ASPHALT CONCRETE PROPERTIES AND PERFORMANCE IN ALASKA. EXECUTIVE SUMMARY

A major study of asphalt concrete properties and performance of Alaska's highways was completed in 1982. The project data base was obtained from 117 statewide pavement sections through numerous core samples and measurements of cracking, patching and rutting. Primary research objectives were to: 1) provide an idea of the in-service composition of asphalt concrete, and 2) determine composition variations which produce the best performance. Because of the apparent rapidity of asphalt age hardening, performance relationships were derived using aged properties. Results indicate that best long-term performance is obtained from asphaltic materials which retain softness and relatively low tensile strengths throughout the pavement's service life. Aged materials specifications are presented which have provided optimum performance.

• Record URL:
  • http://www.dot.state.ak.us/stwddes/research/assets/pdf/ak_rd_82_02a.pdf
• 
• Corporate Authors:

  Alaska Department of Transportation and Public Facilities

  2301 Peger Road
  Fairbanks, AK  United States  99701

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • McHattie, R L
• Publication Date: 1982

Media Info

• Pagination: 15 p.

Subject/Index Terms

• TRT Terms: Asphalt cement; Asphalt concrete; Core samples; Materials selection; Pavement cracking; Pavement performance; Pavement ruts; Physical properties; Specifications; Tensile strength; Time duration
• Uncontrolled Terms: Long term; Rut
• Old TRIS Terms: Aging; Cores
• Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00488123
• Record Type: Publication
• Source Agency: Alaska Department of Transportation and Public Facilities
• Report/Paper Numbers: FHWA-AK-RD-82-02A
• Contract Numbers: F16162
• Files: TRIS, USDOT, STATEDOT
• Created Date: Sep 30 1989 12:00AM