Advancement of Quality Control of Bridge Repair Work by Nondestructive Testing

Against the background of numerous reports about deterioration of concrete structures notwithstanding the completion of repair work, the purpose of this study was to verify the validity of the proposed method using by Impact Elastic Wave Method to control the quality of repair works. The proposed method was applied on an experimental basis to a bridge where application of the Section Repair Method was completed in 2016. As a result, outlier points in the bridge were revealed by the Impact Elastic Wave Method and construction faults were found at these points by the coring method. These results indicate that the proposed method can be expected to contribute as an effective measure to prevent deterioration of concrete structures after repair work.