EXPERIMENT DESIGN APPROACH TO NONDESTRUCTIVE TESTING OF PAVEMENTS

Nondestructive testing, complemented by a limited amount of destructive testing, is a widely accepted procedure for the evluation of the structural capacity of pavements. Numerous computer programs are available for backcalcualting moduli using deflection basins obtained from NDT. However, all programs fail to produce acceptable results when backcalculating. This paper presents an analysis of the backcalculation procedure to identify the conditions in which the program fails to produce reliable results. The paper also investigates the sources contributing to the material variability, and presents an experimental design analysis for backcalculating material moduli and their variances. A case study is described to illustrate the effect of the measuring device errors in the backcalculated moduli and to support the theoretical predictions.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/8674831
• Authors:
  • Uzan, J
  • Lytton, R L
• Publication Date: 1989-9

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 505-520
• Serial:
  • Journal of Transportation Engineering
  • Volume: 115
  • Issue Number: 5
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-947X
  • Serial URL: https://ascelibrary.org/journal/jtepbs

Subject/Index Terms

• TRT Terms: Computer programs; Errors; Evaluation; Modulus; Nondestructive tests; Pavement performance; Pavements
• Uncontrolled Terms: Experimental design
• Subject Areas: Highways; Pavements; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 00488390
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Sep 30 1989 12:00AM