THE EFFECT OF SUBLAYER SUPPORT ON THE ATTAINMENT OF DENSITY IN AN ASPHALT CONCRETE OVERLAY, STATE OF THE ART. FINAL REPORT

A considerable number of asphalt concrete overlays do not attain specified density requirements during construction. Although density is a function of many variables such as mix characteristics, climate, contractor equipment and operation, and acceptance test methods, a significant variable may be the ability of the existing pavement section to provide adequate support for the densification of the overlay. A literature review was performed as well as a survey of 25 selected states in order to determine the magnitude of the problem and to assimilate all available data on the subject. A conclusion is the density of properly designed and constructed asphalt concrete overlays is only marginally affected by the sublayer support. A suggested plan for future research is presented to further quantify the effect of sublayer support.

  • Corporate Authors:

    Scherocman (JA)

    11205 Brookbridge Drive
    Cincinnati, OH  United States  45249

    Arizona Department of Transportation

    206 South 17th Avenue
    Phoenix, AZ  United States  85007

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Scherocman, J A
  • Publication Date: 1987-5

Media Info

  • Pagination: 109 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00619191
  • Record Type: Publication
  • Report/Paper Numbers: FHWA/AZ-86/803
  • Contract Numbers: PL-1(31)803
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Feb 29 1992 12:00AM