Hundreds of Falling Weight Deflectometer (FWD) tests were conducted to characterize the material properties of the Texas Mobile Load Simulator (TxMLS) test pad under accelerated trafficking. Cores were obtained to verify pavement thickness and to determine material properties in the laboratory. In addition, FWD tests were performed on an instrumented pavement section, and pressure cell and Multi-Depth Deflectometer (MDD) data were simultaneously collected. Structural analysis of the pavement was performed by examining results from numerous sets of layer moduli. FWD deflections were used to determine layer moduli through backcalculation. Theoretical stress and strain were then computed using multi-layered elasticity based programs. The theoretical stress and strain were then compared to the measured pressure and strain. Furthermore, pavement life was computed using distress models suggested by the Asphalt Institute and then compared with the actual termination life determined in the field. The findings are presented in the paper.

  • Supplemental Notes:
    • This conference was arranged by the International Society for Asphalt Pavements. The ninth conference will be held in Copenhagen, Denmark in August 2002.
  • Corporate Authors:

    University of Washington, Seattle

    Department of Civil and Environmental Engineering, P.O. Box 352700
    Seattle, WA  United States  98195-2700
  • Authors:
    • Chen, D-H
    • Murphy, M
    • Pilson, C
    • Hudson, R
  • Conference:
  • Publication Date: 1997


  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 1205-23

Subject/Index Terms

Filing Info

  • Accession Number: 00764719
  • Record Type: Publication
  • Report/Paper Numbers: Volume II
  • Files: TRIS
  • Created Date: Jun 15 1999 12:00AM