LABORATORY DEVELOPMENT OF THIRD/FOURTH GENERATION SULPHLEX BINDERS

This report presents the findings of a 2-year, multitask study to provide a new generation of Sulphlex binders with enhanced low-temperature fracture resistance. The initial phases of the program dealt with the preparation and base-line characterization of Sulphlex 233 and 198, First and Second Generation Sulphlex, respectively, considered the more promising of a broad series of formulations developed under earlier Federal Highway Administration programs. These binders were prepared individually and blended at ratios of 50/50 and 75/25 (198/233) and designated as Third Generation Sulphlex. The former was prepared by directly blending the two binders as well as by a one-pot synthesis. These binders were subjected to a series of screening tests including (a) Penetration @ 25 deg C, (b) Viscosity @ 135 deg C, (c) Specific Gravity, (d) Solubility in CHCl3, (e) Storage Stability, and (f) Glass Transition temperature. A "new and improved" Sulphlex binder designated as Fourth Generation was formulated utilizing the rationale derived from the earlier systems. Sulphlex mixtures along with a control using an AC-20 asphalt were prepared using a crushed limestone aggregate and tested in accordance with Asphalt Aggregate Mixture Analysis System (AAMAS), American Association of State Highway and Transportation Officials (AASHTO), Strategic Highway Research Program (SHRP or Superpave), and Viscoelastic Systems (VESYS) procedures including (a) Indirect Tension, (b) Diametral Resilient Modulus, (c) IDT Creep, (d) Compressive Creep, (e) Unconfined Compression, (f) Repeated Load Permanent Deformation, and (g) Aging using Resilient Modulus. A set of generic manufacturing plans and procedures were generated for the production of Sulphlex in sufficient quantity to satisfy the requirements of an hypothetical test road section.

• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/68196
• Supplemental Notes:
  • See also FHWA/RD-85/032 (TRIS 00461792); FHWA/RD-85/033 (TRIS 00461858); FHWA/RD-86/016 (TRIS 00461797); and FHWA/RD-86/149 (TRIS 00461930).
• Corporate Authors:

  Texas Transportation Institute

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

  Texas Department of Transportation

  Research and Technology Transfer Office, P.O. Box 5051
  Austin, TX  United States  78763-5051

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Saylak, D
  • Little, D N
  • Menon, V N
• Publication Date: 1997-7

Language

• English

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 211 p.

Subject/Index Terms

• TRT Terms: Accelerated tests; Binders; Creep tests; Crushed limestone; Deformation; Fracture properties; Glass; Handling and storage; Low temperature; Material aging; Measurement; Mechanical stability; Modulus of resilience; Paving materials; Plasticizers; Repeated loads; Soil penetration test; Solubility; Specific gravity; Sulfur; Tension tests; Viscosity
• Uncontrolled Terms: Fracture resistance; Glass transition temperature; Indirect tensile test; Storage stability
• Old TRIS Terms: Deformation analysis; Paving mixtures; Plasticized sulfur; Specific gravity tests; Unconfined compression tests; Viscosity test
• Subject Areas: Freight Transportation; Geotechnology; Highways; Materials; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00745822
• Record Type: Publication
• Report/Paper Numbers: FHWA-RD-94-121,, Res Rept 7208, 3E1-0102,, Final Report
• Contract Numbers: Study 7208
• Files: NTL, TRIS, ATRI, USDOT, STATEDOT
• Created Date: Feb 27 1998 12:00AM