Paving the road to success
Roads & Bridges
May 2008
By Tara Vantimmeren
Paving specialist overcomes obstacles, yields strong rewards
Roads 4 show
Roads & Bridges
May 2008
By Allen Zeyher
Hayes finalists Hayes finalists win bonuses for smoothness, volumetrics
Beer garden
Roads & Bridges
March 2008
By John Bartoszek, P.E.
The city of hops drives home need to be environmentally conscious
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Think like a knife
Asphalt Today 2006
February 2008
By Eric Morse
Industry should follow example of contractor in Nebraska
Jersey becomes uniform
Asphalt Today 2006
February 2008
By Rodney Garrett
State makes a commitment to smoothness on all road projects
International flight
Roads & Bridges
September 2007
By Ray Brown
SMA is starting to take off as an airfield pavement in Europe; U.S. may soon follow suit
Strong Makeup
Roads & Bridges
October 2005
Richard Holmes, president of Holmes & Murphy
“The mix cools quickly and is difficult for the crews to hand work. We also found that we achieved better joint densities if we didn’t let the joint cool.”
Here comes the knuckler
Roads & Bridges
June 2005
Bill Wilson
In general metropolitan pavement hasn’t received enough attention. According to the latest urban pavement condition study by TRIP, approximately one in four miles of the nation’s metropolitan arteries are in substandard condition.
Break it up
Roads & Bridges
May 2005
—Edited by Allen Zeyher and Stephanie Harris
Some individuals in Texas initially thought RCA would be a substandard material, but the Texas DOT learned that, with improved process control, RCA can be used in new concrete. The Texas DOT’s experience with production, construction and cost of RCA is related in the FHWA report.
What follows are brief descriptions of a few of the latest products for doing demolition work and recycling and reclaiming roads.
Ready with cold remedies
Roads & Bridges
May 2005
Rodney Garrett
there are contractors specializing in cold (pavement) planning who collectively perform this service nationwide. Nevertheless, as with any other special services contractors, their workmanship quality, services and expertise can vary.
Cleared for takeoff
Roads & Bridges
February 2005
Rick Zettler, Contributing Author
“We are not afraid of new technology,” said Richard Holmes, president of Holmes & Murphy. “By having the right machine for the right job, we give ourselves the opportunity to succeed.”
Serious RPM (Race Paving Miles)
Roads & Bridges
September 2004
April Goodwin, Contributing Author
… little did they know the German-made paver would assist them with several racetrack, runway and highway paving jobs in the years to come.
Another Case Cracked
Roads & Bridges
September 2004
Allen Zeyher, Associate Editor
Finally, about a 20-mile segment of I-70 in eastern Illinois had too much deep, age-related damage to be repaired; it had to be reconstructed.
A Dry Run
Roads & Bridges
September 2004
“We had a 15-day window during the August dry season to complete the entire project…"
States achieve recycling success
Roads & Bridges
July 2004
By Jason Harrington
Similar to Minnesota’s experiences, MDOT has found that RCA used in base and sub-base material can provide performance comparable to or better than using virign aggregate.
Positive Energy
Roads & Bridges
April 2004
Bill Wilson, Editor
The National Asphalt Pavement Association honor is considered to be the most prestigious in the asphalt pavement industry. The winner is determined through a two-year process.
It's Electric
Roads & Bridges
February 2004
Rick Zettler
Although the market principal for decades, considerable drawbacks to diesel-fuel screeds, including operator comfort and maintenance issues, have opened the door for an electrically heated screed alternative.
A Hot Wintry Mix
Roads & Bridges
February 2004
Jack Donovan
Contributing Author
Bechtel/Parsons Brinckerhoff, as the management consultant for the Massachusetts Turnpike Authority on Boston's Central Artery/Tunnel project, prepared a cold-weather paving procedure that required the paving subcontractor and the asphalt supplier to meet minimum asphalt temperatures at various points between batching and placement.
Life Guard
Roads & Bridges
February 2004
Carl L. Monismith and Jim St. Martin
In 1998, in response to this situation, the California Department of Transportation (Caltrans) embarked on a Long-Life Pavement Rehabilitation Strategies (LLPRS) program to rebuild approximately 2,800 lane-km of deteriorated freeways.
Just Following Policy!
Roads & Bridges
October 2003
Foamed asphalt lets Ulster County, N.Y., keep its roads open to local and tourist traffic while they undergo complete recycling and stabilization as base material prior to overlay.
Scoring at Home
Roads & Bridges
January 2003
E. Ray Brown, Ph.D.
The first two-year cycle of tests at the National Center for Asphalt Technology (NCAT) Test Track, Auburn, Ala., was completed recently. The results of this first series of tests were presented at the National Transportation Symposium at NCAT held on Nov. 13-14, 2002. Here are some of the findings.
Strongly recommended
Roads & Bridges
January 2003
Bill Wilson, Editor
When the Ohio Department of Transportation worked out designs for the expansion of a 2.3-mile stretch of I-77, it originally wanted a 131/4-in. asphalt pavement over an asphalt free-draining base and 6-in. aggregate base. Northstar Asphalt, however, believed more resilience was needed to cover a seven-year warranty, and convinced officials to go with the state's first section of perpetual pavement.
Feeding into smoothness
Roads & Bridges
January 2003
The way the feeder system is set up and operated has a major impact on a wide range of mat quality issues. Regardless of the mix type, the paving width or the paving depth, the feeder system must deliver material from the hopper to the auger chamber and across the screed in an uninterrupted, uniform manner. Consistency and doing the fundamental things right are the keys to good feeder system operation.
Rolling on the stones
Roads & Bridges
January 2003
Dave Newcomb, Contributing Author
matrix asphalt (SMA) is a strong surface for high-volume, heavy-duty roadways. Why the big interest? It's simple: * Improved performance, noise reduction, and
improved safety.
Segregation Buster
Roads & Bridges
August 2002
Bill Rieken
At every stage in handling aggregate and asphalt, there is a chance for material segregation to occur. With numerous opportunities for segregation to occur even before the asphalt reaches the jobsite, it does not seem quite fair that the paving crew is now challenged to lay a high-quality, smooth mat void of segregation. Fair or not, however, it is a fact of life.
Iowa’s playing field
Roads & Bridges
April 2002
Bill Wilson
During its 47th annual convention in San Francisco, the National Asphalt Pavement Association (NAPA) honored Norris’ flawless execution on a 61/2-mile stretch of Route P46 with the 2001 Sheldon G. Hayes Award. It marked the second time the gold medal of the asphalt paving industry went to an Iowa contractor.
Full cooperation
Roads & Bridges
April 2002
Margaret Cervarich
The Big I Reconstruction Project in Albuquerque, N.M., involves more than 2 million cu yd of dirt, 610,000 tons of hot-mix asphalt (HMA) and 165,000 cu yd of concrete. And all of it is being used to rebuild two interstate highways (I-25 and I-40) that happen to cross each other in the middle of a busy metropolitan area.
Foam on Bottom
Roads & Bridges
May 2001
Blair Barnhardt
States like Georgia find inexpensive base for asphalt rehab
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Superpave Super Projects
Roads & Bridges
January 1999
David Banasiak
Each year, the National Asphalt Pavement Association recognizes construction excellence through its paving awards programs; projects nominated stress smoothness while using Superpave mix design.
Superpave Goes to School
Roads & Bridges
June 1998
Five Indiana universities are incorporating the Superpave asphalt binder and mix design method into their curricula.
Quality Asphalt Paving: Easy as A + B
Roads & Bridges
May 1998
Larry Flynn
Oklahoma contractor and DOT are recognized for producing and placing the best asphalt pavement in the land; project marks first for state in use of A + B bidding and polymer modification.
Compacting for Superpave Success
Roads & Bridges
August 1997
James A. Scherocman, P.E.
A lot has been said about the Superpave binder specs and mix designs, but what about compaction of the mix once it's laid? Our two-part series addresses key issues.
New Developments to Aid Superpave
Roads & Bridges
May 1997
Gary Henderson
The Superpave system. We hear it mentioned at meetings, we read
about it in magazines and newsletters, and we discuss it in the
office. Yet what's the bottom line? Where are we right now in
the transition to this performance-based asphalt mix design
system?
Superpave Use Spreads in Iowa
Roads & Bridges
February 1997
Renee White
The first Superpave project in Iowa took place in Des Moines two years ago; since then more projects have followed.
Looks can be deceiving
Roads & Bridges
December 1996
Don Bradley
Texture imprinting system gives asphalt pavements the look of a brick-paved street
A Superpave Primer
Roads & Bridges
February 1996
While virtually everyone in the industry is familiar with the term "Superpave,"
there still appears to be some confusion over just what Superpave is.
How 'Super' is Superpave?
Roads & Bridges
February 1996
Lee Geistlinger
SHRP's Superpave is moving off test tracks and into the roads of Main Street USA. Here's a look at its performance there.
The Badger State Still on the Superpave Bandwagon
Roads & Bridges
February 1996
While the actual number of "Superpave miles" in Wisconsin's roadway
system is low-approximately 4 to 5 miles-it has made an impression that
greatly exceeds its physical presence.
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