SECOND GENERATION SULPHLEX BINDERS. FINAL REPORT

The work of Southwest Research Institute was reviewed and the most promising first generation Sulphlex binders produced in 25 gallon batches and tested for engineering mixture properties. Second generation Sulphlexes were developed with improved hot climate rutting resistance and cold climate fatigue resistance. To provide the necessary substantiating technology required for the preparation and quality assurance of plasticized sulfur binders, specifications for production and product purity were developed. Ninety-nine different Sulphlex formulations were produced and screened for chemical stability, physical properties and completeness of reaction. Of all the binders studied, four were selected which provide a wide range of acceptable behavior under specific climatic and loading conditions. Fracture mechanics was used extensively to evaluate low temperature fracture toughness and controlled displacement fatigue resistance. The use of fracture mechanics techniques coupled with the determination of glass transition temperature using the dilatometer and Differential Scanning Calorimetry (DSC) were indispensible tools in evaluating low temperature fracture potential. Five categories of second generation Sulphlexes were identified to be worthy of extended research: (1) low sulfur mixtures, and Sulphlex with the reactants, (2) p-vinyl toluene, (3) 1, 4, hexadiene, (4) internal olefins and (5) dicyclopentadiene oligomer.

• Corporate Authors:

  Texas Transportation Institute

  Texas A&M University System, 1600 E Lamar Boulevard
  Arlington, TX  United States  76011

  Federal Highway Administration

  Engineering Research and Development Bureau, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Little, D N
  • Haxo, H E
  • Saylak, D
• Publication Date: 1986-1

Media Info

• Pagination: 285 p.

Subject/Index Terms

• TRT Terms: Binders; Fatigue strength; Fracture mechanics; Plasticizers; Properties of materials; Ruts (Pavements); Specifications; Sulfur
• Uncontrolled Terms: Rut
• Old TRIS Terms: Plasticized sulfur; Purity; Resistance
• Subject Areas: Geotechnology; Highways; Materials; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00461797
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: FHWA/RD-86/016
• Contract Numbers: DOT-FH-61-81-C-00080
• Files: TRIS, USDOT
• Created Date: Jan 31 1987 12:00AM