CRITICAL EVALUATION OF THE SUPERPAVE PERFORMANCE PREDICTION MODEL FOR PERMANENT DEFORMATION AND SUPPORTING THEORY

Superpave performance prediction models for permanent deformation were evaluated. Experimental design contained three unmodified asphalt binders, one Superpave level 1 mix design, and two aging procedures. Results of this study indicate that temperature, asphalt binder grade, and aging significantly affect mixture stiffness. The parameter m of the creep compliance equation which is used in the Superpave models as the slope of the permanent deformation equation is not reliable and should not be used to predict rutting. Pattern search method used to determine the Vermeer plastic properties failed to reach a solution in all cases. The parameter m and patter search failure in the Vermeer model are, in part, responsible for unreasonable predictions.

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  • Corporate Authors:

    American Society for Testing and Materials (ASTM)

    100 Barr Harbor Drive, P.O. Box C700
    West Conshohocken, PA  United States  19428-2957
  • Authors:
    • Zhang, X
    • Kriech, A J
    • Huber, G A
  • Publication Date: 1997-9

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 169-185
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00761248
  • Record Type: Publication
  • ISBN: 080312418X
  • Report/Paper Numbers: STP 1322
  • Files: TRIS
  • Created Date: Mar 25 1999 12:00AM