Innovative Sulphur Technology Applied to European Asphalt Mixtures

This paper describes how sulfur-extended asphalt (SEA) was developed in the 1970’s and the 1980’s. At that time, there were recurrent problems with hot sulfur storage and pre-blending with the bitumen. In recent years, there has been renewed interest in sulfur as a result of product innovation and increasing hydrocarbon costs. Modified sulfur pellets, easily added during mixing, have been developed to obtain modified asphalt mixes. The concentration of the modified sulfur pellets in the mixture is designed to enhance asphalt mixture properties whilst maintaining workability and compactability. This paper describes the development of asphalt mixtures using this technology from the laboratory to manufacturing and paving projects. The performance of conventional asphalt base mixtures was compared with sulfur modified mixtures. The test results demonstrated that the asphalt mixtures containing the modified sulfur pellets were equivalent to, or showed improved performance compared to the conventional asphalt mixtures demonstrating its suitability for modern European pavements.

• Corporate Authors:

  Politecnico di Torino

  Turin,   Italy 
• Authors:
  • Bailey, H K
  • Allen, R
  • Strickland, D
  • Colange, J
  • Gilbert, K
• Conference:
  • Sixth International Conference on Maintenance and Rehabilitation of Pavements and Technological Control (MAIREPAV6)
  • Location: Turin , Italy
  • Date: 2009-7-8 to 2009-7-10
• Publication Date: 2009

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; Photos; References; Tables;
• Pagination: 10p
• Monograph Title: International Conference on Maintenance and Rehabilitation of Pavements and Technological Control (MAIREPAV6), Sixth Proceedings

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Blending; Hydrocarbons; Pavement performance; Sulfur; Sulfur asphalt; Technological innovations
• Geographic Terms: Europe
• Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01139013
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 31 2009 9:24AM