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Guided wave approach for concrete pavement thickness estimation

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Author

  • John S. Popovics
  • Nils Rydén
  • Alexander Gibson
  • Michael Haas

Summary, in English

The basis of a new non-destructive method for concrete pavements is described. The method uses a hybrid approach that combines frequency domain (impact-echo) and time domain (seismic) data. The equipment and data interpretation for the hybrid approach are described. The dynamic response data are interpreted in terms of guided plate wave (Lamb wave) theory, which are shown to follow the S, Lamb mode behavior. The developed field testing procedure is then described. Results from verification tests, carried out on full-scale concrete slabs, show that the new method provides accurate thickness estimates. On average the error between predicted thickness and actual thickness determined by cores is less than 6mm, although some individual estimates exceed this error value.

Publishing year

2007

Language

English

Pages

1345-1352

Publication/Series

Review of Progress in Quantitative Nondestructive Evaluation, Vols 26A and 26B

Volume

894

Document type

Conference paper

Publisher

American Institute of Physics (AIP)

Topic

  • Geotechnical Engineering

Keywords

  • thickness
  • pavement
  • lamb waves
  • concrete
  • impact echo

Conference name

33rd Annual Review of Progress in Quantitative Nondestructive Evaluation

Conference date

2006-07-30 - 2006-08-04

Status

Published

ISBN/ISSN/Other

  • ISSN: 0094-243X
  • ISSN: 1551-7616