Comparative Analysis of Substrate Wet Surface Adhesion and Substrate Movement Response Performance Testing Methods for Injection Type Repair Materials Used in Leakage Cracks of Concrete Structure in Underground Environment

지하 습윤 환경에서 콘크리트 구조물 균열 누수에 사용되는 주입형 보수재료의 부착 성능과 거동 대응 성능 평가의 상관성 분석 연구

The focus of this study was centered around 15 common injection type water leakage repair materials (3 different types for each; synthetic polymer, cementitious, acrylic, epoxy, urethane) used in concrete structures of Korea and analyzing their wet surface adhesion performance in accordance to the ISO TS 16774 Test Method for Repair Materials for Water-leakage Cracks in Underground Concrete Structures, Part 4: Test Method for Adhesion on Wet Concrete Surface, and the results of this study was taken to be place under a comparative analysis with the results of the preceeding study on response to substrate movement performance study. The results of this comparative study showed that other than 1 specimen of 1 type of the acrylic and 3 specimens of 1 type of the synthetic polymer type materials, all of the 93% of the specimens used in this study showed stable adhesion on wet substrate surface, and we were able to determine that materials that have proper response properties against substrate movement are highly flexible and have high adhesion properties, but their adhesion properties on wet substrate would change based on their viscosity.