Production, Paving
In Cold Weather Dust Stream Challenges Mean Bag Tech Changes Strategies for European Densities New Plant Employee for IT How Much RAP?
World of Asphalt
Show Me the Money! JANUARY 2010
8
January 2 0 1 0 Departments Letter From the Editor 5 Ch-ch-ch-ch-Changes in Funding
18 Left: NAPA Chairman Larry Lemon knows where to go to get the latest and greatest industry information. See related article on page 8. Photo courtesy of Larry Lemon. Above: Paving in less than ideal conditions doesn’t have to ruin your day. See related article on page 18. Photo courtesy of Colorado Asphalt Pavement Association, Denver.
Resource Directory 50
Articles
Around the Globe 6 Industry News and Happenings from Around the World
16 Pilot Program Offers Construction Opportunities
People You Should Know 8 Spotlight on: 2010 NAPA Chairman Larry Lemon
18 When You Have No Choice: Producing in Cold Weather
Safety Spotlight 10 OSHA Inspections Take on High Visibility
20 What’s the RAP? AsphaltPro dispels rumors of RAP shortages, discusses best practices for marketing and use
by AsphaltPro Staff
Equipment Maintenance 12 Tank Maintenance by Bill Garrett
Producer Profile 14 Flanigan Gets Information Technology Maryland producer/contractor streamlines bottom line with new kind of plant employee, data integration by AsphaltPro Staff
Here's How It Works 46 Krendl’s KP1000 Feeder Machine Last Cut 48 Watch for New Crude Pricing by AsphaltPro Staff
by AsphaltPro Staff
by Sandy Lender
26 European and American densities, the pros and cons for tamping technology. See related article on page 26. Photo courtesy of Topcon Positioning Systems, Livermore, Calif.
Stop by the AsphaltPro Booth at WOA AGG1 for your chance to win $1,000. See related article on page 34.
by Sandy Lender
26 Europe’s Compaction: Density at the Paver by AsphaltPro Staff
30 Changing Dust Streams Require Changing Bag Technology As material from quarries produces finer dust and reused oils get into the plant’s airstream, the baghouse works overtime by Cathy Maher
34 Win Big at WOA Exhibitors, presenters offer building blocks for contractors, producers, materials suppliers to grow in 2010
About the Cover
No one wants to tempt fate, but sometimes a producer has no choice but to make mix during less than ideal weather conditions. When cold-weather paving is in your project forecast, make the best of it with best paving and production practices. This month’s front cover photo features a Tarmac 300 TPH counterflow drum mix plant at Hot Mix Materials, Kansas City, Mo., ready to do business despite a December snowfall. Photo courtesy of Tarmac, Blue Springs, Mo. ASPHALT PRO 3
January 2010 • Vol. 3 No. 4
Ch-ch-ch-ch-Changes in Funding editor’s note Please allow me to plagiarize for just a moment from the fabulous David Bowie.
2001 Corporate Place Columbia, MO 65202 573-499-1830 • 573-499-1831 www.theasphaltpro.com
publisher Chris Harrison
associate publisher Sally Shoemaker editor Sandy Lender operations/circulation manager Cindy Sheridan business manager Renea Sapp graphic design Alisha Moreland Sarah Handelman creative services Betsy Bell AsphaltPro is published nine times per year: January, February, March, April/May, June/July, August/ September, October, November and December by The Business Times Company, 2001 Corporate Place, Columbia, MO 65202 Subscription Policy: Individual subscriptions are available without charge in the United Sates, Canada and Mexico to qualified individuals.
One year subscription to non-qualifying Individuals: United States $90, Canada and Mexico $125.00 and $175.00 all other countries (payable in U.S. funds, drawn on U.S. bank). Single copies available $17 each.
Ch-ch-ch-ch-Changes (Turn and face the strain) Ch-ch-Changes Oh, look out you rock 'n rollers Ch-ch-ch-ch-Changes My digression into 1970’s glam rock can be explained by the changes around us. Nearly everyone you talk to is making resolutions about turning over a new leaf. It’s an exciting time for renewal and new starts. The big change on everyone’s mind in our industry is the funding Congress will bless us with through a set of bills passed in mid-December. The first—House Joint Resolution 64, which extends Defense Department appropriations and surface transportation authorization for about a week to keep projects and the economy from grinding to a sudden and frightening halt—will be a faded memory by the time this issue mails. HR 3326 is up next. It’s a good stop-gap measure that keeps projects running and workers employed while Congress works toward something more permanent for jobs and the economy. This is the Defense appropriations bill and it extends the surface transportation authorization until Feb. 28. By that time, HR 2847 should have kicked in. That’s the jobs bill and it’s set until Sept. 30. I’m convinced industry will remain vigilant in lobbying Congress to put a more permanent, reliablyfunded transportation plan in place before the September deadline rolls around. The jobs bill—HR 2847—is the one to keep track of. AASHTO reports that the jobs bill will give industry $53.3 billion for use in fiscal year 2010 for SAFETEA-LU programs in the areas of highways ($41.546 billion), highway safety ($729 million), motor carrier safety ($550 million) and mass transit ($10.508 billion). It will also help out the Highway Trust Fund by 1) putting $19.5 billion into the fund ($14.7 for the highway account and $4.8 for the mass transit account) and 2) changing federal law to allow the fund to collect interest in the future. According to AASHTO, the Transportation & Infrastructure committee says that gain of interest could mean a gain of between $500 million and $1 billion per year. That seems like a pretty big gap in projections, but this is all conjecture right now based on fuel taxes. Remember that when fuel prices rise consumers curb their driving habits. And that takes me back to the idea of lobbying for a more permanent, reliably-funded transportation plan. There’s more money in HR 2847 earmarked for extra job creation. Also, an important note that AASHTO pointed out about this bill is a provision for states: the bill waives state matching requirements for federal surface transportation grants for the remainder of FY2010. That means states having a tough time making the budget have a bit of grace coming. Plenty of good changes keep us on our toes this winter season. It’s not just Congress that’s got our industry’s economic future in mind. Equipment manufacturers are pitching new technology at the upcoming World of Asphalt. This publication is making new strides with editorial content and a new Web site to bring not just equipment and technology changes to you, but also to bring new practices and safer work methods to you. Not all change is scary. We welcome you to write to us here at AsphaltPro and let us know what changes are taking place in your neck of the woods. Let us know how we can help you adapt to those changes. Contact the editor at sandy@theasphaltpro.com. Stay Safe,
Sandy Lender, Editor ASPHALT PRO 5
AROUND THE GLOBE Industry News and Happenings from Around the World Canada
The World Road Association (PIARC) hosts the 13th International Winter Road Congress Feb. 8 through 11 in snowy Quebec, Canada, at The Quebec City Convention Centre. Information on technical sessions, exhibits, registration, accommodations and more reside at http://www.aipcrquebec2010.org/content/ view/11/20/lang,english/.
Holland
Through GPS devices placed in Dutch vehicles, Holland’s government will track how many kilometers citizens drive each year and tax them accordingly in an effort to reduce congestion and pollution. This taxation is scheduled to take effect in 2012 and will be a higher tax than current taxes on vehicle purchases and registrations, which are set to be repealed. Source: AASHTO Journal
Japan
• Ritchie Bros. Auctioneers, Vancouver, Canada, opens its newest auction site in Narita, Japan, about 1 mile (1.5 km) or 10 minutes from the Narita airport. The auction taking place Jan. 27 will have free registration, no reserve prices or minimum bids, no bid-ins by owners, bidding in-person, by proxy or over the Internet, and will be conducted in English with auction staff on site speaking Japanese and English for buyers’ convenience. Visit www.rbauction.com for more information and to see early February auction dates. • Topcon, Livermore, Calif., announced it has received an order for 90 additional GPS receivers from the Geographical Survey Institute (GSI), an affiliate of the Ministry of Land, Infrastructure, Transport and Tourism in Japan. This brings the total of receivers Topcon will provide to 450, allowing the GPS Earth Observation Network System (GEONET) operated by GSI to give the public at large more precise positioning data.
United Kingdom
The 9th International Conference on Sustainable Construction Materials and Technology in Asphalt, Pavement Engineering and Highways Maintenance offers a heady program with exhibition Feb. 17 through 18 at the Liverpool John Moores University in Liverpool, U.K. Visit http://www.ljmu.ac.uk/BLT/100174.htm or contact Professor Hassan Al Nageim at h.k.alnageim@ljmu.ac.uk for registration information.
Alabama
Join the National Center for Asphalt Technology (NCAT) for its Asphalt Technology Course Jan. 25 through 29 or Feb. 22 through 26. The cost is $850 per person. The intensive one-week curriculum will cover asphalt binders, aggregate, hot mix asphalt, construction, and HMA design/rehabilitation. Visit http://eng. auburn.edu or contact kerrlin@auburn.edu. 6 JANUARY 2010
Colorado
• The Air Division Inspection/Enforcement Flowchart & Forum is planned for 10 a.m., Thursday, Jan. 28, with the Colorado Asphalt Pavement Association (CAPA) to discuss the Air Division Inspection and Enforcement process and requirements. The APCD will develop an enforcement document (flow chart) that will help explain the inspection/enforcement process and how it works. They will also explain any pending or completed rule changes that affect the asphalt industry. • Join CAPA for the 37th Annual Rocky Mountain Asphalt Conference & Equipment Show Feb. 24 through 26. Former Denver Broncos All Pro Defensive Star Karl Mecklenburg will be the keynote speaker. For more information and registration, visit www.rmaces.org.
Hawaii
The National Asphalt Pavement Association (NAPA) invites you to attend the 55th annual meeting in lovely Maui, Hawaii, Jan. 17 through 20 at the Grand Wailea Resort. Registration information is available at www.hotmix.org.
Idaho
Chris Marshall takes over as president and CEO of ECCO Group, Boise, this Jan. 1. He will move from Leeds, England, where he serves as the managing director of Vision Alert, the company’s European headquarters.
Indiana
The 2010 Indiana Construction Industry Conference “Building a Better Indiana” takes place Feb. 19 through 26 at the Naples Grande Beach Resort in sunny Naples, Fla. As part of the week, the Indiana Asphalt Pavement Association meeting will be held Feb. 23 with a speaker from Astec Industries and AsphaltPro Editor Sandy Lender. Get registration information with Cummings Meeting Consultants at (317) 635-4755 or visit www.icic2010.com.
Kentucky
Don’t forget that the Plantmix Asphalt Industry of Kentucky (PAIKY) Winter Training School will co-locate with the World of Asphalt and AGG1 this February. In addition to the school’s regular activities, registration will include admission to the WOA trade show. The meetings will take place at the Northern Kentucky Convention Center, Covington, Ky., Feb. 15 through 17. Contact Brian Wood at (800) 544-8522 or visit www.paiky.org for registration information.
Missouri
The Missouri Asphalt Pavement Association (MAPA) 20th annual conference and 12th equipment exhibit will be held Jan. 12 through 13 at the Holiday Inn Select Executive Center in
Columbia. Call (573) 635-6071 or visit www.moasphalt.org for registration information.
New Mexico
The training center for CEI Enterprises in Albuquerque, N.M., will be home to three sets of customer training seminars this Jan. 11 through 14, 18 through 21, and Feb. 1 through 4, offering handson training including troubleshooting and maintenance of hot oil heaters, fuel preheaters and more. Online registration is available at www.ceienterprises.com or call 800-545-4034.
Ohio
Cincinnati will be home to the World of Asphalt this February. The conference, Feb. 15 through 18, and trade show, Feb. 16 through 18, are co-located with AGG1 2010 Aggregates Forum & Expo, Traffic Management & Work Zone Safety Power Workshop, the Flexible Pavements of Ohio annual meeting, and the Plantmix Asphalt Industry of Kentucky Winter Training School. Visit www. worldofasphalt.com for registration and travel information.
Oklahoma
The Oklahoma Asphalt Pavement Association is taking reservations for its exhibit hall, which takes place Feb. 9 through 10 at the Clarion Meridian Convention Center, Oklahoma City. Call (405) 524-7675.
Pennsylvania
* HAZEMAG, Uniontown, Pa., proudly announces the completion of its $250,000 Phase II building expansion and modernization project. The improved facility will offer a focus on sales, engineering, spare parts, customer service and material testing. * Pennsylvania Department of Transportation (PennDOT) and Governor Ed Rendell announce the state will be able to let 31 more projects than originally planned with the American Reinvestment and Recovery Act of 2009 (ARRA) because low construction bids have come in on projects so far. The state receives more than $1 billion in economic stimulus funds to allocate for transportation projects and now anticipates letting 323.
South Carolina
A new company formed this autumn from the uniting of Goodman Conveyor Co. and Hewitt-Robins Conveyor Components. Now Goodman-Hewitt Conveyors & Components, Belton, S.C., boasts a customer service focus with their new slogan “What You Want, When You Want It,” and a more than 100-year history of experience.
If you know of something important happening in your state, contact our editor with the information at sandy@theasphaltpro.com.
people you should know Spotlight on: 2010 NAPA Chairman Larry Lemon Name: Larry H. Lemon Age: 65 Title and company/organization: Chairman, Haskell Lemon Construction Co., Oklahoma City Job description: Lemon is responsible to see that all jobs are built according to the plans and specifications, and the projects are completed on time, on budget and safely. He provides the resources needed for each project manager to build high production, high quality paving projects. He staffs the organization with experienced construction people and provides the owners an acceptable Return On Investment. Years in the asphalt industry: Lemon started his career as the scale boy at the asphalt plant, weighing trucks in the summer of 1960. This year will be his 51st year working in the asphalt industry. Education: Lemon attended the University of Oklahoma, Norman, Okla., where he earned a Bachelor of Science in Business Administration in 1966. He then earned a Masters of Business Administration at OU in 1967. Community involvement: Lemon attends the United Methodist Church of the Servant in Oklahoma City where he is active on several committees and missions. He is an active member of several Chamber of Commerce organizations in the Oklahoma City area, and several construction industry associations. He is the manager of the Lemon Family Foundation, which helps needy children throughout the community. Professional background: Lemon started working summers in the family paving business when he was in high school. He started as the scale boy at the asphalt plant in the summer of 1960, and then worked different construction field crews each summer to learn the business from the ground up. He graduated from the University of Oklahoma in 1966 and joined the company full time as junior estimator and outside salesman. In 1970 he became the Project Manager over the field construction crews, responsible to build specification grading, drainage and paving. In 1985, Lemon and his partner Pete Wert became the second generation owners of Haskell Lemon Construction Co. when Haskell and Irene Lemon retired from the business. Larry became the “inside owner,” overseeing all of the estimating and bidding, accounting, finances and taxes. Pete became the “outside owner,” responsible for timely construction of all of the paving contracts. It was up to Larry to get the work and 8 JANUARY 2010
administer it, and up to Pete to see that it was built correctly and on time. By the 1990s the business had grown and flourished, and the third generation family members had joined the company. Over the last 10 years, Lemon has become chairman of the company, and has also had responsibilities for hot mix asphalt material sales to outside customers. A businessperson I admire: “I have great admiration for my father, Haskell Lemon, who started our business from scratch, and established an industry leading paving company. He set the value system that our “Word is our Bond,” and we will construct projects that exceed our customers’ expectations. I also admire Lee Iacocca, who was able to manage a large business in difficult times, and rebuild it
into a high quality, profitable company. (Too bad it didn’t stay that way.)”
family in the manor to which they have become accustomed.”
If I weren’t doing this for a living, I would: “be a Navy Jet Fighter Pilot, who would fly F-18 fighters off of aircraft carriers. I love to fly, and would have liked to defend my family and country.”
My pets: “I have been a dog lover since I was 6 years old. When you have two older sisters, every boy needs a good dog to listen to him and be his best friend. My present dog is a Golden Retriever named Molly. She takes me for walks each evening, and is always glad to see me.”
Biggest career or personal obstacle I’ve overcome: “In December 1984, my partner and I bought out my parents to become the complete What I do for fun: “We have a lake house at Lake owners of Haskell Lemon Construction Co. Within Eufaula, which is about two hours from Oklasix months, Oklahoma went into a severe receshoma City. I enjoy playing on the beach with the sion, with the total grandkids, building collapse of the oil sand castles and “I take great pride in our threeand gas industry relaxing from the and the Oklahoma generation family business. Our business. Having a banking industry. to get away company is now 63 years old, and retreat Managing a small from the rat race family company is one of the leading paving com- for a day or two is through the next panies in the state of Oklahoma." good for the soul.” five years of tough economic times, Family: “I married paying off the my high school bank notes and maintaining a high quality paving sweetheart, Suzy, in 1965, and we will celebrate company was a sobering experience. Hard work, our 45th wedding anniversary this year. Our two good business practices, high moral integrity and sons, Bob and Jay, are both highly successful a little luck allowed Pete and I to live though the managers in Haskell Lemon Construction Co. We tough times, and begin to grow and flourish again have five grand children, who still enjoying playing as Oklahoma prospered in the 1990s.” on the beach with Grand Dad.” A favorite recent project: Our sand and gravel company recently needed to establish a new location and build a complete new plant. I was the lead person in helping locate and buy the new property, obtain the nine government agency permits required to open for business, and help buy and construct a new high production sand and gravel plant. It took five years, and $4 million to open up for business. With the new plant now in complete production, our whole team can be proud of a state-of-the-art facility that will serve our company and this community for many years.” What’s currently on my iPod: “What’s an iPod? I enjoy listening to Johnny Cash, Garth Brooks, Barbara Streisand and Whitney Houston. However I listen to them on CDs at home and in my car.” Favorite movie: “I enjoy action movies and mysteries. The Hunt for Red October is one of my favorites, and most of the Indiana Jones movies.” Most well-worn book in my library: “My check book. It takes a lot of resources to provide for my
Favorite place in my hometown: “The asphalt plant. It’s fun to pick up a sack lunch and go to the asphalt plant and watch the organization work. I get to visit with our employees, talk with the truck drivers and see some of our customers. Sometimes being a family business has its advantages.” Accomplishment I’m most proud of: “I take great pride in our three-generation family business. Our company is now 63 years old, and is one of the leading paving companies in the state of Oklahoma. I am proud that we can win both state and national awards for quality workmanship. We work hard to maintain a reputation that makes our customers feel good when we win the bid to do their work.” Most people don’t know that I: “am an avid model railroad builder, and am in the process of building a new railroad empire in the basement of my house. Ever since Santa Claus brought me a train set when I was 5 years old, I have enjoyed playing with my trains.”
SAFETY SPOTLIGHT OSHA Inspections Take on High Visibility by AsphaltPro Staff
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Those are a lot of regulations and standards to wade through all at once, but everything is available in the Federal Register for easy reference. Recently, those regulations have gotten a touch of adrenaline. The jolt started with OSHA’s interpretation of “use of high-visibility warning garments” back in 2004. According to the Department of Labor Web site, OSHA prepared a letter that stated, “It is well recognized in the construction industry that construction workers in highway/road construction work zones need to be protected from traffic. The MUTCD [Manual on Uniform Traffic Control Devices, issued by the Federal Highway Administration] reflects industry practice with respect to identifying the types of situations where these workers need high-visibility warning garments. In such cases section 5(a)(1) requires the use of such garments.” When the Occupational Safety and Health Review Commission (OSHRC) ruled in the November 2006 hearing of Secretary of Labor vs. Ruhlin Co. that the 2004 OSHA letter didn’t give construction employers “fair notice of a requirement for employees in highway construction work zones to wear high-visibility garments,” the Commission also decided that the letter was indicating that high-visibility clothing is only required in those instances identified by the MUTCD with mandatory language, according to the Department of Labor site. OSHA has now decided to revisit the issue and, Aug. 5, 2009, issued a new letter that clarifies its position on high visibility clothing importance. And there’s the jolt the construction industry can use. “I was a contractor for years and saw Section 634.3 of the Worker first-hand how dangerous it is in work Visibility Rule zones,” Graham said. “High-vis clothing and high-vis equipment in general is “All workers within the right-of-way of a Federal-aid incredibly important. There are just too highway who are exposed either to traffic (vehicles many deaths for a relatively simple, using the highway for purposes of travel) or to inexpensive fix.” construction equipment within the work area shall Lifelines Online reported in its wear high-visibility safety apparel.” December 2009 issue that, “The new interpretation adds teeth to the General hen the American Reinvestment and Recovery Act of 2009 (ARRA) took effect, $27.5 billion was allocated for highway funding. What many may not realize is legislation specified that about $27 million, according to the National Work Zone Safety Information Clearinghouse, went to the Occupational Safety and Health Association (OSHA) to look in on those stimulus projects. One of the areas OSHA inspectors watch is work zone workers’ use of high visibility clothing. Does it sound like a lot of resources thrown at one sector of OSHA’s General Duty clause? Maybe so, but OSHA inspectors aren’t “bad guys” for enforcing a rule originally written to keep workers safe. The inspectors are looking out for each worker’s welfare and trying to promote a culture of safety. Matt Graham, president and CEO of Safeco Industries, Inc., Chandler, Ariz., supports that culture. “Safety equipment is routinely inspected, but safety clothing isn’t,” Graham said. “We need to change that mentality.” In what could be viewed as a step toward change, the Federal Highway Administration (FHWA) Regulation 23 CFR 634 went into effect in November 2008. It basically requires workers in federal-aid traffic zones to wear Class II and III clothing that meets the ANSI/ ISEA 107-2004 standard for high visibility safety apparel and headware. It also requires workers to wear safety vests that meet the ANSI/ISEA 207-2006 standard.
10 JANUARY 2010
Duty Clause, section 5(a)(1) of the OSH Act, which requires employers to provide work environments ‘free from recognized hazards… likely to cause death or serious physical harm.’ The new interpretation effectively overturns the November 2006 decision of the Occupational Safety and Health Review Commission (OSHRC) in Secretary of Labor v. Ruhlin Co. Therein, the Commission ruled that, except for flaggers, OSHA could not cite employers for failure to provide reflective apparel and chastised the Secretary for its efforts to broadly apply the General Duty clause.” The new letter with its “additional teeth” states the following workers must wear high visibility clothing: • Highway/road construction work zone employees working as flaggers; • Highway/road construction work zone employees exposed to public vehicular traffic in the vicinity of excavations; • Construction workers in highway/road construction work zones exposed to the danger of being struck by the vehicles operating near them; and • All workers who are exposed to either public traffic or construction vehicles and equipment. Being safe goes beyond wearing high visibility clothing because you fear an impromptu OSHA inspection at your federal stimulus project. Employers must be sure workers’ safety apparel stays in top condition. As John Ball, proprietor of Top Quality Paving, Manchester, N.H., has pointed out in these pages before, regular washing of safety vests is a must in muddy, asphaltic conditions. Ball replaces his safety vest about once every six months. Even if that sounds expensive for a company providing high visibility clothing to a crew, the alternative is devastating. “If the reflective material gets torn, or asphalt or emulsion gets on it, you’re less visible,” Graham explained. “It’s the old adage— if you take care of it, it’ll take care of you.”
equipment maintenance
Tank Maintenance by Bill Garrett
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egular, routine plant maintenance takes attention to detail from point A to point Z. In this month’s equipment maintenance department, the focus is on the tank farm. As any wise hot mix asphalt (HMA) producer will affirm, insulating liquid asphalt cement (AC) and fuel oil tanks is a good best practice. Whether you use an Owens Corning Type 701M according to ASTM C 553 or a Fibrex mineral wool tank wrap according to ASTM C 1393 or what have you, keeping that insulation dry should be part of your regular tank maintenance routine. Wet, damaged insulation lets heat escape and cold air get in. That racks up heating costs. Check fuel tank surfaces for rust and weather wear. A fresh coat of paint every two or three years not only spruces up the plant for a neighbor-friendly, employeepride atmosphere, but guards against rust spots. Another way to protect insulation that might not seem apparent at first is to maintain the walkways, rails and ladders around the tank farm. Is there a wiggle in your walk? You want to keep everything tightened and secure so workers have sure footing. This keeps them from stepping on horizontal tank sides and vertical tank roofs. The weight of a worker can dent paneling and damage the insulation underneath. Secured walkways and ladders also make for a safer work environment, which is what everybody wants to see. Another way to make the tank farm safer is to regularly clean and inspect the sample valve and removable heat exchange systems. Keeping the heat exchange system in good repair is especially important when running crumb rubber and polymer-modified mixes. Taking temperatures up means increasing your potential for coking, so keep an eye out for material build-up. If you do get into trouble with stubborn build-up, there are several companies capable of removing it. Also keep an eye on the unloading aspect of the tank farm. You want personnel to keep the unloading pump plumbed so you can easily remove product from the tank and distribute it back to the truck without causing a pressure problem in the suction side strainer, which is not built to withstand pressure. If you keep the unloading fill pipe and system return pipe plumbed below liquid AC levels, you’ll have less oxidation of AC products. It’s another cost-saving item to keep an eye on during regular tank maintenance. About once a month, make sure a member of the ground crew walks the tank farm checking for containment wall integrity. Be sure there are no cracks or imperfections in this environmental line of defense. Also, verify tank level systems are functioning properly. While no one expects a spill, containment is the law, so keeping protective features up to par should be part of good maintenance and inspection practices. Bill Garrett is with Meeker Equipment Co., Inc., Belleville, Pa. Contact him at (717) 667-6000 or visit www.meekerequipment.com. 12 JANUARY 2010
Having clean, well-maintained asphalt tanks and heaters goes a long way toward best practices for proper liquid storage. It also gives employees a sense of pride and gives neighbors a sense of well-being. All are positive facets of the National Asphalt Pavement Association’s Diamond Achievement Commendation and Diamond Quality Commendation programs.
Make sure a member of plant personnel is responsible for regular, scheduled walk-arounds of the tank farm. Have this person verify not just the integrity of the tanks, heaters and other components of the farm, but also the integrity of berms and containment floor and walls as well.
producer profile
Flanigan Gets Information Technology
Maryland producer/ contractor streamlines bottom line with new kind of plant employee, data integration by AsphaltPro Staff
At the Westport location, team members go over controls of the Libra system. Photo courtesy of Kelly Heck, InfoPathways.
I
n the past, P. Flanigan and Sons (PFS), Baltimore, Md., operated two Standard Havens drum plants and a recycling/crushing facility by corralling paperwork at the end of each shift. Plant operators took on the responsibility for tracking customers and assigning mixes and tonnages to accounts for billing purposes. That’s quite a task for a company that sees volumes of 60,000 tons at their recycle facility and 650,000 tons between their two hot mix plants (stats as of Dec. 7, 2009). But many multi-plant companies function in such fashion. Luckily, PFS introduced an IT manager to the puzzle and the pieces came together with his implementation of software from Libra Systems, Inc., Harleysville, Pa.
Chaos
If an imaginary company, A-Plus Paving, Inc., sends trucks to Plant 1 on Monday, the operator at Plant 1 types in the company name a certain way and sends the information to the office Monday evening. When A-Plus
Paving’s truck pulls into Plant 2 on Tuesday or Wednesday, the next operator might spell “A+” differently before logging in the tonnage and mix purchased. He might even label the mix something other than what the operator at Plant 1 labels it. Someone at the office gets to sort that out for billing purposes, if the discrepancies are even noticed. Imagine the chaos. Let’s say A-Plus Paving regularly uses Plant 1, and suddenly stops making payments on invoices for a couple of months. The office puts a hold on the company’s account. Heaven help the company if A-Plus Paving just goes to get their loads from Plant 2. Who’s to know? “I can paint a really ugly picture,” Thomas Bethune said. Bethune worked as the chief technical officer (IT manager) after taking on the task of centralizing information for PFS a few years ago. In the chaotic picture Bethune described, each plant a company owns is independently operated. “The plant operator has to ask ‘Did we really sell this mix to this customer?’ Someone at the office has to go through and
sort out all the paperwork coming in from each plant each shift.” Ken Cardy, the president of Libra Systems, agreed that handing so much paperwork and bean-counting to the plant operator is a mis-use of the employee’s skills. “The industry has been consolidating over the past 10 years with multi-facility companies,” he said. “Different plant operators were inputting more and more of the data when what they really needed to be worried about was making good asphalt.”
Getting Efficient
To rectify the situation at PFS, Bethune said management tasked him with solving the problem. He started out in engineering and estimating with the company as a third-generation asphalt professional, but his expertise in information technology gave him the edge he needed to help bring PFS into the information age as their chief technical officer. Bethune replaced PFS’s existing loadout system in
each plant with a fully integrated Generation3 (Gen3). The Gen3 systems are connected to a central Enterprise Information Server (EIS) located at the main office. The Gen3s and EIS were provided by Libra Systems. “The combination of Generation3s and the EIS allows PFS personnel to completely control ticket data and gives management real-time visibility of plant operations,” Cardy said. In a paper titled “A Case for Integration,” Bethune stated, “Prior to the upgrade, PFS used a combination of independently operating load-out systems and a custom generated end of shift production data collection system that was limited to end of shift data collection. The quality and consistency of this data was controlled by each plant—the plants were in charge of entering and maintaining job, customer, truck and mix information at each plant independently. The result was that the data was inconsistent between plants, a disaster for further use of this data. “At the end of each shift, this data was collected and exported to the main office, where tickets would be compared with the exported data and corrections made. After corrections were made, the data was matched with the main office list of projects, customers and mixes and further corrections were made. They stored this data in what was called the ‘permanent ticket record.’ This record was then used for billing and inventory reconciliation. Although PFS could report production for a shift after the initial data collection, billing and inventory control were always days behind. “The multiple steps necessary to produce billing and inventory data, combined with the time lag from production to data analysis and customer invoicing, created costs that kept PFS from operating as a best in class asphalt producer and general contractor. Time is money, and PFS knew they could be more profitable by reducing the time it took from asphalt production to customer invoicing and inventory management. “The Libra EIS system streamlined the scenario by allowing PFS to completely control the ticket information at the plants from a central location. This control not only standardizes key information such as job, mix and customer numbers, but trucking and customer naming conventions as well. “In addition to keeping the plants in sync with the office, the EIS allows PFS management
to analyze the operation of their company in real time. This improved level of information control now allows for detailed enterprise level reporting. In the past, the end of shift data collection could generate a history report of daily production, but it never provided real-time production information, requiring much of the intra-shift information to be relayed by phone, adding more work for the plant operator. EIS allows PFS to see real-time production (load by load) and provides the ability to reroute customers and deliveries to other facilities if needed. The communication between EIS and the Gen3 load-out can be set to any interval.”
IT Manager
load there. Conversely, he or she can redirect truck traffic to a plant that’s not being slammed. “You start working as a cohesive team when data is available in real time,” Bethune said. “Information becomes hard-coded, consistent, real-time and up-to-date. It remains consistent because you have the same person in that position who has named things consistently and keeps up with everything.” The family at PFS has had their IT management company and Libra automation system in place long enough to know how its efficiencies streamline the operations. While not every producer owner is in hiring mode right now, the team at PFS has shown the way to put an IT manager/asphalt wrangler on the team to maximize the use of data communicated within an automated server system.
Bethune has since branched off to develop a company called InfoPathways, Inc., Westminster, Md., that services PFS in addition to other companies. So PFS doesn’t have just a IT manager; it has an IT company. “InfoPathways is a consulting operation,” Bethune explained. With a few strokes on the keyboard, he can access PFS information and manage outside sales customers, quotes, invoices and accounting. “The plant operators don’t have to do that anymore,” Bethune said. While it might seem that setting up an automation system, assigning naming conventions, etc., might be a shortterm job for a consultant, Bethune explained that it’s actually a full-time position that an IT manager—or asphalt wrangler—will need to stay on top of long-term. Early morning start-up for P. Flanigan and Sons is an organized affair with all facilities on the same cyber page. Photo courtesy “Asphalt companies have a person who of Kelly Heck, InfoPathways. handles the field; a person who handles the equipment,” he said. “They need a person who handles the asphalt plants.” He went on to explain that the asphalt wrangler or IT manager does much more than set up the automation system and naming conventions. He or she remains “in control” of information, directing data. As an example, this person can see when one plant is overloaded with At the Winchester recycling location, Phil Peters and Kyle Goodwin give new meaning to mix and direct customer the morning tailgate talk as they look over the Libra system data. Photo courtesy of Kelly or company truck traffic to Heck, InfoPathways.
Pilot Program Offers Construction Opportunities by Asphalt Pro Staff
S
in DOT’s ARRA [American Reinvestment and elect students from the Spelman Recovery Act] projects.” College, Atlanta, and U.S. Department Officials at Spelman College set the curricof Transportation’s (DOT) Pilot ulum for the program. Entrepreneurial Training and Technical “The curriculum…will detail a specific Assistance Women and Girls Program will course of study according to the needs of have an opportunity to apply their classroom the program and its small business partners,” training to the real world. Patricia Martin, the Martin explained. “The interns are placed with program analyst for the U.S. DOT, said the same some of the following agencies as grantees/ interns—plus additional ones—that were recipients of DOT funds. (1) Regional Office enrolled in the initial semester of the program of the Federal Aviation Administration; (2) that began Sept. 18, 2009, will continue in the Georgia Department of Transportation; (3) spring 2010 semester. Citizen’s Trust Bank, Atlanta; (4) Greater Atlanta “Students can receive academic credit Economic Alliance; (5) from their participaLogisticare; (6) Metropolitan tion and/or receive a "The internships will Atlanta Regional Transit stipend under DOT’s be invaluable." Authority; (7) Atlanta cooperative agreement with Spelman College,” Helen King Hirschfield-Jackson International Airport.” Martin explained. Helen King of GHK Inc., The Woodlands, “The College has recruited interns that are Texas, lauded the program’s spirit. students in specific areas, such as economics, “In my opinion, the biggest obstacle to accounting, finance, marketing and management. Interns will have an opportunity to work women in the industry at this point is that girls don’t know about the opportunities,” she said. with small business companies as part of their “Forty years ago, when I was in college, most training and will be assigned to work at the women thought the only fields open to them transportation related firms that are involved
were nursing or teaching. It was true there was a lot of discrimination in traditionally male fields—both with getting a job and then with earning raises and promotions. The world has changed immeasurably since then. In the past six or seven years, I’ve seen many young female engineers and chemists successfully enter and prosper in the field.” King’s education includes a bachelor of science degree in chemistry from Heidelberg College in 1971 with graduate work in chemistry at the University of the Pacific and in engineering at the Universite de Pierre et Marie Curie, Paris. She shared how important internships offered at Spelman will be to the young women. “The internships will be invaluable. Having the experience will not only make the candidates more attractive to potential employers, but will also give the student an idea if she is a good fit.” Young women interested in applying for the pilot program at Spelman College should contact Bernice J. DeGannes Scott, Ph.D., at bscott@spelman.eduor (404) 270-6057.
by Sandy Lender
It’s not a scene from a winter wonderland. Paving crews had their work cut out for them as they worked between winter storms Nov. 14 and 15 to get the LRT project complete ahead of schedule.
N
o one relishes the idea of shoveling snow off the roller, and then heating the drums for attempting compaction in a work zone. Chances are the plant operator is cursing up a storm and the loader operator is staring at a pile of snow-covered aggregate. Temperatures are rising in more than the plant equipment in this scenario. When temperatures rise at the plant, so do fuel and production costs. It’s not a pretty picture. “Paving in cold weather is a challenge for our industry so it can be a point of consternation,” Tom Peterson said. He should know. He’s the executive director of the Colorado Asphalt Pavement Association (CAPA), which hosts seminars on best practices for cold weather paving and has a technical bulletin 18 JANUARY 2010
available to help producers and contractors get through the feat. “The reality is sometimes we’re forced to pave in the cold, and it has to be done,” he continued. “If a situation forces a contractor to pave in less than ideal conditions, there are ways to increase their chances for success.” With the influx of warm-mix asphalt (WMA) products in contractors’ arsenals, paving seasons can be extended, but no one wants to push their luck. For Premier Paving, Inc., Denver, one cold November weekend, luck, teamwork and best cold-weather practices were on the producer and paver’s side when the weather wasn’t. Josh Pategas of the Denver Transit Construction Group (DTCG) wrote in an e-mail of the teamwork aspect, recognizing
and thanking all 12 parties involved in the Nov. 14 and 15 weekend work. Crews had to pave the westbound I-70 light rail tunnel (LRT) west corridor and had to do it around two snow storms. “The second half of the West Corridor I-70 LRT was constructed under severe weather conditions and we are proud to report the work was accomplished 17 hours ahead of schedule!” Pategas boasted. “For those who were not out there, the group…battled through two separate snow storms that accumulated a foot snow. All parties maintained their focus and delivered a quality product without incident or injury. “It’s wonderful to see what can be accomplished when everyone is working as a unit, with one common goal.”
One of the reasons the Premier crew paved so quickly was their commitment to achieving density under weather strain. “Obviously we didn’t have optimum paving conditions,” Russ Otterstein of Premier Paving said. “One thing we did was keep the rollers real tight behind the paver. We put a third roller on in the breakdown position as well and concentrated on trying to keep the rollers close to the screed.” Something in the crew’s favor was paving depth. Otterstein pointed out that the crew placed 12 inches of asphalt on a gradeready lane. “We were able to retain residual heat in the mat,” he explained. Back at the plant, the operators did their part to give the paving crew a fighting chance at optimum quality. First, Otterstein said, new material was brought in just prior to the weekend’s project so it didn’t have a chance to sit around gathering moisture. Next, the loader operator selected material as carefully as he could. “We had to dig through stockpiles to get dry material,” Otterstein explained. The drier the material being fed to the plant, the easier it was to dry and keep the higher temperatures heating instead of fighting moisture. “We were running pretty hot,” he said. The plant produced mix at temperatures around 310 to 320 for loadout. Tarped trucks brought it to the site for quick delivery to the paving train. While paving under extreme weather conditions isn’t recommended, using best practices can help ease the strain and possibly result in a mat that doesn’t have to be “re-evaluated” come summertime. What cold-weather paving tips have you implemented on those “can’t-wait” projects? Write to the editor at sandy@theasphaltpro.com to share ideas and tips with fellow asphalt industry members.
It’s not every paving shift that starts with brushing snow off the rollers. Sunday morning of the WB I-70 LRT project meant extra warm-up time for compaction equipment.
Webinar
Preparing the roadway for paving took extra care after each winter storm passed through.
Feb. 9, 2010 CAPA presents “Best Practices for Cold Weather Paving” All CAPA webinars are scheduled for approximately 1.5 hours and are interactive, allowing participants the ability to ask questions. Register online at www.co-asphalt.com/ education/webinar-home.htm. PDFs of the presentations will be available for download prior to the start of the presentation. Each of the webinars will be recorded. If you miss a webinar you want to see, contact the RMAEC to get a link to the recorded version.
Mat thickness affects temperature allowance Course thickness
Minimum surface temp
3 in (75 mm) and up
36˚ F (2˚ C)
1.5 to 2.9 in (38 to 74 mm)
40˚ F (5˚ C)
1.0 to 1.4 in (25 to 37 mm)
50˚ F (10˚ C)
Less than 1 in (25 mm)
60˚ F (16˚ C)
Variable intermediate
40˚ F (5˚ C) 40˚ F (5˚ C)
0 to 3 in (0 to 75 mm)
Source: Ohio Hot-Mix Asphalt Vol. 11 No. 4 You can’t always avoid paving in cold weather, but there are best practices to maximize your success.
ASPHALT PRO 19
Thirty-four percent of the responding state DOTs said they worry about RAP stockpile management, thus producers should work to assure owner agencies that they have clean, well-managed RAP stockpiles. You can be ahead of the curve if you’re already fractionating RAP for quality control, gradation control and testing parameters.
What’s the
RAP?
AsphaltPro dispels rumors of RAP shortages, discusses best practices for marketing and use by Sandy Lender
W
hile researching information for the December feature article on the state of the industry, AsphaltPro staff was confronted with more than one source bemoaning what could be considered an impending shortage of recycled (or reclaimed) asphalt pavement (RAP) supplies. Such a sweeping generalization about a product that motorists drive on all across the United States, Europe, Asia and any other part of the globe where you find quality pavements warranted investigation. The good news is RAP supplies abound—you just need to know where to look for them and how to market them to the industry’s best advantage. Timothy Murphy, proprietor of Murphy Pavement Technology, Chicago, stated succinctly, “Every HMA roadway is a potential source for recycling. There’s not a shortage of product; however, there most likely is a shortage of acreage for storing the product. Several of my clients have opened recycling centers that take in and process not only asphalt, but concrete as well.” 20 JANUARY 2010
One area sources found potentially spotty for RAP supply was urban settings where producers just don’t have the space to store extra product. Even there, the product is available—just not immediately so. “I do hear contractors say they can’t get enough RAP,” Malcolm Swanson, vice president of engineering at Astec, Chattanooga, stated. “It’s often an urban versus rural thing. In large municipal areas, some contractors have too much RAP.” Jay Giltz of Eagle Crusher, Galion, Ohio, gave another insight behind this urban versus rural scenario. “My experience is that there is more recycled asphalt available away from major cities because asphalt contractors typically have larger jobs with more RAP on interstates than in urban areas. That is not to say that there are not exceptions. Due to the current economic conditions, most asphalt plants that recycle have large reserve stockpiles of both virgin material and recycled asphalt.” Swanson has also seen situations where contractors aren’t asked to take up the product
from the existing roadway. “I think there just isn’t a lot of milling being done in the area they’re serving,” he said of contractors experiencing shortages. “Obviously the RAP is there; it’s just not coming off the road. They’re asked to do overlays instead of mill and fills.” One source warned that some counties and even DOTs are wasting RAP on lower priority projects when they should be specifying this high-quality product for HMA and WMA base, intermediate and surface courses. “In some areas, you can mill a project and they’ve specified the product to go back to shoulders and aggregate bases—so there’s not enough recycle for the high-quality applications, the high-end use. We need to get those engineers to re-deploy the RAP.” Eagle’s Giltz took a very positive look at the use of RAP in any application. “I don’t see any ‘waste’ of any materials—recycled or not,” he said. “At least someone had a job to put down material on shoulders or whatever with the exception of a long haul to the facility. My opinion is that the only waste I see is material
It is in the producer’s best interest to show state specifiers that his or her stockpiles are placed on paved, sloped surfaces and/or housed beneath a covered shelter. Photo courtesy of Murphy Pavement Technology, Inc., Chicago.
Table 1. Allowed RAP Percentages in Asphalt Courses state In this closed system, RAP is crushed and screened continuously. Photo courtesy of Murphy Pavement Technology, Inc., Chicago.
sitting in the yard and not being used on a job. That’s waste. “With the amount of effort, work and cost of materials today there is no waste as I see it. RAP is very valuable to an asphalt contractor and is a big tool to be used to keep him more competitive and give him an edge over a competitor who does not recycle. Every ton of RAP saves big money for the asphalt contractor. It’s not called ‘Black Gold’ for nothing.” At the Warm-Mix Asphalt & Recycling Symposium held in Sacramento June 2009, Cecil L. Jones, PE, state materials engineer of North Carolina DOT, presented survey results regarding states’ use of RAP percentages in base, intermediate and surface courses (See Table 1). He showed attendees the mental and physical barriers that asphalt industry members must overcome to convince owner agencies that RAP is a viable product for use in reasonably high quantities in asphalt mixes so we all avoid the waste Giltz hates to see. According to Jones’ survey presentation, 34 percent of the responding states worry about RAP stockpile management, thus producers need to assure DOTs and owner agencies that they have clean, well-managed RAP stockpiles. It is in the producer’s best interest to show state specifiers that his or her stockpiles are placed on paved, sloped surfaces and/or housed beneath a covered shelter. Show your system for screening out debris or oversize material. Be ahead of the curve by frac-
tionating RAP for quality control, gradation control and testing parameters. There’s an incredible amount of information about FRAP available for free at www.beFRAPready.com. The respondents to the survey also said they were interested in proving the quality of the original stone in RAP piles. Jones pointed out that 13 percent of respondents were concerned with binder issues, contemplating properties of the final blend and compaction issues. Does your RAP use require an additional tank at the plant? Does it bump the binder grade; and how does that affect cost? Another 11 percent of respondents were concerned with the availability of RAP, which includes the items already discussed in this article. But consider also how you can assure owner agencies that your available material is not contaminated and not full of moisture. They want to hear that it will meet gradation requirements and not be something to toss into a shoulder or unbound maintenance application instead. Twenty-four percent of respondents cited “other” issues such as a contractor’s inexperience or unwillingness, or a resistance to change existing specs as troublesome. But 18 percent of respondents were concerned with long-term performance of RAP. With small-sample tests such as those conducted by research students at the National Center for Asphalt Technology (NCAT), it doesn’t seem the industry is ready to make wide generalizations about longterm performance just yet. Researchers with
Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming
% allowed in 2007 base 20 20 0 ≥30 ≥30 n/a 10 20 ≥30 25 ≥30 15 15 25 ≥30 25 20 ≥30 15 25 ≥30 ≥30 ≥30 ≥30 20 ≥30 ≥30 0 20 25 ≥30 ≥30 20 20 ≥30 25 ≥30 15 ≥30 15 ≥30 ≥30 ≥30 20 15 25 20 15 ≥30 ≥30
inter. 20 20 0 ≥30 15 25 10 20 ≥30 25 n/a 15 15 25 ≥30 25 20 20 15 n/a 20 ≥30 ≥30 ≥30 20 ≥30 n/a 0 20 25 ≥30 20 20 20 ≥30 25 ≥30 15 ≥30 15 ≥30 ≥30 20 20 15 20 20 15 ≥30 ≥30
surface 20 0 0 ≥30 15 15 10 10 0 25 15 15 15 25 ≥30 25 20 15 15 15 10 15 ≥30 15 10 10 25 0 15 15 0 20 20 20 10 0 20 15 0 15 ≥30 10 20 20 15 20 20 15 20 ≥30
% allowed in 2009 base 25 n/a* 25 ≥30 <100 25 n/r** 20 ≥30 ≥30 ≥30 n/r 25 n/r 15 25 <100 ≥30 25 <100 n/r 25 ≥30 ≥30 <100 <100 n/r ≥30 ≥30 25 n/r ≥30 ≥30 20 ≥30 n/r n/r <100 ≥30 ≥30 n/r n/r ≥30 ≥30 n/r ≥30 20 <100 ≥30 <100
inter. 25 n/a 25 ≥30 15 25 n/r 20 ≥30 ≥30 n/a n/r 25 n/r 15 25 <100 20 25 <100 n/r 20 ≥30 ≥30 <100 <100 n/r 0 ≥30 25 n/r 20 ≥30 20 ≥30 n/r n/r <100 ≥30 25 n/r n/r ≥30 ≥30 n/r ≥30 20 <100 ≥30 <100
surface 25 0 20 ≥30 15 20 n/r 10 15 ≥30 20 n/r 20 n/r 15 25 <100 15 15 <100 n/r 15 ≥30 15 <100 <100 n/r 0 25 15 n/r 20 ≥30 20 15 n/r n/r <100 0 20 n/r n/r 20 ≥30 n/r ≥30 20 <100 20 <100
* n/a = not available when the survey was conducted ** n/r = not reported when survey results were tabulated Data compiled from the “Survey of State RAP Use” presented by Cecil L. Jones, PE, State Materials Engineer for NCDOT at the 2009 Warm-Mix Asphalt & Recycling Symposium. ASPHALT PRO 21
Table 2.
Table 3.
RAP Average Use Percentages for 2009 State
Base
Inter.
Surface
Washington
10-20
10-20
10-20
California
≥30
1-10
1-10
Nevada
≥30
0
0
Montana
≥30
≥30
0
Wyoming
10-20
10-20
10-20
Utah
10-20
10-20
10-20
Colorado
10-20
10-20
10-20
North Dakota
10-20
10-20
10-20
Kansas
20-30
20-30
20-30 20-30
Texas
20-30
20-30
Minnesota
≥30
20-30
20-30
Iowa
10-20
10-20
10-20 10-20
Missouri
10-20
10-20
Arkansas
1-10
1-10
1-10
Wisconsin
10-20
10-20
10-20
Illinois
1-10
1-10
1-10
Kentucky
10-20
10-20
10-20
Mississippi
≥30
20-30
10-20
Alabama
20-30
20-30
20-30
Michigan
20-30
20-30
10-20
Ohio
≥30
≥30
10-20
New York
10-20
10-20
10-20
Pennsylvania
10-20
10-20
10-20
New Jersey
10-20
10-20
10-20
Maryland
20-30
20-30
10-20
Delaware
10-20
10-20
10-20
West Virginia
10-20
10-20
10-20 10-20
Virginia
20-30
10-20
North Carolina
10-20
10-20
10-20
South Carolina
20-30
20-30
10-20
Georgia
20-30
20-30
20-30
Florida
20-30
20-30
10-20
Hawaii
20-30
n/a
20-30
Data compiled from the “Survey of State RAP Use” presented by Cecil L. Jones, PE, State Materials Engineer for NCDOT at the 2009 Warm-Mix Asphalt & Recycling Symposium.
long-term performance test results are invited to contact the editor to share their good news in this forum. What industry can easily show right now is a trend toward good news. Andrea Kvasnak presented information gathered by Auburn University graduate student Jenna Michaels on the Long Term Pavement Performance (LTPP) of RAP versus Virgin Pavements at the Paving Smarter With Asphalt (PSWA) conference in Georgia this past October. During the presentation, Kvasnak stated that the greatest concern agencies have with RAP pavements is early failure or cracking. What a 17-year controlled collection of data for several pavement sections ultimately showed is, in most cases, pavements using mixes with greater than or equal to 30 percent RAP can perform equally to pavements using all virgin mixes. See Table 3 for a breakdown of actual data from Kvasnak’s presentation. 22 JANUARY 2010
Long Term Pavement Performance (LTPP) of RAP and Virgin Asphalt Sections Testing International Roughness Index (IRI) Performance Virgin performed significantly better than RAP 42% of the time. RAP performed significantly better than Virgin 39% of the time. There was no significant difference 19% of the time. Testing for Rutting Performance Virgin performed significantly better than RAP 33% of the time. RAP performed significantly better than Virgin 29% of the time. There was no significant difference 38% of the time. Testing for Fatigue Cracking Performance Virgin performed significantly better than RAP 29% of the time. RAP performed significantly better than Virgin 10% of the time. There was no significant difference 61% of the time. Testing for Longitudinal Cracking Performance Virgin performed significantly better than RAP 15% of the time. RAP performed significantly better than Virgin 10% of the time. There was no significant difference 75% of the time. Testing for Transverse Cracking Performance Virgin performed significantly better than RAP 32% of the time. RAP performed significantly better than Virgin 15% of the time. There was no significant difference 53% of the time. Testing for Block Cracking Performance Virgin performed significantly better than RAP 3% of the time. RAP performed significantly better than Virgin 1% of the time. There was no significant difference 96% of the time. Testing for Raveling Performance Virgin performed significantly better than RAP 7% of the time. RAP performed significantly better than Virgin 15% of the time. There was no significant difference 78% of the time.
Another statement presenters have made concerns producers and contractors’ current use of RAP. State DOT engineers and specifiers see little need to increase RAP percent limits if asphalt contractors aren’t using the black gold already allowed. In Jones’ survey results presentation, he showed what percentages are actually used. Compare the average percentages used in 2009 (in Table 2) to the numbers allowed in Table 1. Why the trepidation on the part of contractors? As Astec’s Swanson told me, “You can raise the allowable limits in any mix you want, but if you’re not using those mixes, it doesn’t make much difference.” He said it’s important for contractors and producers to use what they’re allowed to use and lobby for increasing percentages. And surface mixes are the course to concentrate on. “Most of the mix being laid in the country right now is surface mix,” he confirmed. “Typically we don’t see a lot of RAP in surface courses.” It’s time to work toward a change in that view and contractors can effect the change in state specs. “RAP is an excellent resource that must be properly managed,” Murphy said. “Percentages will continue to increase through contractor
ingenuity, equipment manufacturers’ ability and agency flexibility. In Illinois, IAPA contractors increased percentages in concert with IDOT. It can be the same in any state. Idaho introduced an unlimited spec in 2009. As long as the contractor can meet VMA and smoothness, he can put in up to 100 percent RAP. “In general, for surface mixes, if you look at a state such as Kansas, Missouri, the panhandle of Texas where there are less than ideal aggregates, we really push to use recycle there.” As the experts show, RAP is available everywhere. It may take a little extra willpower to get it specified for its best, high-quality use and thus get it in ready supply in all areas, but the product exists on every existing HMA roadway. By examining the limits allowed in your section of the country, you can position yourself for greatest RAP use. Making plans to increase RAP levels in your own organization is the first step toward increasing levels in the all-important surface mixes that Swanson reminded us are in demand all around the country. While educating the masses may not always be easy, it’s necessary when lobbying to increase RAP percent limits—and supply.
: n o i t c a p m o C Europe’s ver Density at the Pa
ABOVE: Roadtec's Jim Walton stated it is common in Europe to close an entire side of the motorway and divert traffic to run on the other lane for many months. While it's common to pull a 35- or 40-foot (10- to 12-m) wide mat in Europe, American crews rarely go wider than 12 to 14 feet (3.6 to 4.2 m) at a time. Photo courtesy of Topcon Positioning Systems, Inc., Livermore, Calif. LEFT: Variable pitch augers in the floor of the hopper replace slats and reblend material right before it's discharged in front of the screed. This technique produces a uniformity of material and temperature in the newly placed mat. Photo courtesy of Terex, Oklahoma City.
Once upon a time,
a contracting crew looked out the plant control house door at a blustery, gray day. Watching cold clouds scuttling by on a low, foggy sky, the superintendent told his team that he was sick of waiting for the brief window of summer to pave. Because she wanted her control house back, the plant operator agreed, and shoved them all out. She shook her fist in the air saying, “Find a way to pave in this cool European weather and don’t ye come back ’til ye do.” It may have gone a little differently than that, but the result is paving crews in the northerly climate of Europe found a way to stretch their paving season by getting mat density at the paver. They accomplished this with both equipment and technique. by AsphaltPro Staff
Equipment for European Paving “The European screed is an answer to the weather of Europe,” Jim Walton, director of international sales for Roadtec, Inc., Chattanooga, said. “The cold springs, falls and even summer mornings cause more temperature segregation in Europe than in the relatively tropical America. The method that was selected to cure these problems was the use of the tamping screed to hammer the mix into as quick a density as possible.” Brodie Hutchins, the general manager for Vogele America, Inc., Chambersburg, Pa., also talked about these screeds. “European screeds are equipped with compaction devices including tamper bar(s) and pressure bar(s). Not only do these devices produce compaction but they also increase the static weight of the screed. A typical European screed will weigh 10,000 pounds [4,535.9 kg] versus a U.S. screed that weighs 7,000 to 8,000 pounds [3,175.1 to 3,628.7 kg]. To run the compaction devices, additional hydraulics are needed from the tractor.” What these tamper screeds end up giving the European paving crew is a higher immediate density than what U.S. crews typically see. “To speak in very general terms,” Hutchins said, “a European screed with a tamper(s) and/or pressure bar(s) will produce densities of 90+ percent whereas
26 January 2010
(American Screed) A screed vibrator is a weighted wheel with weight on one side to spin and create and up and down vibration of the screed plate. Vibration allows for the smoothing of the mix and preparation for the breakdown roller to achieve the initial compaction of the mix. The paving speed of an American paver can be as high as double or triple that of the European. Paving speed = productivity. Photos courtesy of Roadtec, Inc., Chattanooga.
a U.S. vibratory screed will produce densities of 75 to 80 percent. Densities of 99 percent can be achieved with a European screed. Keep in mind that many things contribute to these results including paving speed, mix design, paving thickness, tamper settings, pressure bar settings, vibration settings, etc.” Rick Mings, a paving consultant at Caterpillar Global Paving, Brooklyn Park, Minn., warned contractors against getting too excited about density numbers. “Comparing densities is dicey because you aren’t comparing apples to apples. There are a lot of variables that affect the density of the mix at the screed. Mix designs in Europe are different than in the United States. European paving crews lay a much thicker lift—about 4 inches (10 cm) compared to around 2 inches (5 cm) in the United States. Other factors are ambient temperature, mix temperature, paver model, paver weight, paving speed, etc. “Generally speaking, a typical paver in Europe with a typical mix design at a typical thickness will average around 85 percent density range. U.S. crews operating under U.S. variables can expect the density to be between 75 and 85 percent.”
Techniques for European Paving Achieving a higher density at the paver offers crews a chance to finish rolling more quickly. Considering the relatively slow paving speed European crews experience with tamper bars in place, this might not be a practice U.S. crews want to return to. But European crews do show a propensity for traffic management safety in their slowmoving, wide passes. Sources discuss their techniques for U.S. crews to consider. “It is common in Europe to close an entire side of the motorway and divert traffic to run on the other lane for many months while the repaving process proceeds from as much as 36-inch [91.4-cm] depths,” Walton said. “This causes the pave-back to be as wide as 35 to 40 feet [10 to 12 m] in one pull.”
m
Even with such wide mats, rolling teams keep up with the paver thanks to slow paving speeds and fewer rolling passes. “A mat with higher densities behind the screed offers several advantages,” Hutchins said. “Fewer roller passes, which typically means better smoothness, more time in the tender zone while rolling and a more consistent texture. In a global economy, it’s important for contractors to understand all of the tools and techniques and apply the ones that allow them to best meet their objectives. Contractors are looking at the European technology and finding uses for it; however, the practices and techniques common to the United States also have advantages and contractors outside of the United States are seeing those benefits, too.” Caterpillar’s Mings also discussed pros and cons to the European densities. “Higher densities will decrease the chances of the roller damaging the mat. Higher densities in some cases might require fewer rollers or fewer roller passes to complete compaction to specification. Paving contractors in the United States should carefully weigh the benefits of each method and decide which method best suits their business. A slight improvement in density behind the screed would need to be proved with U.S. mix designs. “A tamper screed has more moving parts—this increases the chances of mechanical failure. A paver is useless if the tamper bar is not functioning. As the tamper bar wears, the performance characteristics of the screed changes, so operators must constantly monitor production and make adjustments to compensate. Failure to compensate can result in poor pavement quality. Because the screed weight is heavier, this will accelerate wear of the entire machine.” Bill Rieken of Terex, Oklahoma City, spoke of the maintenance that crews must know how to perform with the tamper bar screeds. “There’s a lot of adjustment on tamper bar screeds, which are a high-wear item,” he said. “The know-how isn’t out there in the American marketplace. We’d be going back to old technology to borrow from the European practice.” Vogele’s Hutchins agreed. “Compaction devices are wear items and will increase ownership costs. They require a high level of technical understanding to properly set up and operate. Most European screeds are only available with track undercarriages. The high-flotation tires we use in the United States could not be used with a high compaction screed because the tires ‘bounce’ when the compacting devices are operating.” Having these maintenance items in mind, European crews can look forward to possible changes. Roadtec’s Walton pointed out that there are many differences in European and American paving machines and techniques, but the gap is closing. “The difference in paving in Europe and America has to do with weather, equipment and repair techniques. There is a narrowing of the differences in that both areas are adopting SMA mixes and Open Grade Friction Courses. There is a movement in Europe to try Mill and Fill techniques to save time and money as well. “The Roadtec Shuttle Buggy is changing the methods of paving even in Europe. There are European Road Ministries who have tested the use of vibration only when paving with the Roadtec Shuttle Buggy in order to speed the paving process. These tests have been successful and shown that paving with a Shuttle Buggy eliminates the need to use the tamping bar and slow the paving process.” Terex’s Rieken also sees contractors favoring pavers with variable pitch augers that replace slats in the paver’s hopper to reblend material right before it’s discharged in front of the screed. He stated this offers a uniformity of material and temperature that aids in quality control and a faster paving speed in a way tamper screeds cannot, and he’s pushing to market this concept in Europe. Weather, mix design, paving widths and depths, and production demands come to bear on what technology and techniques a paving crew ultimately selects. Crews around the globe can compare notes and share ideas to create best scenarios, and equipment manufacturers are always willing to weigh in with technology tips. As the staff of AsphaltPro brings you future paving and production application stories from around the world in 2010, see how they relate to your upcoming projects and technical quandaries. 28 January 2010
“The difference in paving in Europe and America has to do with weather, equipment and repair techniques. There is a narrowing of the differences in that both areas are adopting SMA mixes and Open Grade Friction Courses.” —Jim Walton, Roadtec
(European Screed) The tamper bars (in red) essentially are hammers that hit the leading edge of asphalt mix and “tamp” it under the screed. This hammering sets the breakdown normally performed by the first roller in a U.S. rolling train. The down side to this is the speed. Paving speed is limited to a maximum of 10 to 12 feet (3 to 3.6 m) per minute. The technique of paving in Europe is to pave much wider than normally done in America to make up for the slower speed. Photo courtesy of Roadtec, Inc., Chattanooga.
Changing Dust Streams Require Changing Bag Technology
As material from quarries produces finer dust and reused oils get into the plant’s airstream, the baghouse works overtime by Cathy Maher
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n recent years, hot mix asphalt (HMA) plant baghouses have experienced problems when their filter bags are no longer able to handle the dust stream. The dust stream either blinds the bags—choking the baghouse and dryer—or bleeds through the bags. When the team at Summit Filter Corp., Union, N.J., examined bags from problem plants a few years ago, we were surprised to find sub-micron particles in the matrix of 14-ounce Aramid bags as shown in the Scan-
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ning Electron Microscope (SEM) photograph below (See Photo 1). Compared to the nominal 2-micron diameter of the fibers shown in the picture, the dust particles were mostly sub-micron; a problem we had seldom witnessed in asphalt plants. Particle size analysis of the incoming dust from several affected asphalt plants showed similar size distribution patterns with 20 percent of the dust going into the baghouse below 2 microns. While the average size was around 20 microns, a significant portion of the dust was submicron. In the case of a particular plant in Pennsylvania, 20 percent of the dust particles were below 2 microns, which is the limit of particle retention for 14-ounce Nomex. The end result was complete saturation of the clean felt structure (See Photo 2) with a heavy load of fine dust that filled out air passageways of the felt. The drop in permeability created a higher pressure differential across the bag drawing more particles in, eventually causing complete blinding or emission problems.
Photo 1. This Scanning Electron Microscope (SEM) photograph shows submicron particles in the matrix of a 14-ounce Aramid bag. photo 1
Photo 2. This SEM photograph shows complete saturation of the clean felt structure with fine dust.
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Photo 3. This SEM photograph shows the same felt structure completely filled out by sub-micron particles. photo 3
Causes
In discussions with plant operators and equipment experts on the sources of bag failures, one or both of two causes emerged in nearly all instances. • Introduction of new crushing methods • Aging of quarries across the United States The first is primarily due to introduction of vertical shaft crushers in some quarries which inherently produce finer dust. The second
the fabric pores from penetration by fine particles. In absence of the coarse agglomerating particles, no protective layer is formed giving the fine dust the opportunity to penetrate into and fill out the filter passageways.
Solutions
At first blush an expanded PTFE membrane on the dust face of the bag would appear as the ideal solution. Expanded PTFE membrane has proven itself in handling sub-micron particles.
The finer particles resulting from either cause alter the basis of filtration for most baghouses. stems from the difficulties in permitting for new quarries. Subsequently, crushing operations are pressed into using stone with a higher content of silica (Si02), which will produce a higher proportion of fine, non-agglomerating particles. The finer particles resulting from either cause alter the basis of filtration for most baghouses. In a typical asphalt operation, filter bag performance relies on a resident layer of interlocking coarse particles that does the actual filtration. The incoming dust settles on and drops off this resident layer, which protects
Unfortunately the delicate membrane can be abraded quickly in a typical asphalt operation. Moreover, if RAP is used in the operation (or recycled oil is the fuel source), the unburned hydrocarbon aerosols can delaminate the membrane from the fabric. With membrane out of consideration, engineers at Summit set out to develop high temperature felts that could offer comparable filtration efficiencies without the membrane drawbacks. Two separate concepts were tested. • Aramid felts with micro fibers on the surface
• Engineered blends to capture particles with static attraction The first concept relied on producing finer passageways in the felt that would be hard to enter and block off. The second concept used electrostatic forces to attract and arrest particles before they could travel into the felt. With both concepts proven valid, it became apparent that the requisite performance could best be achieved by combining both features. The outcome was the development of Golden Hawk, Golden Eagle and Golden Phoenix felts, which represent solutions for the asphalt industry in ascending order. These fabrics are designed to maximize cost benefits for differing operations and solutions for handling fines beyond the range of 14-ounce or 16-ounce Aramid felts. Their filtration efficiencies approach that of PTFE membrane Aramids but they perform with no fear of abrasion or delamination. All of the felts in Summit’s Golden series are available with a number of finishes to handle acids or hydrocarbon aerosols from waste oil or RAP. Cathy Maher is the director of sales at Summit Filter. For more information, contact her at (800) 321-4850 or visit www.summitfilter.com.
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WOA Exhibitors, presenters offer building blocks for contractors, producers, materials suppliers to grow in 2010
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s with any trade show, the World of Asphalt and AGG1 2010 Aggregates Forum & Expo this Feb. 15 through 18 in Cincinatti will offer attendees a variety of vendors exhibiting their wares in a wide open showroom of glitz and excitement. But there’s more going on at this year’s co-located WOA and AGG1 than first meets the eye. Maybe you’ve heard rumors of busloads of other conference attendees rolling in from another state. Maybe you’ve heard of a day of free safety seminars designed to bring you up to speed on topics that can save workers’ lives— and possibly save you some moolah in the fines department, too. Maybe you’ve heard of a chance to win free prizes and big money from AsphaltPro Magazine. These things are all fact. First off, this year’s WOA AGG1 folds in participation from several sources. The show administration—the Association of Equipment Manufacturers (AEM)—proudly co-locates WOA and AGG1 with the Traffic Management & Work Zone Safety Power Workshop, Flexible Pavements of Ohio, Plantmix Asphalt Industry of Kentucky, and accepts sponsorship from the Ohio Asphalt Paving Conference. The show is co-owned by AEM, the National Asphalt Pavement Association (NAPA) and the National Stone, Sand & Gravel Association (NSSGA). 34 January 2010
The conference program will feature the Asphalt Pavement Alliance’s Asphalt Pavement Conference Monday through Tuesday for $250. NAPA’s People, Plants and Paving Training Program runs Tuesday through Thursday for $65 to $110, depending on number of tickets and date of purchase. Sponsors of NAPA’s sessions include NAPA, the Asphalt Emulsion Manufacturers Association (AEMA), the Asphalt Recycling and Reclaiming Association (ARRA) and the International Slurry Surfacing Association (ISSA). The Occupational Safety and Health Association (OSHA) 10-hour Course for Construction Workers takes place Monday and Tuesday and is $250. The 2010 AGG1 Academy runs Tuesday through Thursday morning. A seminar titled Project Management Essentials will be held from 1 to 5 on Thursday; cost is $150. The National Traffic Management and Work Zone Safety Power Workshops take place all day Wednesday. While the safety workshops are free to anyone who wants to attend, you do need to register ahead of time. Visit www. worldofasphalt.com and click on Education to do so. It sounds as though each concurrent association or seminar track will be packed with staggered agendas, which makes for a busy
tradeshow floor when the doors open each morning at 11:15 (Tuesday), 11 (Wednesday), and 9 (Thursday). When the doors open, be sure your first stop is Booth 743 to visit your AsphaltPro staff and to pick up your Road Race score card and a free asphalt industry t-shirt (see ad on page 32). You can’t succeed at this year’s show without it. This card contains a set of questions that specific exhibitors have the answers to. Make your pit stops in those exhibitors’ booths, get the answers to the questions, and take the completed card back to AsphaltPro’s booth to enter drawings for cool free prizes and the awesome grand prize: $1,000. Exhibitors from A to Z have joined the ranks this year to bring you information and product offerings to enhance your bottom line. The trade show floor will be crowded with vendors vying for your time. AsphaltPro staff has compiled a list of those who cater specifically to readers’ interests by communicating with magazine staff. These are the exhibitors who understand the value you, the attendee, bring to the industry and they’ve got information you can use to grow your business. Make sure they’re part of your show experience at WOA AGG1 next month.
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ACE Group, LLC Booth 1607 Take Part in the ACE Booth
The parts professionals from ACE Group, LLC, Willmar, Minn., offer ACEBOND Chromium Carbide screeds and floors for pavers, pick up machines and plant applications. The Chromium Carbide floor plates are designed to reduce the friction between the floors, chain & bar assembly and the aggregate, thus increasing wear life of the chain and bar. ACE Group also offers augers, screeds and extension plates, tracks and components, and chain & bar assemblies for various pavers, MC30/MC330 machines, pick up machines, shuttle buggies, flowboy trailers/ red river trailers, plant chain, motors, gearboxes and components. ACE parts are available in ACE Group’s AR450, AR500 and ACEBOND Chromium Carbide. ACE Group, LLC, also manufactures the industry’s leading RAP processing mill called RAPwrangler and shaker decks.
Asphalt Drum Mixers Booth 1001 ADM Highlights Milemaker
The experts at Asphalt Drum Mixers, Inc., Huntertown, Ind., will feature their Milemaker series hot mix asphalt (HMA) plant, as well as their two other lines, the Roadbuilder and SPL, at the show this year.
Asphalt Reheat Systems, LLC Booth 434 Get Behind the Reheat Revolution
Asphalt Reheat Systems, LLC, Madison, Wis., is a contractor-owned manufacturer of asphalt re-heating units. Their most popular products are the portable infrared heaters. The 4-foot x 4-foot and 4-foot x 6 foot units are the most commonly used heaters in the
industry for maintenance, stamped asphalt or repairs to asphalt pavement. They’ll have their popular walkbehind, portable units on display at the show.
AsphaltPro Magazine Booth 743 Publishers Give Away Money, Prizes in Road Race
The staff of AsphaltPro Magazine invites you to stop by the industry’s leading publication’s booth as soon as the show opens to get your Road Race Score Card and a free asphalt industry t-shirt. Then you’re off on an amazing race to answer questions, collect stickers and turn in your card at the AsphaltPro booth for your chance to win one
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of three daily cash giveaways or a multitude of other prizes. You’re also in the running for a one-time drawing for the grand prize of $1,000. Participants in the Road Race include vendors around the trade show floor and we’ll announce them right here in the February issue of AsphaltPro. Stop by the magazine bins to get your copy. Or stop by the booth to pick it up. All the information you need will be at the show! Also fill out a new subscription card while you’re at the show to make sure you never miss an issue of the industry’s most informative publication. From petroleum to production, we’ve got the technical information in a down-to-earth format that tells you how to test the product and get it on the ground professionally. Your AsphaltPro staff pioneered the how-to editorial concept, and we bring it to you proudly in every issue. From month to month, let us help you build your bottom line.
injection valves, visual flow indicators and more. Astec will also display a 1/8 scale model of the Double Barrel® Drum and a tank farm featuring CEI Enterprises and Heatec. CEI Enterprises will display a tabletop model of a complete Nomad® facility.
Asphalt Zipper, Inc. Booth 1620 Get More Maintenance Done
The construction professionals at Caterpillar Paving Products, Brooklyn Park, Minn., will display a variety of paving equipment at this year’s show. They invite you to check out the AP555E asphalt paver, designed for a wide range of commercial applications from parking lots to streets. It features an EPA Tier 3 compliant engine with front mounted cooling system, dual operation stations with the Advisor Monitoring System (AMS) and the innovative Cat® material handling system with independent auger and conveyor controls. The AP555E is equipped with the exclusive Cat Mobil-Trac™ system. Also see the Cat CD54 drum steer vibratory asphalt compactor, which features drum steering, split drums and a C4.4 engine with ACERT® Technology that meets EPA Tier 3 emissions requirements. They will also display the PM200 cold planer, which is a half-lane milling machine that performs controlled full-depth removal of asphalt and concrete pavements in a single pass. Contact Corey Hanback on the tradeshow floor at (612) 709-9121.
The portable, high-powered asphalt recycling machines from Asphalt Zipper, Inc., Pleasant Grove, Utah, are designed to get three to four times as much work done for the same amount of budget. They represent a revolutionary way to repair and maintain asphalt roads. They’re designed for front-end loaders, pulverize asphalt up to 12 inches thick and 48 inches wide, are powered by 203-horsepower Cummins turbo diesel engine, can be transported on a trailer behind a pickup truck, and will pulverize more than 4,500 square feet per hour.
Astec Industries Booth 727 Green Down with Astec’s Simpler System
Astec Industries, Chattanooga, will showcase a full size display of the new second-generation design for the industry leading Double Barrel Green® system, which features simpler control, minimal hot oil jacket, self-cleaning water
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Caterpillar Paving Products Booth 1210 Cat Offers Variety
E.D. Etnyre Company Booth 1326 Distribute Time Wisely for Etnyre Trailer Display
See a VWSB 2,000-gallon distributor truck with the latest computer controlled spray system at the E.D. Etnyre Co., Oregon, Ill., booth. The company will also have a
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semi-live bottom belt trailer on display. The trailer is designed for asphalt, aggregate and slurry operations. If you have financing or sales questions, contact Brian Horner at (815) 977-1663.
Etheridge Automation Booth 1837 Automate Your Material Operation Etheridge Automation, Midlothian, Va., will display a product demo of its Quarry Information Management System. This will be a computer simulation of the company’s crushing process automation system. Personnel will be discussing how to improve quarry production and efficiency through implementation of automation systems. The product line ranges from small single crushing circuit automation to complete plant systems and they tailor the systems to fit all sizes of plants and budgets. Personnel will discuss innovative solutions to efficiency problems with products such as their Software Speed Switches and the Etheridge Maximizer Probe for level measurement. Etheridge Automation is committed to successful installations and guarantees a 10 percent production increase. Also look for Matt Etheridge’s presentation on Automation: Small Projects, Big Profits at the AGG1 Show.
EZ Street Co. Booth 1716 Set Up Your Franchise with EZ Street
At this year’s WOA the team from EZ Street© Co., Miami, will be displaying their traditional widely used EZ Street Cold Asphalt as well as their EZ Street Hybrid Technology product, which is currently being manufactured in select markets around the country with plans to roll out into other cities in the near future. The EZ Street Hybrid Technology™ is a new formulation of EZ Street cold asphalt, leveraging modern recycling techniques and the latest in alternative fuel sources. Through research and development, they have been able to engage these technologies to help build a more relevant EZ Street product with portions of the mix containing 100 percent less fossil fuel derivatives. The EZ Street team is always looking for quality asphalt producers around the country and world to partner with in select and targeted markets. They encourage producers to stop by the booth to learn more about the exciting opportunity to work with EZ Street
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world of asphalt in the advanced cold asphalt market and the chance to build a profitable business within a business for many years to come. For a special meeting relating to sales discussions please contact Tom Francione, Director of Sales—USA, at (305) 663-3090.
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BCS burner control systems, their Ultra Low NOx NovaStar burner, their FGR (Flue Gas Recirculation) and their open-fired combustion systems. Stop by to connect with Rick Carpenter and to check out the prize/giveaway option at the booth.
IROCK Crushers, LLC Booth 1336 New Hydraset Technology Makes Moves Faster
FastMeasure by KTP Enterprise, Inc. Booth 1527 Go the Distance with FastMeasure
See the FastMeasure distance measuring device from KTP Enterprise, Inc., Riverwoods, Ill. FastMeasure mounts on the dashboard and is designed to help engineers and contractors quickly and accurately measure parking lots, roads, utilities and more in the comfort of their car up to highway speeds. Some of the key features include small size, accuracy of 1 foot in a mile, easy to use with just two buttons, effortless calibration, and English and metric distance and speed measurements. FastMeasure can be installed on anything that rolls paves, grinders, stripes, etc. for accurate accounting and billing. While you’re at the booth, ask about the soon-to-be-released FastMeasure QUAD— four FastMeasure displays with a key fob size remote control to turn each meter on and off independently. The FastMeasure QUAD is designed for road striping contractors who want to measure up to four lines at one time. If you’d like to reserve time to discuss financing or sales, contact Ernie Kaplan at (847) 494-1100, or just stop by the booth any time during the show.
Hauck Manufacturing Company Booth 1407 Burn with Eco-Style
The team from Hauck Manufacturing Co., Lebanon, Pa., will have information on their
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IROCK Crushers, LLC, Valley View, Ohio, manufactures and sells rock crushing equipment throughout North America and has been in business for more than 20 years. IROCK equipment is primarily used by demolition contractors, recycling facilities that process concrete and asphalt, and for aggregate production in rock quarries. This year, IROCK professionals will display and have information on a variety of compact crushing and screening plants used for processing quarry rock, demolition debris and recyclable materials including asphalt and concrete at their booth. Don’t miss the RDS-15 primary crusher or the new Hydraset hopper system, which is designed to attach and remove the hopper/ feeder module from the RDS-15 and RDS-20 portable rock crushers as a unit without the aid of any outside lifting devices, allowing the entire module to be detached and transported in minutes. The Hydraset comes with its own internal power pack. Contact Sean Donaghy at (866) 240-0201 for appointments to discuss dealership opportunities and special AED sales discussions and financing at the show.
KPI-JCI and Astec Mobile Screens Booth 1921 Be FRAP Ready
The team that brings you beFRAPready.com also brings you an impressive display. Stop by the booth to see a PROSIZER with a 100 percent buyback guarantee. Visit with team members from KPI-JCI and Astec Mobile Screens, Yankton, S.D.
Kenco Engineering, Inc. Booth 1337 Meet Kenco’s Newest Rep
The professionals at Kenco Engineering, Inc., Roseville, Calif., will proudly display their new cut-away models of a typical counterflow drum mix plant as well as a typical silo to
demonstrate the benefits of Kenco’s broad line of long wearlife products. The crew would like to announce the latest addition to the Kenco sales team: Tom DeWitte, who brings nearly 30 years experience in the construction industry, joins Kenco as the regional sales manager for the New York, Pennsylvania and Maryland region. He also will be Kenco Engineering’s national sales manager for the rotomilling, profiling and stabilization industry. To reserve a time to discuss financing and sales before the show, contact Jeff Robinson at (916) 622-2527, or just stop by the booth to visit with Jeff, Tom or Brian Handshoe.
LibraSystems Booth 1727 Libra Debuts Dispatch Software
When you stop by the Libra Systems, Inc., Harleysville, Pa., booth, you’ll see something new as well as desktop models of their tried and true equipment. This year the company debuts its new dispatch software for the asphalt and aggregate industries. This tool helps forecast, organize and manage job/ truck scheduling to make the most efficient use of resources and thereby improve the bottom line. It uses real-time feedback to show job performance, conflicts and potential truck shortages. Also check out Libra’s asphalt plant automation, centralized management software, central/local dispatch software, truck scale ticketing systems, silo safety systems, and selfservice kiosks, which are designed to increase truck throughput without increasing costs. For financing or sales, contact Ken Cardy at (215) 256-1700 x103.
Major Wire Industries, Ltd. Booth 1900 Screen RAP and Agg with the Pros
Now celebrating its 125th anniversary, Major Wire Industries, Ltd., Candiac, Quebec, designs, manufactures and markets screening solutions, including Flex-Mat® 3 high-performance, selfcleaning screen media; Flex-Thane®, a Flex-Mat solution for flat-deck screens; OptimumWire® and stainless steel woven wire cloth; and polyurethane panels for the quarry, mining, recycling, road building, green waste, top soil and industrial markets. Visit their team
halt world of asphalt rld of asphalt at WOA/AGG1 to get a first-hand look at the Flex-Mat 3 media, which is designed to increase throughput of spec product by up to 40 percent over woven wire or polyurethane panels by eliminating blinding, pegging and clogging. Also check out the OptimumWire, which is manufactured with a high carbon and high manganese content, to provide great resistance to abrasion. Many operations using OptimumWire can also increase open area by choosing one smaller wire diameter size to maximize material throughput without sacrificing wear life.
Maxam Booth 719 Save Energy with Maxam Equipment
Maxam Equipment, Kansas City, Mo., personnel will be showing four innovative, energy saving products in their booth at WOA. The products on display will be components of the patented SOLO™ Counter-flow drum. Featured are the TrooTrac™ self-aligning trunnions, RAPTOR® recycle system, the AQUABlack warm-mix asphalt (WMA) foaming system that will be on display at the show, and the MAXAMizer® heat recovery system that is designed to minimize fuel use and protect bags from muddying and corrosion problems at low temperatures. Engineers will explain how the products work and how each one lowers the operating cost of producing HMA or WMA. Stop by the booth to meet Maxam’s Regional Sales Managers Eric Hutchison and Keith Wade.
Meeker Equipment Booth 507 Check Out Meeker’s WMA System
Meeker Equipment Co., Inc., Lansdale, Pa., will display its Hydro-Foam warm-mix asphalt system and Patriot hot oil heater. To reserve a special consultation with Bill Garrett, contact him ahead of time at (267) 446-3796 or stop by booth 507 to see him at the show.
Pavesmart Booth 326 Pave with a Smarter System
Stop by to visit with Bob Holland, Marilyn Dunn and other members of the team from PaveSmart, Stone Mountain, Ga. They’ll have information about the company’s grade control
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system, road design system and survey profiler. To reserve a time to speak with Holland at the show, contact him at (800) 719-PAVE, or just stop by the booth any time during the show.
Process Heating Co. Booth 616 Get Electric
The heating professionals from Process Heating, Co., Seattle, will present their line of unitized tank heaters, hot oil heat transfer systems and fuel oil preheaters. Their hot oil heat transfer systems use a “lo-density” heat designed to eliminate coking of transfer fluid and are available in sizes from 10 to 250 kw. The fuel oil preheaters are suited for heavier or waste oil fuels and designed to eliminate coking at less than 10 watts per square inch.
Reliable Asphalt Products, Inc. Booth 429 Select Reliable Equipment
A variety of products from Reliable Asphalt Products, Inc., Shelbyville, Ky., will be on display, including the company’s new Aqua Foam® warm-mix asphalt system, flights, pump skid and other components used to run an asphalt plant. Aqua Foam is a system designed and engineered for the sole purpose of suspending water molecules in liquid asphalt, resulting in "foamed" asphalt. Stop by to see what fancy giveaways you could win and learn more about Reliable Asphalt Products.
Roadtec Booth 827 View Roadtec’s Paving Products
The professionals from ROADTEC an Astec Industries company, Chattanooga, will display their MTV1000D material transfer device, RP-195 asphalt paver and RX-500 cold planer at the show, as well as the Shuttle Buggy
world of asphalt Model SB-1500D, pictured here. It’s lighter and narrower than the SB2500-D and has a surge bin capacity of 15 tons. Visit the Roadtec team to learn more about the new SmoothMill™ digital milling automatics, the new Auto Resume feature on their cold planers, the new Screed Boost feature for pavers, and much more. They also want to tell you about the new Sandvik drums and diamond cutting teeth. The SB-1500D Shuttle Buggy material transfer device will be at the show. It’s more compact than the SB2500-D and just as effective at eliminating temperature segregation. To reserve a time to discuss sales or financing, contact John Irvine, VP of sales at (319) 431-0594, or just stop by the booth during the show.
Rotochopper Booth 615 Get Specs on the RG-1
Representatives from Rotochopper, Inc., St. Martin, Minn., will be available to discuss the Rotochopper RG-1 asphalt shingle grinder. The RG-1 is the only machine designed specifically to convert raw asphalt shingle waste into a supplement for virgin asphalt cement. Available with diesel or electric power, the RG-1 offers low wear costs. Its exclusive features, including a unique grinding chamber, optimize single-pass grinding efficiency and minimize maintenance time. To set up a time to visit with a Rotochopper rep at the booth, contact Monte Hight at (320) 548-3586 before the show or stop by booth 615.
Safeco Industries Booth 918 Visit a Winner in Safety
The safety professionals from Safeco Industries, Inc., Chandler, Ariz., are the proud winners of a 2009 ATSSA Innovation Award and will display their innovative products at this year’s show. Stop by to see their internally illuminated LED flagger and crossing guard paddles as well as their LED vests. Set up a time to visit with Jason Simms at (480) 347-5451.
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asphalt world of asphalt world of asphalt Stansteel/Hotmix Parts Booth 1105 Leverage Existing Equipment, Improve Operations with Stansteel
The plant professionals at Stansteel/Hotmix Parts, Louisville, Ky., invite you to leverage your existing investment and make your plant run better. In the current economic times with irregular tonnages and other factors affecting total asphalt plant volume, Stansteel and Hotmix Parts have come up with a number of items that offer fast pay back and can help improve a plant’s existing productivity, efficiency and environmental friendly capability. They’ll have information on specific recycling options for new plants or existing plants. This includes items such as the Turbo RAP Gator® Recycling Breaker, heavy duty multiple recycle bins and also ways to heat, dry and mix material more efficiently. They will also have specific materials about their ability to convert parallel flow drum mixers into a counterflow drum process.
They offer multiple options and ways to save contractors money over scrapping equipment and buying all brand new. This will include counterflow drum mixers, dryers with rotary mixers and complete counterflow drum plants as well as combo plants. They will feature a number of innovative products such as the Accu-Shear™ multiple blending system including both chemical and water/warm mix options and the NiteOwl® advanced plant alert system. This is a valuable plant superintendent tool to help monitor the liquid asphalt temperature 24 hours a day/7 days a week. The unit will also act as an alarm if the circulating temperature has either risen to too high a level or has dropped below a certain level.
Suit-Kote Corporation Booth 1621 Learn About LEA Technology
The representatives from Suit-Kote Corp., Cortland, N.Y., will be on hand to discuss the benefits of low emission asphalt (LEA) warm-mix technology and the dozens of projects it has been a part
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of across the state of New York since 2006. LEA is based on the low energy process developed in France and relies on a chemical additive and sequential mixing to yield a 35 to 50 percent reduction in energy consumption over hot mix asphalt. To schedule a conversation ahead of time, contact Steve Headrick at (800) 622-5636 or stop by the booth any time during the show.
Superior Industries Booth 2317 Pull Up to Superior’s New Line
The representatives from Superior Industries, Morris, Minn., plan to unveil pieces from the company’s updated conveyor pulley line at this year’s WOA/AGG1 Aggregates Forum & Expo. Represented in the booth display will be samples from Superior’s mine duty, super duty and engineered class style pulley lines. Also on display, the company’s innovatively designed Chevron® wing pulley. This v-shaped pulley
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of asphalt world of asphalt worldworld of asphalt
deflects incoming material out and away making it next to impossible for rocks and other fugitive material to wedge between the pulley’s fins. Superior Industries designs and fabricates a full line of conveying equipment, telescoping conveyors, design-build conveyor systems, feed systems, conveyor idlers, pulleys, as well as other conveyor components. Besides Morris, the company operates from manufacturing facilities in Prescott Valley, Ariz., and Norcross, Ga. To reserve a time to discuss financing or sales, contact Corey Poppe before the show at info@superior-ind.com, or just stop by the booth. You don’t want to miss your chance to win a model TeleStacker® Conveyor.
Tarmac Booth 330 Customize Your Parts with Tarmac
The entire sales team from Tarmac International, Inc., Blue Springs, Mo., will be on hand to answer questions about new customized equipment as well as used equipment and replacement parts. Call Ron Heap at (816) 916-6806 to reserve a special time to discuss financing and sales, or stop by the booth any time during the show.
Terex Corporation Booth 711 Reclaim Terex Information
Paving professionals from Terex Roadbuilding, Oklahoma City, will have displays and representatives from their asphalt plant, asphalt mobile equipment, and crushing and screening equipment divisions. The exhibit will include machinery from the mobile equipment division. Be sure to check out the new Terex® RS445C reclaimer/stabilizer from Terex Roadbuilding, which features hydrostatic planetary drive at each wheel, so the machine boasts true four-wheel drive. With no axles, flow dividers or lock differentials, the
RS445C delivers the power and traction required for a wide range of applications, ranging from deep stabilization with lime slurry to a demanding reclamation cut pushing a tanker up hill. This newest addition to the 400 hp (298 kW) class of reclaimer/stabilizer increases draw-bar pull by more than 40 percent over the Terex® RS425C. Representatives from the asphalt plant group will be there to discuss Terex plant equipment and the warm-mix asphalt system. To set up a special time to discuss financing or sales ahead of time, contact Julio Valladares at (888) TerexRB, or just stop by the booth.
TransTech Systems, Inc. Booth 227 TransTech Unveils New Gauges Quality control experts from TransTech Systems, Inc., Schenectady, N.Y., celebrating their 15th year will have their non-nuclear asphalt and soil density gauges on display. Stop by to see them unveil their next generation of gauges for the industry. Ask for Jaret Morse at the booth.
asphalt world of asphalt world of asphalt Weiler Booth 1110 Visit Weiler’s Material Movers
The professionals from Weiler, Knoxville, Iowa, will showcase one of their material transfer vehicles and a road widener at this year’s show. Contact Bill Hood at (641) 828-5243 to reserve a time to discuss financing and sales, or just stop by the booth to see the equipment.
Wirtgen America Booth 511 Wirtgen Unveils New Half-Lane Cold Mills at the Show Wirtgen America, Inc., Antioch, Tenn., will introduce two new large cold mills—the W 200 and W 210. Their Parallel-to-Surface technology keeps the cutter housing level as the W 200 and W 210 move into a cut, accelerating production, and their “smart” WIDRIVE technology offers new microprocessorcontrolled enhancements to machine control systems, tying all main functions to a single source to manage fuel costs, tooth costs and other variables. Their Intelligent Speed Control
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system incorporates an electronic flow divider that makes the four tracks work in harmony when turning a radius. They incorporate the familiar Level Pro, Wirtgen’s existing automatic leveling system, which regulates the pre-set milling depth and actual readout electronically. Asphalt and concrete milling is one of the most abrasive environments for any machine, but their new Vacuum Cutting System is designed to remove dust, fines and smoke from the cutter chamber and extract it out the conveyor, keeping the machine cleaner and prolonging component life. And Wirtgen’s new 3DS Flexible Application Drum Speed system will automatically slow drum speeds in deep cuts, saving on fuel consumption and tooth wear. Also exhibited will be the new HD+ Series of asphalt compactors from Hamm Compaction Division. The HD+ 120 and HD+ 140 rollers are articulated tandem rollers, with respective operating weights of 13.8 and 14.5 tons, and respective drum widths of 78 and 84 inches. The Hamm Compact Line of smaller rollers also will be displayed. Vision Series asphalt pavers from Vögele America, Inc., small-size cold mills from Wirtgen America, and materials processing equipment from Kleemann also will be represented.
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here's how it works
Krendl’s KP1000 Feeder Machine
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y mixing in an additive such as AdveraWMA, producers can lower production temperatures and create warm mix asphalt (WMA) at the hot mix asphalt (HMA) plant. When introducing the new additive, personnel hook up a metering device, sometimes called a feeder or blower, which proportions the product flow rate automatically depending on the rate of production at the plant. The engineers at Krendl Machine Co., Delphos, Ohio, offer a variety of computer controlled gravimetric metering devices for dispensing additives into the production process. The model KP1000 Feeder Machine takes care of the fiber product AdveraWMA. Here’s how it works: First, bags or super sacks of the mineral filler are fed into the hopper, which has a capacity of 100 cubic feet (3 cu m) or about 1,200 pounds 46 January 2010
(546 kg). As product flows from the hopper through a funnel to an air stream, the machine’s 20-horsepower positive displacement blower pushes material through a hose and to the asphalt plant’s drum. The blower is integrated with a 4-inch (100-cm) venturi eductor and moves material with 340 CFMs of air and 8 PSI at a rate of anywhere from 8 to 40 pounds (3.6 to 18.1 kg) per minute, depending on plant production. The MC-3 material dispensing system, which is a gravimetric rate controller, meters the material into a continuous process, sensing and correcting the feed rate as needed. The hose deposits the mineral filler into the mixing chamber at the asphalt plant where it produces a sustained, time-release foaming of the asphalt binder, resulting in lower production temperature requirements.
For more information about the Krendl KP1000 Feeder Machine, contact Krendl Machine Co., at (419) 692-3060 or visit www.krendlmachine.com.
Show us How it Works If you’re an equipment manufacturer with a complex product, let us help you explain its inner workings to the readers of Asphalt Pro magazine. There’s no charge for this editorial department, but our staff reserves the right to decide what equipment fits the parameters of a HHIW feature. Contact our editor at sandy@theasphaltpro.com.
the last cut Watch for New Crude Pricing by AsphaltPro Staff
T
he Energy Information Administration (EIA) reported that the United States imported a little more than 1 million barrels of crude oil every day from Saudi Arabia during the first eight months of last year. Anyone paying attention to trends will see that number is substantially lower than it was in 2008. EIA will tell you it’s 33 percent lower. Despite that decline in need, Saudi Arabia was still, according to EIA, the third largest source of crude oil for the United States. So the asphalt industry that relies on crude byproducts should take note when Saudi Aramco announces that, starting with January shipments, the company will change the way it prices its product. According to EIA, Saudi Aramco will now price the crude oil it delivers to the U.S. Gulf Coast market based on the Argus Sour Crude Index (ASCI). EIA reported that ASCI is based on spot trading in several crude oil grades from the Gulf of Mexico—Mars, Poseidon and Southern Green Canyon. They also stated that the Mars Blend is the largest of the traded streams. We’ll watch to see how contracts and physical delivery shake out at the end of January and bring you that news. In the meantime, third quarter 2009 (Q309) earnings reports are in for oil and natural gas producers. EIA reported in mid-December that “Based on data available at the time of the publication of the quarterly reports, crude oil prices paid by U.S. refiners averaged $66.37 per barrel in Q309, down by more than 40 percent from the $113.52 per barrel recorded in the third quarter of 2008 (Q308).” What EIA showed is “Earnings of oil and natural gas producers, refiner/ marketers and oil field companies fell sharply in Q309 compared to a year ago, continuing the trend towards lower profitability evident during the first half of 2009. These results are drawn from quarterly EIA reporting on the financial performance of energy companies that together represent about half of U.S. oil and gas production and the majority of U.S. refining.” As several hot mix asphalt (HMA) producer members of the construction industry delve into the business of running terminals, such news brings new importance to cost-saving measures and best business practices. Liquid asphalt suppliers, terminal owners, refinery operators and others likely have opinions on this topic and are welcome to provide facts and information to assuage producers’ worries. This column is intended to educate and inform, and anyone with a stake in the industry is welcome to participate in that education at any time. Send your proposals, comments or articles to the editor at sandy@theasphaltpro.com.
Liquid Asphalt Cement Prices Company, State
Avg/ton
Avg/ton
ConocoPhillips, Tenn.
$380.00
$425.00
NuStar Energy, Ga.
410.00
410.00
NuStar Energy, N.C.
410.00
410.00
NuStar Energy, S.C.
410.00
410.00
NuStar Energy, Va.
410.00
422.50
Associated Asphalt Inman, N.C.
400.00
430.00
Associated Asphalt Inman, S.C.
400.00
430.00
Associated Asphalt Inman, Va.
400.00
430.00
Marathon Petroleum, Tenn.
355.00
425.00
Marathon Petroleum, N.C.
365.00
410.00
Valero Marketing & Supply, N.C.
410.00
410.00
Valero Marketing & Supply, Va.
410.00
410.00
Massachusetts Average
420.00
420.00
California Average
394.90
394.70
Missouri Average
392.50
410.00
Valero Marketing & Supply, Va.
410.00
410.00
Massachusetts Average
420.00
420.00
California Average
394.90
394.70
Missouri Average
392.50
410.00
Data for Southeast region, Source: ncdot.org; Data for Massachusetts, Source: mass.gov; Data for California, Source: dot.ca.gov; Data for Missouri, Source: modot.mo.gov
Oil Price Report—November Crude Oil (WTI) Spot Price Gasoline (NY)
Diesel Fuel Retail Price (per gallon)
Dec 4, ’09
Early Dec ’08
Dec 11, ’09
Mid Dec ’08
Dec. 01, ’09
$2.775
$75.41/barrel
$41.01/barrel
$69.86/barrel
$46.27/barrel
Dec. 07, ’09
$2.772
1.965/gal
0.908/gal
1.820/gal
1.065 /gal
Dec. 14, ’09
$2.748
Spot Price Diesel Fuel (NY)
2.011/gal
1.415/gal
1.889 /gal
1.479 /gal
Spot Price Heating Oil (NY)
1.993/gal
1.405 /gal
1.879 /gal
1.469 /gal
Spot Price Propane (GC)
1.155/gal
0.532/gal
1.115 /gal
0.602 /gal
Data for Oil Price Report December 2009 and 2008, Source: Energy Information Administration 48 January 2010
Source: Energy Information Administration
resource directory www.asphaltace.com
B & S Light................... 37 Contact: Mike Young Tel: 918-342-1160 Sales@bslight.com www.bslight.com
Aesco Madsen............. 50 Contact: John Ferris Tel: (253) 939-4150 Jferris@aescomadsen.com www.aescomadsen.com
CEI...................................4 Contact: Andy Guth Tel: 800-545-4034 info@ceienterprises.com www.ceienterprises.com
Asphalt Drum Mixers....... ........................... 9, 24, 25 Contact: Steve Shawd or Jeff Dunne Tel: 260-637-5729
Eagle Crusher. . . ………..41 Tel: 800-25-EAGLE Sales@eaglecrusher.com www.eaglecrusher.com
sales@admasphaltplants.com
Heatec, Inc. ...........Inside Front Cover Contact: Sharlene Burney Tel: 800-235-5200 sburney@heatec.com www.heatec.com
ACE Group............. 29, 45 Contact: Carl McKenzie Tel: 888-878-0898 sales.enquiries@ashaltacesales.com
www.admasphaltplants.com Astec, Inc..................... 27 Contact: Used Equipment Tel: 423 867 4210 www.astecused.com
Homestead Valve………..31 Tel:610-770-1100 Sales@homesteadvalves.com
www.homesteadvalves.com Hotmix Parts/ Stansteel.........................7 Contact: Dawn Kochert Tel: 800-826-0223 dkochert@hotmixparts.com www.hotmixparts.com
KPI-JCI and Astec Mobile Screens............ 23 Contact: Lisa Carson Tel: 605-668-2425 lisacarson@kpijci.com www.kpijci.com
Process Heating.......... 35 Contact: Ron Jay or Rick Jay Tel 866-682-1582 Ron@processheating.com Rick@processheating.com www.processheating.com
Stansteel Asphalt Plant Products...............7 Contact: Tom McCune Tel: 800-826-0223 tmccune@stansteel.com www.stansteel.com
Libra Systems.............. 43 Contact: Ken Cardy Tel: 215-256-1700 Sales@librasystems.com www.librasystems.com
Recycling & Processing Equipment Inc…......... 11 Contact: Jerry Lambert Office Tel 765-472-5500 Cell 765-469-7600 L3048@aol.com
Systems Equipment.... 42 Contact: Dave Enyart Sr. Tel: 563-568-6387
Iowa Parts.................... 17 Contact: Jay King Tel: 800-821-6799
Maxam Equipment……13, 47 Contact: Lonnie Greene Tel: 800-292-6070
Kenco Engineering................. 16 Contact: Brad
lgreene@maxamequipment.com
Reliable Asphalt Products........Back Cover Contact: Charles Grote Tel: 502-647-1782
www.maxamequipment.com
charlesg@reliableasphalt.com
Brad@kencoengineering.com
Pavesmart……30 Contact: Bob Holland Tel 404-242-9167 bholland@pavesmart.com www.pavesmart.com
Tel: 800-363-9856 www.kencoengineering.com
Dlenyart@systemsequipment.com www.systemsequipment.com
Tarmac International, Inc. ............Inside Back Cover Contact: Ron Heap Tel 816-220-0700 info@tarmacinc.com www.tarmacinc.com
www.reliableasphalt.com Roadtec........................ 39 Contact: Sales Tel: 423-265-0600 Sales@roadtec.com www.roadtec.com
Top Quality Paving….44 Contact: John Ball Cell: 603-493-1458 tqpaving@yahoo.com www.tqpaving.com
Asphalt Pro’s Resource Directory is designed for you to have quick access to the manufacturers that can get you the information you need to run your business efficiently. Please support the advertisers that support this magazine and tell them you saw them in Asphalt Pro magazine.