RIGID-PAVEMENT EVALUATION USING NDT - CASE STUDY

A two-step back calculation procedure is described to determine the appropriate pavement layer properties from field deflection measurements. In the first step, a factorial deflection data base is built using multiple runs of a theoretical model. In the second, a pattern search and interpolation scheme are used to match field-measured and theoretical deflection bowls. The output is the set of layer properties that minimizes the error between measured and computed deflections. This paper makes comparisons of the results from three different pavement models: 3-layer, Hogg, and Hertz-Westergaard; and performs calculations with deflections measured near a free edge and compares them with those made with deflections measured at the center of the slab.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/8674831
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Uzan, J
• Publication Date: 1992-7

Media Info

• Features: Appendices; References; Tables;
• Pagination: p. 527-539
• Serial:
  • Journal of Transportation Engineering
  • Volume: 118
  • Issue Number: 4
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-947X
  • Serial URL: https://ascelibrary.org/journal/jtepbs

Subject/Index Terms

• TRT Terms: Case studies; Deflection; Evaluation; Mathematical models; Nondestructive tests; Pavement performance; Pavements; Rigid pavements
• Uncontrolled Terms: Models
• Old TRIS Terms: Pavement deflection
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 00623687
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Jul 31 1992 12:00AM