FRP 표면매립 공법 적용 무기계 내화 접착제의 기초적 연구

In the case of aged structure, maintenance and reinforcement are inevitable for improving the performances and durability. Among the maintenance and reinforcement of the building structures, FRP surface mounted method has been suggested as a successful method in reinforcing efficiency, durability, and fire resistance with its increased adhesive area due to the mounting method of filling epoxy adhesive in groove at tensile area of reinforced concrete structure. However, the epoxy resin used as an adhesive can be lost its adhesive performance with fire conditions, the surface mounted method should be improved with inorganic adhesives against fire exposed conditions. In this research, with the aim of inventing a new inorganic adhesive for FRP surface mounted method, the fundamental properties and fire resisting performance of aluminosilicate based fireproof adhesive were assessed. As a result, under the high temperature conditions, aluminosilicate based adhesive showed higher adhesive performance than organic adhesives such as an epoxy resin.