PATCHING A ROAD WITH SULPHUR

An experiment was conducted in Boulder City, Nevada using sulfur-asphalt-sand mixture to patch a damaged asphalt pavement. Fine blow sand was used in one instance and medium construction sand in another, with mix compositions as follows: (A) asphalt - 6 wt%, sulfur - 17 wt%, and fine sand - 77 wt%; and (B) asphalt - 6 wt%, sulfur - 13.5 wt%, and construction sand - 80.5 wt%. The mixture was shoveled in, smoothed by hoeing and raking to approximate grade, compacted by tamping once with a preheated tamper, and then levelled. After cooling for 6 hours, the road was reopened to traffic. After one year the pavement remains in excellent condition. Another patching experiment with the sulfur-asphalt-sand mixture was conducted in June 1975. A much harder grade of asphalt, AR-8000 grade, was substituted for the AR-2000 grade used in the previous trial. Essentially the same technique as previously was used in placing the patching mixture, except that less compacting was done prior to the levelling. Again the road was reopened to traffic after 6 hours. The performance of these patches is still being observed.

  • Corporate Authors:

    Sulphur Institute

    1725 K Street, NW
    Washington, DC  USA  20006
  • Publication Date: 1975-6

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00127510
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 14 1976 12:00AM