SAND-ASPHALT-SULPHUR SURFACING

A sand-asphalt-sulphur (S-A-S) pavement in which no coarse aggregate was used and the fine aggregate was a blend of local and well-graded manufactured sand was investigated. In this project, sulphur was introduced to the mixture after the sand and the asphalt were mixed in the pugmill. Molten sulphur fills the voids in the asphalt-coated sand mixture and as the mixture cools, the sulphur solidifies, providing an interlocking structural effect in the pavement. Unlike previous experimental sulphur-asphalt mixes, this pavement was not rolled after it was placed. The purpose and location of the project is briefly described, as well as the material, equipment and process. It is concluded that the S-A-S pavement appear to be a viable alternative to regular asphalt pavements. No prohibitive problems were encountered with the hydrogen sulphide gas nor with the mechanical processes involved with using sulphur.

  • Corporate Authors:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Veith, P J
  • Publication Date: 1979-1

Media Info

  • Features: Photos;
  • Pagination: p. 50-57
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00301914
  • Record Type: Publication
  • Files: TRIS, USDOT
  • Created Date: Mar 31 1980 12:00AM