PREDICTION OF SULPHUR-ASPHALT PAVEMENT PERFORMANCE WITH VESYS IIM

The utilization of sulphur in sulphur-asphalt pavements is receiving considerable attention for a variety of reasons. One reason is that sulphur is one material which is expected to be in ample supply in the foreseeable future. Because of its ability to function both as the aggregate as well as an integral part of the binder, sulphur has been used to upgrade locally available, poorly graded sands in sulphur-asphalt sand mixes and as a partial replacement for asphalt cement in conventional bituminous concrete pavement mixtures. Because of limited field experience with these pavements, the viscoelastic layered pavement analysis program VESYS IIM was used to predict their performance in a variety of climates and to compare this performance with that of conventional asphaltic concrete pavements placed in identical conditions. Material properties of the mix designs used in the analyses were all measured in the laboratory. The resulting predictions showed that sulphur asphalt pavements may be expected to have less rutting and maintain a higher serviceability index but to have a comparatively greater susceptibility to fatigue cracking than conventional asphaltic concrete pavements. /Author/

• Supplemental Notes:
  • Volume I of proceedings of 4th International Conference on Structural Design of Asphalt Pavements, Ann Arbor, Michigan, August 22-26, 1977.
• Corporate Authors:

  University of Michigan, Ann Arbor

  Department of Civil Engineering
  Ann Arbor, MI  United States  48109
• Authors:
  • Lytton, R L
  • Saylak, D
  • Pickett, D E
• Conference:
  • Volume I of proceedings of 4th International Conference on Structural Design of Asphalt Pavements, Ann Arbor, Michigan, August 22-26, 1977.
• Publication Date: 1977-1

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 855-861

Subject/Index Terms

• TRT Terms: Aggregates; Asphalt pavements; Binders; Bituminous mixtures; Computer programs; Forecasting; Mix design; Pavement performance; Ruts (Pavements); Serviceability; Sulfur; Upgrades (Roads); Viscoelasticity
• Uncontrolled Terms: Rut; Serviceability Index
• Old TRIS Terms: Upgrade
• Subject Areas: Design; Geotechnology; Highways; Pavements;

Filing Info

• Accession Number: 00170253
• Record Type: Publication
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Mar 29 1978 12:00AM