SEPTEMBER 2018
+
QUALITY CONTROL SPECIAL REPORT | 28
ALL EYES ON
OSCILLATION THESE ROLLERS ARE GAINING MOMENTUM, HERE’S WHY | 40
Compare nearly 200 models | 50 www.ForConstructionPros.com/Asphalt
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UNMATCHED DESIGN
Heatec has been designing and building tank farms for over 40 years and each project has been unique in some way. That’s because each customer is unique. You have your own business model that may be slightly different or dramatically different from the other guys’. That’s why at Heatec we take a comprehensive approach to designing your tank farm. That means we look at the materials you will be using, all the equipment that needs heat, the piping, and even future plans for expansion. Then we design a system that works for you. And we make it efficient and simple to operate. Heatec is unmatched when it comes to designing heating and storage systems for your asphalt plant. To find out more about our approach, visit us at www. heatec.com or give us a call at 423-821-5200.
H E AT E C , I N C .
an Astec Industries Company
5200 WILSON RD • CHATTANOOGA, TN 37410 USA 800.235.5200 • FAX 423.821.7673 • heatec.com Search: 10073245
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TABLE OF CONTENTS |
SEPTEMBER 2018
COVER STORY All Eyes on Oscillation Oscillating rollers help improve productivity and create a smoother finish on challenging mixes. | 40 TECHNOLOGY
10 How Technology Simplifies Road Resurfacing New technologies allow critical data to be collected at highway speeds.
SPECIAL REPORT: QUALITY CONTROL
JOBSITE INNOVATIONS
PRESERVATION UPDATE
28 Using a MMS at Your Asphalt Plant
48 Jobsite Products
62 Matching Asphalt Maintenance & Rehabilitation to the Surface Distress
Installing a moisture measurement system for your drum plant can help improve mix consistency.
Pavers, rollers, MTVs & more.
Pavement preservation is not a one fix cure-all, be sure you’re using the proper repair for the problem.
PRODUCTION NOTES
18 Should You Own an Asphalt Plant? Advantages of and considerations to make before purchasing an asphalt plant.
22 Cliff’s Notes This month, Cliff asks if asphalt professionals really need a college education to be successful. Spoiler alert, the answer is no.
26 Production Products Plants, baghouses, mixers, dryers, automation systems & more.
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50 Tandem Roller Spec Guide 32 Quality Control Product Spotlight Density gauges, laboratory controls & other tools asphalt contractors can use to measure the quality of their asphalt.
Compare nearly 200 different models of tandem asphalt rollers to help you make the best purchase that will fit the needs of your company.
67 Preservation Products Milling machines, reclaimers, infrared equipment & more.
IN EVERY ISSUE 8
Editor’s Perspective
74 The Last Exit
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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DIGITAL CONNECTION www.ForConstructionPros.com/Asphalt
Nearly 79 Million Tons of Recycled Materials Used in Asphalt Pavements During 2017
2018 Trending Towards Huge Growth for Construction Industry
Nationwide in 2017, nearly 39% of asphalt pavements were produced as energy-saving warm mix with nearly 79 million tons of recycled materials reused for our roadways.
Through its mid-year webinar, ARTBA provided a comprehensive overview of the economic and political landscapes facing the transportation construction industry so far in 2018 as well as what’s looming ahead Search: 21014790
Which States’ Infrastructure is Falling Apart the Worst?
Search: 21014027
Shuster Proposes 15-Cent Gas Tax Increase to Fund Trump Infrastructure Bill
Rhode Island ranks in as number one worst state for infrastructure with the highest percent of roads in poor condition at 24.6%. Search: 21017738
Get social with us! Share pictures of what you’re working with over 19,000 other asphalt contractors on our Facebook page: Facebook.com/ Asphalt.Contractor/
Rep. Bill Shuster, chairman of the House Transportation and Infrastructure Committee, released a draft of a longawaited infrastructure plan that calls for significant federal investment in infrastructure projects and grant programs through at least 2021. WWW.FORCONSTRUCTIONPROS.COM/ASPHALT WWW.FORCONSTRUCTIONPROS.COM/ASPHALT WWW.FORCONSTRUCTIONPROS.COM/ASPHALT
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CONTRACTOR
LATEST INNOVATIONS FOR ASPHALT PROFESSIONALS PROFESSIONALS LATEST LATEST INNOVATIONS INNOVATIONS FOR ASPHALT PROFESSIONALS
SEPTEMBER 2018 Vol. 32, No. 7
ASPHALT
CONTRACTOR LATEST PROFESSIONALS LATEST INNOVATIONS FOR ASPHALTPROFESSIONALS PROFESSIONALS LATEST INNOVATIONS FOR ASPHALT
Published by AC Business Media Inc.
Asphalt CONTRACTOR
201 N. Main Street Fort Atkinson, WI 53538 (800) 538-5544 • www.ACBusinessMedia.com www.ForConstructionPros.com/Asphalt
LATEST INNOVATIONS FOR FOR ASPHALT ASPHALT PROFESSIONALS PROFESSIONALS LATEST PROFESSIONALS LATEST INNOVATIONS
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Published and copyrighted 2018 by AC Business Media Inc. 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 Inc., 201 N. Main Street, 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. Canada Post PM40612608. Return Undeliverable Canadian Addresses to: Asphalt Contractor, PO Box 25542, London, ON N6C 6B2. 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).
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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RIGHT THERE WITH YOU Every day brings new challenges and tight deadlines. You’re not alone in tackling what lies ahead—we’re at your side, just like always. With market-leading paving and construction equipment that helps you complete every job on time and on spec. Unmatched parts and service support that keeps you running efficiently. Real-world, hands-on training and resources that help your crew master the latest techniques and technologies. In an ever-changing industry, one thing remains the same: our commitment to be right there with you.
SEE OUR COMMITMENT
www.cat.com/APpaving18
Search: 10075307 © 2018 Caterpillar. All Rights Reserved. CAT, CATERPILLAR, BUILT FOR IT, their respective logos, “Caterpillar Yellow,” the “Power Edge”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 INNOVATIONS FOR ASPHALT PROFESSIONALS PROFESSIONALS LATEST LATEST INNOVATIONS INNOVATIONS FOR ASPHALT PROFESSIONALS
SEPTEMBER 2018 • Vol. 32, No. 7
ASPHALT
EDITOR’S PERSPECTIVE
CONTRACTOR LATEST INNOVATIONS FOR ASPHALTPROFESSIONALS PROFESSIONALS LATEST LATEST INNOVATIONS FOR ASPHALT
Published by AC Business Media Inc.
Jessica Lombardo, Editor jLombardo@ACBusinessMedia.com 920.542.1247
Overcome Project Challenges Through Industry Support
W
hen it comes to your business and the workers you rely on every day to get the job done, you want to make sure they are able to perform at their best for both the on-time completion of the job and the reputation of your company. This is why you invest in personal protective equipment, training and technologies that help contribute to the success of each project. In order to remain productive, business owners also know that they need to invest in, and sometimes upgrade, their equipment fleet. Since this equipment is the life blood of your company, making sure you have the tools you need to do each job, and ensuring that every piece of equipment is up and running efficiently every day, is key. In this issue, we again feature the Tandem Roller Spec Guide. Starting on page 50, we list over 300 models of tandem asphalt compactors from various manufacturers so you can make sure you find the one your company really needs. What happens though when you face a challenge on a project your equipment and team may not be ready to handle? Delays in the field can be catastrophic to your bottom line. If a roller goes down, the entire paving train stops, impacting the mix that’s already laid and the integrity of the rest of the job. DEALERS DELIVER That’s where your dealer relationship comes in. Contractors do not have the time or capital to waste on equipment issues that could be handled by a dealer in the normal course of business. When time is money, having a relationship with a dealer could be the
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difference between a profitable job and a loser. Here's what you can expect from most reputable dealers: • New and used equipment to meet your needs: If they don’t have it, they will get it. • Market trade-in values: They should be able to back up any trade-in number they quote. • Financing options: Many dealers offer outright purchase or lease financing that is competitive for new equipment, as well as financing options for used equipment. • Rental equipment: Rental is available when you need equipment for a short term or your purchased unit is in for service. • Product support: Dealers offer product support both locally and in the field. This includes parts, service and maintenance contracts. • Logistics support: With contractors “spreading out“ to get more work, there may be a need to move equipment or get support from a local dealer. Dealers can help you make arrangements with their local representative where you are working. What problems can we help you address? Since we consistently work with manufacturers and contractors who are finding ways to be more productive and overcome challenges every day, we can help you figure out the solution to those problems that keep you up at night. Contact me at jlombardo@acbusinessmedia.com and let’s find a solution.
Asphalt CONTRACTOR
201 N. Main Street | Fort Atkinson, WI 53538 800.538-5544 • www.ACBusinessMedia.com LATEST INNOVATIONS FOR FOR ASPHALT LATEST PROFESSIONALS LATEST INNOVATIONS ASPHALT PROFESSIONALS PROFESSIONALS www.ForConstructionPros.com/Asphalt
Publication Staff Publisher
Amy Schwandt
aschwandt@ACBusinessMedia.com
Editor
Jessica Lombardo
jlombardo@ACBusinessMedia.com Ad Production Manager
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Advertising Sales (800) 538-5544 Kris Flitcroft kflitcroft@ACBusinessMedia.com Sean Dunphy sdunphy@ACBusinessMedia.com Erica Finger efinger@ACBusinessMedia.com Tom Lutzke tlutzke@ACBusinessMedia.com Amy Schwandt aschwandt@ACBusinessMedia.com Eric Servais eservais@ACBusinessMedia.com Denise Singsime dsingsime@ACBusinessMedia.com
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Nick Raether
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Editor
Larry Stewart
Managing Editor
Kimberly Hegeman
Change of Address & Subscriptions PO Box 3605, Northbrook, IL 60065-3605, Phone: (877) 201-3915 • Fax: 847-291-4816 circ.AsphaltContractor@omeda.com
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TECHNOLOGY MATTERS |
BY JEFF WINKE
How Technology Simplifies Road
RESURFACING
New technologies allow critical data to be collected at highway speeds
T
raditionally, highway resurfacing projects have been a challenge, not only for the contractor, but the inconvenienced community through which the road passes. To collect the project data needed to perform the resurface, typically there are required lane closures and a team of surveyors collecting data points from along the side of the road with diverted traffic whizzing past. It was a slow, cumbersome and dangerous process, that affected the daily commuter flow and affected the contractor's project timeline. But things are better. Designed to work at the speed of highway traffic, the Topcon SmoothRide resurfacing system is intended to
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safely assist road resurfacing contractors without the need for road or lane closures. The system is fully automated with GNSS and sonic tracker control. It is designed to deliver accurate thickness boundaries while maintaining projected yield. It eliminates the need for survey strings, averaging skis and lasers. "In most situations, it’s inconvenient or impossible, to shut down a road and map its surface using traditional pointto-point surveying methods,” Murray Lodge, senior vice president and general manager of the Topcon Positioning Group Construction Business Unit says. “We’ve developed a way to scan roads at highway speeds with no need for lane closures, crash trucks, escorts or any other typical road survey collection obstacles. With the new RD-M1 scanning unit, the system maps the existing surface elevations — with many more points captured versus what can
New be expected with technology traditional tools provides more — providing more accurate data accurate data needto confidently ed to confidently estimate estimate materials, materials and as well as form the form the basis of basis of the final the final design design surface.” surface. The SmoothRide system uses a Topcon RD-M1 (Realistic Dimension - Mapping One) Road Resurfacing Scanner that is attached to a vehicle, typically a pick-up truck. The downward facing laser scanner connects to a standard tow hitch or the front of any vehicle with standard tow hooks. With using standard tow hitches and hooks, the scanner is designed to be easy to remove and adapt to any vehicle, thus eliminating the need to have a dedicated vehicle to operate the RD-M1. The unit is designed to collect
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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The SmoothRide system uses a Topcon RD-M1 Road Resurfacing Scanner that is attached to a vehicle and captures millions of data points.
millions of points at scan rates of up to 100 times per second. Cruising at normal highways speeds, the 3D surface scanning can cover miles of road in a short time. The collected data is automatically timestamped and stored for the next step of data management and point cloud generation. The mounted scanner captures millions of data points that are collected safely from the cab of the truck or car. Topcon points out that the driver can begin a road-surface surveying session by simply clicking the start button on their laptop computer and go.
Capturing road details at proper speed helps enable SmoothRide to deliver the best possible results. "I like that we can collect accurate topos while driving 50 miles per hour," Chris Smithson, project manager with Big Creek Construction, Lorena, TX says. "We used it recently on a 3.5-mile section of Ranch Road 2838 in Mexai, TX where we were able to give the state more accurate cross sections and dirt quantities on the two-lane road and shoulders project we worked on. It saved us time and money." Knowing the surface details in advance allows a contractor to successfully plan for an accurate material calculation, which can help with knowing how much asphalt or milling will be required for the project. SmoothRide is considered to
IVE TIT B
ND RA
COMPE
IMPROVING JOB ESTIMATES The RD-M1 employs Collect 2.0 graphical collection software, which features an interface status bar that indicates the optimum speed for collecting road information based on the project requirements.
Search: 10074458
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SEPTEMBER 2018 ASPHALT CONTRACTOR
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TECHNOLOGY MATTERS
be especially appropriate for mainline paving or milling projects requiring long sections of road that needs resurfacing. A feature called Memos is designed to allow operators to create balloons with messages on the map. The collected data can be made visible in the processing software — enabling specific site conditions to be noted for future reference. A Manage Runs feature enables operation without necessitating an internet connection. The software display's large buttons which are intended to make using a tablet or laptop with touch screen easier. Operators can copy data collections to
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a USB drive, delete them from the hard drive and add or remove them from the manager. The RD-M1 Collect 2.0 software has a Plan Route feature that allows for the import of kml files of predetermined routes, designed to help ensure that nothing is missed during the data collection run. “Using the map downloader, operators can be assured of having all map details visible while collecting data, without the need of an internet connection,” Maas says. “Additionally, overlapping locations can be managed by creating areas where predefined overlaps are
Designed to work at the speed of highway traffic, the Topcon SmoothRide resurfacing system is intended to safely assist road resurfacing contractors without the need for road or lane closures.
required for the project. The detailed road surface scanning can be used to create and manage large point cloud information with our intuitive 'Mobile Master Office' software. The data can then be seamlessly transferred into MAGNET Office software’s 'Resurfacing' module to bring out the full array of software
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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ASTEC Parts. We’re Here. Always. Combine the world’s largest inventory of in stock parts for asphalt plants, the ability to build and machine custom parts and a fully staffed department of salesmen, technicians and engineers and you have ASTEC parts. • Over 100,000 parts in stock • OEM for ASTEC, DILLMAN, Barber-Green, EssTee & McCarter • In-house parts techs and engineers available 24/7 • Over 600 combined years of experience ready to help you
800.251.6042 • www.astecparts.com Search: 10072061
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TECHNOLOGY MATTERS features needed to meet smoothness and cross slope requirements, while adhering to any minimum or maximum thickness specified for the job." The SmoothRide system can assist contractors with variable depth milling and achieve uniform thickness in paving. The system is said to eliminate the time and costs of survey work and to benefit bid and spec jobs in advance by providing more accurate surface data.
"We use the 3D scanner part of They system SmoothRide as a survey tool to safely is designed to collect the data we need and eliminate deliver confidence hours of cross-section measurements," throughout John Dowalter, survey and machine the paving and control manager for Shelly and Sands, milling process by Zanesville, OH says. "The system's providing the key RD-M1 Scanner is great for capturing data needed to bridge approaches that sometimes have complete the job a big skew leading up to the bridge suraccurately to spec. face. That feature helped tremendously on a recent resurfacing section of I-71 between Columbus and Cleveland, which has a number of bridges that could have occupied hours of time for my crew." In summary, the Topcon SmoothRide system is designed to offer 3D scanning collected while driving the job-site road, which is said to replace hours of surveyor-obtained cross-section measurements. The system's software helps deliver confidence throughout the paving and milling process by providing key data needed to complete the job accurately to specs. Jeff Winke is a business and construction writer based in Milwaukee, WI. He can be reached through jeff_winke@yahoo.com.
For more on the SmoothRide system, visit ForConstructionPros.com/20995759.
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Search: 10074819
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INNOVATION. RELIABILITY. TECHNOLOGY. Stansteel provides a competitive advantage, plus responsive, reliable service.
STANSTEEL develops unique innovative, powerful technology that helps:
Plant operators to run their operations more easily and efficiently
Plant owners to realize greater profits and increase margin
R
ASK ABOUT OUR NEW CRITICALLY-ACCLAIMED TANK MANAGEMENT SYSTEM TODAY! Visit Stansteel.com or call 800.826.0223 Search: 10074707
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Dependable Performance CONSISTENT MIX
FOR MORE INFORMATION VISIT ASTECINC.COM/UNIDRUM
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DILLMAN UNIDRUMÂŽ
When it was time to buy two new plants, a Dillman UNIDRUMÂŽ plant was the best fit for us. We like the Unidrum because of its very consistent, homogenous mix and very low maintenance. The Unidrum plants provide more uptime with less routine maintenance.
Slavic Mokienko,
General Manager, R. E. Pierson Materials Corp. Operating Four UNIDRUM Plants
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PRODUCTION NOTES
Should You Own an
ASPHALT PLANT?
Advantages of and considerations to make before purchasing an asphalt plant
A
sphalt paving contractors know the challenges of getting hot mix from a supplier. Long waits for material, high trucking costs and lack of control over mix quality can make paving projects incredibly frustrating. And, furthermore, relying on a competitor’s plant to fulfill asphalt requirements can reduce the profitability of the job and pose a risk to a business’s reputation for quality and timeliness. Investing in an asphalt plant, whether portable or stationary, is a big step. It takes a lot of research and number crunching to determine if it makes sense for each operation. But after considering all the benefits of plant ownership, it’s easy to see how making that commitment pays dividends early on.
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NO MORE WAITING IN LINE Getting hot mix when and where it’s needed is one of the quickest paybacks to owning a plant. It immediately improves an operation’s efficiency because its trucks won’t be stuck waiting at a supplier’s plant. Paving crews buying from a supplier must sometimes wait for hours for a truck to return with a load of hot mix. Alternatively, they may have multiple trucks running at once to ensure a continuous supply, a costly system. Contractors who invest in a plant avoid the lines and keep their projects running without interruptions. CONTROL THE MIX QUALITY When a company owns the equipment, it has control over the quality and consistency of the asphalt mix, something that’s difficult to achieve when outsourcing. Plus, there’s no need to reassess supplier material for quality at every new site. Over time, a company will develop its own arsenal of custom asphalt blends and specialty mixes, ensuring the optimal
Shorter material transport times alone can greatly contribute to efficiency and a fast return on investment. Shorter hauls mean fewer trucks are needed, saving fuel, vehicle wear and labor costs. They also make road crews more productive, never leaving them waiting for materials.
asphalt for every application. This opens the door for a business to differentiate itself from the competition with custom, high-quality blends. IT CAN ELIMINATE THE LONG HAUL In addition to controlling mix supply and quality, contractors can choose a portable asphalt plant, rather than stationary equipment, to maximize their investment. The ability to take the asphalt production facility where it’s need is invaluable, especially in areas with seasonal work or a low population density. A portable plant allows a contractor to stay in close proximity to the jobsite. This
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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RELIABLE. EFFICIENT. EXPERIENCED.
Gencor technical support has never been easier or more accessible. With a simple phone call you get 24 hour access to the best trained technicians and parts specialists in the industry. That’s our commitment to you and the industry for over a century. Look to the reliable and trusted leader in asphalt plants and equipment. Gencor, the name you can trust for all your asphalt plant needs. Call us at 407-290-6000 or visit us on the web at www.gencor.com 5201 North Orange Blossom Trail • Orlando, Florida 32810 Search: 10073090
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PRODUCTION NOTES Getting hot mix when and where it’s needed is one of the quickest paybacks to owning a plant. It immediately improves an operation’s efficiency because trucks won’t be stuck waiting at a supplier’s plant.
cuts down on haul times and can reduce the number of trucks needed to keep the road crew going with a sufficient supply of asphalt. BUT IS IT WORTH IT? Return on investment is the issue everyone justifiably wants to talk about when it comes to asphalt plant ownership. With no shortage of variables, it can be difficult to account for everything. The efficiency of ownership shows itself in a number of different ways. For example, shorter material transport times alone can greatly contribute to efficiency and a fast return on investment. Shorter hauls mean fewer trucks are needed, saving fuel, vehicle wear and labor costs. They also make road crews more productive, never leaving them waiting for materials. These factors usually result in at least 50 percent better truck utilization for a paving contractor entering the production market. If, for example, truck costs are $70 to $75 per hour, it easily adds up to $1,500 per day. KNOW THE ROI LANDSCAPE Every scenario is different, but the majority of operations realize a return on a new asphalt plant in just a few years, and some will produce enough to cover the cost of the plant in a single year.
In general, contractors who consistently produce 50,000 tons of material per year find the investment well worth it. Depending on the situation, even those who produce less discover that the benefits of ownership outweigh the costs. Ultimately, it’s important to work out the math with a product expert to see if ownership makes sense for an operation. A company could be foregoing thousands of dollars in annual profit by continuing to outsource.
Every scenario is different, but a majority of operations realize a return on a new asphalt plant in just a few years, and some will produce enough to cover the cost of the plant in a single year.
Mike Devine is the president of Asphalt Drum Mixers. His 18 years of industry experience help him in his role overseeing all aspects of the company. Reach him at 260-637-5729 or mgdevine@ admasphaltplants.com.
For more information on choosing the right asphalt plant for your company, visit ForConstructionPros. com/20981099.
In addition to controlling mix supply and quality, contractors can choose a portable asphalt plant, rather than stationary equipment, to maximize their investment.
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ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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,,
SYSTEMS
ii11u111 iii1A r11u1a1:.:1:1 1au111ru 1-1:.11 Reputable and reliable ADP-1 00 asphalt blending system
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Globally Known For Reliable Automation Systems!
lm�roveo �ro�ortionin� accurac� rro�er tim e se�uencin� of events Accurate oata recoroation Alarm ano oeviation annunciation
Keeping the Peace Between Management & Labor, Contractors & Quality Control.
Designed to proportion aggregates and additives according to prescribed mix formulas as well as measure and control liquid asphalt mass flow rate so blends are accurately interlocked to the measured aggregate. Search: 10074806
�im�le multi-�oint calioration ACON0918_18-21_OwningAsphaltPlant_J.indd 21
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PRODUCTION NOTES |
BY CLIFF MANSFIELD
Do Asphalt Professionals Need a
COLLEGE EDUCATION? There are 30 million jobs in the U.S. that pay over $60K a year and a vast number of them are unfilled as today’s youth believes if you don’t have a college degree, you will struggle
Cliff ’s Notes
E
arly this spring I was asked to give a two hour presentation at a Washington State Engineering College. The subject matter was “What opportunities are there in the Highway Construction Industry for the College Graduate.” I started the session by listing what jobs in our field I felt actually needed a college degree. I could see the professor’s face darken when I mentioned that these jobs were mostly “inside, clerical” type jobs. It darkened further when I mentioned that most of those jobs were of the $50k a year or less variety. But to be honest, I thought the man’s head was going to explode when I said that most of the technical jobs at our paving companies paid nearly twice that money and could be had with no degree. Trade school is what most of these kids needed, I said. According to a National Public Radio article I just read, there are some 30 million jobs in the U.S. that pay over $60K a year and a vast number of them are unfilled because today’s youth has been
22
indoctrinated to believe that if you don’t have a college degree, you will be a failure and struggle to get through life. In reality, I have seen exactly the opposite to be true when considering the applicants who apply to work at at my company. While I don’t want to stereotype these kids, it does seem to me that they are very ill-prepared to work in the construction world. These kids are saddled with a college degree and a MOUNTAIN of debt. Throughout their young lives, they were pressured into believing that working with your hands was somehow dirty and beneath them. Now as they venture out into the “real world” they discover they have been sold a fallacy. I wish I could have counseled these kids before they left high school. I would have told them to be sure of the
direction they wanted to go in their lives and then do some research to see what kind of education/skill-set it takes to get that place you want to be. If an $80,000 a year job is your goal, then a four year college degree is may not be where you want to spend your time. WHAT'S BEST FOR THEIR FUTURE? Obviously, in the construction world there are a number of positions that a four year degree would be helpful. Areas like Civil Engineering, Accounting, Environmental Quality, Quality Control and similar jobs all contribute to the success of construction companies. At the average paving company, what percentage of the employees are actually working in these jobs? 10% maybe? In my thinking, trade school is a far more viable option
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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LOCATIONS NATIONWIDE (800) 395-7325
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PRODUCTION NOTES for the vast majority of graduating high school students these days. According to the Associated General Contractors, 70% of construction companies in the U.S. are struggling to find qualified workers to fill the positions they have open. On the other side of the college/ trade school debate is the vast number of unemployed bachelor degree holders in America. These graduates are wandering around under a staggering amount of college debt, unable to find a job. Actually, it is a bit sad. It has been hounded in to these younger generations that if you want a high paying job you need a college degree. In some respects, the trades have been characterized as jobs for those who can’t get into college. But in today’s reality, where 70% of American companies can’t get enough skilled workers to staff jobs paying an average of $60,000 a year, it looks as if there is a big perception problem for today’s youth. Money isn't the only issue, advocates for career and technical education say. An even bigger challenge is convincing parents that trade schools lead to good jobs. They remember vocational training from when they were in high school. The manual labor. The working with their hands. All of which is not necessarily what they aspire to for their own kids. These parents are hard to convince because there is that stigma attached to the “dirty” and sometimes profane construction worker. The construction trades have this connotation of being dirty jobs and hard work. Parents blindly think they want something better for their son or daughter. That stigmata is so profound that recently, just north of me in Washington State, the Lake Washington Institute of Technology changed its name from Lake Washington Technical College to avoid being stereotyped as a vocational school. HARD WORK PAYS OFF Another factor driving educators to push kids toward college seems to be that in a quest for prestige and rankings, and to bolster real-estate values around them, high schools like to emphasize the number of their graduates who go on to
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four-year colleges and universities. Good for the schools, but what about the kids? In reality it comes down to what we as parents and mentors pass on to the younger generations. I am in my midsixties. I grew up in a rural Oregon farming community. From an early age my summers were spent operating a D6 Cat tractor dragging a rod-weeder or a plow back and forth across many 500 acre sections of wheat fields. Between that, cutting and baling alfalfa hay and harvesting the wheat in the fall, I really never had much time to be a kid. But these activities taught me a strong work ethic. At our high school, there were shop classes offered, drafting classes and economics classes dealing with farm life. What else could a person need? In reality it never even crossed my mind to go to college. What for? At 14 years old my dad left me in charge of the harvesting of 8,500 acres of wheat on the home farm while he took a crew out to grand dad’s acreage, in next county over and took care of that place. Looking back on my presentation at the college, I don’t think the session went as the professor had hoped. At the end of the presentation I was deluged with questions about WHY these kids would need to get an advanced education? And did I have any degrees? How could I be successful without any advanced degrees? Do the lack of degrees hold me back in my consulting engineer field? I answered all these questions as honestly as I could. As I watched the professor I knew that the answers I was giving, the reality of what I was saying, flew in the face of the college mantra-formal education is the ONLY way forward. I am pretty sure I got scratched off that professor’s Christmas card list. One young girl asked whether anyone looks down on me for not having a bachelor's degree. I thought to myself, ‘You mean other than your professor?’ I answered the girl by saying that I don't particularly care. I made myself successful with hard work and perseverance. I told her that the real misconception in all this is that without a degree a person can't make much money. My experience tells me that this is not true. I work hard, travel
the world and have never needed any college degree. I told those students that you make your own path in life. If you are reasonably intelligent, willing to apply yourself to ‘real world’ lessons and you have a strong work ethic, you can go far in the highway construction world. While I was talking at the end, after my slideshow presentation which was run off my laptop through a projector, my screensaver came up on the canvas screen. It is the picture that is with this article. I told those kids that the Thunderbird in that picture is my company’s race car. And I think that that race car illustrates my overall point nicely: I was a poor ‘dirt farmer’ who reinvented myself and proved that if you apply yourself, learn all you can from everyone around you and are willing to take some risks, you
can be successful without any formal degrees. But NONE of that success will be simply handed to you. You MUST work for it. I believe I may have influenced at least some of those students to at least consider the trade school option. I stayed well past my 2 hour allotted time, talking with what I hope is our country’s future. Those kids actually seemed amazed to hear a viewpoint outside the academic norm that they have been spoon-fed for years. Cliff Mansfield operates C.M. Consulting, an asphalt repairing, upgrading and operational training company. Visit hotplantconsulting.com for more info.
For more information on construction education, visit ForConstructionPros. com/20972736.
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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The New LIGHTWING® Runs on 12/24V DC or 110V AC without extra converter!
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The Powermoon® Team always loves to hear from you! Call or write us any time: 770-516-2266 - info@powermoon.com - powermoon.com ACON0918_22-25_CliffsNotes_J.indd 25
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PRODUCTION NOTES Asphalt Transports
ALmix Duo Drums
Live Bottom Trailers
Heavy Duty Trailers
ALmix Duo Drum Plants feature independent aggregate drying and asphalt mixing drums. • Longer dryers incorporate early entry RAP system • Big diameter dryers reduce minus 200 carryout • Higher speed mixers thoroughly incorporate additives • Light ends are incinerated by the main plant burner • Both skid mounted and highly portable configurations are available • Models available from 160 to 600 tph Search: 10081254
Meeker Batch Plant RAP Kit • System features precise control of RAP • Unique weighing system allows for higher RAP percentages in mix • Positive control of stem release • Steep sloped bin walls on rap bins for trouble free operation • PLC touch screen controls Search: 10086128
Astec M-Pack Relocatable Facility
ChipSpreaders
The M-Pack plant is engineered as a set of modules, which are transported by truck and bolted-up at the site. • Astec tests each component before shipping to ensure a hassle free setup • Full-sized control rooms, large silos, high production capacity and excellent maintenance access Search: 10091043
Asphalt Distributors
E. D. Etnyre & Co.
www.etnyre.com 800-995-2116 email: sales@etnyre.com
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Gencor MEGAPLANT Gencor designs and builds the biggest installed base of Megaplants across North America each producing over 50% RAP and achieving production levels of over 800 tph. • Incorporates the Ultradrum design which maximizes heat transfer • Use RAP and RAS • Patented positive reclaim system Search: 10860316
Search: 10072816
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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Stansteel Metering and Proportioning System Stansteel's custom progressive metering and proportioning system conversions for existing batch plants will help increase the recycle percentage and decrease negative environmental impact.
RECON® system now offers cellular connectivity, eliminating the need for hard wiring to your network.
• With the progressive metering system, RAP is added directly to the pugmill over a gradual period of time and does not slug feed as in the typical RAP bin/chute feeders that meter to the weigh box Search: 10146948
Tarmac AC Tanks Tarmac AC Tanks have 6-in. insulation on tank sidewalls to reduce hot oil fuel costs. • Horizontal hot oil lines to increase capacity of tank • Helical coil heaters with economizers, reduces hot oil fuel costs • Fuel pre-heaters to allow heavy oil use in dryer burners • Tanks come pre-wired with conduit running to ground level
MOBILE MONITORING Get alert messages directly to your phone, tablet or PC. Record trending data of temperatures, levels, and alarms.
Recon now gives the option to display metric units or conventional U.S. units. Easily add the system to a new or existing plant. *some plants may require additional equipment.
Search: 20865883
Hauck MegaStar MultiFuel Burner
800.235.5200 www.heatec.com
Hauck introduces its MegaStar multi-fuel burner that employs variable frequency drive (VFD) technology for precise air flow control offering excellent energy and combustion efficiency. • Burner package is compact and easy to install, yet remains accessible and simple to service Search: 12017727
Search: 10073245
www.ForConstructionPros.com/Asphalt
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SPECIAL REPORT: QUALITY CONTROL |
BY JESSICA LOMBARDO, EDITOR
Using a MMS at Your
ASPHALT PLANT
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ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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Installing a moisture measurement system for your drum plant can help improve mix consistency
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he eventual quality of the roads we drive on start with consistency and quality at the asphalt plant. Excessive moisture in the aggregates can lead to serious issues with the mix. Unless all your stockpiles are completely sheltered and your feeder systems are covered from the elements, moisture will impact your asphalt content. To help combat these moisture issues more accurately, asphalt plants have started to install moisture measurement systems or MMS devices to help avoid mix deviation and maintain consistency. “Deviations in asphalt content can lead to reduced payment and nobody wants that,” Michael Worden, vice president of quality control at Pennsy Supply says. “Deviations in stockpile moisture contents, combined with other variations, can substantially reduce accuracy.” His company installed a MMS system in 2016 and has seen improved product quality ever since. WHAT IS A MMS? Using nuclear moisture and density technology, moisture measurement systems measure the moisture in an aggregate blend moving on the virgin aggregate conveyor belt. Unlike microwave probes that require contact with the material in the bin or in the stream of aggregates on the belt, the MMS is situated above the belt with the sources below the belt meaning there is no need to have physical contact with the aggregate mix or the belt. "Before we installed our MMS, our technicians could only rely on the conventional method of using oven dried stockpile samples for obtaining and
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monitoring stockpile moisture contents,” Worden says. The problem with this process is that it’s not only time consuming, taking a few hours each test, but can be unreliable, especially after rain events, as readings are typically only taken two to three times a day. “The current standard best practice for measuring stockpiles is very inefficient,” Worden says. “Techs have to get in their trucks, drive to the quarry, get a sample from each pile, bring that back and test it.” On top of the time it takes to collect the samples, the information can be unreliable as once a sample is taken, that pile is already drying out, further changing the data. “Your moisture can change throughout the day as piles are continually drying out and you have to be able to account for those changes during mix production,” Worden says. With an MMS system, measurements can be taken every second. In an 8-hour day, you could get up to 30,000 measurements, dramatically increasing
the likelihood of catching any significant changes in the moisture contents of your aggregates.
Unless all your stockpiles are completely sheltered and your feeder systems are covered from the elements, moisture will impact your asphalt content. A MMS can help.
IMPROVING MIX CONSISTENCY The asphalt content of the asphalt mix produced in a drum plant is directly affected by how much moisture is in the aggregates. “We know that better control of the moisture content in our aggregates directly impacts the asphalt content in our finished mix,” Worden says. “By better understanding these numbers, we can directly improve the consistency and quality of our mix.” Therefore, it is crucial that the plant be given accurate moisture content for those aggregates about to go into the drum and the MMS does just that. “If the moisture of your aggregates is higher than what you’ve entered into the plant’s controls, you’re going to be evaporating away a greater mass of moisture than the plant is accounting
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SPECIAL REPORT: QUALITY CONTROL It is crucial that the plant is given accurate moisture content for those aggregates about to go into the drum and the MMS does just that.
operator is also watching the MMS’s read-out like a hawk to make sure the moisture content readings are consistent, and is now able to immediately contact the technicians if there are any significant changes noted in moisture readings. That couldn’t happened before as the plant operator could only rely on the two or three daily moisture contents given to them by the lab”
for and you’re going to have too high of an asphalt content in your finished mix,” Worden says. “Conversely, if the aggregate is dryer than what you’ve entered into the plant’s controls, you’re going to be under asphalting that mix.” By taking these measurements more frequently, plant operators can better detect issues and control the quality and consistency of the mix. “This device can help you better understand any deviations in moisture content, therefore improve quality,” Worden says. “The lower the standard deviations of your data, the more
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consistent the mix is, the higher the quality it is. You can’t maintain high quality without maintaining consistency.” Worden says another unexpected benefit of the MMS device has been increased communication between the QC technicians and plant operators, keeping them highly engaged as a team. “When we initially bought it, we thought we’d be saving time from not having to go out and test samples as often,” he says. “However, we’re now testing the samples more to verify the MMS is reading correctly. Our plant
DRIVING BETTER BONUSES Like any new system, the cost can hinder industry acceptance but Worden says that wasn’t going to keep them from trying it, especially with states adopting Percent Within Limit (PWL) specs for payment and bonus processing. “Now that PWL seems to be the direction that most state agencies are going, you can be either penalized for high standard deviations or rewarded through bonuses for low standard deviations and asphalt content,” he says. Lower standard deviations means increased consistency and increased consistency is one key to increased quality. Since MMS devices can be fully integrated into the plant's control system for full automation, plant manufacturers can write programming for the devices that can act as a failsafe if the MMS system were to ever fail. “We wrote in our programming that if the MMS’s measured moisture contents drift too far from what’s expected, the plant will automatically default to the manually entered moisture content data determined by our daily stockpile moisture tests,” Worden says. “The system will alarm us if this happens, and we then work with the MMS manufacturer to get it back online.”
For more information, visit ForConstructionPros. com/21016717.
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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Retrofit Controls
A Heart Transplant for Your Plant
The control system: it’s the heart of your plant, reaching every aspect of your operation. ASTEC Retrofit Controls expand and improve your capabilities with an all new control system customized to fit your needs. It’s like a heart
‘‘
Pictured from left to right Roy Bryant, Plant Foreman Ricky Pendergrass, General Superintendent Bailey Watkins, Asphalt Plant Manager
When our outdated controls started to give us problems, we knew it was time to upgrade. We chose Astec because of the service. Astec has the absolute best service.
your Includes an updated A Stransplant T E C , for IN C .plant. an Astec Industries Company 4101Control JEROME Center, AVENUE Power • CHATTANOOGA, TN 37407 USA • 423.867.4210 • FAX 423.867.4636 • astecinc.com Center and all new The new system communicates timing and tolerances when switching mixes extremely well. Now we know when the mix is in tolerance; therefore, we waste less asphalt.
electrical switch gear.
— Bailey Watkins Asphalt Plant Manager, Fred Smith Company
’’
Search: 10072061
ASTEC, INC.
an Astec Industries Company 4101 JEROME AVENUE • CHATTANOOGA, TN 37407 USA • 423.867.4210 • FAX 423.867.4636 • astecinc.com
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QUALITY CONTROL CMI Impulse III Control System The CMI Impulse series of total asphalt plant control systems utilizes Programmable Logic Controller (PLC) technology and Windows based operator interface software to precisely control and monitor asphalt plant operations, on-site or remotely. • Total plant control featuring plant diagnostics, remote plant monitoring, step by step instructions to guide the operator through the calibration procedure, data recordation, alarm log, activity log, mix cost analysis • Impulse series comes complete with every new asphalt plant from CMI Search: 12320536
Instrotek SmarTracker Hamburg Wheel Tracker The SmarTracker is a duel wheel loaded tracking system that measures the rut resistance of asphalt mixtures. • Meets and exceeds AASHTO T-324 and all requirements and recommendations of NCHRP Project 20-07 Task 361 • Built on a rigid steel frame with key components for holding and testing samples made from stainless steel • Retractable hood keeps air and water temperatures constant and away from electrical components • Small footprint is perfect for smaller laboratories • Three tank system allows the user to perform wet and dry tests simultaneously • Each wheel is individually controlled by independent motors so if one side fails, it will not affect the other side which assures separate rutting analysis of each specimen • Once the test is complete, the wheels automatically retract out of the way Search: 20866204
Topcon SmoothRide Road Scanning System
TransTech PQI 380 On-the-Run (OTR) Non-Nuclear Roller Mounted Asphalt Density TransTech Systems PQI 380 On-theRun (OTR) non-nuclear roller-mounted asphalt density device is a non-contact, real-time system for monitoring the density of HMA during road construction. • Mounts directly to asphalt rollers • Provides real-time asphalt density measurements during rolling, unlike current intelligent compaction systems • U.S. highway design specifications for asphalt are based on density, density is reported directly Search: 12188200
The vehicle-mounted resurfacing solution for paving and milling projects uses a combination of core Topcon technologies to deliver a smooth surface while efficiently managing the quantity of material for each project. • The workflow consists of a vehiclemounted road scan, existing and finish surface design and machine control using GNSS with sonic tracker sensor guidance — each phase devised to contribute an overall time and cost savings, as well as maximize crew safety for projects
• Once the road information is gathered, operators can use Mobile Master Office point data processing software to recreate existing surface Search: 12185811
Transtec RoboTex III The RoboTex III mobile laser profiler measures three-dimensional pavement texture. • Uses a line laser to map the texture profile of a continuous pavement strip • Can profile any pavement type, including those with surface treatments • Measures in three dimensions with sub-millimeter accuracy, making it particularly suitable for pavements with complex directional texture Search: 10886735
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ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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Engineered Innovation for the Material Transfer Vehicle Market • • • • • •
Designed around clean-out to simplify daily maintenance and increase component life Variable speed elevator and conveyors reduce wear Hydraulic conveyor chain tensioner automatically sets and maintains proper chain tension Automated tire spray down decreases tack build-up with programmable spray coverage Storage hopper management system notifies crew of material level in the storage hopper Paver hopper management system maintains distance between MTV and paver and manages paver insert material level • Cat® dealer sales, service and support
www.weilerproducts.com Search: 10075409
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2019 NAPA ANNUAL MEETING January 20–23, 2019 JW MARRIOTT BEACH RESORT MARCO ISLAND, FLORIDA www.AsphaltPavement.org/AnnualMeeting
Search: 10073981
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Lowboys That Load Front & Rear... The Ultimate In Versatility! Be prepared for any loading situation with our GSL/BR series of lowboys. 35 GSL/BR
• CAPACITY: 70,000 lbs. 35 Ton Detachable Gooseneck Wetline, Dual Axle Single Point Suspension, W/Beavertail and Ramp (Optional Air Ride)
50 GSL/BR
• CAPACITY: 100,000 lbs.
50 Ton Detachable Gooseneck, Three Axle Air Ride, W/Beavertail and Ramp
Lowest Loading Angle Available!
35 GSL/PT
• CAPACITY: 70,000 lbs. 35 Ton Detachable Gooseneck Wetline, Dual Axle Air Ride Suspension, with 4' Rear Riser, Wheel Covers,Taper Beam Design
50 GSL/PT
• CAPACITY: 100,000 lbs. 50 Ton Detachable Gooseneck Wetline, Tri Axle Air Ride Suspension, with 4' Rear Riser, Wheel Covers, Taper Beam Design
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Lowest Loading Angle Available
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ANNIVERSARY
Visit our web site at EagerBeaverTrailers.com and you're a "click" away from getting all the information you need from our nearest dealer, or call 1-800-257-8163
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QUALITY CONTROL Brookfield DV2T Viscometer and Thermosel System Brookfield's DV2T Viscometer and Thermosel System with SC4-27 spindle is designed for testing asphalt binder viscosity. • Measures fluid viscosity at given shear rates • Choice of traditional standalone operation and automatic operation through programs downloaded from the PC or with complete control by PC using Brookfield RheocalcT Software • Full color graphical touch screen display • PG Flash Software can be used to program the DV2T to control all aspects of the test and data collection without the need for the operator to monitor the instrument Search: 12238923
InstroTek 3500 Xplorer Nuclear Density Gauge
ACE Auto-Grade Portable Quality Control Laboratory
InstroTek Model 3500 Xplorer is a highly advanced but very intuitive moisture density gauge with straightforward and uncomplicated operation. • Menu options are easy to read and navigate • A backlit LCD screen and special scroll functions allow operators to easily read the Xplorer’s two-line display during day or nighttime work • The simple keypad layout and program design will permit technicians to quickly move from other moisture density gauges to the Xplorer 3500 • Battery Saver and InteliCharge extend battery life keeping the gauge on the job instead of on the charger • This unit has been thoroughly tested for ruggedness and accuracy
The ACE Auto-Grade Laboratory is a fully self-contained gradation lab to automate AASHTO T11 & T27 ASTM C117 & C136 aggregate testing. • Fully portable, measuring 24-in. deep by 3-in. wide • Testing deck can range from 37 to 44-in. • Sieve sizes range from 25mm to 7.5μ, up to 15 different sizes • Sieve walls are slanted at 69° promoting motion of the aggregate and delivering a far more accurate result than a standard stack • Triangulating load cells have a maximum capacity exceeding 30,000 grams reporting to .1g.
Search:21010109
Search: 20996519
Troxler Moisture Measurement System The Troxler Moisture Measurement System (MMS) measures the moisture content of the aggregate component of a concrete or asphalt mix. • The moisture measurement occurs as the mix is moving through the plant on the conveyor belt • The moisture system is mounted on the conveyor closest to the area where moisture determination is most critical • The moisture content, combined with the knowledge of the mass proportions of the other components in the mix can be used to give a precise and reliable moisture content of the aggregate • Aggregate moisture content data can be reported on a screen or sent to your control room for added convenience • Adjustments can be made quickly during the mixing process to ensure the highest quality and most consistent mixes, less waste and more money saved Search: 21016717
Carlson Joint Density Attachment Through use of a higher angle of attack and an electrically heated element, the 4-in. bolt-on forces increased material into the side cut, greatly reducing voids and yielding higher density numbers at the joint. This enables contractors to hit specific job requirements by increasing the overall density of joints creating longer lasting and more dense joints while maintaining consistent heat with the main screed and extensions. • The electronically heated element maintains consistent heat of the element, allowing greater extrusion of material while preventing cold spots • While increasing the angle of attack, the 4-in. bolt-on does not lift the screed giving operators ease of mind while paving. • Universal attachment can be fitted on the right or left hand side Search: 12041568
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ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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TRUST LEEBOY.
AS DEPENDABLE AS YOUR DAY IS LONG. You work hard—and for all the right reasons: pride, quality, reputation, prosperity. You expect your equipment to work as hard as you do, to be every bit as tough, productive and reliable as you are. You can afford nothing less. We are LeeBoy. The name behind the world’s most dependable and productive commercial asphalt paving equipment.
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F O R M O R E D E TA I L S , P L E A S E V I S I T W W W. L E E B O Y. C O M T O F I N D Y O U R L O C A L D E A L E R .
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Improved Efficiency INCREASED PRODUCTION V-Flights Shower Material Along the Edge of the Notch as Well as the Tip
V-flights Allow for a More Even Veil of Material
FOR MORE INFORMATION VISIT ASTECINC.COM/VPAC ACON0918_32-39_QualityControlProducts_J.indd 38
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V-PAC
S TA C K T E M P E R AT U R E C O N T R O L S Y S T E M V-Pac U.S. Patent No. 8,863,404 B1
To meet market demand, we change mix design often. The frequent changes push our plants to the limit. ASTEC suggested we add the V-Pac stack temperature control system. We started using the V-Pac system and, without a doubt, it has improved efficiency and increased our production capability.
Clarke DeHart,
Production Manager, CR Jackson Inc. Operating the V-Pac Stack Temperature Control System since 2011
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JOBSITE INNOVATIONS |
BY JESSICA LOMBARDO, EDITOR
All Eyes on
oscillation Since oscillating rollers help improve productivity and create a smoother finish on challenging mixes, it’s no surprise these systems is gaining momentum in the industry
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rends in technology on construction equipment change often. While roller oscillation was developed in the 1980’s, the systems are becoming more widespread in order to combat challenging compaction applications like thin lifts. So just what is oscillation and how can it improve your business? We asked roller manufacturers to weigh in.
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WHAT IS OSCILLATION? Oscillation technology was introduced in Germany in 1983 as a solution to over compaction. “Oscillation was initially developed to provide faster, more effective compaction,” Richard Evans, vice president of sales with Hamm compaction equipment says. “Tandem rollers with one oscillation drum and one vibrating drum achieve at least the same degree of compaction as double vibrating drum rollers, but with fewer passes.” With these vibe systems, the drum stays in constant contact with the material, allowing the roller to deliver dynamic compaction energy to the asphalt layer as an alternative to traditional vibration. “Oscillation is a non-vertical force that applies energy for compaction without impact,” Mark Eckert, product manager for Volvo Construction Equipment says. In other words, there is
no vibration or up-and-down movement. The drum stays in contact with the surface, and there are no repeated impacts to the surface for compaction,” The technology cancels vertical motion of the drum and creates horizontal motion only. This provides more compaction force than static rolling but less force than traditional vibration. “With a vibratory drum, you keep impacting and impacting the mix and eventually you’re going to crush the material,” Evans says. “With an oscillation drum, the surface is the forgiving agent. The drum slides and you have no risk of crushing the aggregates.” Oscillation can help contractors achieve higher density numbers, getting them closer to bonus money simply because of the way the drum interacts with the mix. “The oscillatory compaction motion is created by eccentric weights phased
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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“Oscillation was initially developed to provide faster, more effective compaction,” Richard Evans, vice president of sales with Hamm compaction equipment says. “Tandem rollers with one oscillation drum and one vibrating drum achieve at least the same degree of compaction as double vibrating drum rollers, but with fewer passes.”
to each other create a rotary movement measured as tangential amplitude,” Bryan Downing, global sales consultant at Caterpillar, Inc. explains. “The oscillatory system creates asphalt compaction via a massaging motion which creates motion of the aggregates, allowing them to realign in a denser matrix. This massaging motion transfers compaction energy to the asphalt layer and less energy transfer into surrounding structures and infrastructure below the layer.” WHERE TO USE IT Since oscillation creates a more gentle compactive effort, the systems are especially important when working in tight spaces or on thin lifts. “These rollers are suited for compacting thin lifts, tender mixes, joints, bridge decks or when working near structures,” Bert Erdmann, heavy compaction product manager with BOMAG says. “Additionally, the oscillatory exciter system
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allows the roller to be used on mat temperatures that are lower than typically allowed for standard conventional vibration. This is mostly because oscillatory excited drums do not “impact” the asphalt mat like a conventional roller, and, therefore, they don’t crush the aggregate, as density increases are achieved through manipulation.” Sensitive applications are also ideal for rollers equipped with oscillation. “Traditional vibration can damage surrounding structures and materials,”
Eckert says. “Oscillation eliminates that higher level of force that can damage sensitive applications and the surrounding environment. Operators can turn vibration off on traditional rollers and perform static rolling or use pneumatic tire rollers, but oscillation provides enough force to achieve compaction quicker than static rolling while still not damaging the mat or adjacent structures.” This also makes oscillation compaction ideal for night work. “Many cities prefer the use of these rollers at night because they don’t make as much noise as a traditional vibratory rollers because you’re not constantly impacting the material,” Evans says. “Also, if you’re working in a downtown populated area, oscillatory rollers are a good fit because they don’t create those unwanted vibrations to the surrounding structures. “In addition, if you’re rolling over old drainage pipes, fiber optic cables, etc., you run the risk of collapsing those with a vibratory roller,” Evans continues. “You don’t have that risk with an oscillatory roller and you also won’t create cracks in neighboring structures.”
"Oscillation rollers are a complement to vibration rollers," Dynapac product manager Tim Hoffman says. "They can take the place of static rollers, maximizing flexibility of having a front drum vibrating and rear drum oscillating."
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JOBSITE INNOVATIONS
Oscillation Uses At a Glance Oscillatory compaction systems can be used on all phases of the compaction process. It delivers the best results when creating compaction in the following areas; • On thin asphalt layers – less than 2-in. • Compaction of materials with sensitive substructure or buildings • Next to buildings, on bridge decks or overpasses • Urban city vibration sensitive areas • Joint compaction • Longitudinal joints – prevents damage to existing pavements while pressing the joint between lanes tightly • Transverse joints – massaging action creates tight joint
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Oscillation is also useful for joint compaction as most asphalt contractors have to deal with hot and cold lanes when they pave. “When a paved and compacted lane has already cooled down, if you come and hit the new material with a vibratory roller, you’re not only going to push the new material down, you’re also going to compact that cold joint again and crush it,” Evans says. “Oscillation will squeeze that material down without causing any adverse effect to the cold, pre-compacted side.” HOW TO USE IT Oscillation systems do not require any additional settings or training to use as it’s considered a self-regulating amplitude that operators can turn on and off. Still, oscillation shouldn’t be used in all circumstances. It’s important contractors use conventional vibration in the breakdown (initial pass) compaction position.
“Traditional vibration can damage surrounding structures and materials,” Mark Eckert with Volvo says. “Oscillation eliminates that higher level of force that can damage sensitive applications and the surrounding environment."
“Conventional vibratory systems in the initial passes utilize higher compaction energy that will yield quicker compaction growth when mat temperatures are more conducive to compaction,” Dowling says. Therefore, oscillation is best used in the intermediate and finish positions. Due to the effective compactive nature of oscillatory rollers, many contractors find that with an oscillatory roller, they can improve productivity by eliminating that third finish roller on a jobsite and still achieve the same results. “Oscillatory rollers can be used as
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JOBSITE INNOVATIONS both intermediate and finishing rollers,” Evans say. “Often times we’ve found that the use of a typical breakdown roller and an oscillation roller will be enough to achieve compaction. The oscillation roller provides the smoothness so you don’t need to run a third roller in static mode.” Erdmann adds that oscillatory rollers typically achieve very smooth asphalt surface results since they “iron out” impact spacing marks produced by conventional vibratory rollers. As with conventional vibratory systems, operators need to ensure that machine travel speeds do not out-pace the vibratory systems. With conventional vibratory systems, optimal compaction occurs when the roller speed is set so that 10-14 impacts/foot is created. “Rolling speed control is important for oscillation as well as vibration, unlike static rolling,” Eckert says. “Rolling with oscillation versus static rolling will
reduce the number of passes necessary to achieve target densities.” Similar to conventional vibratory systems, too high of travel speed for an oscillatory system can result in undesirable surface finish and tearing and/or pushing of the asphalt layer. “A tip for operators in sensitive applications is to only use oscillation in the rear drum,” Eckert continues. “For thicker lifts that are not in sensitive applications, I recommend they engage vibration in the front drum and oscillation in the rear drum to help them achieve maximum compaction results.” Erdmann adds that contractors must also keep an eye on mat temperature when using an oscillatory system. “When the mat temperature drops, the operator must keep an eye on the temperature gauge and turn off the standard vibratory drum, once the critical temperature is reached,” he says. “The operator can continue rolling with the
oscillatory system on for approximately another 15 to 20° F, depending on the type of mix being compacted.” Most contractors know that once a mix hits 175° F, there should be no more vibration on the mix, but with oscillation, there is still time to achieve ideal density numbers. “If you have any viscosity left in the mix at all and you still need to hit those bonus numbers, you can use the oscillation as low as 130° F,” Evans says. “As long as the material is still moving, you can use oscillation safely at any temperature." This also means oscillation is ideal for compacting in cooler temperatures since you can work for longer into the season. KEEP IT RUNNING Due to the nature of oscillatory compaction, the drum stays in direct contact with the mat surface for a longer period of time compared to conventional vibration.
“These rollers are suited for compacting thin lifts, tender mixes, joints, bridge decks or when working near structures,” Bert Erdmann, heavy compaction product manager with BOMAG says.
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JOBSITE INNOVATIONS
"The oscillatory compaction motion is created by eccentric weights phased to each other create a rotary movement measured as tangential amplitude,” Bryan Downing, global sales consultant at Caterpillar, Inc. explains. “The oscillatory system creates asphalt compaction via a massaging motion which creates motion of the aggregates, allowing them to realign in a denser matrix. This massaging motion transfers compaction energy to the asphalt layer and less energy transfer into surrounding structures and infrastructure below the layer.”
With these vibe systems, the drum stays in constant contact with the material allowing the roller to deliver dynamic compaction energy to the asphalt layer as an alternative to traditional vibration.
“Over time, this can potentially lead to drum wear and a thinning of the drum shell,” Bert Erdmann with BOMAG says. “Contractors using early models of competitive oscillatory rollers in some applications had issues with reduced drum life.” However, Oscillatory roller maintenance is very similar to conventional vibratory machines.
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“Due to the nature of an oscillatory system having multiple eccentric weights to create the massaging motion, additional power transmission needs exist,” Dowling says. “The multiple eccentric weights are driven by a power transmission belts. The power transmission belt has high load-carrying capacity to ensure smooth and longlasting operation of the eccentric systems.” Therefore, it’s important to regularly check drum mount isolators and belts for damage, as well as monitor the drum
shell for thinning or wear at the edges. Operators should also listen for unusual noises. “There is increased maintenance for oscillation components like drive belts or chains,” Eckert concludes. “For many contractors, the benefits of oscillation far outweigh these issues.”
For more information on compaction, visit ForConstructionPros. com/12188306.
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JOBSITE INNOVATIONS Dynapac F800W Paver
BOMAG BW 211 DH-5 Single-Drum Roller The BW 211 DH-5 single-drum vibratory boasts a dual pump drive system, allowing the roller to climb grades as steep as 60%. • For high-production compaction of mixed soils, gravel and rock fill at depths reaching 27.6 in. • Drum can be set to 1,800 vpm with amplitude of 0.075 in. for compacting high lift thickness or to 2,040 vpm and a 0.039-in. amplitude for thinner lifts • 128-hp Deutz TCD diesel engine meets Tier 4 Final standards • ECOMODE speed control lowers fuel consumption by up to 30% • ECOSTOP function automatically shuts down the engine after a defined idle period
The Dynapac F800W wheeled paver offers a paving capacity of up to 1,000 tph and 8- to 19-ft. paving widths. • Carlson EZIV08-15 vibratory front extension screed • 34-kW, hydraulically driven, oversized generator heats the full width of the screed at all times • Smart controls automatically lock screed, halting leveling, feed and vibration when the paver comes to a stop • Dual, swing-out operator platforms • 173-hp Cummins QSB 6.7 Tier 4 Final engine Search: 12214773
Weiler E550A Windrow Elevator
Vögele Super 18003i SprayJet
Weiler's E550A windrow elevator is designed for high-production, mainline paving. • 60-in. wide throat • Slats are 58 in. wide and 7 in. deep to provide easy entry from the windrow • Wing width can be extended from 102 to 124 in. • Optional remixing attachment
Musson Rubber Vinyl Back Cocoa Mat Road Rollers are made with fibers from the almost indestructible outer husk of the coconut.
The new Super 1800-3i SprayJet paver from Vögele is designed for the placement of thin bonded overlays. • ErgoPlus 3 includes important spraying functions integrated into the menu of the large color display on the paver operator's console • With spray module removed, unit may be used as conventional paver • Maximum spray width of 19 ft. 7 in.; as a conventional paver without spray function, it can pave widths of up to 29 ft. 6 in.
• Fibers are bonded into a vinyl back (overall thickness of 1-3/16-in.), making it much easier to secure to the equipment than woven-back cocoa matting • These vinyl back Musson Road Roller Mats can be installed much easier than woven mats and can easily be cut to fit without the mat unraveling
The 24,350-lb. DD110C is powered by a 148-hp Volvo D4 Tier 4 Final engine and features an eight-amplitude drum with a 66-in. width and a high-frequency system that delivers 3,800 vpm. • Redesigned, intuitive onboard display includes an Impact Spacing Meter that allows the operator to control speed and maintain the correct impact spacing for consistent smoothness • Other features include an automatic, variable-interval water spraying system, ROPS/FOPS-certified platform, forwardview, adjustable seat and 180° rotating console • Available with Compact Assist with Density Direct, an Intelligent Compaction (IC) system that displays real-time density calculations, and the ActiveCare Direct machine monitoring service
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Musson Rubber Vinyl Back Cocoa Mat Road Rollers
• Three-point suspension system helps overcome inconsistencies on the existing surface • 114-hp turbocharged Cat C4.4 engine Search: 10983834
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Volvo DD110C Asphalt Compactor
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Hamm Easy Drive Hamm developed the new and seriescompatible Easy Drive operating concept to fulfill a vision of roller operation that is modern, easy-to-learn, and continually safe as it aids the driver with selfexplanatory, logical user guidance.
LeeBoy 8616B Conveyor Paver
• Easy Drive was first included in the DV+ series of tandem asphalt rollers and is now also available in HD+ series tandem asphalt rollers with Tier 4 engines, as well as in the H series of soil compactors • The Easy Drive system also includes a fully adjustable seat
The 20,000-lb. 8616B asphalt paver is designed with material conveyors for productivity in street and highway projects and in large commercial paving applications. • 99-hp Kubota Tier 4i diesel engine • 8- to 15-ft. Legend 816HD electric screed • 9-ton receiving hopper capacity • 12-in. AISI 4140 steel alloy cast augers with under auger cut-off gates
Carlson CP130 Commercial Paver The CP130 commercial-class paver offers a single-slide EZCSS 8-ft. to 15-ft. electrically heated screed with power extension height, power slope and power crown. • 130-hp Cummins QSF3.8 Tier 4 Final engine • One-piece forward tilting hood, large side doors and access panel in the hopper for service and accessibility to engine compartment • Armrest controls, swing-out operator stations and 3-man configuration provide optimal ergonomics and visibility • Includes fully replaceable floor plates, heavy-duty chains and slats and fully sealed auger bearings Search: 12305561
The SB-2500e Shuttle Buggy is powered by a Tier 4 Final engine. • Autotracking option automatically adjusts speed to keep a constant distance from the paver • Bindicator option indicates to the operating crew when the hopper is getting full or empty • Sliding platform on the operator’s station contributes to greater visibility Search: 12055690
(SILICA)
DUST!
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Roadtec SB-2500e Shuttle Buggy Material Transfer Vehicle
DON’T GET LEFT IN THE
Caterpillar CW16 Pneumatic Compactor
OSHA regulations are in full effect! Learn how to protect your workers and avoid OSHA fines on your construction site.
NoSilicaDust.com to learn more!
The CW16 is designed for efficient performance on highways, city streets, county roads, lane additions, industrial sites, overlays, or other mid-size jobs. • Designed for use on granular materials and all types of asphaltmix designs, the Cat CW16 pneumatic roller is available as a standard nine-wheel model with a 69-in. compaction width or as an optional 11-wheel model with an 84-in. compaction width
®
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W
ith so many options available, purchasing a new piece of equipment that meets your needs is not an easy decision. If you’re in the market for a tandem roller however, this is your best resource. Here, we’ve complied the industry’s only Tandem Roller Spec Guide, featuring equipment specifications for nearly 200 models. For an even easier way to compare, visit the exclusive, interactive and customizable version of this spec guide at http://www.forconstructionpros.com/ specguide/roller to sort and compare models based on your requirements.
HAMM/WIRTGEN GROUP HAMM compaction technology boosts paving contractor productivity and profitability. Its expanded series of DV+ rollers offers split drums for compacting tight radii with vibration front and back, or vibration-oscillation. The new HD+ 90i PH VV offers power hybrid technology, combining diesel engine for base load with hydraulic accumulator to meet peak loads, saving fuel, operating and maintenance expenditures. www.ForConstructionPros.com/10073218 Model No.
Engine HP (net)
Operating Weight (lbs.)
Drum Width (in.)
Drum Diameter (in.)
Amplitude (in.)
Frequency (vpm)
Centrifugal Force (lbs.)
Notes
HD 8 VV
20
3,484
31.5
24.4
0.020 / 0.020
3,120 / 3,900
3,600 / 5,625
vibration-vibration
HD 10 C VV
20
3,682
39.4
24.4
0.018 / 0.018
3,120 / 3,900
3,600 / 5,625
vibration-vibration
HD 10 VO
25
3,240
39.4
28.3
0.018 / 0.018
3,120 / 4,020
4.725 / 7,875
vibration-oscillation
HD 10 VV
25
5,457
39.4
28.3
0.018 / 0.018
3,120 / 4,020
4,725 / 7,875
vibration-vibration
HD 12 VO
25
6,075
47.2
28.3
0.018 / 0.018
3,120 / 4,020
5,400 / 9,000
vibration-oscillation
HD 12 VV
25
5,942
47.2
28.3
0.018 / 0.018
3,120 / 4,020
5,400 / 9,000
vibration-vibration
HD 13i VO
49
9,338
51.2
35.4
0.012 / 0.020
3,060 / 3,600
8,775 / 14,400
vibration-oscillation
HD 13i VV
49
9,184
51.2
35.4
0.012 / 0.020
3,060 / 3,600
8,775 / 14,400
vibration-vibration
HD 14i VO
49
10,000
54.3
35.4
0.012 / 0.020
3,060 / 3,600
8,775 / 14,400
vibration-oscillation
HD 14i VV
49
9,779
54.3
35.4
0.012 / 0.020
3,060 / 3,600
8,775 / 14,400
vibration-vibration
HD+ 70i VO
74
16,008
59
45
0.014 / 0.025
2,880 / 3,480
15,525 / 18,900
vibration-oscillation
HD+ 70i VV
74
15,832
59
45
0.014 / 0.025
2,880 / 3,480
15,525 / 18,900
vibration-vibration
HD+ 70i VV HF
74
15,832
59
45
0.014 / 0.025
2,700 / 4,020
16.650 / 20,700
high-frequency vibration
HD+ 80i VO
74
16,802
66
45
0.013 / 0.024
2,880 / 3,480
15,525 / 19,575
vibration-oscillation
HD+ 80i VV
74
16,626
66
45
0.013 / 0.024
2,880 / 3,480
15,525 / 19,575
vibration-vibration
HD+ 80i VV HF
74
16,626
66
45
0.013 / 0.024
2,700 / 4,020
17,325 / 20,700
high-frequency vibration
HD+ 80i VV-S
74
17,331
66
45
0.014 / 0.020
2,520 / 3,000
14,175 / 14,175
vibration with split drums
HD+ 90i VO
114
20,176
66
47
0.013 / 0.024
2,520 / 3,000
13,500 / 16,875
vibration-oscillation
HD+ 90i VV
114
20,176
66
47
0.013 / 0.024
2,520 / 3,000
13,500 / 16,875
vibration-vibration
HD+ 90i VV HF
114
20,176
66
47
0.011 / 0.019
2,700 / 4,020
15,075 / 18,900
high-frequency vibration
HD+ 90i VV-S
114
21,234
66
47
0.016 / 0.024
2,520 / 3,000
17,550 / 18,900
vibration with split drums
HD+ 90i PH VV
74.2
20,330
66.1
47.2
0.013 / 0.024
2,520 / 3,000
13,500 / 16,875
vibration with hydraulic hybrid drive
HD+ 110i VO
114
21,885
66
47
0.019 / 0.032
2,520 / 3,000
22,275 / 27,000
vibration-oscillation
HD+ 110i VV
114
22,711
66
47
0.019 / 0.032
2,520 / 3,000
22,275 / 27,000
vibration-vibration
HD+ 110i VV HF
114
22,711
66
47
0.013 / 0.029
2,700 / 4,020
28,800 / 33,075
high-frequency vibration
HD+ 120i VO
154
27,596
78
55
0.014 / 0.035
2,400 / 3,000
21,375 / 38,925
vibration-oscillation
HD+ 120i VV
154
26,976
78
55
0.014 / 0.035
2,400 / 3,000
21,375 / 38,925
vibration-vibration
HD+ 120 VV HF
154
26,802
78
55
0.011 / 0.028
2,700 / 4,020
33,075 / 38,925
high-frequency vibration
HD+ 140 VO
154
28,257
84
55
0.013 / 0.034
2,400 / 3,000
21,375 / 40,500
vibration-oscillation
HD+ 140 VV
154
27,816
84
55
0.013 / 0.034
2,400 / 3,000
21,375 / 40,500
vibration-vibration
HD+ 140 VV HF
154
27,860
84
55
0.010 / 0.027
2,700 / 4,020
33,750 / 40,500
high-frequency vibration
DV+ 70i VV-S
73
17,166
59
45
0.017 / 0.024
2,520 / 3,000
15,075 / 15,300
vibration with split drums
DV+ 70i VO-S
73
17,232
59
45
0.017 / 0.024
2,520 / 3,000
15,075 / 15,300
split-drum vibration with oscillation
DV+ 90i VV-S
99.7
21,014
66.1
47.2
0.016 / 0.024
2,520 / 3,000
17,550 / 18,900
vibration with split drums
DV+ 90i VO-S
99.7
20,617
66.1
47.2
0.016 / 0.024
2,520 / 3,000
17,550 / 18,900
split-drum vibration with oscillation
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BOMAG AMERICAS, INC. BOMAG offers three different types of vibrator/ exciter systems – standard, TanGo oscillation and Asphalt Manager directional vibration – to meet customer needs. www.ForConstructionPros.com/10072222
TanGO Oscillation
Standard (circular excited) vibration
Model No.
Engine HP
Operating
Drum Width
Drum Diameter
(net)
Weight (lbs.)
(in.)
(in.)
Amplitude (in.)
Frequency (vpm)
Centrifugal Force (lbs.)
BW900-50
20
2,646
35.4
22
0.020
4,200
3,372
BW90AD-5
20.2
3,527
35.4
22.8
0.02
2,520 / 3,780
1,799 / 3,822
BW100ADM-5
20.2
3,638
39.4
22.8
0.016
2,520 / 3,780
1,799 / 3,822
BW100SL-5
24.8
5,181
39.4
27.6
0.02
4,320
7,640
BW120SL-5
24.8
5,511
47.2
27.6
0.02
4,320
8,993
BW100AD-5
33
5,512
39.4
27.6
0.02
3,780 / 4,020
6,744 / 7,644
BW120AD-5
33
5,953
47.2
27.6
0.02
3,780 / 4,020
8,093 / 9,217
BW135AD-5
45.1
8,488
51.2
35.4
0.02
3,000 / 3,360
8,543 / 10,791
BW138AD-5
45.1
9,370
54.3
35.4
0.02
3,000 / 3,360
10,116 / 12,814
BW141AD-5
74.1
15,212
59.1
43.3
0.011 / 0.028
3,300 / 2,700
10,116 / 16,861
BW151AD-5
74.1
16,755
66.1
43.3
0.010 / 0.027
3,300 / 2,700
10,116 / 16,861
BW154AD-5
74.1
18,298
66.1
43.3
0.012 / 0.024
3,300 / 2,700
14,613 / 20,008
BW161AD-5 HF
114
22,046
66.1
48
0.016 / 0.032
4,020 / 3,000
25,628 / 27,427
BW190AD-5 HF
114
26,566
78.3
48
0.013 / 0.036
4,200 /3,000
27,876 / 39,791
BW191AD-5 HF
140.8
29,763
78.7
55.1
0.011 / 0.031
4,200 /3,000
28,102 / 39,116
BW206AD-5 HF
140.8
31,085
84.1
55.1
0.011 / 0.031
4,200 /3,000
28,102 / 39,116
BW161ADO-5
114
21,164
66.1
48
(f) 0.016 / 0.032; (r) 0.054
(f) 4,020 / 3,000; (r) 2,400
(f) 25,628 / 27,427
BW190ADO-5
114
25,353
78.3
48
(f) 0.013 / 0.035; (r) 0.053
(f) 4,200 / 3,000; (r) 2,400
(f) 27,876 / 39,791
BW191ADO-5
140.8
28,881
78.7
55.1
(f) 0.011 / 0.031; (r) 0.056
(f) 4,200 / 3,000; (r) 2,400
(f) 28,102 / 39,116
BW206ADO-5
140.8
29,542
84.1
55.1
(f) 0.011 / 0.031; (r) 0.054
(f) 4,200 / 3,000; (r) 2,400
(f) 28,102 / 39,116
BW151AD-5 AM
74.3
17,417
66.1
43.3
(f) 0-0.035; (r) 0.011 / 0.027
(f) 2,700; (r) 2,700 / 2,700
(f) 0-31,923; (r) 6,744 / 16,861
Asphalt Manager
BW161AD-5 AM
127
22,487
66.1
48
(f) 0-0.036; (r) 0.017 / 0.034
(f) 2,700; (r) 2,700 / 2,700
(f) 0-34,170; (r) 11,465 / 21,806
BW191AD-5 AM
140.8
30,644
78.7
55.1
(f) 0-0.034; (r) 0.017 / 0.037
(f) 2,700; (r) 2,700 / 2,700
(f) 0-26,977; (r) 16,861 / 36,644
BW206AD-5 AM
140.8
31,967
84.1
55.1
(f) 0-0.033; (r) 0.017 / 0.036
(f) 2,700; (r) 2,700 / 2,700
(f) 0-26,977; (r) 16,861
Pivot Steer
/ 36,644
BW154AP-4I
74.2
16,653
59.1
43.3
0.012 / 0.026
3,300 / 2,400
14,163 / 15,512
BW174AP-4F
99.6
20,283
66.1
48
0.008 / 0.018
3,600 / 2,700
13,713 / 17,985
BW154APO-4I
74.2
16,094
59.1
43.3
(f) 0.013 / 0.026; (r) 0.031
(f) 2,760 / 2,700; (r) 2,700
(f) 14,162 / 15,512
BW174APO-4F
99.6
20,944
66.1
48
(f) 0.008 / 0.018; (r) 0.029
(f) 2,760 / 2,700; (r) 2,700
(f) 13,713 / 17,985
BW154AP-4I AM
74.2
16,094
59.1
43.3
(f) 0-0.031; (r) 0.013 / 0.026
(f) 2,700; (r) 2,760 / 2,700
(f) 0-26,752; (r) 9,892 / 19,783
BW174AP-4F AM
99.6
20,944
66.1
48
(f) 0-0.028; (r) 0.008 / 0.018
(f) 2,760; (r) 2,700 / 2,700
(f) 0-32,822; (r) 7,644 / 17,985
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Sponsored by
VOLVO CONSTRUCTION EQUIPMENT With a range of intelligent features, the double-drum asphalt compactors from Volvo Construction Equipment deliver enhanced performance and productivity to meet the needs of any asphalt compaction job. www.ForConstructionPros.com/10075146 Engine HP (net)
Operating Weight (lbs.)
DD15
16.6
3,372
35.4
22
0.015
4,000
3,500
DD15 (wide drum)
16.6
3,601
39.4
22
0.016
4,000
4,000
DD25B
25
5,545
39.4
27.5
0.021
3,300 / 4,000
5,732 / 8,430
DD25B (wide drum)
25
5,776
47.2
27.5
0.0197
3,300 / 4,000
6,227 / 9,127
DD30B
49.6
6,839
49.2
29
0.015
4,000
7,500
DD35B
49.6
8,185
54.1
29.1
0.013
4,000
7,500
DD105
114
22,051
66
48
0.017 / 0.034
3,000 / 2,400
22,300 / 25,200
DD105OSC
114
21,312
66.1
48
0.06 (tangential)
2,340
32,372 / 16,186
DD110C
148
24,355
67
51
0.010 / 0.025
3,800
16,240 / 41,170
DD120C
148
27,700
79
55
0.014 / 0.0349
4,000 / 3,000
30,020 / 42,070
DD120C (8 amplitude)
148
27,700
79
55
0.0149 / 0.0276
3,400
22,980 / 42,680
DD140C
148
30,486
84
55
0.0139 / 0.0346
4,000 / 2,700
36,680 / 41,720
DD140C (8 amplitude)
148
30,486
84
55
0.0129 / 0.0249
3,200
21,810 / 42,170
Model No.
Drum Width (in.)
Drum Diameter (in.)
Amplitude (in.)
Frequency (vpm)
Centrifugal Force (lbs.)
WACKER NEUSON Wacker Neuson started with the design of smaller rollers and scaled up to larger machines with focus on the sub 4.5-ton tandem rollers. Wacker Neuson has designed their rollers with the operator in mind for many decades. Their well established dealer network provides first class support to the end user. www.ForConstructionPros. com/10075166 Model No.
Engine HP (net)
Operating Weight (lbs.)
Drum Width (in.)
Drum Diameter (in.)
Amplitude (in.)
Frequency (vpm)
Centrifugal Force (lbs.)
RD12A-90
20.5
2,690
35.4
22
0.038
4,200
3,400
RD18-80
19.8
3,483
31.5
24.4
0.02
3,900
5,620
RD18-100
19.8
3,681
39.5
24.4
0.02
3,900
5,620
RD24-100
24.8
5,456
39.5
28.4
0.02
4,020
10,341
RD24-100o*
24.8
5,566
39.5
28.4
--
2,340
10,341 / 9,000**
RD28-120
24.8
5,941
47.3
28.4
0.02
4,020
11,690
RD28-120o*
24.8
6,073
47.3
28.4
--
2,340
11,690 / 9,000**
RD40-130
49.3
8,741
51.2
35.5
0.02
3,600
14,400
RD40-130o*
49.3
8,851
51.2
35.5
--
2,340
14,000 / 16,200**
RD45-140
49.3
9,579
54.4
35.5
0.02
3,600
14,387
RD45-140o
49.3
9,777
54.4
35.5
--
2,340
14,000 / 16,200**
* Oscillating drum; ** Oscillation force
www.ForConstructionPros.com/Asphalt
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CATERPILLAR, INC. Caterpillar tandem drum rollers have versatile vibratory systems that provide a range of compaction force to enable a greater application range. www.ForConstructionPros.com/10075307
Engine HP (net)
Operating Weight (lbs.)
Rolling Width (in.)
Drum Diameter (in.)
CB1.7
24.7
3,538
35
22.5
0.019
4,200
3,057
CB1.8
24.7
3,825
39
22.5
0.019
3,900
3,057
CB22B
36.2
6,020
39
28
0.021
2,520 / 3,120 / 3,780
2,878 / 4,406 / 6,475
CB24B
36.2
6,395
47
28
0.021
2,520 / 3,120 / 3,780
3,282 / 5,013 / 7,374
CB24B XT
36.2
7,276
47
28
0.021
2,520 / 3,120 / 3,780
3,282 / 5,013 / 7,374
CB32B
36.2
6,581
51
28
0.021
2,520 / 3,120 /3 ,780
3,485 / 5,328 / 7,823
CB32B (w/Ballast)
36.2
7,462
51
28
0.021
2,520 / 3,120 / 3,780
3,485 / 5,328 / 7,823
CB34B
48.8
8,626
51
32
0.02
2,880 / 3,300
5,418 / 7,104
CB34B (w/Ballast)
48.8
9,508
51
32
0.02
2,880 / 3,300
5,418 / 7,104
CB36B
48.8
8,856
55
32
0.02
2,880 / 3,300
5,733 / 7,531
CB36B (w/Ballast)
48.8
10,119
55
32
0.02
2,880 / 3,300
5,733 / 7,531
CB7 (solid drum)
100
17,615
59
44
0.012/0.026
3,200 / 3,800
11,982 / 17,603
Two Amplitude, Two Frequency vibratory system
CB7 (solid drum)
100
17,615
59
44
0.010/0.014/0.018/0.022/0.025
3,200
6,789 / 17,288
Five Amplitude vibratory system
CB7 (split drum)
100
19,908
59
44
0.012/0.024
2,520 / 3,200
13,309 / 16,590
Two Amplitude, Two Frequency vibratory system
CB8
100
18,783
67
44
0.010/0.022
3,200 / 3,800
11,982 / 17,603
Two Amplitude, Two Frequency vibratory system
CB8
100
18,783
67
44
0.009/0.012/0.015/0.019/0.022
3,200
6,789 / 17,288
Five Amplitude vibratory system
CD8 (solid drum)
100
15,873
59-111
44
0.012/0.026
2,580 / 3,800
11,982 / 17,603
Two Amplitude, Two Frequency vibratory system
CD8 (split drum)
100
18,497
59-111
44
0.012/0.024
2,580 / 3,200
13,309 / 16,590
Two Amplitude, Two Frequency vibratory system
CB10 (solid drum)
131
20,945
67
47
0.012/0.032
2,580 / 3,800
15,714 / 18,344
Two Amplitude, Two Frequency vibratory system (Option 1)
CB10 (solid drum)
131
20,945
67
47
0.012/0.032
2,580 / 3,200
11,151 / 18,344
Two Amplitude, Two Frequency vibratory system (Option 2)
CB10 (solid drum)
131
20,945
67
47
0.028/0.034
2,580
16,389 / 19,693
Versa-Vibe vibratory system operating on low frequency
CB10 (solid drum)
131
20,945
67
47
0.010/0.015
3,800
13,084 / 19,491
Versa-Vibe vibratory system operating on high frequency
Model No.
54
Amplitude (in.)
Frequency (vpm)
Centrifugal Force (lbs.)
Notes
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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Sponsored by
CB10 (solid drum)
131
20,945
67
47
0.013/0.021/0.029/0.036/0.042
2,580
7,778 / 24,055
Five Amplitude vibratory system
CB10 (split drum)
131
20,945
67
47
0.013/0.024
2,520 / 3,200
16,973 / 19,491
Two Amplitude, Two Frequency vibratory system
CB10 (split drum)
131
20,945
67
47
0.007-0.033
2,520
6,092 / 28,977
Automatic Adjustable Compaction (AAC) vibe system operating on low frequency
CB10 (split drum)
131
20,945
67
47
0.007-0.017
3,200
9,806 / 24,976
Automatic Adjustable Compaction (AAC) vibe system operating on high frequency
CD10 (solid drum)
100
19,335
67-118
44
0.013/0.026
2,700 / 3,200
11,150 / 18,344
Two Amplitude, Two Frequency vibratory system
CD10 (split drum)
100
21,738
67-118
44
0.013/0.024
2,520 / 3,200
16,973 / 19,491
Two Amplitude, Two Frequency vibratory system
CD10 (split drum)
100
21,738
67-118
44
0.007-0.033
2,520
6,092 / 28,977
Automatic Adjustable Compaction (AAC) vibe system operating on low frequency
CD10 (split drum)
100
21,738
67-118
44
0.007-0.017
3,200
9,806 / 24,976
Automatic Adjustable Compaction (AAC) vibe system operating on high frequency
0.044
2,400
–
Standard drum
0.053
2,400
–
Hardened drum option
Rear drum oscillation system for CB10, CD10, CB13, CB15, CB16
CB13
142
27,557
79
51
0.026/0.030
2,520
16,950 / 19,963
Versa-Vibe vibratory system operating on low frequency
CB13
142
27,557
79
51
0.012/0.016
3,800
17,422 / 23,222
Versa-Vibe vibratory system operating on high frequency
CB13
142
27,557
79
51
0.012/0.019/0.026/0.032/0.038
2,520
7,800 / 24,728
Five Amplitude vibratory system
CB15
142
28,958
84
51
0.026/0.030
2,520
16,950 / 19,963
Versa-Vibe vibratory system operating on low frequency
CB15
142
28,958
84
51
0.012/0.016
3,800
17,422 / 23,222
Versa-Vibe vibratory system operating on high frequency
CB15
142
28,958
84
51
0.016/0.026/0.033/0.037/0.041
2,520
12,409 / 31,069
Five Amplitude vibratory system
CB16
142
31,941
84
51
0.026/0.030
2,520
16,950 / 19,963
Versa-Vibe vibratory system operating on low frequency
CB16
142
31,941
84
51
0.012/0.016
3,800
17,422 / 23,222
Versa-Vibe vibratory system operating on high frequency
CB16
142
31,941
84
51
0.016/0.026/0.033/0.037/0.041
2,520
12,409 / 31,069
Five Amplitude vibratory system
*NEW MODEL
WEILER The Weiler C307A and C310A Split-Drum Static Compactors enable the outer half of the drum to rotate faster than the inner half resulting in quick work on corners and curves, without mat tearing. www.ForConstructionPros.com/10075409
Model No.
Operating
Drum Width
Drum Diam-
Amplitude
Frequency
Centrifugal
(net)
Weight (lbs.)
(in.)
eter (in.)
(in.)
(vpm)
Force (lbs.)
C307A
74
20,500
50
40/53
C310A
74
26,580
50
40/53
www.ForConstructionPros.com/Asphalt
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Engine HP
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DYNAPAC USA Dynapac tandem asphalt rollers offer productivity, serviceability and optimized ergonomics. Operators achieve high-quality surface finishes through features such as soft starting and stopping to prevent unevenness or cracking. www.ForConstructionPros.com/10072810
Model No.
Engine
Operating
HP (net)
Weight (lbs.)
Drum Width (in.)
Drum Diameter
Amplitude (in.)
(in.)
Frequency (vpm)
Centrifugal Force (lbs.)
CC900G
19
2,800
35
23
0.016
4,200
3,800
CC950
20
3,100
35
23
0.016
4,200
3,800
CC800
24
3,400
31
23
0.016
4,200
3,800
CC900
24
3,500
35
23
0.016
4,200
3,800
CC1000
24
3,700
39
23
0.014
4,200
3,800
CC1100VI
25
5,300
42
28
0.02
3,660 / 3,960
6,500/5,600
CC1100VI
37.5
5,300
42
28
0.02
3,660 / 3,960
6,500/5,600
CC1200VI
25
5,700
47
27.6
0.02
3,660 / 3,960
7,600/6,500
CC1200VI
37.5
5,700
47
27.6
0.02
3,660 / 3,960
7,600/6,500
CC1300
49
8,600
51
32
0.02
3,120
7,440
CC2200
75
17,000
59
45
0.028
2,880 / 4,020
17,540
CC2300
75
18,700
59
45
0.02
2,880 / 4,020
16,190
CC3200
75
18,000
68
45
0.028
2,880 / 4,020
20,250
CC3300
75
19,800
68
45
0.02
2,880 / 4,020
17,760
CC4000VI
130
21,400
66
48
0.012 / 0.031
3,060 / 4,020
25,400 / 16,640
CC4200VI
130
22,000
66
51
0.012 / 0.031
3,060 / 4,020
28,780 / 18,80
CO4200VI
130
22,000
66
51
0.012 / 0.031 /0.06 -Osillcation Drum
3,060 / 4,020
CC5200VI
130
26,000
77
51
0.012 / 0.031
3,060 / 4,020
32,370 / 20 910
CC6200VI
130
27,300
84
51
0.031 / 0.012
3,060 / 4,020
35,300 / 23,160
CC1100CVI
25
5,100
42
28
0.02
3,660 / 3,960
6,500/5,600
CC1100CVI
37.5
5,100
42
28
0.02
3,660 / 3,960
6,500/5,600
CC1200CVI
25
5,400
47
27.6
0.02
3,660 / 3,960
7,600/6,500
CC1200CVI
37.5
5,400
47
27.6
0.02
3,660 / 3,960
7,600/6,500
56
28,780 / 18,80 /27,450-Osillation Drum
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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CC1300C
49
8,300
51
32
0.02
3,120
7,440
CC2200C
100
16,300
59
45
0.028
2,880 / 4,020
15,060 / 17,540
CC2300C
100
16,800
59
45
0.08 / 0.020
2,880 / 4,020
13,260 / 16,190
CC3200C
100
17,000
68
45
0.012 / 0.028
2,880 / 4,020
16,880 / 20,250
CC3300C
100
17,400
68
45
0.01 / 0.02
2,880 / 4,020
14,390 / 17,760
CC4000C VI
130
21,400
66
48
0.012 / 0.031
3,060 / 4,020
25,400 / 16,640
CC4200C VI
130
22,000
66
51
0.012 / 0.031
3,060 / 4,020
28,780 / 1,880
CC5200C VI
130
26,000
77
51
0.012 / 0.031
3,060 / 4,020
32,370 / 20,910
CS1400N
74
27,800
41.7 rear/ 22.4 front
59
Static
Static
Static
SAKAI SAKAI Americas offers a full complement of high frequency vibratory asphalt rollers for meeting density and smoothness requirements on HMA. www.ForConstructionPros.com/10074524
Model No.
Engine HP (net)
Operating Weight (lbs.)
Drum Width (in.)
Drum Diameter (in.)
Amplitude (in.)
Frequency (vpm)
Centrifugal Force (lbs.)
SW354
24
6,525
47
27
0.012
4,000
6,520
SW354W
24
6,745
51
27
0.011
4,000
6,520
SW504
43
8,955
51
31
0.011 / 0.014
3,300 / 3,300
5,955 / 7,710
SW504W
43
9,260
54
31
0.010 / 0.013
3,300 / 3,300
5,955 / 7,710
SW654
73
15,585
58
42
0.011 / 0.021
4,000 / 3,000
13,940 / 15,510
SW654ND
73
16,250
58
42
0.021 /
2,940 / 2,940
15,285 / 27,875
SW770HF
123
23,810
67
51
0.013 / 0.026
2,500 / 3,000 / 4,000
10,565 / 29,675
SW770ND
123
24,955
67
51
0.026 / 0.028
3,000 / 3,000
34,845 / 36,420
SW850ND
127
29,480
79
54
0.022 / 0.024
2,820 / 2,820
31,025 / 38,440
SW880-1
144
28,375
79
55
0.013 / 0.025
2,500 / 3,000 / 4,000
14,160 / 39,740
SW990-1
164
29,210
84
55
0.013 / 0.026
2,500 / 3,000 / 4,000
15,285 / 41,590
www.ForConstructionPros.com/Asphalt
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Sponsored by
HYUNDAI CONSTRUCTION EQUIPMENT AMERICAS The Hyundai HR series tandem-drum rollers offer hydrostatic vibration system at both drums and automatic vibration mode (double / single vibration) – combined with front and rear scrapers to keep the drums free of material buildup. www.ForConstructionPros.com/10073348 Model No.
Engine HP
Operating Weight
Drum Width
Drum Diameter
Amplitude
(net)
(lbs.) (with ballast)
(in.)
(in.)
(in.)
Frequency (vpm)
Centrifugal Force (lbs.)
HR25T-9
31
5,952
39
30
0.02
3,180 / 3,660
4,833 / 6,295
HR26T-9
31
6,393
47
30
0.02
3,180 / 3,660
5,620 / 7,644
HR30T-9
31
6,614
49
30
0.02
3,120 / 3,480
6,519 / 8,318
LEEBOY The LeeBoy 400 vibratory roller is available in standard and towable configurations to meet the contractors’ exact working needs. www.ForConstructionPros.com/10075155 Model No.
Engine HP (net)
Drum Width (in.)
Drum Diameter (in.)
400
24.8
400
24.8
5,640 lbs-without trailer hitch-static
40
7,000 lbs.-without trailer hitch-loaded
40
400 400
24.8
6,760 lbs-with trailer hitch-static
24.8
8,120 lbs-with trailer hitch-loaded
Operating Weight (lbs.)
Amplitude (in.)
Frequency (vpm)
Centrifugal Force (lbs.)
30
2,600
2,800
30
2,600
2,800
40
30
2,600
2,800
40
30
2,600
2,800
CASE CONSTRUCTION EQUIPMENT CASE tandem rollers offer high centrifugal forces and dual amplitudes that maximize productivity on hot-mix asphalt, while automatic vibration control delivers a smooth finish. www.ForConstructionPros.com/10072356 Model No.
Engine HP
Operating
Drum
Drum Diameter
(net)
Weight (lbs.)
Width (in.)
(in.)
Amplitude (in.)
Frequency (vpm)
Centrifugal Force (lbs.)
DV23
31.5
4,960
39.4
28
0.02
3,480 / 3,960
9,217
DV23CC
31.5
4,740
39.4
28
0.02
3,480 / 3,960
9,217
DV26
31.5
5,423
47.2
28
0.02
3,480 / 3,960
9,217
DV26CC
31.5
4,916
47.2
28
0.02
3,480 / 3,960
10,566
DV36
40.4
8,245
51.2
34
.014 - .217
3,480 / 3,960
11,240
DV45
40.4
10,296
54.3
34
.014 - .217
3,480 / 3,960
11,690
DV45CC
40.4
9,535
54.3
34
.014 - .217
2,700 / 3,420
12,364
DV209D
88.25
21,080
66
48
.013 - .0276
2,520 / 4,020
15,737 / 18,884
DV209CD
100
20,750
66
48
.0009 - .024
2,760 / 4,020
15,737 / 21,806
DV210D
88.25
22,930
66
48
.014 - .032
2,520 / 4,020
17,535 / 26,977
DV210CD
100
22,440
66
48
.009 - .024
2,760 / 4,020
18,434 / 23,605
58
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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GENCOR TRAINING SCHOOL 2019 2019 DATES Week 1: January 14 - 18 Week 2: January 21 - 25 Week 3: February 18 - 22 Week 4: February 25 - March 1 CLASS SIZE is limited so register now! REGISTRATION To secure your seat, register no later than December 14, 2018.
Improving overall plant production and efficiency are all common concerns for plant owners and operators. Having a well-trained technical crew is vital to maintaining plant performance and efficiency.
DETAILS All details can be found at www.gencor.com/ training, or call us at 407-290-6000 ext. 342.
Gencor and its training staff represent the biggest concentration of knowledge and expertise in all the sciences and technologies involved in the production of asphalt plants. Customers who attend these seminars benefit by having the support and focused attention of the best spcialists in the asphalt industry.
COME BE A PART OF THE EXPERIENCE.
Using Gencor’s state-of-the-art control simulators and actual equipment, our experts take you step-by-step through a comprehensive & intensive concentrated hands-on training program providing the latest techniques on optimizing production efficiency. 5201 N. Orange Blossom Trail
Orlando, Florida 32810
Search: 10073090
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Search: 10075240
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PRESERVATION UPDATE |
BY JESSICA LOMBARDO, EDITOR
Matching Asphalt Maintenance & Rehabilitation to the
Surface Distress
Pavement preservation is not a one fix cure-all, be sure you’re using the proper repair for the problem
A
ccording to the American Society of Civil Engineers, one out of every five miles of pavement in the United States is in poor condition. That equates to over $420 billion worth of repairs necessary for highways only. Since states are trying to do everything they can with the funding they’re given, most areas can’t even come close to combatting their road repair challenges. When funding is an issue but repairs are still necessary, states and municipalities have turned to pavement management programs for their road maintenance and rehabilitation in order to extend the life of those structures and keep the traveling public safe. Contractors need to be prepared to provide these services with the equipment and the experience necessary in order to stay competitive. PAVEMENT MANAGEMENT PROGRAMS This article is not earth-shattering, it’s basic knowledge that not all pavement preservation methods are created equal. In order for preservation efforts to be successful, we know that the right repair needs to happen on the right pavement and at the right time. To find that sweet spot, pavement management programs are created.
62
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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FOCUS O N
S U C C E S S
2019 ASTEC CUSTOMER SCHOOLS
We succeed by helping you succeed. That’s why we strive to keep our
ASTEC CUSTOMER SCHOOLS on the leading edge. Our commitment to a leading-edge service experience has helped the ASTEC CUSTOMER SCHOOLS become the industry leading training experience. The ASTEC CUSTOMER SCHOOLS cover more than any other asphalt industry training school. Expect to enhance your grasp of key aspects of plant maintenance and operation through a unique combination of lectures and extensive hands-on classes. Instructors include Astec and Heatec Engineers and Service Technicians with decades of field experience. Breaks and evening events offer the opportunity to exchange information with fellow students, as well as with Astec service professionals and engineers. During four full days of training, instructors and attendees cover topics including: • PLC Hardware • Calibration • Segregation and AC Content • Diagnostics and Troubleshooting • Trunnion Adjustment • Drum Flighting
And all plant components including: • Weighbridge • Drums • Heaters • Burners • Drag Conveyors and Silos • Baghouse and Airflows • Plant Controls • Blue Smoke
Your time at the Astec Customer Schools will also incorporate tours of the Astec and Heatec manufacturing facilities.
REGISTRATION OPENS
Tuesday, October 2, 2018
The cost per attendee is just $1,250.00 and includes:
For all customers both domestic & international
• Presentations, literature, and instructional materials
REGISTRATION DATES
• Daily transportation to and from Astec and Heatec
Wk 1 Wk 2 Wk 3 Wk 4 Wk 5 Wk 6
Jan. 7 Jan. 14 Jan. 21 Jan. 28 Feb. 4 Feb. 11
– – – – – –
Jan. 10 Jan. 17 Jan. 24 Jan. 31 Feb. 7 Feb. 14
• Meals, snacks, and evening entertainment Discounted hotel rooms are available at the The Westin Chattanooga Ask for the Astec rate when booking at 866.912.1083 $115.00 + tax.
For your convenience, we have a dedicated registration line for the Astec Customer Schools:
423.827.1899 Space is limited. Seats are first come, first serve.
ASTEC, INC.
an Astec Industries Company 4 1 0 1 J E R O M E AV E N U E • C H AT TA N O O G A , T N 3 7 4 0 7 U S A • 4 2 3 . 8 6 7 . 4 2 1 0 • a s t e c i n c . c o m
ASTEC, INC.
an Astec Industries Company 4 1 0 1 J E R O M E AV E N U E • C H AT TA N O O G A , T N 3 7 4 0 7 U S A • 4 2 3 . 8 6 7 . 4 2 1 0 • a s t e c i n c . c o m Search: 10072061
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PRESERVATION UPDATE
A pavement management program typically consists of four steps: 1. Assess current roadway condition: Addressing the current roadway condition usually consists of a mixture of tests that are used to quantify the pavement condition. Those tests include measuring skid resistance, pavement roughness (ride quality), pavement distress (FHWA distress identification manual) and assessing pavement structural condition
(through taking core sample or by using a deflectometer). 2. Predict future roadway condition: Predicting the future roadway condition is a bit more complicated but it can be done using a deterministic regression analysis. This approach uses past and current cracking conditions to create pavement trends. These trends help to predict what could happen with the pavement in the future. However, roadways typically do not follow trends. While we can try to predict future weather trends and traffic conditions, we just don’t know so many pavement management assessment programs use a probabilisitic prediction approach which incorporates, and accounts for, uncertainty. 3. Conduct alternative analysis: This step includes finding out what options you have for the type of pavement distress present. Do you need pavement maintenance or a rehabilitation process? Asphalt contractors should be prepared to address an array of pavement preservation jobs.
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J.T. Russell & Sons, Inc. placing Ultra Thin Bonded Wearing Course for NCDOT on Interstate 485 in Charlotte, NC.
4. Select appropriate alternative: Weigh your options and choose the best method for your pavement. PAVEMENT MAINTENANCE Knowing what options you have for each type of pavement distress is the best first step in completing the fourth step in your pavement management program. In addition to sealing and patching, there are generally seven different techniques of treatments for maintaining our roads. While these maintenance activities do not add structural capacity to our roadways, each one has their benefits and drawbacks depending on the condition of the pavement. 1. FOG SEALS A fog seal is a light spray of diluted asphalt emulsion that restores the very top layer of a pavement surface. Fog seals should be used when the existing roadway has
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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PRESERVATION UPDATE
A cold in-place recycling process will help to rehabilitate a pavement structure.
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surface oxidation, mild raveling and extremely minor cracking. 2. CHIP SEALS Chip seal applications consist of a spray of asphalt emulsion, followed by aggregates. A chip seal or scrub seal should be used on surfaces with oxidation, raveling, minor cracking and polished aggregate. Because you’re placing aggregate on top of the emulsion, you’re able to get enhanced surface friction. 3. SLURRY SEALS A slurry seal is a mix of asphalt emulsion and aggregates placed at 1/2-in. thick or less. They should be deployed on surfaces that have surface oxidation and raveling. Slurry seals are not recommended for pavements that have significant or large cracks. 4. MICROSURFACING Microsurfacing is similar to a slurry seal in that both techniques use a mixture of emulsion and aggregates, but during microsurfacing, a polymer modified asphalt emulsion is sprayed using a higher quality aggregate. This allows for a faster break, meaning the pavement can be reopened to traffic sooner. Microsurfacing addresses the same problems as slurry seals and cape seals do, but it can also take care of rutting. Microsurfacing cannot however, address cracking.
5. SCRUB SEALS A scrub seal is similar to a chip seal in that an asphalt emulsion is sprayed on to the pavement but behind the spray bar, a set of brooms forces the emulsion down into the cracks. After emulsion is placed, aggregates are placed on top. 6. CAPE SEALS Cape seals are a combination preservation treatment. The base of a cape seal is a chip seal or a scrub seal with a slurry seal or microsurfacing application placed on top. In addition to oxidation and raveling, slurry seals, microsurfacing and cape seals can address minor cracking, polished aggregates and mild bleeding. 7. ULTRA-THIN BONDED OVERLAY This preservation treatment involves asphalt emulsion being sprayed followed immediately by a thin lift asphalt overlay of 1-in. or less. Contractors should consider placing a ultra-thin bonded overlay on surfaces with oxidation, raveling, minor cracking and polished aggregate or on surfaces where there is pavement bleeding. PAVEMENT REHABILITATION Since pavement preservation does not add structural integrity to the roadway, sometimes you need to consider
a pavement rehabilitation process in order to maintain the safety standard of the pavement. Typically there are four options contractors have to complete these type of repairs. 1. STANDARD 2-IN. OVERLAY These thicker overlays add structural capacity which increase the amount of traffic that can be applied on the roadway. 2. HOT IN-PLACE RECYCLING (HIR) In this activity, the pavement is heated and either rejuvenated or mixed with new material to be placed in order to bring the top 1-in. to 3-in. of the pavement back to a safe condition. The HIR process helps to rejuvenate the roadway. 3. COLD IN-PLACE RECYCLING (CIR) During CIR, 3-in. to 6-in. of material is milled up and then mixed with a stabilizing agent and replaced on the roadway to address structural issues. Both CIR and HIR are good for roads with severe cracking, potholes, rutting, shoving and those roads with surface defects. 4. FULL DEPTH RECLAMATION (FDR) During FDR, the existing bound material, aggregate base and even the soil under the roadway are mixed together and rebound to create a new bound layer that provides further strength to the roadway. FDR addresses the same issue as CIR but the FDR process will also address water bleeding and pumping. Getting back to basics can help states and municipalities stay on top of their pavement maintenance and rehabilitation needs. Contractors need to be ready to assist them in their decisions and fulfillment of these best practices. This is the best defense for preserving the pavement network which will increase road life and lower costs.
For more information on pavement preservation, visit ForConstructionPros. com/11293516.
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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PRESERVATION UPDATE KM International 4-48 Infrared Infrared Heater & 4000 Hot Box Reclaimer The KM 4-48 Infrared and KM 4000 Hot Box Reclaimer is designed to fix asphalt imperfections, pot holes, bird baths or utility cuts. • Quick easy fixes within minutes that saw cut and remove would take hours to fix • Infrared also allows you to place and set Thermo Plastic and imprint markings that transform asphalt into finished product Search: 10087078
Roadtec ACE Grade and Slope Control Roadtec offers the ACE Grade and Slope Control System on all half-lane and full-lane milling machines. • Automates the elevation of the milling machine using a network of grade and slope sensors combined with one central microcontroller
LIBRA REMOTE PRINTER TERMINALS Are your ticket delivery methods stuck in the past? Consider the efficiencies of keeping the driver in the truck and delivering tickets electronically!
Experience the Advantages: Printer • Document presenter holds ticket for driver and retracts it into an internal box if not taken • Loop print presenter ensures jam-free operation by eliminating user access to the document while it is printing
• Three graphic displays provide enhanced operation, sensor availability, continuous sensor monitoring and the ability to quickly transition between sensors • Can readily incorporate the additional hardware, sensors and other components needed for single or dual averaging skis
• Best reliability of print head, cutter and presenter (2x to 10x over other thermal printers)
• Handles 3” or 4” wide paper and various paper thicknesses
Search: 12055696
• Highest-speed printing • Exceptional print quality
Enclosure • Industrial enclosure designed to house printer and paper roll • Heat shield keeps printer cool in direct sun
Wirtgen WR Series Wheeled Cold Recyclers Wirtgen offers three wheeled recyclers: the WR 200i, WR 200 XLi, WR 240i and WR 250 models. • Equipped with a powerful milling and mixing rotor as well as cutting-edge injection systems, they mill and granulate asphalt pavements, inject binding agents and water in precisely metered quantities and mix it all in a single in-place operation. Search: 12315450
• Internal heater keeps printer warm in freezing climate • Motion-activated light illuminates when enclosure is opened
For more information, contact Libra Systems via email (sales@librasystems.com) or phone (215.256.1700) Search: 10073668
www.ForConstructionPros.com/Asphalt
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PRESERVATION UPDATE Caterpillar RM500 Rotary Mixer
BOMAG BM 2000/75 and BM 2200/75 Cold Planers
The RM500 is designed for both asphalt reclamation and soil stabilization applications. • Three available rotor options • Tier III-compliant Cat C15 engine with ACERT Technology • 96-in. cutting width • 16-in. reclamation cutting depth; 20-in. stabilization cutting depth • 53,911-lb. weight
The BM 2000/75 and BM 2200/75 cold planers feature a range of milling drums, enhanced maneuverability and a large conveyor belt slewing swivel angle. • Suited to both smaller and large-scale projects • Standard width of 2,000mm or 2,200mm and a maximum milling depth of 350mm • BOMAG BMS 15 exchange holder system allows for lower operating costs
Search: 10091330
Dynapac PL2000 Cold Planer The Dynapac PL2000 hydraulically powered, highcapacity cold planer features four-track steering, a front loading system and a mechanical belt-driven cutting drum. • For removing both asphalt and concrete pavements • Working width of 79 in. and a 13-in. cutting depth • Operated by two joysticks (driving and conveyor belt functions) • Automated sequential processes for conveyor belts and water spraying system • 600-hp Cummins QSX 15 diesel engine Search: 10078174
“Hot Mix Asphalt, Paving the Highway to the Future”
C.M.Consulting
NEW COUNTERFLOW AND NEW COUNTERFLOW ANDPARALLEL PARALLELFLOW FLOWASPHALT ASPHALTPLANTS PLANTSFOR FORSALE SALE WE ARE CONSIDERING OFFERING ASPHALT PLANT OPERATOR CLASSES. Myself, John Ball, Al Hammer and Dick Sohler are weighing the options for 2 day classes in four locations around the western USA & Canada. Near Houston TX, Denver CO, Portland OR and Edmonton AB.
Neal Manufacturing Introduces Asphalt Road Preservation Package The Asphalt Road Preservation Package was designed for optimal efficiency and highquality results for both detail and high-volume sealcoating. • Package includes Neal DA 350 dual applicator for quick prep work and sealcoating around curbs and gutters and its High-Volume Road Maintenance Vehicle that delivers high material output for efficiency on large projects • The High-Volume Road Maintenance Vehicle features Neal Manufacturing’s Generation IV pump that delivers infinitely variable outputs from 0-150 gpm Search: 21010006
PavementSaver III
Rayner Equipment Systems
If you would have some interest let me know and we’ll see Counter-Flow if we can put We sell new ADM Drum Plants and Parallel Flow drum plants, things together. I would talk about Plant portable or skidded. Any configuration you might need. We have plants for Operations and trouble shooting, Al high RAP applications, configured Hot mix, Warm mix mix. Hammer would discuss Burner tuning and troublefor shooting, Dick Sohler would talkand aboutCold Electrical Call to discuss your needs. Systems and trouble shooting and John Ball would talk about our mix from the silo to finished project. the end the second day 1972 we’ll hold “Round Table”associated discussions onwith what we have learned. I haveAtbeen inofpaving since and directly asphalt plants since andBurners maintained asphalt plants in We are 1976. the SalesI &have Serviceoperated Center for Hauck for most ofhundreds the Southwestof & Western US including over 150 countries. staff Technicians service and support Alaska. In Canada we offerOur Hauck Salesof& qualified Service fromField Manitoba west. We are the ADM Asphalt Plant anything sell. US From Mix Design Compliance air quality compliance, Dealer for thewe Western & Canada. As usual we will offer Plant to Consulting, Operator training, Burnerfrom Solutions, Parts to andcomputer plant trouble issues, shooting. we Please callhelp. with anything we can help you on. mechanical can
** Winter is coming. We ASPHALT offer SPECIALS on Scheduled MANY AND USED PLANTS FOR SALE ServiceNEW & Plant Upgrades. November thru February. CALL **
Hauck ESII150 Nat Gas, Total Air burner. Nice Cond. New Controls Available .Call
MANY NEW AND USED ASPHALT PLANTS FOR SALE NEW - 1,000 gallon portable Asphalt Calibration Tank. Self-Contained .Call New Systems ADP-100 GUI480v Blending Controls 0 and SLC300 Load-Out Controls ..Call 2006 Cummins 275kW Generator. hours! Selling as USED...............Call. WylieADM 3140 SPL-110 AC Plant, Baghouse, AC tankmixer Generator. DownControl & ready House.................Call. to move ...Call 1996 Portable Drum W/NEW Portable 66,000 ACFM Pulse-Jet Baghouse in Drum good operating condition ..Call 1980s Boeing MS-200 250 TPH Portable with Slinger & Burner..........Call. Twin 200T Heated Astec Silos. Hard Lined. Cross Drag & Bucket Elev ...Call 1980s Boeing MS-300 Portable Drum Plant, Wet-Scrubber, No AC Tank......Call. New, used and rebuilt Hauck burners. Burner Controls ...Call Rebuilt GenCo AF-25 Natural Gas Burner, w/new controls & Gas-Train. Complete. New, usedMANSFIELD and rebuilt Hauck Burner Controls................Call. CLIFF INC. & Genco burners. OFFICE 541-352-7942
P.O. BOX 407Inc. Cliff Mansfield ODELL, OR 97044 P.O. Box 407
Search: 12289197
The new features of the PavementSaver III include a Control Area Network and an Autonomous Rate Control System. • Control Area Network (CAN) components make up the majority of the PavementSaver III’s control system, which benefits everyone – the owner, operator and mechanic • Features of the network include reduced wiring, IP67 environmentally-sealed components for greater durability and fast/easy system analysis • The control system constantly checks every switch, every coil, every indicator light for connectivity and functionality and alerts the operator as soon as any issues are detected Search: 12301959
FAX541-352-7942 541-352-7943 Office WWW.HOTPLANTCONSULTING.COM Fax 541-352-7943
Search: 10072464
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ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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CLASSIFIEDS
920-542-1245
dsingsime@acbusinessmedia.com
PUMP PACKING Stop your pumps from leaking!
Pre-cut packing sets proven within the Asphalt Industry. Viking®, Roper, Rotan, etc. Call Scott at 1-800-231-4209 www.rainsflo.com
Contact Denise Singsime Print and Digital Advertising
DRYER/DRUM SPECIALISTS “Serving the rock and asphalt industries since 1985” WE ARE SECOND TO NONE IN SERVICE AND SATISFACTION ALIGNMENT
Just as your vehicles need proper alignment, so does your dryer. Nearly all external dryer problems are caused by trunnion and frame misalignment. Long-term mis-alignment causes damage resulting in downtime and costly repairs. Even units that seemingly float properly can in reality be drastically out of alignment.
SIGNS OF MIS-ALIGNMENT
✔ Metal flakes from tires or trunnions ✔ Trunnion mis-location and trunnion bearing failure ✔ Poor wear/contact on tires and trunnions ✔ High drive motor amperage ✔ Excessive vibration ✔ Thrust roller and bearing damage ✔ Tire pad and keeper wear ✔ Lack of proper floatation Evans & Daniels uses precision laser and sighting techniques to restore your unit to proper alignment settings.
RESURFACING
Evans & Daniels uses highly specialized grinding equipment that can fit into the tightest of spaces. We resurface tires, trunnions, thrust rollers and tire thrust faces. We don’t require cranes, lifting assistance, or steel framework. In most cases, we can grind during regular production conditions.
COMMON WEAR PATTERNS ✔ Tapers ✔ Washboard ✔ Concave / Convex ✔ Shoulders ✔ Lumps / Divots / Cracks ✔ Rollover
TIRE & TRUNNION RESURFACING — TRUNNION ALIGNMENT — PREVENTIVE MAINTENANCE
www.evansanddaniels.com — 570-779-1982 www.ForConstructionPros.com/Asphalt
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CLASSIFIEDS Mechanical Chassis Mounted Sweeper (ES351) A proven single engine design that blends a superior collection of features which provides ownership advantages such as the tightest turning radius in the industry and a stainless steel hopper with a lifetime warranty.
Pure Vacuum (VT651/801) The street sweeper the industry benchmarks sweeper performance by that integrates exceptional versatility with unmatched features that include a high performance fuel efficient fan drive system (5 year warranty and no belts), CANbus technology to ensure maximum performance and exclusive “one pass” sweeping.
Regenerative Air Sweeper (RT 655) A highly regarded heavy duty full size (8.5 yd3 stainless steel hopper) regenerative air sweeper that delivers an optimum sweep performance along with superior fuel efficient fan drive system (5 year warranty and no belts) to achieve the lowest cost of ownership in its class.
Compact Sweeper (C201) An innovative and highly maneuverable compact sweeper for tight confined spaces that include unparalleled features such as advanced CANbus technology to deliver remarkable sweep performance along with lowest cost of ownership in its class.
We are THE ONLY sweeper manufacturer to offer an all-inclusive warranty (2 years/2,000 hours) and an “entire debris hopper” constructed of stainless steel as a standard with a LIFETIME WARRANTY.
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Endless Sweeping Solutions 105 Motorsports Road, Mooresville, NC 28115 t 704.658.1333 f 704.658.1377 e info@johnstonnorthamerica.com
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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LET'S BUILD
CLASSIFIEDS YOUR IDEAL
STRUCTURE
for nearly 40 years clearspan
has been helping companies maximize profits with superior building solutions
To find out how we can help with your structure needs visit or call www.clearspan.com 1.866.643.1010
Energy Efficient
Superior Warranties
Expert Project Managers
No Money Down Financing, Terms Up To 7 Yrs and As Low As 5.99% on buildings
BIGGER GOT BETTER MORE construction news, analysis, video, equipment
See for yourself! ForConstructionPros.com
SEPTEMBER 2018 ASPHALT CONTRACTOR
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www.ForConstructionPros.com/Asphalt
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North America’s #1 construction web portal
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CLASSIFIEDS RAP-15328 Gencor 250-ton Asphalt Storage Silo
• Safety Gates • Electric Heat on Cone
RAP-14885 STATIONARY SINGLE LEVEL CONTROL HOUSE
• 360 degre viewing • Nominal 12x12 • No Controls
• Nominal 450bbl • Approx 1558.6 cu ft in barrel, 243.7 cu ft in hopper: 1802.3 cu ft total
RAP-15071 REBUILT GENCOR HY-WAY HOT OIL HEATER
• 1.0mbtu Capacity • Pressure Tested Coil • Rebuilt PowerFlame Burner • Updated Control Box
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RAP-15410 ASTEC STATIONARY ADDITIVE SILO
• New Insulation & Metal Jacketing • Rebuilt Pump • New Motor • Primed & Painted
• Nominal 75,000cfm • Estimated mid 1990’s model year • KO box, duct, and auger • 3 section house, bags need removed for transport • Single motor exhaust fan w/ stack mount damper
• 10’6’’ diameter 18’ barrel 9’ cone 12’’ opening • Aeration system • Fill pipe system
RAP-15392 25,000GALLON COILED AC TANK
• Skinned and insulated • Skid Mounted
RAP-15337 GENCOR STATIONARY PULSEJET BAGHOUSE
• Taken out of service beginning of 2018 replaced with more and larger tanks
RAP-15086 PORT. GENCOR 8’X15’ RAP SYSTEM
• Gencor Hammermill Crusher • 75hp Motor On Crusher
• 8x15 Bin Opening • Grizzly • 15hp Motor • 36in Feeder
RAP-15380 HEATEC HOT OIL HEATER
• Heatec Hot Oil Heater • Year 1997 • Model HCS-175 • 1.75mbtu Capacity
• Power-Flame Combo Burner
RAP-15393 20,000 GALLON COILED STATIONARY AC TANK
• Skinned and insulated • Skid Mounted • AC Strainer
• Taken out of service 2018. Replaced with larger and more tanks
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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For up-to-the-minute industry news between issues,
FOLLOW US ON SOCIAL MEDIA Facebook: Asphalt.Contractor Twitter: @AsphaltContrctr Instagram: asphaltcontractor
Index Advertiser Index
PAGE
Advertiser Index
PAGE
Almix
9
SealMaster
23
Astec Inc.
13, 31, 38 – 39, 63
Stansteel
15
Carlson Paving Products Inc.
75
Systems Equipment Corp.
21, 47
Caterpillar Inc.
7
Tarmac International Inc.
14
ClearSpan Fabric Structures
71
TransTech Systems Inc.
43
C. M. Consulting
68
Troxler
45
Dillman Unidrum
16 – 17
Weiler
33
Eager Beaver Trailers
35
Willow Designs
71
E. D. Etnyre & Co.
26
Wirtgen America Inc.
5, 51, 60 -61
Evans & Daniels Inc.
69
World of Asphalt 2019
65
FastMeasure by KTP Enterprises
69
Gencor Industries Inc.
3, 19, 59
Heatec Inc.
2, 27
Johnston North America
70
LeeBoy
37
Libra Systems Corporation
67
NAPA
34
NeSilex
49
Powermoon
25
Reliable Asphalt Products
72
Roadtec an Astec Indusries Co.
11, 76
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Get fast, relevant product information in the Buyers Guide at
ForConstructionPros.com
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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THE LAST EXIT |
BY JESSICA LOMBARDO, EDITOR
Innovation Can Combat Construction Struggles
A robot known as the Tybot ties wire around rebar frames on bridge decks to keep workers off elevated jobsites, improving their safety Photo Credit: Advanced Construction Robotics.
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Manufacturers are creating technologies that can maximize efficiencies for both skilled and unskilled laborers on-site, not eliminating either role, but helping to make them more productive.
T
he “skill” in the construction industry’s skilled labor shortage is driving market change, favoring skills-reducing and efficiency-improving innovations. This is not just a matter of simply moving the work from the jobsite to the factory. Rather, opportunities for manufacturers seem to lie in creating technologies that can maximize efficiencies for both skilled and unskilled laborers on-site, not eliminate a role. There are different ways to gain efficiency with labor-saving innovations. Some innovations reduce the skill level required to install a product or system, allowing contractors to populate crews with fewer specialized workers. Some others reduce installation time, which allows a crew to do more work in a given day. Some innovations do all the above. Which of these strategies provide the best option as the construction industry continues to see unprecedented growth as the labor shortage continues?
INTEGRATION OF NEW TECHNOLOGIES There are several types of new technologies that have been slowly introduced to construction sites and these should become more widespread. Drone technology has solidified it’s way on to construction sites. A study by Software Connect found that 26% of construction professionals are already using or plan to use drones by 2020. Drones have moved away from just a marketing tool and are now being used for site preparation, quantities measurement, inspections and more. Using them can help save contractors an exceptional amount of time and money. In addition, lasers and digital technologies are improving quality and reducing waste. While both tools have been available for some time, widespread availability and lower entrance price points are making their precision available to a growing number in the workforce. “From laser levels and layout guides to laser measurers, new tools are coming on the market that are more precise and affordable,” says Russ Gardner of Calculated Industries. “Now, measurements can be accurate to one thousandth of an inch or a degree, helping improve quality and reduce material waste,” he added. Equipping employees with such tools will help them build better and faster, and taking a systematic approach to planned replacement of existing old technology with the new technology can be a cost-effective approach. Automation has also begun to tackle some of the most dangerous jobs, which is a trend we definitely expect to continue in 2018 and beyond. Robots have been used to go into pit mines, and in Pittsburgh, a robot is used to tie rebar for bridge decks.
STRIDES IN SAFETY Wearable technology can help make jobsites safer by allowing supervisors the ability to better monitor workers and equipment. These wearables use sensors to monitor activity on construction sites. Data on both worker and equipment activity can be transmitted to offsite managers in real time, allowing management to watch activity in twodimensional drawings and 3D models. In addition to productivity increases, as drones become more popular both for personal and business use, we could see the use of drone technology become a trend in construction safety. An additional aspect of construction safety is protecting your heavy equipment. When assets are in good condition, the likelihood of unexpected breakdowns decreases. Unexpected breakdowns not only have the largest impact on operations, they are typically the most costly type of maintenance. There are also the risks of unauthorized use and theft. Using equipment without permission opens the opportunity for injury to the operator, location and the asset, while a robbery means loss of project time and money to replace it. IoT technology in the form of telematics are gaining in acceptance and use and can help you manage and safeguard your assets on both fronts by providing a direct connection with your heavy equipment. Don't shy away from these helpful tools. You never know the opportunities they could bring to your company. Frank Schneider, director of Product Management for CalAmp, contributed to this story.
For more information on technology, visit ForConstructionPros.com/ Construction-Technology.
ASPHALT CONTRACTOR SEPTEMBER 2018 www.ForConstructionPros.com/Asphalt
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SM
WE ARE DEDICATED TO YOUR SUCCESS IN EVERYTHING WE DO. IT’S WHO WE ARE. We know that getting the job done safely, correctly, and profitably is a priority. That is why we offer unrivaled service, technology, and knowledge to drive your success. It is why Roadtec provides you with a level of expertise and training not found anywhere else because that is what you need.
Dedicated to Success.
© 2018 ROADTEC, INC. ALL RIGHTS RESERVED Search: 10074458
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