenience. All they need to collect the data is a smartphone and a dashboard mount. The phones can either be rented from us or they can purchase the phones themselves."

RoadBotics then helps the municipality by putting them through a short training period with a series of videos and tutorials. The asset owner would then go out and drive the entirety of their road network based on the routes Traditionally, the RoadBotics team has deployed their trained drivers to accurately measure the condition of roadways by driving the entirety of the network. However, the team is moving towards the self-collection of data by municipalities.

www.ForConstructionPros.com/Asphalt

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purchasing more equipment from LeeBoy in the future.” –Scott Flores, Empire Parking Lot Services, California “I've been paving for 3 generations, the absolute best investment we’ve made as a company was buying a LeeBoy. If you’re thinking about buying one, stop thinking and make the best decision of your life. Thank you LeeBoy I will be spreading the word!” –Don Hopkins, D&H Paving, New Egypt, New Jersey “Best paver made in the USA. Parts always available. Designed with the paving professional in mind. LOVE IT. Other pavers to me are not an option.” –Alan Taylor, Connecticut “I’ve been in the paving business for 30 years and wouldn’t pave with anything but a LeeBoy!” –Jeff Jarzombek, USA Seal & Stripe LLC, Celebration, Florida “I have been laying asphalt for 32 years now. I come from a time when we used to lay asphalt with a ‘dragbox’. I used to dream of a machine like the LeeBoy paver. In my opinion there is no better or labor-friendly machine like the LeeBoy. From the 1000 to the 8515, the work output and quality is simply unparalleled.” –Frank Cidade, Cidade Blacktop, Massachusetts “Can’t beat a LeeBoy. They’re tanks. It feels wrong to use any other brand. They last forever and are very comfortable.” –Nick Stanley, California “The Legend Heavy-Duty Electric Screed on our 8520 produces an impeccable mat. The noticeable level of quality continues to bring us repeat business and new referrals.” –Shawn Lail, Carolina Paving, Hickory, North Carolina “My old 8515 laid 510 ton on a church lot in Hopkinsville, KY today. Ain’t even broke a sweat yet, might even stop and do a small drive on the way home. Suns up, “Sons” working.

Still asTHERE sweet today as the day l bought it.” –Randy Bennett, Bennett & Sons Paving, Kentucky “I wouldn't use any “IT'S NICE TOpaver.

SEE ARE STILL other machine except for a LeeBoy They are strong machines.

Very friendly staff when you have questions. Couldn't ask for a better machine.”

–Derek Heater, Black Rock AMERICAN & Sons Paving, Honesdale, Pennsylvania "LeeBoy’s 8520 paver is simple to operate and results in a high production paving SOME COMPANIES OUT operation. No job is too big or too small. Our 8520 produces a quality mat day in and day“Iout!"

–Dan Zuber,FROM Cunningham Paving, Cleveland, Ohio “I SWITCHED A LEEBOY switched from a LeeBoy paver only to return. ” –Robert Wadsworth, THERE MAKING EQUIPMENT THAT Sunrise Asphalt, Las Vegas, Nevada "I'm a mid-size paving contractor, and for me, there's no better machine made. The versatility of the sizes available is amazing. Even the small LeeBoy can tackle largest project with ease. I tell PAVER ONLY TO the RETURN." LONG WORKS WELL.” everyone LeeBoy isLAST the reason my AND family and I are fed.

Have been and will continue to be a customer for life." –Noah Williams, SOS Paving LLC, Wadsworth, Tennessee “We’ve been doing asphalt paving since 1975 and owned seven LeeBoy asphalt pavers––Robert from the 700 all the way to the 8816, we would – Scott Flores, Empire Parking Lot Designed Services,with the paving professional in mind, use no other asphalt paver, they are the best machines.

GO LEEBOY OR GO HOME!” –Robert George, Sunrise Asphalt, The Asphalt Company, Michigan “Great machine!!!

Lundberg, Lundberg Paving and Excavating, Orange, CA The Legend screed makes for flawless seams!!!” –Matt Las Vegas, NVvery fluent controls.” –Thomas Brockway, Pennsylvania “I just bought a LeeBoy 8616C. Very good machine, lays a great mat, powerful engine, Clements, C&C Asphalt, Inc, Scottsboro, Alabama “BEST pavers, best people. Factory tour shows true commitment to manufacturing the GOLD standard of asphalt equipment.” –Henry Welch, Valley Supply, Hagerstown, Maryland “By far the best designer paver I have ever operated. Great customer service as well.” –Noah Cardamone, Waynesboro, Virginia “LeeBoy pavers are the only way to go. Hands down the best.” –Rocky Young, Louisiana Paving Company, Minden, Louisiana “My family business has been using LeeBoy for 3 generations now! When it comes to asphalt, SMI Paving is ‘LeeBoy Proud’ always!” –Jack Smith, SMI Paving, Fort Mill, South Carolina “I’ve been running LeeBoy equipment for over 20 years. Their pavers truly are ‘designed with the paving professional in mind’. These machines hold up better than any others too!” –Kevin Piona, Mr. Blacktop, Gilroy, California “LeeBoy is the best machine I’ve ran, period, enough said!” –Warren Anderson, Cambridge, Minnesota “LeeBoy is second to none. I’m a third generation paving contractor and they’re all we use. Professional results for the professional contractor.” –Rich Cooper, Colchester, Connecticut “Love our LeeBoy paver. Wouldn’t trade it for any other brand!” –Matthew Mordis, Asp-Con Asphalt Paving, Caseyville, IL “It's nice to see that there are still some American companies out there making equipment that last long and works well. We will definitely be purchasing more equipment from LeeBoy in the future.” –Scott Flores, Empire Parking Lot Services, California “I've been paving for 3 generations, the absolute best investment we’ve made as a company was buying a LeeBoy. If you’re thinking about buying one, stop thinking and make the best decision of your life. Thank you LeeBoy I will be spreading the word!” –Don Hopkins, D&H Paving, New Egypt, New Jersey “Best paver made in the USA. Parts always available.

Designed with the paving professional in mind. LOVE IT. Other pavers to me are not an option.” –Alan Taylor, Connecticut “I’ve been in the paving business for 30 years and wouldn’t pave with anything but a LeeBoy!” –Jeff Jarzombek, USA Seal & Stripe LLC, Celebration, Florida “I have been laying asphalt for 32 years now. I come from a time when we used to lay asphalt with a ‘dragbox’. I used to dream of a machine like the LeeBoy paver. In my opinion there is no better or labor-friendly machine like the LeeBoy. From the 1000 to the 8515, the work output and quality is simply unparalleled.”

–Frank Cidade, Cidade Blacktop, Massachusetts “Can’t beat a LeeBoy. They’re tanks. It feels wrong to use any other brand. They last forever and are very comfortable.” –Nick Stanley, California “The Legend Heavy-Duty Electric Screed on our 8520 produces an impeccable mat. The noticeable level of quality continues to bring us repeat business and new referrals.” –Shawn Lail, Carolina Paving, Hickory, North Carolina “My old 8515 laid 510 ton on a church lot in Hopkinsville, KY today. Ain’t even broke a sweat yet, might even stop and do a small drive on the way home. Suns up, “Sons” working.

Still as sweet today as the day l bought it.” –Randy Bennett, Bennett & Sons Paving, Kentucky “I wouldn't use any other machine except for a LeeBoy paver. They are strong machines. Very friendly staff when you have questions. Couldn't ask for a better machine.” –Derek Heater, Black Rock & Sons Paving, Honesdale, Pennsylvania "LeeBoy’s 8520 paver is simple to operate and results in a high production paving operation. No job is too big or too small. Our 8520 produces a quality mat day in and day out!" –Dan Zuber, Cunningham Paving, Cleveland, Ohio “I switched from a LeeBoy paver only to return.” –Robert Wadsworth, Sunrise Asphalt, Las Vegas, Nevada "I'm a mid-size paving contractor, and for me, there's no better machine made. The versatility of the sizes available is amazing. Even the small LeeBoy can tackle the largest project with ease. I tell everyone LeeBoy is the reason my family and I are fed. Have been and will continue to be a customer for life." –Noah Williams, SOS Paving LLC, Tennessee “We’ve been doing asphalt paving since 1975 and owned seven LeeBoy asphalt pavers – from the 700 all the way to the 8816, we would use no other asphalt paver, they are the best machines. Designed with the paving professional in mind, GO LEEBOY OR GO HOME!” –Robert George, The Asphalt Company, Michigan “Great machine!!! The Legend screed makes for flawless seams!!!” –Matt Lundberg, Lundberg Paving and Excavating, Brockway, Pennsylvania “I just bought a LeeBoy 8616C. Very good machine, lays a great mat, powerful engine, very fluent controls.” –Thomas Clements, C&C Asphalt, Inc, Scottsboro, Alabama “BEST pavers, best people. Factory tour shows true commitment to manufacturing the GOLD standard of asphalt equipment.” –Henry Welch, Valley Supply, Hagerstown, Maryland “By far the best designer paver I have ever operated. Great customer service as well.” –Noah Cardamone, Waynesboro, Virginia “LeeBoy pavers are the only way to go. Hands down the best.” –Rocky Young, Louisiana Paving Company, Minden, Louisiana “My family business has been using LeeBoy for 3 generations now! When it comes to asphalt, SMI Paving is ‘LeeBoy Proud’ always!” –Jack Smith, SMI Paving, Fort Mill, South Carolina “I’ve been running LeeBoy equipment for over 20 years. Their pavers truly are ‘designed with the paving professional in mind’. These machines hold up better than any others too!” –Kevin Piona, Mr. Blacktop, Gilroy, California “LeeBoy is the best machine I’ve ran, period, enough said!” –Warren Anderson, Cambridge, Minnesota “LeeBoy is second to none. I’m a third generation paving contractor and they’re all we use.

Professional results for the professional contractor.” –Rich Cooper, Colchester, Connecticut “Love our LeeBoy paver. Wouldn’t trade it for any other brand!” –Matthew Mordis, Asp-Con Asphalt Paving, Caseyville, IL “It's nice to see that there are still some American companies out there making equipment that last long and works well. We will definitely be purchasing more equipment from LeeBoy in the future.” –Scott Flores, Empire Parking Lot Services, California “I've been paving for 3 generations, the absolute best investment we’ve made as a company was buying a LeeBoy. If you’re thinking about buying one, stop thinking and make the best decision of your life. Thank you LeeBoy I will be spreading the word!” –Don Hopkins, D&H Paving, New Egypt, New Jersey “Best paver made in the USA. Parts always available. Designed with the paving professional in mind. LOVE IT. Other pavers to me are not an option.” –Alan Taylor, Connecticut “I’ve been in the paving business for 30 years and wouldn’t pave with anything but a LeeBoy!” –Jeff Jarzombek, USA Seal & Stripe LLC, Celebration, Florida “I have been laying asphalt for 32 years now. I come from a time when we used to lay asphalt with a ‘dragbox’. I used to dream of a machine like the LeeBoy paver. In my opinion there is no better or labor-friendly machine like the LeeBoy. From the 1000 to the 8515, the work output and quality is simply unparalleled.” –Frank Cidade, Cidade Blacktop, Massachusetts “Can’t beat a LeeBoy. They’re tanks. It feels wrong to use any other brand. They last forever and are very comfortable.” –Nick Stanley, California “The Legend Heavy-Duty Electric Screed on our 8520 produces an impeccable mat. The noticeable level of quality continues to bring us repeat business and new referrals.” –Shawn Lail, Carolina Paving, Hickory, North Carolina “My old 8515 laid 510 ton on a church lot in Hopkinsville, KY today. Ain’t even broke a sweat yet, might even stop and do a small drive on the way home. Suns up, “Sons” working. Still as sweet today as the day l bought it.” –Randy Bennett, Bennett & Sons Paving, Kentucky “I wouldn't use any other machine except for a LeeBoy paver. They are strong machines. Very friendly staff when you have questions. Couldn't ask for a better machine.” –Derek Heater, Black Rock & Sons Paving, Honesdale, Pennsylvania "LeeBoy’s 8520 paver is simple to operate and results in a high production paving operation. No job is too big or too small. Our 8520 produces a quality mat day in and day out!"

–Dan Zuber, Cunningham Paving, Cleveland, Ohio “I switched from a LeeBoy paver only to return.” –Robert Wadsworth, Sunrise Asphalt, Las Vegas, Nevada "I'm a mid-size paving contractor, and for me, there's no better machine made. The versatility of the sizes available is amazing. Even the small LeeBoy can tackle the largest project with ease. I tell everyone LeeBoy is the reason my family and I are fed. Have been and will continue to be a customer for life." –Noah Williams, SOS Paving LLC, Tennessee “We’ve been doing asphalt paving since 1975 and owned seven LeeBoy asphalt pavers – from the 700 all the way to the 8816, we would use no other asphalt paver, they are the best machines. Designed with the paving professional in mind, GO LEEBOY OR GO HOME!” –Robert George, The Asphalt Company, Michigan “Great machine!!! The Legend screed makes for flawless seams!!!”

MARCH 10-14 LAS VEGAS –Matt Lundberg, Lundberg Paving and Excavating, Brockway, Pennsylvania “I just bought a LeeBoy 8616C. Very good machine, lays a great mat, #C31258 powerful engine, BOOTH very fluent controls.” –Thomas Clements, C&C Asphalt, Inc, Scottsboro, Alabama “BEST pavers, best people. Factory tour shows true commitment to manufacturing the GOLD standard of asphalt equipment.” –Henry Welch, Valley Supply, Hagerstown, Maryland “By far the best designer paver I have ever operated. Great customer service as well.” –Noah Cardamone, Waynesboro, Virginia “LeeBoy pavers are the only way to go.

Hands down the best.” –Rocky Young, Louisiana Paving Company, Minden, Louisiana “My family business has been using LeeBoy for 3 generations

TRUST LEEBOY

TRUST LEEBOY. AS DEPENDABLE AS YOUR DAY IS LONG.

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TECHNOLOGY MATTERS

that RoadBotics has provided for them.

"We have a very comprehensive routing and navigation system that we have in-house," Saulle adds. "This gives turn by turn directions so that the entirety of the road network can be collected in the most efficient way possible."

Saulle says the data collection of a 100-mile road network can be completed in just a few days as opposed to a few months with traditional methods.

Once the data is collected and analyzed, asset owners are given login information for the RoadBotics software platform called RoadWay. They are also offered a tutorial with the RoadBotics team to walk through the RoadWay platform so they understand the data they are seeing.

"We're able to show them not just how the data is presented, but also the other tools that are there,” Saulle says. “Asset owners are able to toggle between good roads and bad roads and can focus on just the areas that really need improvement.

We also show them where they can find trouble areas within otherwise good segments of road. This helps them pinpoint areas they may have otherwise missed along a section of good roadway. We're

always available if they have questions and we try to keep an open line of communication with them after delivery as well."

ACTIONABLE DATA With all this data at their fingertips, asset owners are better able to present the condition of their roadways to those that make the financial decisions about road funding. This is a huge opportunity for cities with limited resources.

"Asset owners can take the data and show all the work that they've done in the last couple years as well as the work that's yet to be done and that can help justify budget," Saulle says.

"North Huntingdon, which is just outside of Pittsburgh, was able to get another $500,000 in their budget for fixing roads as a result of showing this data. They were able to diminish their roads rated poor at a 4 or 5 by about 10% in a three year period. This happened because they were able to create a thorough pavement program database that removes the guesswork and wrong data generally associated with pavement assets and they knew exactly where to pinpoint their efforts and justify their monetary needs."

With all this data at their fingertips, asset owners are better able to present the condition of their roadways to those that make the financial decisions about road funding. This is a huge opportunity for cities with limited resources.

The City of Savannah, GA is another success story for this technology.

Previously, the City of Savannah recruited, trained and managed six interns to assess their roads. They were able to cover one-third of the city’s roads each year, so it took the city three years to complete one road condition assessment. Because of the complexity of the task, interns rated the roads differently regardless of the training that was provided. Despite their best efforts, using 18 different interns to assess roads over three years also led to highly subjective assessments. The city had difficulties making network-wide pavement decisions with this data and the long data-collection cycle often forced city officials to use outdated information when planning for road paving and maintenance activities.

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ASPHALT CONTRACTOR FEBRUARY 2020

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TECHNOLOGY MATTERS The intern approach resulted in a total cost of approximately $130,000 over three years.

In 2018, the city contacted RoadBotics. The city’s roads were evaluated in two phases - the first 350 miles were completed in under three months in 2018. The second half of the project was completed in early 2019. The City of Savannah used RoadBotics’ objective data to make informed decisions on their pavement maintenance and prioritize the use of limited infrastructure funds.

RoadBotics provided a comprehensive assessment of Savannah’s entire 700-mile road network for the city at a price of $50,000. The city saved over $80,000 and received a higher quality product in a shorter amount of time. The cost-savings on the road assessment provides the city with more resources to focus on maintenance of roadway infrastructure.

BENEFITS OUTWEIGH COSTS The cost to deploy RoadBotics and receive the objective data varies depending on the size and complexity of the road network, but having access to this data can be priceless for municipalities.

"The thing that our customers value

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the most is having any image available for their assets," Saulle says. "It really gives them an extra leg up when it comes to resident complaints and constituent service type work. We've had a couple instances where there was a liability issue and question about a city ruining a driveway during paving. The city was able to go back and see that the issue had occurred well before the paving."

RoadBotics offers an annual subscription model for their software platform, RoadWay, and many asset owners are opting for this service.

"Asset owners want to make sure that whoever they're contracting with right now to complete paving work is actually doing a good job," Saulle says. "If in three years a brand new subdivision that was just paved is blowing up, then somebody did something terribly wrong, so RoadBotics offers a great way to hold people accountable for their work.

If your roads should be lasting you 10 years and you see deterioration within three, you can see that before it's too late, potentially."

Yearly road assessments are also especially helpful in colder climates where roads undergo freeze-thaw cycles.

In these areas, many cities are opting for multi-year agreements so they can take

a look at how pavements in particular areas are holding up and make better educated decisions for their maintenance schedule the following year.

"Public Works directors are some of the most overworked and underappreciated people out there," Saulle adds. "If they can see the road condition from just this past summer, that's really useful to them. They can then add relevant pictures from the RoadWay platform to an RFP of a road that needs work and that's something they really could never do previously."

For more information on road assessment technology, visit ForConstructionPros. com/12315909

Yearly road assessments are especially helpful in colder climates where roads undergo freeze-thaw cycles. In these areas, many cities are opting for multi-year agreements so they can take a look at how pavements in particular areas are holding up and make better educated decisions for their maintenance schedule the following year.

ASPHALT CONTRACTOR FEBRUARY 2020 www.ForConstructionPros.com/Asphalt

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TECHNOLOGY: CONEXPO 2020 |

BY JESSICA LOMBARDO, EDITOR

S T

TRAINING is the Key to Technology

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Adoption in the Asphalt Industry Tim Kowalski with Wirtgen America will discuss intelligent compaction and thermal imaging during his CONEXPO session, but he says all the technology in the world won’t help poor training

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E

very asphalt contractor has been on a project that requires them to use some form of new technology they aren't familiar with in order to meet the job specifications. Most workers will manage to get through the project doing what is required of them and move on to the next job, forgetting how the technology helped improve their daily operations and ultimately the performance of the job.

This is the primary issue with technology adoption in the

Thermal imaging devices use either a scanner or camera to measure and detect temperature differences that could be caused by segregation.

construction industry. Workers won't use new options available to them unless they are forced to and then they regress back to what they've always done. Unfortunately, this is causing the industry to fall behind and contractors to miss out on new work.

ASPHALT CONTRACTOR FEBRUARY 2020 www.ForConstructionPros.com/Asphalt

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TECHNOLOGY: TECHNOLOGY MATTERS CONEXPO 2020

Those companies who have been early adopters of technology however, are well-positioned to excel and therefore win more bids in the long run.

"The key to technology adoption for long-term use is getting them trained properly on how to use it correctly," Tim Kowalski, HAMM application support manager at Wirtgen America says. "Those that end up attending training opportunities finally understand and realize that the technology is a real benefit for them. Whether it be intelligent compaction or thermal imaging, after they use it they start becoming a super user. They realize that it's actually helping them do a better job."

At CONEXPO 2020 in Las Vegas, Kowalski will present contractors with a few key elements to using technology in asphalt paving. Here's a look at what attendees will learn.

TECHNOLOGY DOESN'T HAVE TO BE SCARY While technology is sure to change the way asphalt contractors complete their daily tasks, it doesn't have to be perceived as a negative change.

"The biggest problem I see in the industry with technology is that contractors are afraid of it," Kowalski says.

"Most of the time when they start using it, it's only because the state required certain things and they are forced to use it."

However, once properly trained, there's no stopping where they'll take this technology.

One technology contractors have become familiar with mostly through state mandate is intelligent compaction (IC). IC works by using modern vibratory rollers equipped with an integrated measurement system, an onboard computer reporting system, Global Positioning System (GPS) based mapping and optional feedback control.

IC rollers facilitate real-time compaction monitoring and timely adjustments to the compaction process by integrating measurement, documentation and control systems.

While the technology has been widely used in the industry, it's still not widely accepted on a day to day basis by many contractors and manufacturers want to change that.

"We want the software to be more user friendly and adaptable to download information," Kowalski says. "Manufacturers are working on the next generation of IC based on what people are asking for, what states are looking for,

etc. We want to know how we can make it simpler and easier to use. We're all developing something to update from the versions we have now."

Another emerging technology trend asphalt contractors need to continue to familiarize themselves with is the IR bar or a paver-mounted thermal profiling scanner. These devices use either a scanner or camera to measure and detect temperature differences that could be caused by segregation.

"These devices actually show you where you might have possible segregation issues based on temperature differences across the mat," Kowalski says. "Whether it's identifying it as a trucking issue or a loading issue into the paver, or maybe possibly something with the paver and how the material is flowing through the paver. If you have just individual spots, and they're consistent, it's probably a truck dump that's the issue and we need to look at how we're going to resolve that. If it's just a streak in the mat, then maybe it's something to do with the paver and we can identify it that way.

"Once we can identify those issues, we can fix them while we're doing the work," Kowalski continues. "Before if you didn't have that, you didn't know the problems until after you've finished paving and then a couple years later, you see all these issues come up."

By identifying those kind of issues and correcting them n real time, contractors can have a more consistent temperature map and a more consistent density. This leads to longer lasting roads and better rideability.

Not only will using these technologies improve the roadways you pave, they will also help contractors obtain more state work and achieve higher bonus incentives.

While technology is sure to change the way asphalt contractors complete their daily tasks, it doesn’t have to be perceived as a negative change.

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ASPHALT CONTRACTOR FEBRUARY 2020 www.ForConstructionPros.com/Asphalt

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TECHNOLOGY: CONEXPO 2020

"There are more states that are looking at doing bonuses, and when there's a bonus, crews are more conscious of doing a much better job and having the right tools to do that job helps them get that bonus. Whether it be rideability or density-based," Kowalski says.

TRAINING MAKES THE DIFFERENCE While the reasons to use new technology are clear, many contractors are still hesitant to deploy it every day on their jobsites and that's mainly due to lack of training.

"Customers think that they’ll just add technology to their equipment and it will work, but that's not how that happens, Not with intelligent compaction and not with thermal imaging," Kowalski says. "There's definitely a training portion that needs to be done and we can't stress it enough.

A lot of times people think, well, I'll train this month, but I'm not going to use the technology for three months

38

down the road. That's not how that works because people are going to forget 90% of what you just told them and then you have to go back and do the training again.

"That's why we like to do just in time training as it needed so it's fresh in their mind when they use it," Kowalski adds. "If they are trained properly, they aren't just going to use it on places or locations that it's required, but they are going to use it on more locations because now they're a super user and they can do a much better job on all their projects" And with the new technology that's coming out, Kowalski says it's also important to hire the right people with the right mind-set for change.

"The contractor needs to realize they need more educated people to understand the technology so that it becomes easier for them to use," he says. "If you have an operator that's 65 years old and if they don't want to learn it, they're not going to learn it.

When you get a younger person in there

that understands the technology and realizes that it can help them become a better operator, now they're going to want to use it. Just like anything else, if you keep using it, eventually you're not going to want to do anything without it."

Once contractors learn the technology properly, Kowalski says there's no returning to the old days and that not only benefits the life of the roadway, but the future success of the company as well.

"There are some contractors that are not going to use new technology unless it's mandated to use it," Kowalski says.

"Then there are other contractors that are using it before the state mandate so they can get ahead of the game and understand it, using it to its full potential. Those are the ones that are going to be the leaders in the industry, for just about anything when it comes to technology. They're the ones that figured out that if you don't want to get on the technology bandwagon, you're going to be behind everyone else. A lot of a lot of contractors that are already using it before the states are requiring it, they have a good handle on it and that see the advantages. What's more, is that they're not just using it on state work where it's required, they're using it on other projects and also as a training tool to help their crews become better at what they do for the long run."

If you're traveling to Las Vegas for CONEXPO, be sure to attend Kowalski's education session: “Using New Technologies in Asphalt Paving.”

This session is scheduled for Tuesday, March 10 from 3 p.m. to - 4 p.m. More information can be found at www. conexpoconagg.com.

For more information on intelligent compaction, visit ForConstructionPros. com/21098455

ASPHALT CONTRACTOR FEBRUARY 2020 www.ForConstructionPros.com/Asphalt

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PRODUCTION NOTES |

BY JESSICA LOMBARDO, EDITOR

Palmetto Upgrades to Better Serve

Community

New baghouse helps reduce emissions, helping the asphalt company increase efficiencies and become a better neighbor

P

almetto Corporation, located in South Carolina, is no stranger to adapting their business in order to grow. Established in 1987,

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Palmetto is one of the South Carolina's busiest asphalt contractors and suppliers.

Quality asphalt production and application is the biggest organizational core competency, but Palmetto also provides a full suite of turnkey site work solutions – trucking, reclamation/ erosion control, earthwork, crushing, milling, concrete and surveying.

The company started out with 10 trucks and a single 350-tph plant in Conway, SC. In 1999, they added a second 350-tph facility in Florence to meet

During Winter maintenance in 2018 the company installed a new dryer drum to replace the previously worn unit. They chose a Meeker Freedom Air Baghouse for this location.

the area's growing demand. This part of the state had seen a huge upswing in development to accommodate the steady rise in population. The company adapted to meet those demands with a workforce that has increased almost

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1/21/20 9:52 AM

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PRODUCTION NOTES This location features six silos, two scale decks and has a storage capacity of approximately 1,500 tons. On an annual basis, this location averages 185 days of 24 hour production with the remaining shifts being typical day or night production.

The Conway plant produces 15 different SCDOT Specified mixes and six different NCDOT Specified mixes. They also produce HMA, WMA and use RAP in 19 of the 21 different mix types. In all, this plant produces 300,000 tons each year.

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yearly. Today, the company has over 600 employees and operates a fleet of nearly 100 trucks.

With the first two plants, Palmetto's annual volume was approximately 400,000 tons in support of services that include some work for private contractors, but is focused primarily on paving for DOT projects.

The company generally tries to work within a 60-mile radius around each of its plants — initially those in Conway and Florence. Today, the company owns four asphalt plants in South Carolina, which allows them to manufacture over 1 million tons of their own hot mix asphalt at a lower cost for their customers and helps them serve a greater geographic area.

Their oldest plant, located in Conway, SC, a FabSpec Drum Plant, has been in its current location in since 1991 and has recently undergone significant upgrades to better serve their customers and the community.

NEW BAGHOUSE MAKE A DIFFERENCE The plant features six silos, two scale decks and has a storage capacity of approximately 1,500 tons. On an annual basis, this location averages 185 days of 24 hour production with the remaining shifts being typical day or night production. They produce 15 different SCDOT Specified mixes and six different NCDOT Specified mixes. They also produce HMA, WMA and use RAP in 19 of the 21 different mix types. In all, this plant produces 300,000 tons each year.

During Winter maintenance in 2018 the company installed a new dryer drum to replace the previously worn

www.ForConstructionPros.com/Asphalt

1/21/20 9:52 AM

unit. They chose a Meeker Freedom Air Baghouse for this location.

"The Freedom Air Baghouse is a reverse air unit which means we do not need a massive air compressor for operations," Eric Faulk, chief operating officer at Palmetto says. "Because of that, we are able to run higher production rate."

With this baghouse, hot air containing fine particles enter the center plenum. The center plenum is tapered so as air moves from one end to the other, the air evenly gets distributed across all bags. The center plenum has plasma cut holes across the sidewalls to help with the distribution of air on the bags.

On top of the baghouse are multiple stainless steel turrets that turn like a carousel. The turrets are used to clean the bags. As dust collects on the bags, clean air passes through and the dust collects on the outside of the bags. When the turret moves to the row it wants to

clean, the pressure rises as fresh outside air flows from the turret to a row of bags and the reverse air blows down the bags from the inside out (high pressure air flows to low pressure).

Meeker also uses variable frequency drives (VFDs) on the turrets to allow the turrets to move faster or slower depending upon dust loading on the bags. The turrets can pulse the bags in various configurations. For example, the turrets can pulse in a line 1, 2, and 3 or they can pulse 3, 1, 2 and the system allows to pulse only half of the bags on a turret. This allows for even flow of dust from the baghouse back to the drum or batch processes.

If a turret ever goes offline, the baghouse can still operate. The operator simply takes the selected turret off-line and the plant continues. This is another unique feature of the Meeker Freedom baghouse.

All of this was impressive to

Palmetto, who immediately saw benefits of the installation over the previous FabSpec Baghouse unit.

"When it comes to maintenance of the Meeker baghouse, because it is a reverse air, we do not have to bother with blow bars and Venturis when doing maintenance to the bags which saves time and money." Faulk says.

The company also saw benefits to their community with this new install.

"Producing with less emissions is a huge benefit to us and the communities we serve," Faulk says. "The new baghouse is extremely efficient and not only met the SCDHEC requirements but has greatly exceeded those allowable limits."

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WE LISTEN TO YOUR COMPLEX NEEDS We’re large enough to understand that every producer’s needs are different. Small enough to personally answer your call, listen to your needs and help with sound solutions, like customizing just the right asphalt plant to meet your specific production goals, or troubleshooting when surprises happen. Tell us how we can help.

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PLANT PERFORMANCE: CONEXPO 2020 |

BY JESSICA LOMBARDO, EDITOR

*C

M an

I

D A Au

THREE KEYS to Asphalt Plant Performance At CONEXPO 2020, Ron Sines will help contractors better understand how they can properly monitor key performance metrics at their asphalt plant to improve performance and profitability 50

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N

ot only are asphalt plants complex mechanical systems, a breakdown or failure can be detrimental to the profitability of your business. In order to get optimum performance from the plant, it is imperative to properly monitor key performance metrics.

In his session at CONEXPO 2020, Ron Sines, vice president of asphalt performance at CRH Americas Materials, Inc. will explain which performance metrics are most important and show producers how to use them to ensure

A W

"These metrics are going to have a direct impact on the cost of producing a ton of asphalt material," Sines says.

"If you maximize RAP, maximize binder replacement, minimize waste and minimize energy, your cost to produce a ton of asphalt is going to go down which should make your business more profitable."

Li In D

Photo Credit: Astec, Inc.

top plant performance. Here are the three main performance metrics Sines says asphalt producers need to be aware of and track for a more profitable plant.

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PLANT PRODUCTION PERFORMANCE: NOTES CONEXPO 2020

1. ENERGY Energy costs are driving most asphalt plant operations today and many producers are looking to reduce costs in any way they can. One of the best ways to cope with volatile energy costs is to reduce consumption at the plant.

"It's important for asphalt producers to understand exactly how much energy they're using to produce a ton of asphalt because there are things that they can do to control the amount of energy they're using which ultimately has an impact on cost," Sines says.

Not only will monitoring energy usage help control costs, it can also help you understand your plant and be aware of issues that may pop up.

"If you're using more energy than you should, that's certainly an indication that your burner may be out of tune," Sines says. "It could also be an indication that the management of moisture in your aggregate stockpiles isn't what it should be. If your energy usage is going up, you may have additional moisture in your aggregate stockpiles. For every 1% of moisture that you can remove from your aggregate before it goes in to the plant, that is going to have about a 12% impact on plant productivity.

"So if at your 400 ton per hour plant you have 2% more moisture in your aggregates than you should have because you haven't properly sloped and drained your stockpile or maybe your loader operator isn't managing the material that he's bringing out of the stockpile correctly, your 400 ton per hour plant is now only going to be able to produce it around 350 tons an hour and that's a problem."

2. RECYCLED MATERIAL USAGE The use of recycled asphalt pavement (RAP) at your plant is also something

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plant owners and operators should keep track of. Whether it's proper RAP management or plant capabilities, knowing how much good RAP you're using will continue to be an important asphalt plant metric.

"The way that I prefer looking at RAP utilization is against what the specifications allow us to do, as well as what my plant is capable of doing," Sines says. "There are a number of older plants out there that are not able to use RAP to the extent of what the specifications may allow and I think it's important to understand what that difference is, because that's going to be a capital expense. Being able to quantify what that difference is and then determine whether or not the capital expense of upgrading your plant warrants going after that additional RAP that you could use is important."

Another component of looking at RAP usage is understanding how much binder you're trying to replace in the mixture.

"You can do things with your RAP in terms of how it's processed, how stockpiles are managed, etc. to ensure you're getting the maximum quantity of binder out of your RAP," Sines adds.

"I'd much rather use 20% of a RAP that has 5.2% liquid content as opposed to a RAP that has 4.2% because I'm going to be saving more binder. Ultimately, you can track that and see how you're performing against what your target is in terms of binder replacement and what your actual binder replacement is."

3. WASTE The final key metric Sines says asphalt producers should focus on is the amount of waste that their plant is producing.

It's important to schedule production and operate the plant to limit the amount of waste generated at the plant.

"Waste is going to have a direct impact on energy because you're essentially heating materials that are not ever selling and you're also putting liquid asphalt on materials that you're not selling," Sines says. "Knowing how

much waste you're producing and trying to get that to the minimum amount possible while still producing a quality mix is ultimately the goal."

Reductions in raw materials used (whether it is aggregate and asphalt, burner fuel or equipment fuel) means plant owners have to buy less to produce the same amount of material. These savings should go directly to the bottom line for any producer. Accurate orders, limiting the number of mix changes and knowing plant timing will all reduce waste generated every day you produce asphalt mixtures.

Ultimately, Sines says monitoring these metrics will not only positively impact your bottom line, they will also make your business a better steward of the environment.

"These metrics are going to have a direct impact on the cost of producing a ton of asphalt material," Sines says. "If you maximize RAP, maximize binder replacement, minimize waste and minimize energy, your cost to produce a ton of asphalt is going to go down which should make your business more profitable.

"The other side of the coin to monitoring these metrics is from the sustainability side. If you're using less energy to produce a ton of material, recycling more, consuming less virgin aggregate and less liquid asphalt because you're using RAP, those are all good things. They're good from a profitability standpoint, but they're also good for the environment as a whole."

To learn more, attend the “Key Metrics for Monitoring Asphalt Plant Performance� education session at CONEXPO-CON/AGG 2020 in Las Vegas. This session is scheduled for Tuesday, March 10 from 9:30 a.m to 10:30 a.m. More information can be found at www.conexpoconagg.com.

For more information on plant performance, visit ForConstructionPros. com/21035622

www.ForConstructionPros.com/Asphalt

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Weiler equipment is sold and serviced exclusively at Caterpillar dealers throughout North America.

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1/21/20 9:57 AM

JOBSITE INNOVATIONS |

BY JESSICA LOMBARDO, EDITOR

Precision & Planning Key to Racetrack Paving

SUCCESS

Granite Construction completes complex asphalt paving project at Barber Motorsports Park in just 41 days

C

ontractors who have worked on a racetrack project know there is no shortage of challenges when paving these surfaces. When motor sport enthusiasts are traveling the pavement at high speeds, there is no room for error.

The finished product must be flawless.

The Desert Cities Region of Granite Construction knows this to be true after repaving Barber Motorsports Park in Birmingham, AL. The existing pavement on the 2.38-mile road course was in desperate need of repair. The crew

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took on the challenge to complete the work but with no shortage of obstacles that needed to be overcome.

PLANNING FOR A WIN Granite was invited to bid on the project based on their knowledge and experience with this type of work. As one of the four firms to bid the project, Granite was awarded the project on March 1, 2019. Due to the complex nature of paving racetracks, extensive planning is required prior to the start of the project and the Barber Motorsports Park involved four months of planning.

Before work began, Granite met with several local vendors in the area to plan out the details of the project.

When the park closed on July 21, 2019, the crew knew it was required that

Top: The 16-year-old pavement on the 2.38 mile Barber Motorsports Racetack was in desperate need of repair and the Granite Desert Cities crew stepped up to complete the work, but with no shortage of obstacles ahead of them.

Bottom: The crew opted to slow down the paving speed to just 20-ft. per minute in order to maintain a consistent speed and prevent stopping to wait for mix or so the rollers could keep up.

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1/21/20 10:07 AM

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JOBSITE INNOVATIONS

the entire scope of work be completed by the first week of September, which provided the team only 41 working days from start to finish.

“We met with the project owners, consultants, asphalt plant, subcontractors and several vendors five weeks before work was scheduled to begin,” Alejandro Salazar, Granite project manager says. “We needed to make certain everything was carefully planned out because if one operation failed, the entire project could be jeopardized.”

After logistics were in place and the track was closed, demolition began.

Crews worked on the removal of four inches of asphalt material using a Crews got to work removing 4-in. of asphalt material using a Wirtgen W 210 Fi. Over 17,000 tons of material was removed down 4-in. in order to accommodate the new surface.

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www.ForConstructionPros.com/Asphalt

1/21/20 10:08 AM

Wirtgen W 210 Fi. More than 17,000 tons of material was removed down to four inches to accommodate the new surface.

Prior to the commencement of paving, the crew encountered soft spots in the subgrade which needed to be addressed.

However, since the schedule for completion was extremely tight, the team worked with the project owners to identify an alternative that would allow for project completions within the tight time frame.

“The project owners were able to fix the subgrade while we began paving other areas on the track,” Alejandro Salazar said. “Everything we did relied upon ways for us to work together to keep the project moving forward.”

RACE TO PERFECTION Racetrack paving cannot be performed using the same processes and procedures as standard road paving. Extreme care

and consideration need to be given to any joints that may be created by starts and stops in the paving process. In the case of this project, no starts and stops were allowed during paving, which required much logistical preparation for the crew.

"On a standard roadway, you

typically adjust your paving pattern to minimize traffic impact and maximize productions," Sibel Salazar, Granite project engineer says. "Stopping the paver, however, can create a bump. The fast speed of which a race car travels requires the smoothest surface possible. Per the

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FEBRUARY 2020 ASPHALT CONTRACTOR

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JOBSITE INNOVATIONS

specification, it was mandatory that the full lap of paving was completed with no stops to avoid any bumps that may be created.�

On this 45-ft. wide track, the crew decided to pave in three continuous laps, starting with the inner, middle and then outer. The crew completed each 2.38-mile lap without stopping and then move to the next lap. They did this for each of the three layers of asphalt for a total of nine continuous laps. To accomplish this, the specifications required the paving speed to be 20 ft. per minute in order to maintain a consistent speed. “We developed many paving plans and had several backups in place to ensure all trucks arrived on time so we wouldn't have to stop the paver," Alejandro Salazar says. "The asphalt plant was tasked with producing the mix quantities to exactly match our production needs. This guaranteed the mix temperatures were optimal for placement and compaction."

The job required three different mix types:

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1. Due to groundwater drainage issues, three corners of the track were first paved with 3-in. of porous, opengraded material to prevent water from collecting under the track. In these areas, 2,400 tons of mix was used.

2. Next, 7,800 tons of a PG 67-22

With just 41 days to complete the project, the crew was already under a strict schedule and of course the Alabama weather did not make things any easier for them.

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1/21/20 10:08 AM

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JOBSITE INNOVATIONS

1/2-in. nominal maximum aggregate size (NMAS) mix was put down, approximately 2 in. thick for the base.

3. Finally, a PG 82-22 3/8-in. NMAS polymer modified mix was put down in two lifts for the leveling and surface courses. Each course was 1-1/2-in. thick, 5,740 tons per lift.

The old track was four inches thick and the new track was laid at five inches

thick. Advanced Material Services (AMS), a pavement engineering and consultation service specializing in racetrack pavements, has specified this type of surface mix on racetracks around the country as it provides a balance of durability, traction and smoothness for both the project owners and end users.

While the mix is great for the end user, it causes more difficulties for

paving contractors as this mix is very stiff for paving. Unlike roadway paving, the crew was also not permitted to walk on the mat behind the paver, adding an additional challenge to the work.

To complete the paving, compaction, and smoothness, the following equipment was used: • Weiler 2850 Material Transfer Vehicle • Caterpillar AP1055 F Asphalt Paver

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On this 45-ft. wide track, the crew decided to pave in three continuous laps, starting with the inner, middle and then outer. The crew completed each 2.38-mile lap without stopping and then move to the next lap.

• • • • •

Sakai SW850ND Roller Sakai R2H Roller Sakai SW 654ND Roller Sakai SW 774ND Roller HAMM HD90 V for Edge Rolling Based on successful working relationships with the Sakai team and equipment, the Granite crew selected to partner with Sakai for the compaction and smoothness scope of work.

"The team at Sakai helped us build other race tracks recently and their engineers are great to work with," Alejandro Salazar says. "We rented the compaction equipment from them and they were available any time to discuss the challenges of the project. They provided different ideas when it came to compaction and smoothness and their team helped us fine tune our patterns."

The crew also had a backup piece of equipment ready in case there were any issues with the primary machines they were using.

paving and flew their 28-person crew across the country to work on the project. They did this in order to ensure they could trust the people they had on the ground to complete the work to the high standards required on this strict and challenging project.

"Yes, the project was challenging,” Sibel Salazar said. “Despite of all the

challenges, Granite completed a quality project safely and on-time while exceeding Barber Motorsport Park owner`s expectations.”

For more information on racetrack paving, visit ForConstructionPros. com/20975456

CHALLENGES BEFORE CHECKERED FLAG With just 41 days to complete the project, the crew was already under a strict schedule. The condition of the weather did not make things any easier for them.

"The weather changes very quickly in Alabama and we had to monitor it closely since we couldn't stop paving once we started," Sibel Salazar says.

"There were several days we had to cancel work due to the weather forecast and find alternate days to make up that time overnight and on weekends."

With the Desert Cities Granite team who completed the work based in Indio, CA and the project located in Birmingham, AL, logistics and uncooperative weather were just a few challenges for the team. In order to ensure the job was completed correctly, Granite dedicated their team that specializes in racetrack

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JOBSITE: CONEXPO 2020 |

BY JESSICA LOMBARDO, EDITOR

,...,., Ho

HOW TO PAVE Smarter with Grade & Slope Technology At CONEXPO 2020, Todd Mansell will help contractors better understand this helpful tool for asphalt paving

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G

rade and slope technology is not new to the industry. In fact, it's been available to paving contractors for several years. What is relatively new however is the adoption of the technology to achieve superior paving results. Contractors who aren't using this technology on their pavers are going to start missing out on job opportunities and higher bonus incentives.

Because of the accuracy and consistency, properly configured automatic grade and slope systems can earn contractors maximum incentives, or bonus money for ride quality (smoothness) in states where incentives are offered.

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In his session at CONEXPO 2020 in Las Vegas, Todd Mansell, product application specialist at Caterpillar, Inc. will help attendees better understand grade and slope (G&S) technology and how it can benefit their business. Here's a preview of what attendees will learn at his session and how grade and slope technology can benefit paving contractors.

WHAT IS GRADE & SLOPE TECHNOLOGY? Automatic G&S provides automated control over the screed tow point cylinders in order to maintain precise mat thickness and percent slope or crossfall during paving operations.

These control systems for asphalt pavers provide paving companies with a broad

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range of benefits including: • Improved grade and slope accuracy • Increased productivity • Assistance with smooth transitions • Improved mat thickness and yield control • Decreased costs related to grade and slope re-work In addition, these systems decrease operator fatigue related to manually controlling grade and slope.

"Mat thickness and slope are often controlled manually by screed operators,” Mansell says. “However, a properly setup automatic system not only makes the job of the screed operator much easier, but greatly improves accuracy of mat thickness and slope when the sensors and averaging beams (ski’s) are properly setup for the particular job conditions.”

Contractors not properly using G&S technology could be missing out on opportunities for higher bonus incentives. Because of the accuracy and consistency, properly configured automatic grade and slope systems can earn contractors maximum incentives, or bonus money for ride quality (smoothness) in states where incentives are offered.

The technology can also assist businesses with their labor issue by reducing the number of skilled workers needed on a paving job.

"It is common practice to have right and left side screed operators on a paving project. When using G&S, often only one screed operator is needed where two may otherwise be required," Mansell says. "On most highway jobs, for example, there is little need for two screed operators when automatic grade and slope systems are properly setup and utilized. Manual control of the screed requires a high level of attention at all times and automatic G&S control eliminates some of the “human factor” of fatigue and estimation or “eyeball” adjustments as opposed to the machine measuring precisely and adjusting."

And manual adjustments are what lead to quantity overruns which can kill your profits.

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JOBSITE: CONEXPO 2020

"Automatic grade and slope technology can react to certain surface conditions faster and more accurately than a human being can," Mansell says.

"It improves quality when it comes to smoothness and dealing with yield and mix quantities. This is especially important when you have to hit a certain amount of yield.

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"At a minimum, depending on state specifications, automatic grade and slope can help keep the contractor out of penalty for poor ride and be more accurate on thickness, which directly relates to the quantity, or tons of hot mix placed," Mansell adds. "Every tenth of an inch in thickness can add up to several tons and a lot of cost if thickness is not precisely controlled."

CONTRACTORS NOT BENEFITING FROM GRADE & SLOPE While most contractors understand the benefits of G&S technology, many are not using it in their daily operations and even fewer are maximizing the benefits of these systems through proper operation. That's where training comes in to place.

"Contractors are not generally resisting using this technology, they have been using it for many years, however, most have never been properly trained on how these systems work," Mansell says. "For this reason, contractors often get frustrated and have more success manually controlling the screed for thickness and slope during paving.

Once they gain an understanding of how automatic grade and slope systems work, the contractor can easily configure the setup each day, or for each job, to achieve the results they want."

Sensor position is one important factor in achieving success with G&S systems and many contractors overlook this important step or maybe don't even know how to fix it.

“One of the single biggest things that operators don’t understand about automatic grade and slope control systems is the importance of properly positioning the grade sensors, contact ski and sonic averaging ski,” Mansell says. “Sensor position is critical to the end result and if these sensors are not properly positioned, you are going to have a rough ride rather than a smooth one. If you are

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JOBSITE: CONEXPO 2020

matching lanes, the only way to get a perfect joint match is to have the sensors in the right place, otherwise you’ll end up with an uneven lane match.”

Poor ride from improper sensor position is what often leads to the automatic grade and slope system being tossed out behind the shop because the crew blames the system, he adds. In reality, it is just a lack of training on proper setup.

"When someone doesn’t understand how something works or they have had a bad experience, they are not going to use it. They get frustrated and don’t use it any more," Mansell says. "Training changes that."

70

To learn how to feel comfortable setting up and using automatic grade and slope systems over a wide range of applications to achieve exceptional results, attend the “Taking the Voodoo out of Automatic Grade & Slope Control” education session at CONEXPO-CON/AGG 2020 in Las Vegas. This session is scheduled for Thursday, March 12, from 3:00 p.m. to 4:00 p.m. More information can be found at www.conexpoconagg.com.

"The purpose of this training session is to show how these systems works so the contractor can confidently set the system up to achieve the particular job

results they are looking to achieve," Mansell says. "With training and experience, contractors understand how it works and love it because it makes their job so much easier. They are not physically and mentally adjusting the screed and watching what’s coming up which completely changes the complexity of their day."

For more information on technology for asphalt paving, visit ForConstructionPros. com/21088550

ASPHALT CONTRACTOR FEBRUARY 2020 www.ForConstructionPros.com/Asphalt

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PRESERVATION UPDATE

Logistics Prove Challenging for

ISLAND PAVEME PRESERVATION P

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MENT N PROJECT

VSS International, Inc. completed pavement repair and a Type II slurry seal inside San Juan Island National Historic Park

W

hen you're tasked with completing construction work on an island, planning is key to project success. This was particularly true for the crew at VSS International who recently completed asphalt patching and installation of a Type II slurry seal on San Juan Island, WA. The San Juan Islands are an important tourist destination, with sea kayaking and orca whale-watching (by boat or air tours) being two of the primary attractions. At mean high tide, the archipelago comprises over 400 islands and rocks and over 478 miles of shoreline. And since there are no bridges to the San Juan Islands, all travel from the mainland is either by water or by air.

The section of roadway in need of repair inside the San Juan Island National Historic Park, exhibited oxidation, raveling and cracking on the pavement surface, as well as isolated structural failures. The area to receive treatment was 1.5 miles long and the construction schedule had to be in place and approved weeks before work began to allow visitors and workers ample notice of any street closures or delays.

In the busy summer months, there is a shortage of reservations to get access to the ferry – especially for large construction equipment. This means VSS needed to get started early and precise planning was the only way to meet the construction schedule.

The roadway being repaired also had isolated structural failures that needed Logistically planning the mobilization of equipment, crews and materials across the waterways to reach the San Juan Islands was a challenge for VSS International.

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FEBRUARY 2020 ASPHALT CONTRACTOR

73 1/21/20 10:13 AM

PRESERVATION UPDATE The slurry seal was completed quickly and efficiently over the period of two working days. There was a 1.5 mile section of roadway that was included in the project as well as multiple campground/parking areas.

VSS chose to utilize Macropaver 12E Units on this project. These particular machines incorporated Caltrans approved material monitoring and control systems to ensure correct proportioning of all materials. After inspection of the equipment, the crew was allowed to proceed into the park to complete the work.

to be addressed prior to the preservation treatment as a slurry seal will not repair structural failures. Therefore, prior to any slurry seal being placed, areas of failure were removed and replaced with new hot mix asphalt.

PLANNING FOR SUCCESS Once all of the preparatory activities were completed, it was time to begin the placement of the Type II slurry seal. This responsibility required logistically planning the mobilization of equipment, crews and materials across the waterways to reach the San Juan Islands.

First, the aggregates had to come across on the ferry in order to create a suitable stockpile. The materials had to be tested and approved for placement by the FHWA prior to the project starting.

Over a period of two weeks, the aggregate supplier (Granite Construction) and the trucking subcontractor (OMA

Construction) completed this slow and painstaking task. Five hundred tons of Type II aggregate made the two hour journey from the quarry in Granite Falls, WA to Anacortes, WA. Once there, they waited an hour or longer for an additional 1.5 hour ride on the ferry before finally reaching Friday Harbor on San Juan Island.

Once the stage was set for the slurry crew, they then had to make the journey to the island. The crew was coming off of a large maintenance project for the city of Seattle and had specific times to get across the ferry throughout the day before the slurry operations were planned. The crew hit on all cylinders to make the trip a success.

RIGHT TREATMENT, RIGHT TIME The principal materials used to create a slurry seal are crushed aggregate, asphalt emulsion and fillers such as Portland cement, which are mixed together on the project site according to a laboratory designed mix formulation. The asphalt emulsion serves as a binder, holding the crushed aggregate together and adhering the new slurry surfacing to the old surface over which it is being applied. The aggregate must be clean, durable and properly graded to meet the specifications. Typical gradation categories for slurry seal are Type I, II & III. Type I being the finest grade to the Type III being the most course. This project was specifically designed with a Type II aggregate.

What set this slurry seal apart from typical slurry seals was the requirement

After two weeks, the project was post swept utilizing a power broom. Following the post sweep, the markings and painted striping was placed and completed over two working days. The project was quickly inspected by the National Park Service and accepted.

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PRESERVATION UPDATE

The roadway being repaired had isolated structural failures that needed to be addressed prior to the preservation treatment as a slurry seal will not repair structural failures.

Therefore, prior to any slurry seal being placed, areas of failure were removed and replaced with new hot mix asphalt.

that the materials be placed alongside cooler coastal conditions found on the island. Mornings on the island typically have a heavy fog that would normally delay the cure of typically slurry seal product. The selected areas were heavily shaded which amplified the challenges.

VSS International’s Technical Group was able to engineer a formulation that would allow the slurry seal product to meet both the placement and performance challenges required by this contract. The finished product was high performance slurry seal material that would allow the product to set and cure quickly.

The materials were engineered to allow cross traffic on the new mat within 8-10 minutes at traffic sensitive areas.

Aside from the use of quality

76

materials and an approved laboratory formulation, the timing of a slurry seal treatment is critical with regards to overall cost, effectiveness and longterm success. A new slurry seal must be placed while the road is still in fair to good condition on the pavement condition index curve.

The slurry seal was completed quickly and efficiently over the period of two working days. There was a 1.5 mile section of roadway that was included in the project as well as multiple campground/ parking areas. The campgrounds/parking areas were notified in advance of full closures and reopened to traffic on the same day of application. The section of roadway (Cattle Point Rd.) was controlled by pilot car during construction.

After the slurry was completed, the FHWA specified a 2-4 week maintenance period of post sweeping before markings and painted lines could be completed. Slurry seal will ravel slightly after the initial placement and it is not uncommon for agencies to specify post sweeping in order to assure any ravel is swept up during the cure period.

After two weeks, the project was post swept utilizing a power broom.

Following the post sweep, the markings and painted striping was placed and completed over two working days. The project was quickly inspected by the National Park Service and accepted.

The remote location of this project and logistical planning required made this project challenging. The team at VSS International rose to the challenge.

The project was completed quickly and efficiently to the satisfaction of the stakeholders of the National Park.

Matthew Ferguson is construction manager at VSS International, Inc.

For more information on slurry seals, visit ForConstructionPros.com/ XXXXXXXX The principal materials used to create a slurry seal are crushed aggregate, asphalt emulsion and fillers such as Portland cement, which are mixed together on the project site according to a laboratory designed mix formulation. The asphalt emulsion serves as a binder, holding the crushed aggregate together and adhering the new slurry surfacing to the old surface over which it is being applied. The aggregate must be clean, durable and properly graded to meet the specifications. Typical gradation categories for slurry seal are Type I, II & III. Type I being the finest grade to the Type III being the most course.

This project was specifically designed with a Type II aggregate.

ASPHALT CONTRACTOR FEBRUARY 2020 www.ForConstructionPros.com/Asphalt

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ASPHALT PLANTS · Astec 350 tph Relo Double Barrel plant w/4 silos · CMI 400 TPH Portable Counterflow Drum Plant · Boeing 200 stationary drum mix plant · Adm 100 tph stationary plant with silo & RAP · ADM 110 tph portable drum plant · Cedarapids 350 tph counterflow drum and baghouse · 8’X35’ drum mixer with 400 tph pugmill · 150 TPH Stationary drum mix plant · Astec 6000# tower and elevator · Astec 36” x 105’ slat conveyor · Astec 32” x 89’ slat conveyor · Astec 47,000 CFM relocatable baghouse · Stansteel 44,000 CFM Baghouse

· 80,000 CFM Stationary Baghouse · Astec 400 tph Double Barrel only · ’16 40 ton self erecting surge bin · Astec 750 barrel selferect lime silo · Astec 2-250 ton asphalt silos and slat conveyor · Astec 75 ton self-erect silo · ADM six bin cold feed system · Heatec hot oil heater · Coneco 10 yard portable concrete plant

Please Call For Complete Inventory

Plant for sale? Call Clancy!

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E.T. CLANCY COMPANY 219-879-8231 • 800-348-8553 Email: sales@etclancy.com • www.etclancy.com

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CLASSIFIEDS

CLEAN, RELIABLE, MOBILE POWER

A&A SEALCOATING BUSINESS FOR SALE I am retiring after 27 profitable years. All business assets have been well maintained.

Hydraulic Generators

Hybrid Battery Systems

ASKING $740,,000

• Biz includes (8) 2003-2004 GMC 5500 trucks

• (1) 26 hp crafco router

• (2) 550 gallon seal units

• 1 Billy Goat crack cleaner

• (1) 1000 gallon seal unit

• (2) 13 HP Billy Goat force blowers

• (1) 1500 gallon transfer unit

• (1) 11 HP Billy Goat Blower

• 1 dump truck

• 3 Graco Stripers

• 1 asphalt tank with 3 ton hot box (infrared patching)

• 1 Whacker compactor

• 4 little wonder crack cleaners

• 2 flat beds • 1 seal master pro 120 crack melter • 1 ARS infrared trailer unit with 4-4x4 heaters and 1-4x2 pad

• JD 2305 utility tractor with 200 hours has 60 inch power broom • 25 HP Brown standup blower with 60 hours • Many trailers and other items

• 1 Stone asphalt roller

Randy Flick 715-423-9040 aaseal@solarus.net

www.harrisonhydragen.com

DRUM PROBLEMS? BREAKING THRUST IDLERS AND BEARINGS ■ TRUNNION BEARING FAILURE ■ TIRE WEAR AND FLAKING

HIGH AND UNEVEN AMPERAGE TRUNNION SLIDING ■ VIBRATION AND WASHBOARD

■

■ ■

WE CAN HELP! TIRE / TRUNNION RESURFACING AND ALIGNMENT SPECIALISTS

570-779-1982 www.evansanddaniels.com 78

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CLASSIFIEDS

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Index Advertiser Index

PAGE

Advertiser Index

PAGE

A & A Sealcoating

78

Kenco Engineering Inc.

61

Ace Group

80

Lee Boy

29

Ahern Industries Incorporated

80

Libra Systems Corporation

63

Almix

9

Meeker

21

Ammann America Inc.

58

Minds

51

Asphalt Drum Mixers

48 – 49

Paratherm

66

Astec Inc.

27, 31, 35, 39, 42 – 43

Pegasus

57

Phoenix Industries

15, 65

Process Heating Company

62

R C Musson Rubber Co.

77

Reliable Asphalt Products Inc.

79

Roadtec an Astec Industries Company

84

SealMaster

17

Superior Tire & Rubber Corp.

71

Systems Equipment Corp.

37, 68

Tarmac International Inc.

23

Tenna

54 – 55

TransTech Systems Inc.

41

Weiler

53

Wirtgen America Inc.

5, 24 – 25

Blue Roads Solutions

19, 69

Carlson an Astec Industries Company

83

Caterpillar Paving

7

Dynapac Fayat Group

13

Eager Beaver Trailers

33

Eagle Crusher

45

E. T. Clancy Company

77

Evans & Daniels Inc.

78

Fast Measure By KTP Enterprises

77

GEICO

2

Gencor

3

Harrison Hydra-Gen

78

Heatec Inc.

81

Hog Technologies

59

Homestead Valve Division

47

Hydronix

18

Ingevity

67

Get fast, relevant product information in the Buyers Guide at

ForConstructionPros.com

DESIGN. ENGINEERING. M A N U FA C T U R I N G .

SERVICE. If you store liquid asphalt, blend asphalt emulsions or polymer modified asphalt, Heatec is your one source for everything from tank farms to asphalt terminals. Heatec will design and build a system for you that is efficient, durable and easy to use and provide world class parts and service support 24/7. Learn more at www.heatec.com.

BOOTH C30336

www.ForConstructionPros.com/Asphalt

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THE LAST EXIT |

BY JESSICA LOMBARDO, EDITOR

Five Forces Acting on Your Asphalt Paver Screed conveyor in a concentrated mass and then being placed on the mat without mixing with any hot or fine aggregate.

This can produce aggregate segregation or temperature differentials which will cause isolated low mat densities. If there are no material transport vehicles immediately available to refill the hopper, it is better to stop the paver than to continue operating and empty the hopper.

3. SCREED WEIGHT The heavier screed you have, the more stability. While this is not something that you can alter on the jobsite, it can mean your paver will be less reactive to any changes that may occur while paving.

Ensure the maximum stability of these five forces to optimize both screed performance and the long-term performance of the roadway.

The inability to keep these forces consistent will result in poor ride quality down the road

P

aving contractors have a lot to worry about when laying asphalt.

From the consistent deliver of the mix to the jobsite to the rollers obtaining density targets, there are many factors that can lead to disaster on your project. Between the mix and the roller is the all-important asphalt paver, the proper operation of which will mean the difference between success and failure. Here are the five main forces that you need to pay attention to, and keep consistent, in order to achieve a smooth ride.

1. PULL FORCE The pull force of your paver is basically the paving speed. You want to make sure you maintain a constant speed while paving in order to keep equilibrium between all forces impacting the mat. Dramatic changes in paving speed

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could result in a change in mat thickness which will lead to a rough ride.

Your paving speed should be calculated based on the material delivery schedule and the capability of your rollers to keep up.

2. HEAD OF MATERIAL Keeping a consistent head of material will also help ensure a smooth ride. If your head of material is too high, the screed rises due to the increased resistance. If your head of material is too low, the screed will settle from decreased resistance. This involves maintaining a minimum amount of HMA in the hopper, regulating HMA feed rate by controlling conveyor/auger speed and flow gate openings (if present) and maintaining a constant paving speed.

A fluctuating HMA head in front of the screed will affect the screed angle of attack and produce bumps and waves in the finished mat.

The hopper should also never be allowed to empty during paving. This results in the leftover cold, large aggregate in the hopper sliding onto the

4. SHEAR FORCE The shear force is basically the angle of attack between the screed and the mat.

The correct angle of attack combined with the proper vertical adjustment of your screed will equal a stable screed and a quality mat.

5. REACTION OF MATERIAL Different mixes will require a different force from your paver so it’s important that the mix, and the mix temperature, remain consistent. Everything from AC content to variations in gradation will impact the quality of the mat.

When these five forces are in balance, the screed is held to-grade with an equilibrium angle of attack. Any changes in these forces will disrupt the balance of the forces, resulting in roughness and mat blemish. Ensure the maximum stability of these five forces to optimize screed performance.

For more information on screed maintenance, visit ForConstructionPros. com/21088687

www.ForConstructionPros.com/Asphalt

1/21/20 10:16 AM

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A NEW KIND OF POWER TOOL

OUR MOST POWERFUL PAVER The RP-250’s large tires and frame-raise provide ideal weight distribution and tractive effort. Steering is assisted by the rear wheels so you have precise control, especially in turning. With 250 horsepower, this paver provides the power you need.

See the full range of products at roadtec.com

© 2020 ROADTEC. INC. ALL RIGHTS RESERVED

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1.800.272.7100

Dedicated to Your SuccessSM

1.423.265.0600

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