Sulphur asphalt pavements: from experiment to full-scale viability

The use of sulfur in asphalt pavements has been the subject of considerable attention over the past ten years, largely due to energy costs, dwindling hydrocarbon resources and surplus sulfur accumulation considerations. Of the approaches available, sulfur- asphalt (SA) or sulfur extended asphalt (SEA), where up to 50 percent of the asphalt which would normally be used in a mix is replaced by sulfur, has received the most attention. Extensive research efforts and a large number of construction trials and projects have demonstrated the full- scale viability of SEA pavements. This paper provides a summary of much of the work conducted to date. The paper outlines the basic methods available for producing SEA mixes and compares their advantages and disadvantages. Full scale construction procedures and examples of field construction in various locations are presented. Structural design considerations for SEA pavements are provided and they demonstrate that because SEA mixtures have lower temperature susceptibility, they offer considerable design flexibility in meeting both high temperature and low-temperature requirements. This is supported by example analyses and documentation of materials properties, including resilient modulus, low- temperature stiffness, fatigue response and tensile strength. Finally, the potential economic advantages of SEA pavements are summarized.


  • English

Media Info

  • Pagination: 185-97
  • Monograph Title: Aggregate durability tests compared
  • Serial:
    • Volume: 10
    • Issue Number: 3

Subject/Index Terms

Filing Info

  • Accession Number: 01439175
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 24 2012 10:03PM