MAY 2020
TOP
30 PRODUCTS INTRODUCING THE 2020 TOP 30 EDITOR’S CHOICE PRODUCTS
+
RECRUITING
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TABLE OF CONTENTS |
MAY 2020
TOP
30 PRODUCTS
INTRODUCING THE 2020 TOP 30 EDITOR’S CHOICE PRODUCTS 32
TECHNOLOGY MATTERS
PRODUCTION NOTES
JOBSITE INNOVATIONS
10 Leveraging Disruption in the Asphalt Industry
22 How to Combat Inadequate Flow of Your Asphalt Plant Hot Oil System
44 Recruiting the Gen-Z Workforce
New opportunities will give your road construction business a competitive advantage.
16 Increase Construction Productivity with Mobile TimeTracking Apps Speed up or automate time-consuming administrative tasks, improve estimating accuracy, ease job costing.
It’s important to know how the system works and what can cause problems.
26 Production Products Plants, baghouses, mixers, dryers, automation systems & more to measure the quality of asphalt.
29 Cliff’s Notes This month, Cliff’s advice on this is simple: If a control house is costing you downtime, FIX IT.
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Move over Millennials, Generation-Z workers are ready to take your jobs and here’s why they’ll succeed.
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53 Preservation Products Milling machines, reclaimers, infrared equipment & more.
50 Jobsite Products Pavers, rollers, MTVs & more.
PRESERVATION UPDATE
52 Thinlays Becoming a Preservation Option Asphalt lifts thinner than 1-1/2 in. becoming more common.
IN EVERY ISSUE 8
Editor’s Perspective
58 The Last Exit
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DIGITAL CONNECTION
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Report: Reinvigoration of Federal-Aid Highway Act of 1956 Needed to Fix Interstates
[VIDEO] 5 Challenges Asphalt Contractors Will Face in 2019 While 2019 is expected to be a good year for infrastructure, there will still be some challenges asphalt contractors will face. Search: 21035405
New report says a reinvigoration of federal and state partnership that produced the Interstate Highway System is needed to save the interstates.
Top 10 Trailer Safety Tips
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Transporting equipment between jobsites requires attention to the details. Search: 21036116
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Construction Industry Hourly Pay Continues to Outpace Other Industries Average hourly earnings in construction are now 10.7% higher than the average for all nonfarm private-sector jobs. Search: 21036079 WWW.FORCONSTRUCTIONPROS.COM/ASPHALT
CONTRACTOR WWW.FORCONSTRUCTIONPROS.COM/ASPHALT WWW.FORCONSTRUCTIONPROS.COM/ASPHALT
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Get social with us! Share pictures of what you’re working with over 20,000 other asphalt contractors on our Facebook page: Facebook.com/ Asphalt.Contractor/
CONTRACTOR LATEST INNOVATIONS FOR ASPHALT PROFESSIONALS
LATEST INNOVATIONS INNOVATIONS FOR FOR ASPHALT ASPHALT PROFESSIONALS PROFESSIONALS LATEST
ASPHALT ASPHALT
May 2020 Vol. 34, No. 4
CONTRACTOR CONTRACTOR LATEST INNOVATIONS FOR ASPHALT PROFESSIONALS
LATEST INNOVATIONS FOR ASPHALT PROFESSIONALS LATEST INNOVATIONS FOR ASPHALT PROFESSIONALS
Published by AC Business Media.
Asphalt
Asphalt CONTRACTOR
CONTRACTOR
201 N. Main Street, Fifth Floor Fort Atkinson, WI 53538 (800) 538-5544 • www.ACBusinessMedia.com LATEST INNOVATIONS FOR ASPHALT PROFESSIONALS www.ForConstructionPros.com/Asphalt LATEST INNOVATIONS INNOVATIONS FOR FOR ASPHALT ASPHALT PROFESSIONALS PROFESSIONALS LATEST
6
Published and copyrighted 2019 by AC Business Media. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording or any information storage or retrieval system, without written permission from the publisher. Asphalt Contractor (ISSN 1055-9205, USPS 0020-688): is published ten times per year: January, February, March/April, May, June/July, August, September, October, November, December, with an additional Buyer’s Guide issue published in August by AC Business Media, 201 N. Main Street, Fifth Floor, Fort Atkinson, Wisconsin 53538. Periodicals postage paid at Fort Atkinson, Wisconsin and additional entry offices. POSTMASTER: Please send change of address to ASPHALT CONTRACTOR, PO Box 3605, Northbrook, Illinois 60065-3605. Printed in the U.S.A. SUBSCRIPTION POLICY: Individual subscriptions are available without charge only in the USA. The Publisher reserves the right to reject nonqualifying subscribers. One-year subscription to nonqualifying individuals: U.S. $45.00, Canada & Mexico $65.00, and $95.00 all other countries (payable in U.S. funds, drawn on U.S. bank). Single copies available (prepaid only) $10.00 each (U.S., Canada & Mexico), $15.00 each (International).
ASPHALT CONTRACTOR MAY 2020 www.ForConstructionPros.com/Asphalt
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CONTRACTOR
LATEST ASPHALT PROFESSIONALS PROFESSIONALS LATEST INNOVATIONS INNOVATIONS FOR LATEST INNOVATIONS FOR ASPHALT PROFESSIONALS
EDITOR’S PERSPECTIVE
MAY 2020 • Vol. 34, No. 4
ASPHALT
Jessica Lombardo, Editor
CONTRACTOR LATEST PROFESSIONALS LATEST INNOVATIONS FOR ASPHALTPROFESSIONALS LATEST INNOVATIONS FOR ASPHALT
Published by AC Business Media
jLombardo@ACBusinessMedia.com 920.542.1247
Managing the Modern
WORKFORCE Crews could have five generations working on jobsites and owners need to ensure their personality types are working together.
I
t’s a challenging time in the construction industry. Not only are companies having a hard time finding workers to fill their open jobs, but construction business owners also have to find ways to keep the good workers they have. While that might not have been an issue when the industry was full of Traditionalists and Baby Boomers, the newer generation of workers tend to be a bit more challenging to retain and balancing the gap of years between the oldest and youngest generations can be a struggle.
THE FIVE GENERATIONS There could be as many as five different generations working together on any given day. Who are these groups and how can you help them work successfully together? 1. Traditionalists: Raised during the Great Depression, these workers are loyal and have the years of experience needed to be successful on any job. However, they can be slower than other generations to adapt to new habits and technology. The experience they acquired and their one-on-one interpersonal skills can prove to be valuable. 2. Baby Boomers: This group finds themselves in charge of many construction projects, in managerial positions, and often like to drive the workflow and impose their leadership traits. Their self-reliance can often challenge Traditionalist work loyalties, but they are also known for their hard work and many keep working past their retirement.
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3. Generation X: These employees are also in many mid-management construction positions and find themselves comfortable supervising and mentoring others. Because this generation grew up with many technological developments, they work well with powered tools, computers and other digital tools like using PDFs over blueprints. This middle of the road perspective can be handy when tackling problems between older and younger generations. They can be tech-savvy and flexible, which empowers them to find good work/life balances for the entire company. 4. Millennials: The values and attitudes of this group will shape the future of your workplace and they want to feel valued in their careers. Millennials also share similar perspectives with older generations when it comes to being family-centric and this in part also drives them to find a better work/ life balance which can be a challenge for those used to working longer hours. 5. Generation Z: Generation Z now accounts for 20% of the available workforce. They are growing in experience and their emerging attitudes and values will not only challenge older generations to think out-of-thebox but also will influence your workforce to find new solutions and be more creative. Each of these generations has the power to influence the other positively. Construction business owners need to identify the values and attitudes of each group and work to break down the stereotypes that keep them from working together in a productive way. Read more about recruiting Gen Z workers on page 44 and check in with me at jlombardo@acbusinessmedia.com if you have any other tips.
Asphalt CONTRACTOR
201 N. Main Street | Fort Atkinson, WI 53538 800.538-5544 • www.ACBusinessMedia.com LATEST INNOVATIONS INNOVATIONS FOR FOR ASPHALT ASPHALT PROFESSIONALS PROFESSIONALS LATEST PROFESSIONALS LATEST www.ForConstructionPros.com/Asphalt
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Editor
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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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At ALmix, we offer a full line of asphalt mixing plants, products and components designed from our customers’ perspective. We take the time to understand your operation—including your goals and unique challeneges—and work with you to customize the optimal solution for your business. Then, we build everything in-house the right way, deliver and assist in the setup of your equipment and continue to stand by your side to provide service and support whenever you need it. Start a conversation with us and find out what you’ve been missing.
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TECHNOLOGY MATTERS |
BY JESSICA LOMBARDO, EDITOR
Leveraging Disruption in the
ASPHALT INDUSTRY
New opportunities will give your road construction business a competitive advantage
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hange is inevitable. As much as we’d like to keep building roadways the way we always have, the asphalt industry must adapt in order to remain competitive. While some innovations may seem far away, some technologies are ready to disrupt the construction industry and asphalt contractors need to be ready.
“Roadways can’t just be counted on to do one thing anymore,” Nicholas Webb, CEO of LeaderLogic says. “The future success of the asphalt industry will depend on selling a dynamic product with dynamic value that is not mono-functional.” Matheus Bertelli/Pexels
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TECHNOLOGY MATTERS AUTONOMOUS VEHICLES When picturing the coming age of autonomous vehicles (AVs), it’s easy for some people to get stuck on picturing the cars themselves. Their sophisticated sensors, flashy dashboards and roomy cabins have created a well-deserved buzz and interest for humans who’d like to read the paper on their way to work. In order to stay on the road, avoid collisions and obey traffic laws, AVs rely on a series of sensors that help the cars understand the environment in which they're traveling in real time. By using a combination of ultrasonic, radar, imaging and LiDAR sensors, a digital road map is formed ahead of an AV to essentially help it "see" where it's going. The problem however, is that this vehicle technology is advancing faster than our infrastructure can adapt. The U.S. Department of Transportation estimates that nearly 65% of our roadways need work and less that 5% of them are
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ready for autonomous vehicles navigation. Adding to that problem is the fact that as of right now, there are no federal funds specifically committed to getting public roads ready for these self-driving vehicles. So what are we as an industry to do? Get ready to change, and fast. Here are some ways AVs will change how we build the roads of the future: Lane Size: Lanes today are designed to account for driver wander and human error. If lanes were designed to the width of an AV, the lane width could be reduced by 20 percent. Less Signage: Signs and signals are important features of today’s transportation system as they provide drivers with the information they need to keep the transportation system running smoothly. But with the emergence of Vehicle to Vehicle (V2V) and V2I technology, future roadways will not need as many traffic signs and signals as information
can be transmitted to AVs wirelessly and in real-time. Traffic Reduction: AVs can drive more efficiently than humans can so they can ride closer together, reducing traffic and congestion. And since 93 percent of crashes are caused by human error and 25 percent of congestion is caused by traffic incidents, congestion should be reduced even further with AVs. Road Markings: This is a big one. “The most important infrastructure element on our roadway system for automated vehicles and for Advanced Driver Assist Systems (ADAS), is pavement Next-gen highway striping has been deployed on The Ray highway in Georgia with the aim of making roadways safer while also helping to accommodate advanced driving systems (ADS) technology. SHUTTERSTOCK/KTKSRH
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TECHNOLOGY MATTERS metamorworks/ iStock / Getty Images Plus
future success of the asphalt industry will depend on selling a dynamic product with dynamic value that is not mono-functional.” Webb predicts that by using these nanoparticles, highways in the future will be able to capture billions of data points and provide intervention strategies for the roadway before the cost to repair increases.
markings,” Greg Driskell, ATSSA Board of Directors member and president of Professional Pavement Products, Inc. says. “There’s a significant and almost complete reliance on pavement markings for the automated vehicle technologies of today. A lot of people think AVs mean the car drives down the road and you’re facing the other direction, working on your computer, but we have partial AVs on the road right now. Honda, Cadillacs, Chevrolets, they all have these ADAS systems and they all depend heavily on being able to see that pavement marking.” Research suggests that there will not be a significantly new requirements for road marking such as embedded microchips, however, there may be changes such as 6-inch wide edge lines, and possibly adding minimum required pavement marking retroreflectivity levels (which has been a Congressional mandate since 1993 that FHWA is still trying to fully implement). Changes likes these have been proven in multiple studies to be good for both the human driver and the machine driver. ROADS THAT CARRY MORE THAN TRAFFIC In the future, roads won’t be only good for transporting goods and services. Our future infrastructure will be able to generate power, collect data and connect our vehicles to each other to communicate vital information. Some roadways
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are already proving this can be done. The Ray project in Georgia is deemed as the nation’s first Smart Highway. Tests on this on a 18-mile stretch of a Georgia interstate use solar energy, recycled tires, vehicle telematics data and roadside right-of-way spaces in an attempt to explore how highways can become more ecologically beneficial, while generating revenue. The roadway is also gathering data through radios created by Panasonic. According to Allie Kelly, executive director of The Ray project, the radios can hear the data packet being traded between vehicles and this data has the potential to help develop safer highways. Looking at the data in real time, researchers can see that numerous vehicles activated their wipers at a certain time or that several vehicles report loss of traction. It can also see when vehicles report an air bag deployment, which suggests a collision. This data could help first responders deploy more quickly while also helping DOT officials warn other drivers and reroute them if necessary. Technologies are also emerging that will allow nanoparticle sensors to be embedded inside asphalt mixtures that can measure compaction and quality control and then relay integrity data to DOTs once the roadway is in place. “Roadways can’t just be counted on to do one thing anymore,” Nicholas Webb, CEO of LeaderLogic says. “The
A COMPETITIVE ADVANTAGE With change knocking at the door of the asphalt industry, contractors need to be ready and if we adapt fast enough, we will be positioned well against other road building materials. “We must be the disruptors for our pavement structures and our work zones to generate data that can be used for project intelligence & predictive maintenance – a service we can help provide to our customers, the road owners, road users and mobility companies – who will demand it,” Audrey Copeland, president and CEO of the National Asphalt Pavement Association (NAPA) says. Copeland says asphalt contractors should use innovative solutions such as drones, telematics and bots to collect vast amounts of data about our roadways today and use that data to better our industry. “With software advancement and Artificial Intelligence, this data can be used for insightful and actionable information for stakeholders,” she says. “We can harness data for marketing of the asphalt industry and to show customer preferences. We can turn that data in to project intelligence for the future.” The transformation of the transportation industry will depend on contractors like you who are willing to move roadway technology forward. Smart cities and highways can’t exist without a workforce willing to build them. Be an early adopter and reap the benefits of your forward thinking.
For more information on autonomous vehicles, visit ForConstructionPros. com/20985026.
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TECHNOLOGY MATTERS |
BY HOLLY HUGHES-BARNES
Increase Construction Productivity with Mobile
TIME-TRACKING APPS
shotbydave/ E+
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Speed up or automate time-consuming administrative tasks, improve estimating accuracy, ease job costing.
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S
ince the 1950s, United States agricultural and manufacturing industries have increased their productivity rates by 1,000%. In stark contrast, productivity rates for the U.S. construction industry haven’t increased at all. Thanks to the rise of construction technology, there are less obvious and less expensive ways to become
more efficient. And they don’t involve completely changing the way you build. Instead, they use mobile apps to speed up or automate time-consuming administrative tasks. So you, your employees and your subs can spend less time on “busy work” and more time on the work that moves your projects forward.
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TECHNOLOGY MATTERS ET-ARTWORKS/ DigitalVision Vectors
Replacing handwritten time cards with a mobile time-tracking app alleviates these headaches. Because, with an app, your crew can quickly punch in at any time, anywhere. And since their punches are stored electronically, they’re immediately accessible to anyone who needs to see them.
Of these apps, a construction timetracking app is one of the easiest to implement, yet has a huge impact on your overall productivity. WHAT IS A CONSTRUCTION TIME-TRACKING APP AND HOW DOES IT WORK? Construction time-tracking apps are software applications built to solve the time-tracking challenges associated with managing field teams. They install on mobile devices. And they make it easy for field crews to clock in or out — no matter which jobsite they’re on or how many sites they have to travel to in a day. And their functionality doesn’t stop there. These apps also solve a multitude of other problems — from speeding up payroll to helping your project managers more accurately estimate labor and job costs. Here are some of the most beneficial features of construction time-tracking apps: • GPS tracking: see where your workers are, when they arrived and what routes they took to get there • Geo fencing: set up geofences around your jobsites so employees can receive automatic reminders to clock in when they arrive on site • Easy scheduling: share job assignments and schedules with your entire team • Job cost reporting: assign jobs by cost code and track how much time and labor is spent on each project • Summary reporting: get a quick snapshot of how one employee or your whole crew has been spending their time • Easy accounting integration: integrate your timesheets with popular accounting software • Easy installation: work on both iOS and Android devices that your employees already use Now let’s take a closer look at how these features can make your construction company more productive.
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No more double-checking timesheet accuracy
ELIMINATE REDUNDANT TASKS WITH CONSTRUCTION | TIME-TRACKING APPS Using a time-tracking app instead of paper timesheets eliminates redundant tasks that eat up hours of your team’s valuable time. And once these unnecessary chores are eradicated they can be replaced with more important work. So you can watch your productivity levels rise. Here are several tasks you won’t have to worry about with a time-tracking app:
No more chasing down paper timesheets Paper time cards are one of the most notorious time-wasters in the construction industry. But until recently, they’ve been a necessary evil. How else could your guys in the field move from jobsite to jobsite and keep up with their hours? But getting your field crews to submit them on time is not as straightforward as it should be. Crews often get busy and put off filling out timesheets until the very end of the day, or worse, till the end of the week. So you’re often left chasing down time cards and scrambling to complete payroll on time.
Another problem with paper timesheets is that they’re often hard to read and riddled with errors. Because even if your crew doesn’t do sloppy work, they might have sloppy handwriting. And no matter how honest a person is, everyone’s memory is fallible — especially if they wait till the end of the week to fill in their time cards. So to avoid costly mistakes, you or your accounting team have to spend hours manually re-creating times, crossreferencing job numbers and doublechecking math. But, with mobile time-tracking apps, you never have to double-check your employees’ timesheets. Instead, you’ll know exactly when your employees arrive at a jobsite, when they take lunch, when they switch to another job and when they leave for the day. Because their time is tracked to the minute.
No more manual sorting or data entry for payroll Construction time-tracking apps make it easy to tie your staff’s hours to the jobs they worked without having to manually sort through piles of paperwork. And since most time-tracking apps integrate with accounting software, you can also eliminate hours spent on manual data entry. In fact, manual payroll tasks that often take six hours or longer can now be accomplished in as little as one hour with a few clicks of a mouse. And payroll isn’t the only task that becomes more efficient with a time tracking app. Time-tracking apps not only save you time by eliminating redundancies in your business but they also make the most of the time you have. Because they make many of your most important tasks more efficient.
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TECHNOLOGY MATTERS DIGITAL SHARING MAKES SCHEDULING MORE EFFICIENT With construction time-tracking apps, your workers no longer need to come into the office to pick up their schedules. And your project managers no longer have to make sure that schedules are printed out and ready. Instead, your managers can set up schedules inside the app and share them with every member of the crew. They can add important details like project addresses and labor tasks by day and by project. So your crews always know where they need to be and what they need to get done. Digital scheduling also makes collaborating between crews and departments run more smoothly. So schedule changes can be made quickly without having a negative effect on the rest of the crew — or your customers.
MORE ACCURATE REPORTS MAKE LABOR PROJECTING AND JOB COSTING MORE EFFICIENT With time-tracking apps, you can easily see which tasks were completed on each job. Plus, you can see how long it took to complete them, including travel time. Then you can create reports to help you better allocate funds for travel, as well as track labor budgets. Not only that, but you can run reports to help you compare job cost estimates to your actual job costs. So you can more accurately budget in the future. MORE ACCOUNTABILITY MAKES WORKERS MORE EFFICIENT One of the greatest benefits of using a construction time-tracking app is that your workers have a stronger sense of accountability. It’s much harder for them to lose track of the day when they
can see exactly how they’ve spent their time. And any poor work habits they’ve made while using paper timesheets often correct themselves when they track time with an app. This one benefit alone can add hours to your productivity. So, if you haven’t yet invested in a construction time-tracking app for your business, now is a good time to consider it. Holly Hughes-Barnes writes for ClockShark, a leading time tracking app for construction and field services. Hughes-Barnes is a B2B copywriter with over 20 years of construction and real estate experience. She writes authoritative blog posts, case studies, and ebooks that build trust, bring in leads and make more sales for the companies that she’s privileged to work with.
For more information on apps in construction, visit ForConstructionPros.com/ 12095311.
DESIGN. ENGINEERING. M A N U FA C T U R I N G . SERVICE. If you store liquid asphalt, blend asphalt emulsions or polymer modified asphalt, Heatec is your one source for everything from tank farms to asphalt terminals. Heatec will design and build a system for you that is efficient, durable and easy to use and provide world class parts and service support 24/7. Learn more at www.heatec.com.
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Engineered Innovation. From innovative designs to Caterpillar dealer service and support, Weiler is paving the way to success for contractors across North America. Weiler’s material transfer vehicles, commercial pavers, road wideners, windrow elevators, static split-drum compactors, soil stabilizers, rock drills, tack distributors and front mount screeds are engineered with innovative features to increase productivity while reducing operating costs. Weiler equipment is sold and serviced exclusively at Caterpillar dealers throughout North America.
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PRODUCTION NOTES |
BY JESSICA LOMBARDO, EDITOR
How to Combat Inadequate Flow of Your Hot Oil System It's important to know how the system works and what can cause problems
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he importance of good flow of hot oil in a hot oil heating system is often overlooked at hot-mix asphalt (HMA) plants. But good flow is essential to high heating efficiency and long life of the heater and oil.
KNOW THE SYSTEM Many service technicians often discover inadequate flow at plants they visit. Such plants are likely to have poor heating efficiency. The heater and hot oil are also apt to have a short life. The remedy starts with learning how the system works and what causes the problem. Consider a hot oil system heated by a
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fired-heater. Most HMA plants use such a system to heat asphalt storage tanks and other components. The oil (also known as thermal fluid) is heated as it circulates through the heating coil of the heater. The coil is heated by hot gases from a burner that is fired either by natural gas or fuel oil. The amount of heat imparted to tanks and other heated components depends on how hot the oil gets and its rate of flow as it circulates through the coil. Restrictions in the system can reduce the rate of flow. Abnormally low flow rates can allow the coil to be overheated and damaged, causing oil to break down prematurely.
If there was a simple, easy way to measure the flow rate of hot oil circulating through the coil, the heater could automatically shut off if adequate flow were lacking. Unfortunately, devices to measure flow rates directly are not well suited to hot oil systems. That’s why an indirect method is used that relies on pressure measurements.
MEASURING FLOW RATE If there was a simple, easy way to measure the flow rate of hot oil circulating through the coil, the heater could automatically shut off if adequate flow
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ULTRA-PORTABLE ASPHALT PLANTS ULTRA-PORTABLE Series The Astec Voyagerâ„¢PARTS ASPHALT PLANTS
asphalt mixing plants offer compact, highly-portable facilities designed to easily move to any jobsite, anywhere. Compact components are pre-wired to speed set-up and enhance portability. Options to produce mix with up to 50% RAP are available. In addition, the Voyager Series plants are backed by the best service support in the industry.
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PRODUCTION NOTES Not only do undersized jumpers reduce flow, they also cause unusually long heat-up times at a cold startup. Because of this, many plant operators avoid shutting off their heating systems overnight for fear of delaying production the next morning, while waiting for asphalt lines to heat up. Consequently, they miss fuel savings from shutting off the system overnight. Unfortunately, larger jumpers are not easily retrofitted to existing systems. Many service technicians often discover inadequate flow at plants they visit. Such plants are likely to have poor heating efficiency. The heater and hot oil are also apt to have a short life. The remedy starts with learning how the system works and what causes the problem.
were lacking. Unfortunately, devices to measure flow rates directly are not well suited to hot oil systems. That’s why an indirect method is used that relies on pressure measurements. Pressure is measured at the inlet to the coil and at the outlet of the coil. The difference in these two measurements is known as differential pressure (DP) and is an indirect method of measuring flow rate. Thus, a switch that reacts to DP is used on all many hot oil heaters. The switch is preset to allow the burner to operate as long as the differential pressures sensed by the switch remain within limits. The limits are established by engineers for each heater model. DIFFERENTIAL PRESSURE You may be wondering what problems or conditions cause inadequate flow and what effect they have on differential pressure. Figure one includes a list of problems and their effects on differential pressure. The illustration depicts a thermal fluid circuit with a heater coil. Please note that one of the problems listed is restricted piping. A clogged hot oil strainer and restrictions in hot oil piping are the most common causes of low flow.
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Piping restrictions are often caused by undersized hot oil jumpers used at pipe joints on heated asphalt piping. Many plants use ¾-in. jumpers, which are much too small. Many manufacturers strongly recommend use of 1½-in. jumpers. A 1½-in. jumper increases flow about three-to-five times more than a ¾-in. jumper. Not only do undersized jumpers reduce flow, they also cause unusually long heatup times at a cold startup. Because of this, many plant operators avoid shutting off their heating systems overnight for fear of delaying production the next morning, while waiting for asphalt lines to heat up. Consequently, they miss fuel savings from shutting off the system overnight. Unfortunately, larger jumpers are not easily retrofitted to existing systems.
ENSURE ADEQUATE FLOW So, no matter whether your hot oil heating is old or still in the planning stages, you should do all you can to ensure adequate flow. It really pays to consider flow—right from the start, before construction begins. But the quest never ends. You must always be alert to maintain operating conditions that ensure good flow. You should also consider the important advantages of using a multiline heater system, instead of a singleline hot oil system. Multi-line heaters significantly improve flow through all components, including the heater coil. If you're ever in doubt, reach out to your heater manufacturer.
For more information on asphalt plants, visit ForConstructionPros.com/ 12118787. This diagram illustrates the various problems that can cause abnormal flow in a thermal fluid circuit and how they affect differential pressure (DP) across the heater coil. Low flow rate is the usual cause of overheating and coil damage. Heatec
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ADM KNOWS NO LIMITS. When it comes to buying the asphalt plant that’s right for you, discover ADM. We don’t limit you to the cookie cutter solutions you find elsewhere. Instead, we get to know you and your business, so we can customize a plant for you from one of our four series of asphalt plants.
THE OPTIONS ARE LIMITLESS 260-637-5729 • admasphaltplants.com
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PRODUCTION NOTES Dillman Nomad Portable Hot Mix Asphalt Plant
Dillman Equipment Inc. - Astec Industries
Maxam Baghouses
Maxam Equipment Inc.
Maxam's baghouses are available as stationary, portable or transportable. • Pulse jet cleaning • Heated valves and compressed air header • Laser cut tubesheet • 800°F interior paint • Pitched roof • Lightweight top doors • Tool-less entry and access doors • 100-step quality assurance inspection ForConstructionPros. com/10146846
Dillman offers the Nomad series of portable asphalt plant, available in three sizes and designed for production capacities of 80, 130, or 175 tons per hour. • Intended for portability, durability and reliability, Nomad plants meet the demands of a variety of small, medium and large projects that require quality hot mix asphalt • Come complete with three or four cold-feed bins, a dryer/mixer, baghouse, drag conveyor, surge bin and air conditioned control house ForConstructionPros.com/12317449
CMI Portable Split-Level Control House
CMI Roadbuilding Inc.
The portable split-level control house incorporates an individual motor control center and operators control room on one chassis. • Control room is designed so that the operator has a higher vantage point to oversee plant operations with the added benefit of extra space underneath for storage • Both the motor control center and control room have their own independent climate control ForConstructionPros.com/21109875
RIGHTValve RIGHTPrice RIGHTNow! Dependable, Economical, Available …
Valve Types ■
Since 1892, Homestead continues to be the most reliable manufacturer of asphalt valves. With cast iron and ductile iron material options, we offer a complete source of valves for any liquid asphalt application. Our full line of hot-jacketed 2-way shutoff & 3-way diverter valves provide a ready solution to meet your flow requirements. Homestead’s cutting-edge actuation design allows you to easily add actuators to your existing Homestead valves, in-line, without modification.
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Cast Iron – to 450° F Ductile Iron – to 550° F High Temperature Seals
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Full Port – Standard Port 2-Way Shutoff and 3-Way Diverter Patterns 1"-8" Flanged and 1/2"- 4" Threaded Steam/Hot Oil Jacketed Transflo Plug Proportioning Plug
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610-770-1100 asphaltvalves.com Fax: 610-770-1108 sales@homesteadvalve.com
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©2020 Olson Technologies, Inc.
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ASTEC PARTS
CONTROLS
ASPHALT PLANTS SERVICES No other North American manufacturer ULTRA-PORTABLE INSPECTION CONTROLS offers more options than Astec. ASPHALT PLANTS SERVICES
CONTROLS
PARTSyou call, we answer. When
Your call links you to the world’s largest inventory of in-stock parts for asphalt plants. It links you to a seasoned team of experts, ready to help. It links you to world-renowned service, ready to deliver. It links you to Astec.
ASTEC PARTS: 800.251.6042
INSPECTION SERVICES
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ASPHALT PLANTS ULTRA-PORTABLE ASPHALT PLANTS
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Double Barrel // DBX // DBXHR // UniDrum CONTROLS
ULTRA-PORTABLE INSPECTION 5 BURNER CONTROLS OPTIONS ASPHALT PLANTS SERVICES
Phantom // Talon II INSPECTION //SERVICES Fury CONTROLS WhisperCONTROLS Jet // Versa Jet INSPECTION CONTROLS
SERVICES INSPECTION SERVICES
ULTRA-PORTABLE ASPHALT PLANTS ULTRA-PORTABLE ASPHALT PLANTS ULTRA-PORTABLE ASPHALT PLANTS
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ASPHALT PLANTS
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Long-term Silos // Short-Term Silos INSPECTION ULTRA-PORTABLE CONTROLS
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PRODUCTION NOTES PlantDemand Online Scheduling Tool
PlantDemand Software Company
PlantDemand software significantly improves material management and order scheduling at the asphalt plant, saving time and money. • Streamline ordering process allows plant operators, sales people, the QC team, managers and engineers to store information in a centralized location • PlantDemand increases visibility by having a single true source of information which reduces the redundancy of order taking in multiple places • Visual order calendar helps users understand what plant must do in seconds on an intuitive order calendar with optimized order entry • Save time and frustration generating reports in a few clicks • Forecast efficiently by spotting inventory run-outs or surpluses ForConstructionPros.com/21041190
MINDS, Inc. TankFarm Dashboard Mobile App Minds, Inc.
Not on-site? No problem. The TankFarm mobile app integrates with desktop asphalt plant production software to remotely monitor liquid tank farms, tank heating and boilers. • Oversee critical operations anywhere you have cell phone reception • Real-time data is constantly communicated between the plant's control system (such as DrumTronic, BatchTronic, or Emultronic) and the TankFarm app • Monitor boiler conditions such as hot oil temperature, warm oil temperature, pump status and burner status • If the boiler or tanks aren’t running within set parameters, you’ll receive alerts on your phone ForConstructionPros.com/21117847
Meeker Transfer Conveyor ADM EX10248 Asphalt Plant Asphalt Drum Mixers Inc. (ADM)
The 275 to 350 tph EX10248 Asphalt Plant from ADM meets production capacity demands and strict environmental regulations. • Single-drum counterflow system
Meeker Equipment Co. Inc. The Meeker 500-TPH transfer conveyor features bolt-in Ni-Hard cast floor liners, removable flop gate system, electric heat on floor, Rex planetary gearbox, bin indicator on headshaft and split return rollers. ForConstructionPros. com/21039189
• Innovative technology, results in the longest aggregates drying and mixing times in the industry ForConstructionPros. com/20987919
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BY CLIFF MANSFIELD
How Do You Decide When to Upgrade Your Control House?
| PRODUCTION NOTES
Cliff ’s Notes
Sometimes rebuilding means fixing the issues which have caused the control house to become a “rat’s nest” of loose and frayed wiring due to so many people trying to fix this and that problem.
If a control house is costing you downtime, FIX IT
A
s I travel around our great country visiting asphalt plants, a very important question often arises: “When do you decide to upgrade a Control House.” I don’t spend the money, so my criteria is quite clinical. If a control house is costing you downtime, fix it! If the blending computer is not reliable, replace it. Same with the burner control. The most expensive thing at any asphalt plant is downtime – $10 a ton profit, trucks, paving crew, plant repairs, outside help, etc. When I am called in to analyze a plant and recommend upgrades the first question I ask concerns the amount of downtime in the previous season and what caused it. Once I have these details I can first examine the equipment generating the problems, then formulate a plan to address them.
WHERE TO START When I examine the control house I am looking for specific things. How
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much downtime is generated by out of spec materials relating to the blending computer? How much downtime is generated by load-out problems? And how badly is troubleshooting affected by chaotic wiring. If we find that a large portion of the downtime relates to these issues then we look closely at the control house. If we can quantify the problems relating to the house high enough, we recommend rebuilding it. Sometimes rebuilding means fixing the issues which have caused the control house to become a “rat’s nest” of loose and frayed wiring due to so many people trying to fix this and that problem. For some reason people seem to seldom try to tidy up after themselves. As a result, some control panels get to looking like a big jumbled bundle of wires. The best thing to do in these cases is to simply strip out all the old stuff and build back new. So we replace all the switches with modern 22 mm stuff. We will build new VFD feeder controls, AC controls and install a new blending and load-out computers. We build a new baghouse pulse control system that is automated and linked to the AC inject so that during a
hot-stop the pulsing stops. When the plant is re-started, the pulsing picks up where it left off, rather than starting at the beginning which under certain circumstances can disrupt even dust flow and add considerably more fines when the system gets back to the bags that haven’t been pulsed in the proper sequence. We also build a new burner control and incorporate an "over-temp” shutdown safety that kills the burner if the baghouse inlet temperature exceeds 380° F. Generally we replace everything in the old control house that generated the problems. Now the plant should operate without problems relating to the control house itself. Cliff Mansfield, owner of Cliff Mansfield Inc., operates C.M. Consulting, an asphalt repairing, upgrading and operational training company. He has over 40 years of experience in the industry.
For more information on plant components, visit ForConstructionPros. com/21017366.
MAY 2020 ASPHALT CONTRACTOR
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AND YOU KNOW WE DO THIS... You know Astec for durable, reliable equipment with proven performance. A pioneering team with decades of experience and a culture committed to putting the customer first has culminated in a range of options, including drum styles, baghouse styles, and silo styles, which allow you to configure the precise plant for your needs. Astec offers a complete line of portable, relocatable and stationary asphalt plants from 80tph to 600tph.
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ENGINEERING
CONSTRUCTION
SERVICE & TRAINING
ENGINEERING
CONSTRUCTION
SERVICE & TRAINING
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ENGINEERING
CONSTRUCTION
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ENGINEERING
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ENGINEERING
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ENGINEERING
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CONSTRUCTION
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ENGINEERING
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ENGINEERING ENGINEERING
CONSTRUCTION CONSTRUCTION
SERVICE & SERVICE & TRAINING TRAINING
PARTS PARTS
ENGINEERING ENGINEERING
CONSTRUCTION CONSTRUCTION
SERVICE & SERVICE & TRAINING TRAINING
PARTS PARTS
SERVICE & SERVICE & TRAINING TRAINING
PARTS PARTS
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No other NorthENGINEERING AmericanCONSTRUCTION manufacturer offers more options than Astec. SERVICE & TRAINING
PARTS
5 BURNER OPTIONS
4 DRUM OPTIONS
Double Barrel // DBX // DBXHR // UniDrum ENGINEERING ENGINEERING
CONSTRUCTION CONSTRUCTION
SERVICE & SERVICE & TRAINING TRAINING
PARTS PARTS
2 SILO OPTIONS
2 BAGHOUSE OPTIONS
Long-term Silos // Short -Term Silos SERVICE & ENGINEERING CONSTRUCTION
Pulse Jet // Reverse Pulse ENGINEERING ENGINEERING
ENGINEERING ENGINEERING
Phantom // Talon II CONSTRUCTION // Fury ENGINEERING ENGINEERING CONSTRUCTION Whisper Jet // Versa Jet
CONSTRUCTION CONSTRUCTION
SERVICE & SERVICE & TRAINING TRAINING
PARTS PARTS
CONSTRUCTION CONSTRUCTION
SERVICE & SERVICE & TRAINING TRAINING
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TRAINING
ENGINEERING
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SPECIAL REPORT
Top 30 Editor’s Choice Picks
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or the six years now, Asphalt Contractor Magazine has chosen the Top 30 Editor’s Choice Awards. These products represent the equipment and innovations contractors have put to the test and say they can’t work without. We consider what products they’re searching for most on our website, ForConstructionPros.com, what equipment they’re sharing photos of on our social media pages and those recent equipment innovations that are gaining attention and traction on the jobsite. The result is a breadth of products that represent the new and improved as well as the tried and true. We hope these products help you get some ideas on what equipment might be a good addition to your fleet this year.
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ALmix Portable RAP System
ALmix
The ALmix Portable RAP System was design built to take the day in, day out abuse associated with normal plant production. • The RAP feeder incorporates direct connected healical gearbox and flux vector technology • Rugged bar grizzlies and air cannons to prevent material bridging are standard • RAP screens and crushers are available to process even the most difficult RAP pile • Each recycle bin is fitted with a grizzly with 6-in. openings to reject oversized materials • The grizzlies are constructed from 1/2-in. x 6-in. flat bar and is notched for cross supports to provide a smooth surface for the loader bucket • Each bin is fitted with a multiple amplitude electric vibrator and an air cannon to facilitate flow of wet, sticky RAP materials
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PAVELAB50 Automatic ClosedSystem Asphalt Analyzer Controls Group
The PAVELAB50 Automatic Closed-System Asphalt Analyzer is designed to separate bitumen, filler and aggregates from asphalt mixtures by closed-system solvent extraction. • Fully compliant with the new ASTM D8159-2018 and EN 12697-1 • Safe, quick, environmentally friendly and accurate with high repeatability ForConstructionPros.com/21069785
CWMF Revolution D Drum CWMF Asphalt
The Revolution D drum mixer is known for its heavy duty, rugged design. • This line of rotary dryers are used for asphalt, sand and specialty dryer applications • CWMF Revolution D rotary drums are manufactured for portable and stationary applications ForConstructionPros. com/21095636
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Phoenix RAPpro Recycled Hot Mix Production Plant Phoenix Industries
The RAPpro is an economically priced hot plant specifically designed to efficiently produce high quality HMA utilizing 100% RAP. • This plant utilizes a revolutionary multi-tube in-direct heated, continuous flow patentpending drum design • When coupled with PelletRAP rubberized binder material used as a RAP rejuvenator, very high quality mixes at extremely economical pricing are produced ForConstructionPros.com/21075831
Cimline MA4 Longitudinal Joint Sealing Cimline Pavement Maintenance Group
The MA4 was designed to make longitudinal joint sealing easy for any paving crew to perform and enables paving crews to invest in longitudinal joint sealant freeing them of expensive alternatives. • Since it can be towed by a 1-ton work truck the driver does not have to have a CDL license or and due to the tanks size no endorsements are required • The setup and operation is basic and allows the crew to perform the job when the timing is right for them freeing them from the constraints of contractors • Capacity: 410 gal. ForConstructionPros.com/21096327
Easy to Learn
Libra Systems NextGen Silo Safety System
Libra Systems Corp.
The NextGen Silo Safety System guards against the most dangerous and expensive accident that can occur at an asphalt plant – inadvertently opening the wrong silo. Equipment damage, personal injury, litigation and lost production are all consequences of a silo accident. The NextGen3 Silo Safety System is designed to dramatically reduce these risks. • Significantly reduces the possibility of opening the wrong silo • Independent of, and compatible with, existing automation and manual switches; it blocks attempts to open the wrong silo • No operator interaction normally needed – it’s always on guard • Automatically detects space between cab and trailer ForConstructionPros.com/21041587
www.ForConstructionPros.com/Asphalt
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A WIRTGEN GROUP COMPANY
Learn more about the VÖGELE ErgoPlus 3 at wirtgen-group.com/america
MAY 2020 ASPHALT CONTRACTOR
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SPECIAL REPORT Command Alkon APEX Asphalt Software
JWS, a division of Command Alkon
APEX Asphalt software enables trucks to check-in, load and ticket without interruption as well as controlling all of your asphalt batch operations with ease. Combined with a full range of tools for quoting, billing, reporting, performance analysis and transportation management, Apex Asphalt delivers a comprehensive solution for the asphalt supply chain. • Asphalt Batching: A single screen operator interface ensures simplified yet powerful control of your batching process that is fully integrated with the downstream processes for loadout, ticketing, logistics and back office operations • Asphalt Loadout & Ticketing: Fast, accurate truck or rail car loadout is combined with advanced ticketing software that allows for unattended loadout and ticketing. Tools to control and monitor bin/silo inventories, manage mix designs and interface to gate controls and devices are part of the comprehensive Apex solution
Wirtgen W 220 Fi and W 250 Fi Large Milling Machines Wirtgen America
The new W 220 Fi and W 250 Fi large milling machines serve a wide range of applications at a maximum milling depth of 14 in. making them ideal for surface course rehabilitation and fine milling work to complete removal of the surface.
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Ammann ACP 300 ContiHRT Asphalt Plant
Ammann America Inc.
The Ammann ACP 300 ContiHRT Asphalt-Mixing Plant is capable of producing mix consisting of more than 60% RAP. • The continuous plant features Ammann’s recycling technology which maximizes RAP utilization and meets the world’s most stringent emissions guidelines • Gentle pre-heating of the RAP, compared to traditional cold feed to superheated virgin aggregates, prevents thermal stress on the asphalt concrete (AC) content and ensures a highly homogenous final mix • Plant incorporates a RAP dryer for the addition of recycled materials and a separate cold recycling feed • Incorporate shingles, liquid, foam AC, additives, fiber granulate ForConstructionPros.com/21091313
Volvo P5110B and P5170B Asphalt Pavers Volvo Construction Equipment
The P5110B tracked and P5170B wheeled 8-ft. asphalt pavers are powered by the Volvo D6 Tier 4 Final engine, with engine speed, torque and fuel consumption optimized for performance and fuel efficiency. • Large-capacity hopper ensures continuous paving and durable rolled wings help prevent material buildup and cut cleaning time • UltiMat160 screed features extensions that can adjust paving width hydraulically from 8 ft. to 16 ft.; optional bolt-on extensions enable paving up to 18 ft. • Three-phase AC power screed heating system for fast screed heat-up times ForConstructionPros.com/21108632
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• Various drive concepts are available to ensure maximum, optimal milling performance • With an engine power of 801 hp (W 220 Fi) and 1,010 hp (W 250 Fi) respectively, the two flagship models are exceptionally powerful • In automatic mode, the Mill Assist standard assistance system provides the optimal balance between performance and operating costs. This not only improves milling performance, but also reduces diesel, water, and pick consumption, as well as CO2 emissions • Operator can preselect a working strategy from “Cost-optimized”, “Performance-optimized” or “Milling texture quality”. For example, it is possible to define the required milling texture quality on a scale of 1 (coarse) to 10 (very fine) in advance at the touch of a button • Mill Assist automatically controls the two-speed Dual Shift powershift transmission. In combination with the diesel engine, the milling drum speeds can be increased or decreased, making it suitable for a vast range of applications. At lower speeds, fuel and pick wear can be significantly reduced. At higher speeds, high milling pattern quality is ensured even in the case of high area performances ForConstructionPros. com/21108870
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Astec Mobile Screens Launches Ranger Compact Track Line KPI-JCI - Astec Mobile Screens
Astec Mobile Screens Ranger line of compact track equipment includes a variety of jaw crushers, impact crushers, cone crushers, incline screens and trommels. • These compact units serve a variety of new markets including building and construction, landscaping, quarry operations and plant and tool hire • The ease-of-use, ease-of-transport, versatility and flexibility of compact, trackmounted units make them ideal for smaller operations that require powerful equipment with a limited footprint • The Ranger line is represented by a network of dealers that have the capacity to support the equipment and sustain a strong rental program for its customers ForConstructionPros.com/21105604
Gencor G Series Asphalt Plant Gencor Industries Inc.
The new Gencor G Series is the latest innovation in small portable hot mix plants providing asphalt producers and contractors with all the features of Gencor’s award-winning Ultraplant in a smaller, compact, highly mobile plant that can be erected virtually anywhere.
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• The G Series is a rugged designed plant built with all the same premium features you’ve come to expect from Gencor for years of dependable service • The firing end of the burner extends into the dryer beyond the mix section so as not to overheat the aggregates and liquid asphalt
CASE PT240D Pneumatic Roller
Case Construction Equipment - CNH The Tier 4 Final PT240D pneumatic roller has an operating weight of 21,380 lbs. and the ability to ballast up to 52,910 lbs. • Tire configuration (four in front and four in back) features a 2-in. overlap and a total compaction width of 78 in. • Kneads hot-mix asphalt gently at the surface as it rolls for greater asphalt density and fewer voids in the finished product • Iso-static front axle allows each of the front tires to oscillate 3° in either direction, as well as up and down • All primary service points centrally grouped for ease of access
Easy to Operate
ForConstructionPros. com/21113079
ForConstructionPros. com/21108631
Roadtec SB-3000 Material Transfer Vehicle
Roadtec Inc. - Astec Industries
The SB-3000 is an all-new Shuttle Buggy Material Transfer Vehicle (MTV) that reinvents the MTV category. With 25 tons of storage in the main hopper, the SB-3000 can hold more than 30 tons of material to help crews maintain nonstop paving and remixing for the best possible mat. • New operator stations are focused on safety and comfort. The main operator is closer to the action while maintaining excellent sight lines and the ground operator is protected inside the structure of the machine • Cummins, QSB6.7, Stage 5 engine • 310 hp, 30-ton capacity • 4-wheel steer
A WIRTGEN GROUP COMPANY
Learn more about the VÖGELE ErgoPlus 3 at wirtgen-group.com/america
ForConstructionPros.com/21108856
www.ForConstructionPros.com/Asphalt
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MAY 2020 ASPHALT CONTRACTOR
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SPECIAL REPORT Sakai GW754 Vibratory Pneumatic Roller Sakai America, Inc.
The Sakai GW754 vibratory pneumatic tire roller is widely versatile for various types of materials from hot mix asphalt (HMA) mixes to soils. • Vibrating tires massage materials dynamically and compact them more uniformly which helps to cut operating cost on jobsite by the versatility and high-compactive efforts • Tier 4 final Kubota V3800 turbo charged engine, rated at 110 hp and equipped passive regeneration • Traveling speed of 7.5 mph • 2400 vpm and four amplitude settings, which are changeable on the fly • Smaller size of machine, weighing 22,440 lbs., vs. static pneumatic tire roller which weighs 55,000 lbs. • Single-seat operator station layout with 180° of easy-rotation • GW754 as it has a maximum of 45 dB at 50 ft. on the maximum amplitude setting for quiet compaction operations required for bridge deck and in residential area ForConstructionPros.com/21109564
Superior Industries P500 Patriot Cone Crusher Superior Industries
The P500 Patriot Cone Crusher is engineered to operate most effectively at 500hp with a head diameter of 59-in. maximum feed opening of 13.5-in. and closed side settings from 3/8 in. - 2-in.
MINDS, Inc. PlantManager Dashboard MINDS Inc.
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• Inverted or reverse design of tramp relief cylinders ensure the hydraulic seals are not exposed to contamination during operation • Tramp relief system designed with fewer accumulators for less maintenance. An automatic pressure relief valve for additional protection • Universal crushing chamber design requires no major, time-consuming change outs when transitioning from secondary to tertiary applications • If loss of clamping pressure, counterclockwise countershaft rotation causes crusher to open rather than turn down
The PlantManager gives plant owners a 30,000- ft. bird’s-eye view of your company's plants all in one powerful dashboard to help spot issues at a glance and drill down into production and job data. • Multi-plant dashboard with all key numbers per location • Individual plant production details allow you to see real-time and historical of all production data like flow rate, tonnage, RAP, liquid asphalt and aggregate percentage and moisture, temperatures, deviations, etc. • Individual plant energy details measure current and historical energy consumption in KWh/T, BTUs/T, or Therms/T so plant owners can compare actual energy use with theoretical need based on mix and ambient temperatures, moisture and type of fuel
ForConstructionPros. com/21111775
ForConstructionPros. com/21117844
BOMAG Launches Alternative Fuel Options for BW 120 AD-5 Tandem Roller BOMAG Americas Inc.
Three different solutions for the BW 120 tandem vibratory roller are now available: traditional diesel, electric and liquid petroleum gas (LPG). • The traditional diesel-powered BW 120 AD-5 roller features a 33-hp Kubota engine with diesel particulate filter (DPF) that meets stringent Tier 4 Final emissions standards • For indoor, tunnel, inner city and construction projects that require meeting higher environmental standards, the BOMAG BW 120 AD-5 offers two alternative drive model concepts: the electric drive BW 120 AD-5 E and gas BW 120 AD-5 LPG • Offering a fast, 5-minute tank exchange, the liquid petroleum gas BOMAG BW 120 AD-5 LPG alternative drive is perfect for innercity applications and construction projects with extremely tight environmental standards. This LPG model generates 15 percent less fine dust emissions than the traditional diesel engine model with DPF, 95 percent less NOx emissions and 15 percent less CO2 than comparable gas and diesel models. Additionally, environmental impacts due to fuel spillage are eliminated, and gas is not water-soluble, so it cannot contaminate groundwater
• The BW 120 AD-5 LPG delivers an operating time of up to 5 hours in between tank exchanges, offering ample reserve to get the machine through an average work shift ForConstructionPros. com/21118970
ASPHALT CONTRACTOR MAY 2020 www.ForConstructionPros.com/Asphalt
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LeeBoy 8530 Asphalt Paver VT LeeBoy
A turbo-charged 125-hp engine, enhanced cooling systems, independent hopper wings, reversible augers and conveyors, hydraulic tow point cylinders, material cut-offs that automatically close in reverse and quick change auger assemblies are just part of versatility designed within the new LeeBoy 8530 Asphalt Paver. • Weighing 4,150 lbs, the Legend HD PRO Screed standard features include heavyduty flight screws, heavy-duty crown and valley mechanism an angle-of-attack adjuster with vertical height adjustment, sloping screed extensions and pre-strike off adjustment • Stylish operator platform combined with a low-profile hood line gives operators heightened visibility with no line-of-sight disruption • Dual operator control platforms accompanied by multi-position, pivoting seats ensure a comfortable yet productive work environment • Service design features of the 8530 include an actuator-driven hood lift, front conveyor chain adjustments, auger single-lube system and ground-level access point ForConstructionPros.com/21115855
Astec Inc. Versa Jet Burner
Easy to Control
Astec Inc. - Astec Industries
Ideal for retrofit applications or anytime versatility is required, the Astec Inc. Versa Jet Burner features an adaptable design is compatible with virtually all drum designs without complicated drum modifications. • One versatile platform can be quickly configured to fire at 25, 35 or 50MM BTU/hr; All 3 models are 25 hp • Highly adaptable burner combines three burner packages in one platform which can be easily adapted for the system at the install site • The unique platform of the Astec Versa Jet burner permits quick delivery and setup which minimizes downtime while maximizing profitability • Streamlined design ensures that these burners are ready to ship to your site quickly and can be installed with minimal modifications needed • Base burner does not include the fuel train, ideal when a functional fuel train is already on-site and available to be used • Configurable – optional fuel trains can be either component only or a straight-line, rack mount • Designed for quick delivery • Fuel options: Heavy oil, light oil, natural gas, and vaporized propane • Easy to service / low maintenance ForConstructionPros.com/21121730
www.ForConstructionPros.com/Asphalt
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A WIRTGEN GROUP COMPANY
Learn more about the VÖGELE ErgoPlus 3 at wirtgen-group.com/america
MAY 2020 ASPHALT CONTRACTOR
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SPECIAL REPORT HAMM Introduces WITOS for Compaction
Wirtgen Group
Trimble WorksOS Helps Connect Pivotal Construction Workflows Trimble Navigation Ltd.
Trimble WorkOS is a cloud-based system that will integrate data from Trimble and third-party providers across the entire civil construction project lifecycle, including estimating, scheduling, designs and the field. The Trimble WorksOS preview will demonstrate 3D productivity and real-time progress to plan to bring next-generation, real-time visibility from the jobsite to the back office. • Currently, site supervisors and project managers jump between multiple systems to keep track of daily production quantities, labor/ equipment hours and equipment maintenance schedules. In spite of using all of these systems, they still do not have real-time visibility into progress on the jobsite and its impact on schedule/cost • With WorksOS, users will be able to log into a single application to view real-time visibility of cut, fill, volume and compaction data to maximize jobsite productivity • Site supervisors will also gain live daily volume calculations, compaction quality metrics and visibility into which machine is working, to monitor progress and determine if the project is on schedule • Connecting workflows, Trimble WorksOS will integrate Trimble Business Center, Trimble WorksManager, Trimble Siteworks Positioning System, Trimble Earthworks Grade Control Platform and Trimble PULSE® Fleet and Equipment Management Software to bring industry-leading solutions together to benefit all phases of the construction life cycle ForConstructionPros. com/21121174
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HCQ Navigator from HAMM uses a panel PC in the roller cabin to provide a live indication to roller drivers of the points that were already sufficiently compacted or where further compaction is necessary. This prevents over- and under-compaction while helping to optimize the number of passes. • HCQ makes it possible monitor the compaction progress – in real time • HAMM is allowing more sustainable compaction in asphalt construction and earth work since supervisors can stay informed about the detailed construction progress at all times with WITOS HCQ – without ever traveling to the site • HCQ Navigator saves all of the data that is recorded during the compaction process ForConstructionPros.com/21122245
Dynapac SD Asphalt Paver Range with “THE” High Compaction Screed Dynapac North America LLC
Carlson Paving Products EZ C34 High-Compaction Tamper Bar Screed
Carlson Paving Products - Astec Industries Featuring a standard pave width of 5 ft., 10 in. – 11 ft., 2 in., the EZC34 TV screed represents Carlson’s first tamper bar platform and entrance into the global 1.8m market. A single tamper bar configuration, the EZC34 TV electrically heated screed showcases many of Carlson’s leading screed features for unparalleled mat quality and unequaled reliability. • Exclusive extension support system with high-strength aluminum extrusion • Adjustable slide block bushings with the most contact in its class for consistent mat quality and maintaining level longer • Power screed functions available
The SD2500CS paver will include the latest operator-assist technology systems such as Truck Assist, Light Assist, Width Assist and Screed Assist systems. The newly designed electric roof assist and electric rock deflector further shows Dynapac’s commitment to provide the best operator comfort • The SD2500CS paver will be paired with a newly developed V5100THE tamper, high-compaction electric screed and will be displayed with extensions attached to pave 27-ft. • Dynapac’s “THE” high-compaction screed technology, which allows for a flexibility of adjusting pressure and vibration parameters for optimal results, will further assist contractors to achieve higher precompaction levels while paving thicker pavements and smoother finish on top layers. The unique pressure bar system allows up to 1,000-psi pressure to be applied uniformly across the whole width of pavement ForConstructionPros. com/21120779
ForConstructionPros. com/21121726
www.ForConstructionPros.com/Asphalt
4/15/20 7:39 AM
A WIRTGEN GROUP COMPANY
VÖGELE ErgoPlus 3 is Paving Made Easy
Training Made Easy
Operating Made Easy
Control Made Easy
Train, operate, control: do it all, effortlessly, with the world’s easiest paving operating system. VÖGELE ErgoPlus 3 offers clear and intuitive design for precise and flexible control. And there’s even an app to make learning the system a snap, available for free. See more, do more, and get more done with ErgoPlus 3 at voegele.info/webspecial/ergoplus
WIRTGEN AMERICA, INC. · 6030 Dana Way · Antioch, TN 37013 · Telephone: (615) 501-0600
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SPECIAL REPORT Topcon Thermal Mapping System for Asphalt Paving Topcon Positioning Systems
Thermal Mapping for Caterpillar Asphalt Pavers Caterpillar - Cat
Thermal Mapping monitors the surface temperatures of the asphalt utilizing an infra-red camera and a Global Navigation Satellite System (GNSS) enabled by RTK accuracy helping asphalt contractors achieve higher quality results and earn more incentive pay by exceeding quality targets. • Viewing real-time temperatures, contractors can identify variations and take action to manage the plant to paver delivery process and fine-tune paving practices for more uniform lay-down temperatures • Manage the plant to paver mix delivery process in order to minimize thermal variation for up to 15% better consistency • System consists of no moving parts as the thermal camera mounts on a fixed position mast ForConstructionPros. com/21121909
The Topcon Thermal Mapper for asphalt paving is designed to monitor temperature segregation to prevent future problems and measure performance, as well as easily provide accurate compliance reporting — all with real-time kinematic (RTK) positioning accuracy. • The mapper records temperature readings behind an asphalt paver as the paving is in progress and provides a visualization to operators in real time of whether the mix falls within a pre-defined temperature range, and if any segregation is limited within specifications • The mapper quickly tells operators if the mix is stable or if moderate or severe temperature variation is occurring. If the readings are unacceptable, operators can adjust for more efficient and accurate project outcomes • System creates data reporting files to download for applications such as DOT compliance through an interactive Pavelink module, the Topcon cloud-based logistics application for asphalt paving ForConstructionPros.com/21121074
Leica MC1 for Stringless Paving Leica Geosystems, Inc.
The MC1 asphalt paving solution enables operators to precisely place cement-treated base course or start asphalt paving directly without waiting for manual stakeouts. The operator can change the height offset directly on the run screen, and thanks to the automatic leapfrogging, paving surface quality is increased. The solution is fully compatible with Leica iCON site and Leica ConX for seamless data sharing, file transfer, as-built documentation, track, view and sync functions. • MC1 software has now been released for the entire iCON road segment, including soil compactors, concrete pavers, asphalt pavers and milling machines • Uncluttered and user-friendly interface with the latest updates included: • Support of the Leica MSS400 sensors • Terrain models for milling and asphalt pavers • Smartspare TPS, a new feature for the handling of spare TPS tracking and lock to target • Support of the iCR80S construction total station ForConstructionPros.com/21120984
Weiler P395 Commercial Asphalt Paver
Weiler
Engineered and built to exceed the demands of commercial paving, the Weiler P395 incorporates proven designs with new innovations to provide performance, reliability and outstanding mat quality in a wide range of applications. • 4,400-lb., 7-ft. 8-in. front mount screed is hydraulically extendable to 15-ft. 4-in. • 96-in. track length with 74-in. of ground contact and 140 mm track chain pitch provides smooth ride and excellent flotation • Automatic track tensioning ensures performance and maximizes component life • Swing out consoles provide optimal visibility while the adjustable, magnetic-resistance intelligent steering system allows for reliable control • Joystick allows for automatic functions • Highway class chains, conveyor and auger bearings provide long-term reliability • Remote grease lines, spray down system with 4-10-in. coiled hoses ForConstructionPros.com/21119006
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4/15/20 7:42 AM
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125HP HEAVY COMMERCIAL PAVER
TRUST LEEBOY. AS DEPENDABLE AS YOUR DAY IS LONG.
EASY ACCESS FOR ROUTINE MAINTENANCE
NEW LEGEND HD PRO SCREED
PIVOTING, MULTI-POSITION SEATS
www.LeeBoy.com
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4/15/20 7:42 AM
SPECIAL REPORT ADM EX120 Asphalt Plant
Asphalt Drum Mixers Inc. (ADM)
Asphalt Drum Mixers (ADM) redesigned the EX 120 asphalt plant for CONEXPO as a solution for producers who need a portable counterflow plant that can process high percentages of RAP. • Single-drum counterflow technology with separate drying and mixing zones • 120-tph unit meets all federal and state emission regulations • Can process as much as 50% RAP • Shorter length makes the plant even easier to transport, while taking up even less space on the job site, making it the ideal asphalt plant for remote and demanding locations worldwide • One-person operation • Customized components include cold feed bins, hot oil asphalt cement tanks (both horizontal and vertical), direct-fired horizontal cement tanks, portable and stationary baghouses, mineral filler systems, RAP systems, self-erect and stationary silos, weigh and drag conveyors, weigh batchers and fuel oil tanks ForConstructionPros.com/12315118
CMI Cedarapids Magnum 250 Counterflow Drum Mixer
CMI Roadbuilding Inc.
Cedarapids Magnum 250 Super-Portable counterflow drum-mix plant can produce up to 250 tph with 35% RAP capability. • Redesigned and upgraded series includes new high-efficiency drying and mixing zones, railroad bearing trunnion roller assemblies, direct drive gearmotors and drum insulation and cladding as standard • Large full-width chassis support pad assemblies to distribute the load evenly thus minimizing site foundations and craneage
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ALL THINGS CONSTRUCTION, ALL UNDER ONE ROOF. • Digital issues • Spec guides • Construction news • Industry directories • Video network • Featured articles • And more!
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4/15/20 7:43 AM
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All Aluminum Live Bottom Trailers and Truck Bodies ALL ALUMINUM LIVE BOTTOMS
– Lightest in the Industry, At Least 1 Ton Lighter than the Competition – Extra Payload = Extra $ THE SAFER WAY TO PAVE!
4003 Tiffin Ave., Sandusky, OH 44870 419-625-8953 • 888-608-1997 • www.pegasustrailers.com ACON0520_32-41_Top30_AH.indd 43
4/15/20 7:45 AM
JOBSITE INNOVATIONS |
BY JESSICA LOMBARDO, EDITOR
Recruiting the
GEN-Z WORKFORCE
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4/15/20 7:52 AM
Move over Millennials, Generation-Z workers are ready to take your jobs and here’s why they’ll succeed
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any construction business owners have a negative mind-set when it comes to the Millennial generation of workers. These workers are categorized as lazy, entitled, narcissistic and job jumpers, all characteristics not suited for careers in construction. Still, many companies are putting their efforts in to recruiting these workers in hope to help continue to close the labor shortage and skills gap the construction industry is facing. With most Millennials well in to their careers at ages between 24 and 38, the construction industry may have missed the boat on these workers. Good riddance you say? Perhaps. To better attract the next up-andcomers, a number of organizations are turning their focus to the next defined group of young people: Generation Z. Gen-Z workers were born between about 1995 and 2010 (ages 10 to 25). The leaders of this group are already graduating college and heading to work. They are 72.8 million strong and it looks like the financially prudent, entrepreneurial and hands-on aspects of the construction industry will appeal more to these individuals than their millennial predecessors. MILLENNIALS VS. GEN-Z WORKERS The frustrated recruiters in construction industry should be happy to learn that Gen Z is quite different from Millennials, and these differences should be noted in order to successfully attract and hire these workers. While Millennials were raised by Baby-Boomers who never wanted their children to suffer and to always know their worth, Gen-Z children were raised
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by parents in Generation X who came of age amid a series of crises: Watergate, the fall of the Berlin Wall, the Challenger explosion, etc. They also watched their parents stress over bills and make serious efforts to cut spending however possible after the economy took a turn in 2008. As a result, Gen-Z children tend to be far less entitled and at the end of the day feel lucky to have a job. This is good for the construction industry. “Millennials were all about finding meaning in their jobs and how best to make the world a better place,” David Stillman said to a crowd of asphalt contractors during the National Asphalt Pavement Association annual meeting. “With Gen Z coming of age during the recession, they are putting money and job security at the top of the list. Sure, they want to make a difference, but surviving and thriving are more important. The cultures that can foster that are the ones that will win the war for talent with Gen Z.”
“They want to make a difference, but surviving and thriving are more important.” David travels around the country with his son Jonah, a child of Generation-Z, speaking about the differences between these groups of workers and how businesses can take advantage of those differences when hiring. “At a young age, we were told by our Xer parents that there are winners and losers, and that more often than not, you
lose,” Jonah said. “For this reason, we are looking for stability and opportunities to advance in our careers and are willing to stick around if we can find it.” HOW TO RECRUIT GEN Z So how can construction companies attract this pool of workers to the industry? Start by discussing opportunity. Smart companies are figuring out what value propositions they need to put forth. For Millennials, it was all about how they could make a difference in the world, even more than a paycheck. For Gen Z, it will be about salary and benefits first and how they will be able
to advance. That's a huge shift. While Gen Z is very salary-focused, it’s not out of a sense of entitlement as some feared with Millennials. This generation didn’t grow up in the booming 90s and as a result they want financial security and traditional benefits such as health insurance. Though this may be a welcome change for older managers, it also means that companies will have to give Gen-Z workers stronger incentives to stay loyal and that means you may have to pay them more if you want them to stick around. Gen Z will also be motivated by a clear career path. Millennials paved the way for pushing career paths to advance at a much faster pace. Gen Z will continue to push for fast advancement; however, it will go way beyond just pace.
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JOBSITE INNOVATIONS
“We won't be motivated if opportunities to get ahead are based on how long you've been in a job, that will make no sense to Gen Z,” Jonah said. “In our eyes, it should strictly be based on performance, whether you've been there three weeks or three years.” One way to get around this is to over Gen-Z workers several different opportunities to learn at once. Research from the Stillman’s found that 75 percent of Gen Z would be interested in a situation where they could have multiple roles within one place of employment. “Our national studies show how Gen Z is looking for customization in their careers,” Davis said. “Fifty-six percent of Gen Z would rather write their own job description than be given a generic one and 62 percent of Gen Z would rather customize their own career plan than have the organization lay one out for them.” Ideally this means managers should figure out a way to offer multiple career paths for these workers, but if they can't, creating environments where Gen
Z can be exposed to as many roles as possible will be critical. Initiatives like rotation programs and cross training will hit a home run with Gen Z because they'll get to feel as though they are working in many areas and therefore not fear they are missing out on anything. And while being mentored may not have appealed to Millennials, the thought of learning from more experienced workers is expected by Gen Z. “Our Gen X parents drilled into us that our opinions aren't always the best and that we have a lot to learn from others. Because of this, we will be very open to being mentored,” Jonah said. “It's never easy to be the youngest or newest employee, but because we know we have to start at the bottom and are not delusional about what it will take, we're hopeful we can create the common ground we need to be accepted and get ahead. Where Millennials came across as feeling the job was lucky to have them, we feel we are lucky to have the job. Seventy-six percent of Gen
Z said we are willing to start at the bottom and work our way up. Paying dues is back on the radar!” EXPECT GEN Z TO DISRUPT - IN A GOOD WAY Since the construction industry never quite became a home for Millennials, they never really had a chance to leave their impact. Don’t expect that from Gen Z workers. First of all, Gen Z has already disrupted the education industry as 61 percent of Gen Zers feel you should only go to college if you already know what you want to be. This presents an opportunity for an industry like construction to get in on the ground floor and offer good careers and good salaries to these future workers early. “Companies on the leading edge are getting on our radar as early as possible,” Jonah said. “Because we are in survival mode, we are focused on creating security at a younger age. Fiftyfive percent of Gen Z feels pressure to gain professional experience in high school and traditional industries are
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4/15/20 7:58 AM
JOBSITE INNOVATIONS iStock
struggling with Gen Z because they are not on our radar. We are daydreaming out the window [about working] at companies like Netflix or Google. We aren't likely thinking about construction or manufacturing. Usually companies think about reaching out to college students or they offer internships, but innovative companies should be looking for ways to partner with high schools to get on the radar even sooner.” Outside of education, technology adoption and use in an industry that traditionally lags behind the rest of the world will become even more important. Members of Gen Z are the true "digital natives." As they’ve grown older, things like smartphones, tablets, social media and even virtual reality have been the norm. They’re comfortable with technology, and if they’ve learned anything from their resourceful Gen X parents, could come up with new ways
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to use tech to solve common problems faced by the industry. “Gen Zers are true digital natives and 91 percent of Gen Z said technological sophistication would impact their interest in working at a company,” David said. “As the workplace continues to figure out how best to incorporate technology, this generation will lead the way. This will not feel natural, as usually it is the older generations to lead the way. However, this is the first time we have the youngest generation as an authority figure on something really important.” Jonah agrees. “I believe my generation will bring an important entrepreneurial spirit to work,” he says. “We will constantly look for ways to streamline processes and procedures. One thing we hear from a lot of Gen Zers is that we think the other generations over-complicate
things. We have grown up in a time where often the middleman has been eliminated so we will look for ways to do things more efficiently when we show up at work. We truly are a DIY [do it yourself] generation and will bring this mentality with us to work.” There has never been a better time to recruit these realistic and exceptionally motivated young individuals to the construction industry. Generation-Z workers will be integral to helping the construction industry solve the growing labor shortage. Start recruiting early and keep the opportunities our thriving industry presents these workers in front of them often.
For more information on today’s workforce, visit ForConstructionPros. com/20994496.
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4/15/20 7:58 AM
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FROM THE PRODUCERS OF:
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4/15/20 7:59 AM
JOBSITE INNOVATIONS LeeBoy 4130 Road Widener
VT LeeBoy
The 22,670-lb. 4130 Road Widener has a 2.2-cu.-yd. hopper capacity and a width of spread up to 8 ft. Shiftable conveyor and foldable hopper wings allow precise placement of material to either side of the machine. • Contoured strike-off enables controlled spread of material width, depth and slope with minimum side draft and minimum segregation of materials • Tilting front hopper improves the trailer load angle to 14.5° • Operator console shifts from side-to-side, allowing a clear view into the front hopper and material flow to the strike-off • Extendable push rollers ensure a variety of trucks can be used to feed the hopper • 74-hp Cummins Tier 4 Final engine and front wheel drive axle and electric hydraulic-controlled two-speed traction drive motor
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ForConstructionPros.com/21039909
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BOMAG Cedarapids CR 1030 Asphalt Pavers BOMAG Americas Inc.
The 260-hp CR 1030 W wheeled paver has a 16.7-ton hopper capacity, or up to a 27-ton capacity with an insert. • The 225-hp CR 1030 T Series track model has a standard 14-ton hopper capacity or up to 22 tons with insert • Stretch 20 hydraulically extendible screed enables infinitely variable paving widths from 10 to 20 ft. and a maximum paving width of 30 ft. with extensions • Dual swing-out operator stations with Sideview enable the seat and console to swivel outward at four differing angles for unobstructed views to the paver sides and screed end gates • 7-in. multifunction color screen at each console displays critical operating functions, gauges and parameters ForConstructionPros.com/21076258
HAMM HP Series Pneumatic Rollers Wirtgen America
The HP 180 and HP 180i pneumatic tire rollers offer operating weights of 8 tons to a maximum of 18 tons and the HP 280 and HP 280i feature operating weights between 10 tons and a maximum of 28 tons. • Feature a modern, spacious operator's platform or panoramic cabin with maximum visibility • Operating weight quickly adjustable to suit the asphalt type, layer thickness and application with flexible ballasting • User guidance assisted by the unambiguous color-coded grouping • Drive control via a joystick ergonomically positioned on the armrest ForConstructionPros. com/21064550
The RP-250 heavy-duty 10-ft. paver has large tires and an adjustable frame that provide optimal weight distribution and tractive effort. • 52-cu.-ft. hopper with a 10-ft., 3-in. width and is capable of paving speeds up to 233 fpm and travel speeds up to 13 mph • 241-hp Cummins QSB 6.7 six-cylinder Tier 4 Final diesel engine and Sauer Danfoss Series 90 hydraulic pumps for propel and material feed • Antisegregation design of the feed tunnel, feed tunnel discharge and rear augers • Standard sonic feed sensors control each side of the feed system ForConstructionPros.com/21088120
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Roadtec Inc. - Astec Industries
ASPHALT CONTRACTOR MAY 2020
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Roadtec RP-250 10-ft. Asphalt Paver
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GSSI PaveScan 2.0 Asphalt Density Assessment Tool Geophysical Survey Systems Inc
PaveScan 2.0 incorporates a new sensor design built specifically for the extremes of the asphalt paving environment, foldable deployment arms with high-visibility for work site safety and has a warm-up time of under one minute when ambient temperature is over 70° F. • PaveScan RDM is ideal for uncovering problems that occur during the paving process, including poor uniformity and significant variations in density • By avoiding these problems, PaveScan RDM helps avoid such premature failures as road raveling, cracking, and deterioration along joints
Better Data. Increased Control. Higher Profits. Leading in automation control systems and production data management for the asphalt industry.
DrumTronic Asphalt Plant Automation & Controls
ForConstructionPros.com/21119999
CASE E Series Compact Vibratory Rollers Case Construction Equipment - CNH
The E Series line of compact vibratory rollers from CASE Construction Equipment combines a compact size, excellent maneuverability and visibility with many of the same features found in larger compaction machines. • Designed with a high curb clearance, no overhangs and narrow drum widths ranging from 39 to 54 in., depending on the model, the CASE E Series compact rollers are ideal for small- to mid-size compaction applications such as driveways, walking paths, commercial developments and around existing structures • Each machine delivers high centrifugal forces and frequencies at lower RPMs, making them more fuel efficient • Selectable dual vibration frequencies further improve productivity and allow operators to dial the machine in to meet the specific compaction needs of the job ForConstructionPros.com/21120047
Dynapac CO5200 VI Oscillation Roller
Dynapac North America LLC
The CO5200 Generation VI double-drum roller with oscillation allows the operator to select the system that is most suitable for the application. • 25,798 lbs. • Drum shell fabricated from Hardox 450 abrasion-resistant steel • Cummins QSF3.8 IV/T4f engine • Balanced operating mass for the front and rear modules helps reduce roller marks and deliver a consistently compacted surface with every pass • Can reach ground speeds of up to 7.5 mph ForConstructionPros. com/2112076
LoadOut Powerful truck loading solutions for all silos and scales layout complexity. For enhanced ticketing functionality and job management, use with Tessera Ticketing.
Tessera Ticketing Enhanced Job Ticketing & Management Software
e-Ticketing now available!
PlantManager Real-time production dashboard of multiple asphalt plants
MINDS offers a complete software and hardware toolset for managing and optimizing asphalt plant production. For additional data suite information, call 1-866-971-2980 or visit MINDSusa.com.
www.ForConstructionPros.com/Asphalt
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MAY 2020 ASPHALT CONTRACTOR
51 4/15/20 8:11 AM
PRESERVATION UPDATE |
BY ROGER SMITH
THINLAYS
Becoming a Preservation Option Asphalt lifts thinner than 1-1/2 in. becoming more common
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he placing of hot mix asphalt (HMA) overlays thinner than the usual 1.5-in. minimum often raises eyebrows. But it’s commonly being done nationwide, and many agencies are totally sold on the concept. “Thinlay” is the general term used for this strategy. It involves special small-aggregate HMA mix in thicknesses only 3/4 in. to 1 in. placed as surface treatment on structurally sound pavement. These mixes are produced in hot mix plants and placed with conventional pavers and rollers. In California, typically only opegraded friction courses (OGFC) and thin-bonded overlays are placed in thickness less than 1 in. But based on national experience, thinlays might be thought of as another tool in the bag of surface treatments, usually applied as preventive maintenance for pavements still in good condition. In a recent webinar sponsored by the Asphalt Pavement Alliance, a panel of road managers from across the nation, including officials New Jersey, Ohio,
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Wisconsin, Oregon and Mississippi discussed their experiences and bestpractice tips for thinlay technology. Based on their experience, thinlays have a lot of potential benefits and uses, including sealing, smoothing, improving skid resistance, noise reduction, x-slope restoration, minor rut leveling and raveling repair. Smaller thinlay projects are often done in-house with agency crews and equipment. As for the mix itself, thinlay HMA mixes generally use smaller topsize aggregate (3/8 in.) and a harder polymer-modified asphalt binder (e.g. PG 76-22). Specifications often require 100% crushed aggregate for maximum stability – especially in hotter climates. Because of the rapid cooling of thinlays, warm mix asphalt (WMA) technology can be used to aid in proper compaction. Thinlay best practices include: • Targeting pavements with PCI > 65 • Pre-repair of localized defects • Pre-milling of rougher pavement (e.g. distortions around intersections) • Placing an asphalt tack coat • Using riser rings on manholes and other ‘iron’ in the street. Thinlay HMA paving involves conventional paving equipment and is dust free with minimal traffic
interruption. Life expectancies are reported to be 10-plus years over old asphalt pavement and 6 to 10 years over concrete pavement. For more information go to: www.roadresource.org or http:// store.asphaltpavement.org/ Caltrans established the California Pavement Preservation (CP2 Center) at CSU, Chico in July 2006, and fully funded the Center in January 2007. Dr. DingXin Cheng is the current Director of the Center. Mr. Hector Romero is the current contract manager of Caltrans. The purpose of the Center is to provide pavement preservation support services to Caltrans and other public agencies, and to industry. Unique services include developing educational programs in pavement preservation, providing training and staff development opportunities, providing needed technical assistance to public agencies and industry, and managing/conducting research and outreach services, such as this newsletter. CP2 Center News is published quarterly by the CP2 Center, Langdon Hall Suite 203, California State University, Chico, Chico, CA 95929-0603, Subscriptions by e-mail: contact CP2C@ csuchico.edu to add your name to the distribution list.
For more information on thinlays, visit ForConstructionPros. com/12086406.
www.ForConstructionPros.com/Asphalt
4/15/20 8:22 AM
PRESERVATION UPDATE Caterpillar K System Milling Drum Caterpillar - Cat
After four years of research, Caterpillar Inc. has unveiled the K System standard milling drums with advanced features for surface removal or complete removal of road surfaces. • Dual retention system feature with taper and cylinderical lock. No need for torqueing bolts • System designed as left or right sided pieces to allow for optimized cutting effort and material flow delivering an excellent cutting pattern • Available in multiple space sizing with the same holder system ForConstructionPros. com/21047786
MicroTekk Microsurfacing Treatment
Road Science
A unique process and materials combine to increase a pavement’s durability and delay or mitigate cracking, while extending the life of the micro-surfacing layer. • Increased workability • Extended construction window • Less aggregate and water sensitivity ForConstructionPros.com/12130835
Libra’s New Integrated GPS/Asset Management Solution Sentinel is the construction industry’s premier, real-time fleet management,
M310E Truckmounted Slurry Seal and Micro Surfacing Paver Bergkamp Inc
Bergkamp's M310E Tier 4 truck-mounted slurry seal and micro surfacing paver with EMCAD (Electronic Mix Control And Diagnostic) is developed from the original M210 paver but features PTOdriven hydraulic pumps, eliminating the side engine. • Direct-drive hydraulics • EMCAD System manages power inputs and electronically controls material outputs ForConstructionPros. com/21106523
Rosco NV55 Self Propelled Broom VT LeeBoy
The multi-functional joystick control lever combined with fingertip controls provide precision movement during operation while the standard configuration features wraparound windows that give the operator remarkable visibility. • 6,900 lbs. weight without water • 7-ft. 6-in. diameter heavy-duty frame; quick change poly-tube brush
E-ticketing, and asset tracking solution.
Seamless Integration with Libra Solution Suite Eliminate the hassle of interfacing with 3rd parties. Have job data & E-tickets available at your fingertips. Mobile App or Vehicle Mounted Options Track assets using a physical GPS tracking device or use your own device with the Sentinel Mobile Application for Android and iOS. Unparalleled Accuracy Sentinel provides faster position updates than other solutions. The result is better visibility of the fleet, improved asset utilization, and greater profits.
www.librasystems.com ● 215.256.1700
ForConstructionPros. com/21120243
www.ForConstructionPros.com/Asphalt
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MAY 2020 ASPHALT CONTRACTOR
53 4/15/20 8:31 AM
CLASSIFIEDS
Contact Denise Singsime Print and Digital Advertising
920-542-1245
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570-779-1982 www.evansanddaniels.com 54
ASPHALT CONTRACTOR MAY 2020
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CLASSIFIEDS
ASPHALT PLANTS · Gencor 300 TPH counterflow drum mix plant · Astec 350 tph Relo Double Barrel plant w/4 silos · Barber Greene 350 tph portable drum mix plant · Boeing 200 stationary drum mix plant · Adm 100 tph stationary plant with silo & RAP · ADM 110 tph portable drum plant · Cedarapids 350 tph counterflow drum and baghouse · 150 TPH Stationary drum mix plant · Astec 6000# tower and elevator · Astec 36” x 105’ slat conveyor · Standard Havens 38,000 CFM baghouse · 80,000 CFM Stationary Baghouse · Astec 400 tph Double Barrel only
· ’16 40 ton self erecting surge bin · CMI 600 barrel portable selferecting dust silo & pugmill · 2016 ADM 75 ton self-erect silo & slat conveyor · Astec 75 ton self-erect silo · Bituma 100 ton silo & slat conveyor · ADM six bin cold feed system · Heatec hot oil heater · Coneco 10 yard portable concrete plant · 30,000 gallon portable coiled asphalt tank
Plant for sale? Call Clancy! Serving the Asphalt Industry for 50 years 219-879-8231 • 800-348-8553 Email: sales@etclancy.com • www.etclancy.com
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1-888-878-0898
sales@asphaltace.com
MAY 2020 ASPHALT CONTRACTOR
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4/15/20 8:36 AM
CLASSIFIEDS THE RELIABLE WORLD OF ASPHALT PLANT PRODUCTS
www.ReliableAsphalt.com
DID YOU KNOW?
Reliable Asphalt Products offers a full line of liquid AC storage systems, from 10,000 gallons on up. The tanks are available in portable, stationary, and skid mount arrangements with options for hot oil, electric and direct fired systems.
Quality Liquid AC Storage Systems
Great value with expert customer service!
New, Used and Refurbished Asphalt Plant Equipment 521 Old 7 Mile Pike • Shelbyville, KY 40065 • Office Toll Free (866) 647.1782 • Fax (502) 647-1786
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www.ForConstructionPros.com/Asphalt
4/15/20 8:37 AM
PROVEN FOR THETHE PROVENEXPERTISE EXPERTISE FOR ASPHALT RECYCLING INDUSTRY
ASPHALT RECYCLING INDUSTRY
The RC Series RAP Crusher, ruggedly The to RCoutperform Series RAP Crusher, built and outlast. ruggedly Schutte built to outperform and outlast. Schutte Hammermill’s heavy duty hammer Hammermill’s heavy duty hammer mills are designed specifically for the challenges of processing asphalt road mills are designed specifically for the millings; producing perfect particle size challenges of processing asphalt road in a single pass, millings; producing perfect particle size without the need in a single pass, for screening.
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THE LEADERS IN SIZE REDUCTION, SINCE 1928 www.hammermills.com | info@hammermills.com | 1-800-447-4634
Index Advertiser Index
PAGE
Advertiser Index
PAGE
Ace Group
55
Reliable Asphalt Products Inc.
56
Ahern Industries Incorporated
54
Roadtec an Astec Industries Company
60
Almix
9
Schutte Hammermill
57
Asphalt Drum Mixers
25
SealMaster
5
Astec
15, 19, 23, 27, 30 – 31
Systems Equipment Corporation
50
Tarmac International Inc.
28
Weiler
21
WEM Automation
13
Wirtgen America Inc.
33, 35, 37, 39
BITCO Insurance Companies
47
Blue Roads Solutions
11
Calculated Industries
57
Carlson an Astec Industries Company
59
Eager Beaver Trailers
7
E. T. Clancy Company
55
Evans & Daniels Inc.
54
Fast Measure by KTP Enterprises
55
Gencor Industries Inc.
3
Heatec an Astec Industries Company
20
Homestead Valve Division
26
Ingevity
2
LeeBoy
41
Libra Systems Corporation
53
Meeker
17
Minds
51
Pegasus
43
www.ForConstructionPros.com/Asphalt
ACON0520_57_Index.indd 57
Get fast, relevant product information in the Buyers Guide at
ForConstructionPros.com MAY 2020 ASPHALT CONTRACTOR
57 4/15/20 8:40 AM
THE LAST EXIT |
BY JESSICA LOMBARDO, EDITOR
Asphalt Goes Autonomous
Driverless equipment is being designed to help asphalt contractors deal with the growing skilled labor shortage while also keeping workers safe
Launched at bauma 2019, BOMAG introduced the ROBOMAG BW154, a fully autonomous tandem roller for asphalt compaction..
M
any asphalt contractors will be quick to tell you that they can't find the workers they need to fill the open jobs they have. It's funny then, that these same contractors are the ones who are strongly opposed to bringing autonomous equipment to their jobsite. Many construction workers don't realize that these "driverless" pieces of equipment will never be designed to take away jobs of construction workers, but are being deployed to help combat the skilled labor shortage and keep workers on the ground safe. While autonomous technology has existed for many years in mining operations, more and more interest has developed from both customers and manufacturers on autonomous machine concepts for the asphalt industry and equipment designers are started to respond.
SOIL COMPACTION FIRST Starting with soil compaction, manufacturers like Dynapac and Caterpillar, Inc. already have concept machines and software available to aid in this delicate activity. Basic soil compaction techniques leave equipment operators rolling blind as they make pass after pass, hoping that the desired density level is achieved throughout the area. Instead of relying on concrete data, operators use on their own intuition. Compaction technology can help and autonomous compaction technology takes it one step further.
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“Compactors are a good place to start because they utilize processes with a high level of repetition, which can lead to operators losing concentration and performing inconsistently,” Bryan Downing, global sales consultant for Caterpillar Paving Products, says. He adds that autonomous compaction can improve uniformity and consistency. “Poor layer durability often can be attributed to inconsistencies in processes, such as rolling pattern variations (poor pass coverage, improper vibratory system on/off variation or incorrect use of amplitude or frequency),” he says. “With the use of autonomous systems and semi-autonomous (operator assist) systems, the roller processes will be more consistent and precisely executed.” Command for Soil Compaction is Caterpillar's answer to autonomous soil rollers. The operator-assisted technology automates the soil compaction process and helps contractors achieve compaction quality. The technology assists in compaction quality by guiding the machine to maintain constant speeds, along with correct pass counts, with consistent and precise overlap. As a result, contractors are able to hit compaction targets more frequently. Dynapac has introduced a similar concept with their SEISMIC technology that monitors the soil properties and automatically adjusts the frequency of vibration for optimal compaction and energy efficiency. The Active Bouncing Control System automatically cuts off the vibration when the material reaches maximum compaction characteristics. The next step for Dynapac is automatic steering and speed functions on the roller. The operator/site manager can use the machine to map the boundaries of the area to be compacted. Once the machine is placed in “Autonomy” mode, the system will take over the controls for steering and speed.
ASPHALT COMPACTION After seeing success with soil compaction, next up will be adding autonomy to asphalt rollers. HAMM Compaction Equipment first announced they were working on a selfdriving compaction solution in 2017. “Rollers for asphalt and soil compaction will be among the first vehicles in which such systems will widely establish themselves,” Stefan Klumpp, chief technology officer at HAMM says. “This is because, in many respects, they are closer to cars than many other types of machine are. This is why we have been dealing with this subject for some time.” The first step, Klumpp said, is to ensure the machines’ sensors can appropriately measure stiffness to accurately decide frequency and amplitude. According to Klumpp, “the automation of the working process of the machine has to be optimized and further developed. As a result, the driver can concentrate on driving.” Launched at bauma 2019, BOMAG introduced the ROBOMAG BW154, a fully autonomous tandem roller for asphalt compaction. Based on geofencing and GPS data, it can compact a pre-planned area and contains sensors for obstacle detection to improve safety. Although manufactures continue to invest in the possibility of autonomous equipment on the paving train, many manufacturers say that commercially available self-driving equipment is still at least 10 years away and automating more delicate equipment like the paver is even further down the road.
For more video insights on autonomous equipment, visit ForConstructionPros. com/21121753 .
www.ForConstructionPros.com/Asphalt
4/15/20 8:47 AM
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A NEW KIND OF POWER TOOL
OUR MOST POWERFUL PAVER The RP-250’s large tires and frame-raise provide ideal weight distribution and tractive effort. Steering is assisted by the rear wheels so you have precise control, especially in turning. With 250 horsepower, this paver provides the power you need.
See the full range of products at roadtec.com
© 2020 ROADTEC. INC. ALL RIGHTS RESERVED
ACON0520_58-60_LastExit_AH.indd 60
1.800.272.7100
Dedicated to Your SuccessSM
1.423.265.0600
4/15/20 8:49 AM