EVALUATION OF BASE COURSES FOR FLEXIBLE PAVEMENTS

Nineteen pavement sections monitored over a period of approximately ten years have been evaluated to determine the influence of base course parameters on the performance of primary flexible pavement systems in Piedmont, North Carolina. The research relied essentially on the Present Serviceability Rating concept as a measure of performance. The findings of the research indicates roughness measures are insensitive to changes in subjective performance, present design procedures are adequate and probably conservative, at least, for the pavements studied. Bituminous concrete base courses are not necessarily structurally superior to coarse aggregate base courses, and Benkleman beam deflections are poor indicators of performance.

  • Supplemental Notes:
    • Prepared in cooperation with North Carolina Dept. of Transportation, Raleigh. See also Aug 70, PB-197 162.
  • Corporate Authors:

    North Carolina State University, Raleigh

    Raleigh, NC  United States  27695

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Mullen, W G
    • Barnes, B D
  • Publication Date: 1981-2

Media Info

  • Pagination: 100 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00343573
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: ERSD-110-67-5, FHWA/NC-81/002
  • Files: NTIS, USDOT
  • Created Date: Oct 28 2002 12:00AM