Concrete Pavement Layers Investigation with GPR in the BR-101 Highway

Authors

  • Matheus Rodrigues Cunha Universidade de Brasília, Campus Darcy Ribeiro, Instituto de Geociências, Programa de Pós-Graduação em Geociências Aplicadas e Geodinâmica, Campus Darcy Ribeiro, 70910-900, Brasília, Distrito Federal, Brasil
  • Welitom Rodrigues Borges Universidade de Brasília, Campus Darcy Ribeiro, Instituto de Geociências, Campus Darcy Ribeiro, 70910-900, Brasília, Distrito Federal, Brasil
  • Luciano Soares da Cunha Universidade de Brasília, Campus Darcy Ribeiro, Instituto de Geociências, Campus Darcy Ribeiro, 70910-900, Brasília, Distrito Federal, Brasil

DOI:

https://doi.org/10.11137/2019_1_308_316

Keywords:

GPR, Concrete pavement, BR-101

Abstract

In the construction project of a highway, some rules related to the materials and thicknesses of the layers must be followed to guarantee that the project is carried out properly. From denunciations accusing irregularities on the project of the highway BR-101, on Northeastern Brazil, we applied the Ground Penetrating Radar (GPR) method to investigate the depths of the base and subbase layers. It was used a 900 MHz shielded antenna, acquiring 45 km of data. The medium velocity was obtained indirectly through a hyperbolic fit and calibrated comparing it with the depth of a test trench. The results pointed out depth variations for both of the layers along the analyzed track, however the average depth only deviates from the original project for the base layer.

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Published

2019-12-01

Issue

Vol. 42 No. 1 (2019)

Section

Article

License

This journal is licensed under a Creative Commons — Attribution 4.0 International — CC BY 4.0, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.