NONDESTRUCTIVE STRUCTURAL EVALUATION OF PAVEMENTS. FINAL REPORT. VOLUME I

The objective of this research program was to develop a comprehensive methodology for evaluation of a flexible pavement system using a Falling Weight Deflectometer (FWD). This objective was approached through extensive field deflection and laboratory testing of the selected pavement sections. Six pavement sections throughout the State of North Carolina were selected for this study. Two rounds of field deflection measurements were made using the FWD. Furthermore, materials from pavement sections were collected for laboratory testing. VESYS, a viscoelastic structural subsystem, was used to develop algorithms and nomographs for deflection basin interpretation. VESYS and three other methods (ELMOD, OAF, and MODCOMP2) were used to backcalculate in-situ pavement layer properties from deflection data.

  • Supplemental Notes:
    • See also Volume II - User's Manual.
  • Corporate Authors:

    North Caroline State University

    Department of Civil Engineering
    Raleigh, NC  United States  27695-7908

    North Carolina Department of Transportation

    Division of Highways, P.O. Box 25201
    Raleigh, NC  United States  27611

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Khosla, N P
  • Publication Date: 1986-6

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 316 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00610107
  • Record Type: Publication
  • Report/Paper Numbers: FHWA/NC-89/010
  • Contract Numbers: 23241-85-2
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Jun 30 1991 12:00AM