Sulphur Extended Asphalt Field Trials - MH 153 Brazos County, Texas: Final Report
Author(s):
F.C. Benson, B.M. Gallaway
Publication Date:
November 1982
Abstract:
In June, 1978 FCIP Study No. l-10-78-536 was initiated in which six 450-foot (137-m) trial sections of six-inch (152-mm) depth sulphur extended asphalt (SEA) binder stabilized base were constructed on the two southbound lanes of MH (Municipal Highway) 153 in the cities of Bryan and College Station, Texas. The control section was built with a Texas State Department of Highways and Public Transportation Item 292 conventional asphalt cement stabilized base, which was also used on the bulk of the project. Two different SEA binders were utilized, a 30/70 and a 40/60 binder. Three different aggregate gradations were employed, using blends of rounded siliceous materials consisting of bank run river gravel, pea gravel, concrete sand and field sand. Since these blends of materials produced gap gradations, the aggregates used were considered to be “marginal.” This report describes the significant points concerning the design, construction and all the subsequent laboratory testing and field evaluations of the MH 153 SEA trial and control sections that have occurred from June, 1978 to December, 1981. The final part of the report discusses the four objectives of the study concerning the uses of SEA binders and marginal aggregates and how well these objectives were met based on the laboratory and field testing results.
Report Number:
536-7
Electronic Link(s):
Document/Product
https://library.ctr.utexas.edu/digitized/texasarchive/phase4/536-7.pdf
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