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Tag: warm-mix asphalt (WMA)

Roadbuilding
Geosynthetics of all types speed construction
Geosynthetics of all types speed construction, allowing bridges and highways to be built faster and enhance pavement performance.
May 7, 2014
On Arizona’s U.S. 89T emergency bypass construction in 2013, aggregate base is spread over triaxial geogrid above a graded base. The use of geogrid cut one-third of the cost of the aggregate base.
Roadbuilding
Special Report from TRB 2014: Warm Mix Asphalt
The incursion of warm-mix asphalt (WMA) into the nation’s bituminous pavements continues unabated.
March 7, 2014
Porous asphalt pavement is similar to open-graded friction courses (OGFC), with the same problem of drain-down, but is meant for static loads and environmentally sustainable stormwater drainage. Here, mix for the parade ground at U.S. Marine Corps Recruit Depot at Parris Island, S.C., contains warm-mix additive instead of fibers.
Roadbuilding
21st Century Asphalt Pavements Conference: Value, Quality, and Performance
The National Asphalt Pavement Association's "21st Century Asphalt Pavements Conference: Value, Quality, and Performance" will take place Dec. 5-6 at the Sheraton Salt Lake City Hotel in Salt Lake City, Utah.,The National Asphalt Pavement Association's "21st Century Asphalt Pavements Conference: Value, Quality, and Performance" will take place Dec. 5-6 at the Sheraton Salt Lake City Hotel in Salt Lake City, Utah.,The National Asphalt Pavement Association's "21st Century Asphalt Pavements Conference: Value, Quality, and Performance" will take place Dec. 5-6 at the Sheraton Salt Lake City Hotel in Salt Lake City, Utah.,The National Asphalt Pavement Association's "21st Century Asphalt Pavements Conference: Value, Quality, and Performance" will take place Dec. 5-6 at the Sheraton Salt Lake City Hotel in Salt Lake City, Utah.,The National Asphalt Pavement Association's "21st Century Asphalt Pavements Conference: Value, Quality, and Performance" will take place Dec. 5-6 at the Sheraton Salt Lake City Hotel in Salt Lake City, Utah.,The National Asphalt Pavement Association's "21st Century Asphalt Pavements Conference: Value, Quality, and Performance" will take place Dec. 5-6 at the Sheraton Salt Lake City Hotel in Salt Lake City, Utah.,The National Asphalt Pavement Association's "21st Century Asphalt Pavements Conference: Value, Quality, and Performance" will take place Dec. 5-6 at the Sheraton Salt Lake City Hotel in Salt Lake City, Utah.
October 2, 2012
Safety
Volvo CE offers Road Institute courses
Volvo Construction Equipment is offering courses during the 2012-2013 Road Institute. The course curriculum offers two- to five-day sessions beginning in October and continuing through May 2013, with classes held at two training facilities in North America. These facilities are located in Chambersburg, Pennsylvania, and Phoenix, Arizona. Road Institute focuses on the hot-mix asphalt (HMA) […]
August 16, 2012
Roadbuilding
Road Science
Low-energy asphalt mixes reduce viscosity — without the heat.
August 5, 2012
Click to enlarge
Roadbuilding
Road Science
What percentage of RAP is best? It depends.
November 13, 2011
Processed, ground reclaimed asphalt shingles await addition to asphalt mix near Waco, Tex., and are a low-volume adjunct to RAP.
Roadbuilding
Road Science
Nanotech era draws closer.
October 4, 2011
Nanoscale crystal seeds speed up concrete hardening. BASF’s X-Seed hardening accelerator makes additional heat superfluous and the concrete is particularly strong and durable. Magnification 960:1 (by 12 cm in width).
Roadbuilding
Highway Contractor
Technologies taking form under the watchful eyes of the National Asphalt Pavement Association and the Federal Highway Administration.
August 2, 2011
With warm-mix asphalt, “it’s important that we add the technology as part of the mix design,” says FHWA’s Mike Corrigan, “That way, we can identify where there potentially could be issues, especially where you have a high-traffic application such as an Interstate.”
Roadbuilding
Road Science: Thin is In
Thin lift hot-mix asphalt overlays are securing their place in the ‘pavement preservation toolbox’ touted by the Federal Highway Administration, the Foundation for Pavement Preservation, and other groups.
January 1, 2010
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