United States Department of Transportation
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Sand-Asphalt-Sulfur Pavement Experimental Project, Highway U.S. 77, Kenedy County, Texas
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1977-04-01
[PDF-12.23 MB]
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Abstract:The use of sulfur as a means of upgrading poorly graded mineral aggregates for use in asphaltic concrete mixes has been under study by Shell Canada under the trade name of Thermopave for approximately fifteen years. Laboratory work has been extensive and numerous field trials have been completed in Canada. The Texas Transportation Institute under the co-sponsorship of The Sulphur Institute, and The Bureau of Mines instituted a program to introduce this concept to the United States. Following a 4-year laboratory effort a 3,000 lineal foot, sand-asphalt-sulfur experimental test section was placed along a portion of U.S. 77 in Kenedy County, Texas. This was the first demonstration of the Shell concept on a Federal Highway in this country.
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