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Proceedings Paper

Laboratory evaluation of concrete decks and pavements using ground-penetrating radar
Author(s): Udaya B. Halabe; Roger H. L. Chen; ManiKumar Allu; Lianfeng Pei
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Paper Abstract

This study presents the findings on the use of ground penetrating radar (GPR) to nondestructively assess the condition of bridge decks and pavements with and without asphalt overlay including the thickness effects. Several concrete bridge deck and pavement specimens with varying internal conditions such as with/without reinforcement and with/without delaminations were tested under laboratory conditions. In order to assess the effect of asphalt overlay on the detectability of subsurface delaminations, asphalt layers with thickness ranging from 1 inch to 3 inches were poured on the specimens and tested using GPR. The study also included specimens with debonding at the asphalt/concrete interface. Individual radar waveforms and color intensity plots from these specimens were compared to study the effect of anomalies on the radar waveforms.

Paper Details

Date Published: 13 November 1996
PDF: 6 pages
Proc. SPIE 2946, Nondestructive Evaluation of Bridges and Highways, (13 November 1996); doi: 10.1117/12.259135
Show Author Affiliations
Udaya B. Halabe, West Virginia Univ. (United States)
Roger H. L. Chen, West Virginia Univ. (United States)
ManiKumar Allu, West Virginia Univ. (United States)
Lianfeng Pei, West Virginia Univ. (United States)

Published in SPIE Proceedings Vol. 2946:
Nondestructive Evaluation of Bridges and Highways
Steven B. Chase, Editor(s)

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