Pavement Pumping Prediction Using Ground Penetrating Radar

In this paper the authors propose a novel inspection method based on Ground Penetrating Radar (GPR) techniques to predict pumping and reduce the risk on safety. Experimental layouts are developed to measure the clay content in sub-grade/sub-base compacted soils. Typical road material is analyzed using two different GPR systems: three types of soils are adequately compacted in electrically and hydraulically isolated boxes. Bentonite clay is gradually added from 2% to 25% by weight. Signals are analyzed in both time and frequency domains, and the reliability of results is respectively validated by the electromagnetic and the Rayleigh scattering theory showing promising correlations.

Language

  • English

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Filing Info

  • Accession Number: 01487585
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 27 2013 2:39PM