NDE methods for quality assurance of new pavement thickness

K. R. Maser, T. J. Holland, R. Roberts, J. Popovics

Research output: Contribution to journalArticlepeer-review


Accurate measurement of pavement thickness is an essential aspect of the quality assurance of new pavement construction. Current coring methods are time consuming and provide a very limited representation of the overall pavement structure. The objective of the work described in this paper has been to demonstrate the use of non-destructive evaluation (NDE) methods for rapidly determining the average pavement thickness on a newly constructed section to within 2.5 mm of the true value, without extensive reliance on cores. The effort has considered ground penetrating radar (GPR) and impact echo methods applied to both asphalt and concrete pavement, and has included laboratory and field-testing, with field correlations based on 172 cores. The results show that the 2.5 mm accuracy objective can be met for asphalt pavement, but that accuracy on concrete is limited to 4 mm. The paper describes the techniques that were evaluated, the testing that was conducted, and the results of correlation with core data.

Original languageEnglish (US)
Pages (from-to)1-10
Number of pages10
JournalInternational Journal of Pavement Engineering
Issue number1
StatePublished - Mar 2006


  • Ground penetrating radar (GPR)
  • Impact-echo
  • Non-destructive evaluation
  • Pavement construction
  • Pavement thickness
  • Quality assurance

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials


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