Effectiveness of alkali-activated slag cementitious material as adhesive for structural reinforcement

摘要

Alkali-activated slag cementitious material (AASCM), a high-temperature resistant inorganic adhesive, is presented in this paper. The components of AASCM were optimized for favorable mechanical properties. A FRP-to-concrete bond test to account for the influence of FRP and adhesive types was performed on thirty-three specimens. The results show that after the double shear tests, the interfacial shear strengths and reinforcing effects of AASCM are comparable to that of epoxy adhesive, and this strengthening method of strengthening concrete structures with CFRP sheets bonded with AASCM is feasible.