Asphalt in the U.S. Transportation Infrastructureby Robert E. Boyer, Asphalt Inst, United States,
Abstract: Asphalt has been the major pavement material responsible for development of the transportation infrastructure enjoyed by American citizens. This paper addresses issues to be monitored over the next decade. First, supply and demand for asphalt will grow at a constant rate in pace with funding to maintain 93 per-cent of the nation's roadway surfaces. Secondly, intense efforts are being initiated to insure quality assurance/quality control over proper construction to obtain longer pavement life. Basic asphalt technological research program and funding mechanisms are being enhanced through federal agency support. Lastly, some environmental concerns dealing with possible air and water contamination are under close scrutiny by industry.
Subject Headings: Infrastructure | Construction materials | Asphalt pavements | Highways and roads | Air quality | Water quality | Quality control | North America | United States
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