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AI/AEMA emulsion webinar series begins in April
Nationally recognized asphalt emulsion experts are presenting a webinar series in April and May.
The webinars will focus on the characteristics of asphalt emulsions and best practices for their use including choosing the correct treatment for your project.
On Tuesday, April 27 Chris Lubbers of KRATON Polymers will introduce the topic and discuss the chemistry of emulsions. Laurand Lewanowski of PRI Asphalt Technologies will cover emulsion storage, handling, sample testing and grade selection on Tuesday, May 4.
Make Ishe of Ergon Asphalt & Emulsions, Inc. will analyze surface treatments including chip seals, slurry seals and much more on Tuesday, May 11. Arlis Kadrmas of BASF Corporation will discuss emulsion aggregate mixtures on Tuesday, May 18.
The series concludes Tuesday, May 25 with a look at asphalt pavement recycling and other applications with Keith Davidson of McAsphalt Industries, Ltd. Each session begins at noon (EST) and is 2 hours in length with a 10-minute break after the first hour.
Attendees can register online. ...
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AI welcomes QPR as a new member
QPR (Quality Pavement Repair) in Alpharetta, GA is a new Commercial member of the Asphalt Institute.
The company manufactures asphalt cold patch material for pothole repair. This brings AI’s membership total to 106.
Intelligent Compaction is a ‘smart’ innovation
A new tool for improving pavement service life
By Bob Horan, P.E.
“It seems that major innovations in compaction technology come along about every thirty years. The last major innovation in rollers that compact pavement materials was the vibratory roller, which came out in the mid 1970s,” says Chris Connolly, national sales manager for Bomag Americas.
“Now, thirty years later, the latest significant innovation is Intelligent Compaction. Interestingly, Intelligent Compaction (IC) technology is generally applied using vibratory rollers.” Bomag is one of the roller manufacturers that have developed advanced IC technology for use on both single and tandem drum rollers in the North American market.
The Asphalt Institute is partnering with FWHA to study and implement the use of a new technology called Intelligent Compaction (or IC for short) in the United States. IC is an exciting innovation that provides some smart solutions to some of the shortcomings in currently-used compaction equipment and processes. ...
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Record-breaking crowds attend 2010 World of Asphalt and AGG1 shows
The co-located 2010 World of Asphalt Show & Conference and AGG1 Aggregates Forum & Expo concluded a record-breaking run despite the lingering downturn, with packed exhibit aisles and education sessions.
The shows, which were held February 15-18, 2010 at the Duke Energy Center in downtown Cincinnati, Ohio, posted record numbers for registrants, amount of exhibit space taken and number of education session tickets purchased.
Final registration numbers topped a record-breaking 6,200 for the two shows compared to 5,795 for the 2009 events, and included registrants from all 50 states, all 10 Canadian provinces and more than 30 other countries worldwide. More than 25 percent were company presidents/owners, vice presidents, general managers or chief financial officers. All together, 80 percent of registrants were in managerial roles.
The show floor covered a record 87,000-plus net square feet of exhibit space, compared to the 2009 total of 85,900 net square feet. ...
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Spring 2010 Lab Corner - Mastercurves
Mastercurves or: How I learned to stop worrying and love rheological analysis
[With apologies to Stanley Kubrick, and for those of you keeping score —
this is my second ‘sixties reference in the last two Lab Corner articles.
You’d think I was a closet flower child or something.]
By Mike Anderson, P.E.
A mastercurve, with the associated shift factors used to construct it, can be used to fundamentally characterize the behavior of an asphalt binder in which time and temperature dependency are separated. It represents the response of an asphalt binder at a specific temperature across a wide range of frequencies or time. A mastercurve can help asphalt technologists understand the rheology of an asphalt material.
So how do we proceed with trying to build a mastercurve? In asphalt binder testing we use the dynamic shear rheometer (DSR) and test a sample at a range of temperatures and frequencies. ...
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What’s new in asphalt plants?
By John Davis
New technology in asphalt mixing plants around the country involves warm mix asphalt (WMA), recycling, fuel economy, the environment, retrofit and maintenance. Of these, WMA and recycling are the hottest items. But cost reduction, timely maintenance and “going green” are not far behind.
The hottest item, and the one many plant manufacturers are producing new equipment for is warm mix asphalt. WMA technology is influencing the entire asphalt industry.
“Plant operators and contractors are embracing a technology that reduces costs, uses less fuel, lowers temperatures, allows the use of more RAP and reduces emissions,” says Roger Sandberg of Maxam Equipment, Inc. He adds that plant operators are looking at costs and cost reduction closer than ever.
Mixing plant manufacturers are promoting equipment that fits this trend toward warm mix, recycling, cost reduction and environmental concerns. Following are some of the producers of this equipment and their products. ...
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A look at new asphalt construction equipment
By Dwight Walker, P.E.
In our current tough economic times, both contractors and government agencies are aware of the importance of quality construction to pavement performance. They are looking for construction equipment which makes it easier to build smoother, better-compacted pavements in an efficient manner.
Paving contractors are looking for in-process information as the paving is still taking place. They are working to produce longer lasting pavements, take advantage of bonus payment provisions and avoid deductions. They need high production equipment that minimizes traffic disruption and holds their production costs down.
Agencies and owners are utilizing innovative equipment and some agencies are actually specifying the use of Intelligent Compaction (IC) equipment. For more information on the latest in intelligent compaction, see page 22. The information listed below is intended to provide an update on some of the new asphalt construction equipment available. ...
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FP2 Inc. debuts new website and logo
FP2 Inc., formerly the Foundation for Pavement Preservation, has unveiled a new logo and innovative new website: www.FP2.org. The site creates an informative experience for the user and focuses on the impact the Foundation has made in the pavement preservation industry by supporting contractors, material suppliers and equipment manufacturers.
“The new site hits the mark in delivering the FP2 message,” according to Jim Moulthrop, Executive Director of FP2 Inc. “Our goal was to create a site that stresses the importance of pavement preservation, why it matters and how FP2 Inc. supports members and the industry every step of the way. As well, the new logo offers a contemporary visual that will become a recognizable symbol of effective pavement preservation.”
The FP2.org site centers on four major areas – advocacy, research, promotion and activities – providing users essential tools necessary to highlight the importance of pavement preservation for the nation's $1.75 trillion highway system. The site also features specific areas for FP2 Inc. ...
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International Conference on Pavement Preservation
The first International Conference on Pavement Preservation (ICPP) will be held during the week of April 13-15, 2010, in Newport Beach, CA at the Radisson Hotel.
The ICPP will bring together researchers and experts working in the field of pavement preservation to exchange ideas and discuss critical issues and concerns. This will be an event for anyone in the pavement preservation field.
For more info...
Racing and auto professionals share their ‘favorite roads’
A number of racing and auto professionals have logged on to the new Web site FavoriteRoad.com to share their favorite stretches of asphalt.
American LeMans Series founder/owner Dr. Don Panoz, customizer extraordinaire Johan Raganarasson and American LeMans racing champ Johnny O’Connell (shown) all shared their passion for driving by singling out their favorite road.
Panoz chose a portion of highway in West Virginia. Ragnarasson wrote about a strip of road in his native Sweden. No surprise - O’Connell picked a street in Connecticut with twists, turns and elevation changes.
You can read their entries and view other favorite roads from around the world on www.favoriteroad.com. If you submit your own 'favorite road' you could win a leather jacket.
Sponsored by Asphalt magazine, the new Web site is an online community designed for you to share photos and stories of your favorite roads.
www.favoriteroad.com
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