Sulfur-Asphalt Mixtures Using Poorly Graded Sands

by Don Saylak, Assoc. Research Engr.; Texas Transporation Inst., Texas A&M Univ., College Station, Tex.,
Haffizudin Ahmid, Research Asst.; Texas Transportation Inst., Texas A&M Univ., College Station, Tex.,
Jon A. Epps, (M.ASCE), Assoc. Research Engr.; Texas Transportation Inst., Texas A&M Univ., College Station, Tex.,
Bob M. Gallaway, Research Engr.; Texas Transportation Inst., Texas A&M Univ., College Station, Tex.,


Serial Information: Transportation Engineering Journal of ASCE, 1975, Vol. 101, Issue 1, Pg. 97-113


Document Type: Journal Paper

Abstract: Properties evaluated include uniaxial tensile stiffness, failure stress, and strain. The results of a series of third-point flexure tests are presented and compared with published fatigue data on conventional asphaltic concrete mixtures. A test method is presented by which volume changes incurred by the material during deformation can be related to the accumlation of stress-induced damage. This technique was used to evaluate the relative susceptibility to accumulate damage of sulfur-asphalt and a superior grade conventional asphalt concrete. These engineering properties were then incorporated into an equivalent pavement thickness analysis using elastic layered theory for sulfur-asphalt and asphaltic concrete mixtures under identical loading and subgrade conditions. The results indicate that sulfur-asphalt mixtures prepared with inexpensive, poorly-graded sands were shown to have properties at least equal to or better than a high-grade asphaltic concrete.

Subject Headings: Asphalt concrete | Mixtures | Sulfur | Stress strain relations | Fatigue tests | Asphalt pavements | Elastic analysis

Services: Buy this book/Buy this article

 

Return to search