DISTRESS CHARACTERISTICS OF ASPHALT CONCRETE MIXES

This summary of information on the distress characteristics of asphalt concrete associated with certain of the modes, namely fracture and distortion, is limited to data which permits the estimate of performance to be made in terms of characteristics which are amenable to analysis e.g. stress and strain, or internal friction and cohesion. A summary of categories of distress for asphalt pavements are tabulated. Information reviewed here, particularly that pertaining to fracture, has been developed from tests in which the specimen is subjected to a semiaxial state of stress (e.g. the data on fatigue of asphalt concrete). Fatigue and fracture data together with an indication of their interrelationship through fracture mechanics principles are included. Fatigue data are also presented utilizing the Modified Goodman Diagram illustrating the response under fluctuating stresses superimposed on steady state stresses. Response to forms of compound stressing is described and data relating to the applicability of the distortion-energy theory to represent limiting conditions for a bixial state of stress are shown. Available information relating to the distortion mode of distress is outlined particularly the results of creep tests and triaxial compression tests to failure. The applicability of the distress characteristics to specific design situations is discussed; design recommendations are made and tabulated to match the sequence of distress types tabulated earlier.

  • Supplemental Notes:
    • Proceedings of the meeting held in Houston, Texas, February 1973.
  • Corporate Authors:

    University of Minnesota, Minneapolis

    155 Experimental Engineering Building
    Minneapolis, MN  USA  55455
  • Authors:
    • Monismith, C L
    • SALAM, Y M
  • Conference:
  • Publication Date: 1973

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 320-350
  • Serial:
    • Volume: 42

Subject/Index Terms

Filing Info

  • Accession Number: 00127334
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 16 1975 12:00AM