WHY DOES ASPHALT CRACK? "GLASS TRANSITION" MAY BE ONE REASON

Under high pressures (and the resulting increase in viscosity), asphalts undergo change at high ambient temperatures called glass transition temperatures. Repeated traffic loads coupled with temperature stresses can result in shattering the thin asphalt films which bind the pavement. Moisture soon enters causing additional deterioration. The failure mechanism stemming from the combined effects of heavy loads and low temperature is briefly outlined. Data are presented that indicate that fracturing of the asphalt films in a bituminous pavement can occur at ambient temperatures commonly considered cool but not cold. Asphalts from different sources and composition, have different sensitivities to the simultaneous action of low temperatures and high pressures.

  • Corporate Authors:

    Dun Donnelley Publishing Corporation

    222 South Riverside Plaza
    Chicago, IL  USA  60606
  • Authors:
    • Traxler, R N
    • Layman, A H
  • Publication Date: 1975-9

Media Info

  • Features: Tables;
  • Pagination: p. 92-94
  • Serial:
    • Roads and Streets
    • Volume: 118
    • Issue Number: 9
    • Publisher: Donnelley (Reuben H) Corporation

Subject/Index Terms

Filing Info

  • Accession Number: 00135037
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 11 1976 12:00AM