Asphalt Alternatives [PDF]
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Gayle King; Helen King
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What is the future of road-building materials? Researchers Gayle King and Helen King analyze current and future asphalt extenders, including RAP, crumb rubber, sulfur, vegetable oil, and bio-mass materials. A table summarizes these asphalt alternatives in terms of price, availability, and constraints.
7 pages/130 kB (January 2009)