Anatomy of Asphaltby John Prendergast, Assoc. Editor;
Serial Information: Civil Engineering—ASCE, 1991, Vol. 61, Issue 7, Pg. 56-59
Document Type: Feature article
Two main factors will combine over the next several years to alter the composition of asphalt pavements, which make up more than 90% of the paved roads in the U.S. First, a major research effort is under way to come up with new pavements better able to withstand the strains of increasing traffic volumes, tire pressures and truck weights. Techniques developed in the U.S. through the Strategic Highway Research Program or adopted from Europe could produce a whole range of new mix designs and additives. At the same time, road construction has become a major focus among states seeking ways to recycle solid-waste materials. Future asphalt roads may contain rubber, glass, fly ash, and even roofing shingles and old toilet bowls.
Subject Headings: Highways and roads | Highway and road design | Recycling | Construction materials | Asphalt pavements | Vehicle-pavement interaction | Strain | Traffic volume | Europe
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