A method of predicting permanent deformation characteristics of asphalt concrete under repetitive loading is described. In this mehtod, a relatively small number of creep tests are needed for the characterization of the constritutive equation for predicting permanent strains. The approach outlined here is applicable to a rich-mix asphalt concrete. For asphalt concrete with a low asphalt content, the total permanent strain due to repeated loading cannot be considered as due solely to viscous flow, and an equation is presented which would give an accurate prediction of deformation: irrecoverable strain = A (delta + N) sup alpha + gamma (N) sup xi. N=total number of repetitions. Three of the 4 coefficients in equation (A, alpha, gamma) can be determined from the creep and recovery test results, and the fourth coefficient, xi, can be determined from a repetitive loading test.

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 41-43
  • Monograph Title: Soil mechanics: rutting in asphalt pavements, embankments on varved clays and foundations
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00162996
  • Record Type: Publication
  • ISBN: 0309025958
  • Files: TRIS, TRB
  • Created Date: Oct 13 1977 12:00AM