균열 보수재료의 성능평가를 위한 실험적 연구

In this study, the surface cracks, epoxy filled state to the depth of cracks and the adhesion of cracks are analyzed in order to assess the performance of the materials for crack repair. For this, the 10 sites of field core sampling for cracking 0.3mm or more were conducted in the rail bridges crack injection sites. After eight months to repair cracks, the coring was performed to consider the impact of the vibration caused by cyclic loading of vehicle and also seasonality. The results can be used as the basic data for the selection of the crack repair materials and maintenance of the railway bridge in the future.