EVALUATING THE EFFECTIVENESS OF LIQUID ANTI-STRIPPING ADDITIVES IN ASPHALT CEMENT. FINAL REPORT

The use of liquid anti-stripping additives (LAA) for reducing moisture damage in asphalt concrete pavements was evaluated using pavement cores from pairs of projects with and without LAA. Results were analyzed using the wet/dry tensile strength ratio (TSR). In addition, a diazo-dye for determining the presence and concentration of polyamine LAA was attempted to assess the value of the test as a field procedure. The chemical additive detection tests proved inclusive, but the TSR analysis gave a positive indication of the need for the use of LAA in the wetter environments of the state. For drier environments and for low traffic volumes, use of LAA may not be cost effective. The indirect tensile test was judged to be a potentially valuable tool for statewide use in the evaluation of anti-stripping additive needs.

• Record URL:
  • http://www.wsdot.wa.gov/research/reports/fullreports/085.1.pdf
• 
• Corporate Authors:

  Washington State Department of Transportation

  Transportation Building, 310 Maple Park Avenue SE, P.O. Box 47300
  Olympia, WA  United States  98504-7300

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Malsch, D A
• Publication Date: 1986-6

Media Info

• Pagination: 79 p.

Subject/Index Terms

• TRT Terms: Antistrip additives; Asphalt concrete; Cost effectiveness; Evaluation; Loss and damage; Measures of effectiveness; Moisture content; Tensile strength; Tension tests
• Uncontrolled Terms: Effectiveness; Indirect tensile test
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00462282
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: WA-RD-85.1
• Contract Numbers: HR0613
• Files: TRIS, USDOT, STATEDOT
• Created Date: Feb 28 1987 12:00AM