Defect Detection in Concrete Bridge Decks Using Radar
Is Version Of
Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
This paper summarizes the findings of a study on the use of Ground Penetrating Radar (GPR) for nondestructive evaluation of concrete bridge decks. GPR has been found to be a proven technique for condition assessment of bridge decks . However, most GPR studies have involved testing in the field, where the conditions are complex . The objective of the present study is to assess the effect of isolated anomalies on the radar waveforms and determine the capabilities and limitations of the GPR technique under controlled laboratory conditions. Also, a radar data analysis model previously developed by Halabe et al.  was further improved, and its accuracy of prediction was compared to the actual conditions existing in the laboratory specimens.