Use of GPR for thickness measurement and quality control of flexible pavements

Imad L. Al-Qadi, Samer Lahouar

Research output: Contribution to journalConference articlepeer-review


The performance of ground penetrating radar (GPR) in estimating the layer thicknesses of flexible pavements was evaluated. The data analysis was facilitated by a complete knowledge of the different structures and compositions of the various sections of the road, and by copper plates that were embedded at the different layer interfaces during the construction of the pavement. It was found that current GPR analysis approach fails to detect layer interfaces in some circumstances because of physical limitations. It was also found that for in-service pavements or pavements composed of multiple thin layers, special data analysis techniques should be applied to achieve reasonable thickness accuracy.

Original languageEnglish (US)
Pages (from-to)501-528
Number of pages28
JournalAsphalt Paving Technology: Association of Asphalt Paving Technologists-Proceedings of the Technical Sessions
StatePublished - 2004
Externally publishedYes
EventAsphalt Paving Technology 2004 - Baton Rouge, LA, United States
Duration: Mar 8 2004Mar 10 2004


  • Flexible Pavement
  • GPR
  • Thickness Measurements

ASJC Scopus subject areas

  • Civil and Structural Engineering


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