Bridge condition assessment is an essential step in bridge management. To ensure safety and serviceability of bridge infrastructure, accurate condition assessment is needed to provide basis for bridge Maintenance, Repair, and Replacement (MRR) decisions. In Canada and the United States, visual inspection is the common practice to evaluate a bridge condition. Meanwhile, this practice is limited to detect surface defects and external flaws. For subsurface defects, Non-Destructive Testing and Evaluation (NDT&E) technologies are being used to supplement visual inspection. This paper reviews the common practices in assessing concrete bridges' conditions and discusses the limitations of available condition assessment models. Further, this research studies six NDT&E techniques and establishes a set of selection criteria which is utilized to compare each technique in terms of providing the best inspection results. Based on the comparison, it is found that Ground Penetrating Radar (GPR) appears to be the most appropriate NDT&E techniques for inspection of concrete bridges. Thus, this paper recommends integrating GPR technology with the dominant visual inspection practice in order to establish a more accurate overall bridge condition rating system where surface and subsurface defects are assessed.
|Journal||MATEC Web of Conferences|
|Publication status||Published - 9 Aug 2017|
|Event||1st International Conference on Advances in Sustainable Construction Materials and Civil Engineering Systems, ASCMCES 2017 - Al-Razi Hall, Medical and Health Science Colleges, University of Sharjah, Sharjah, United Arab Emirates|
Duration: 18 Apr 2017 → 20 Apr 2017
ASJC Scopus subject areas
- Materials Science(all)