連続繊維補強コンクリート(構造)

[2190] INVESTIGATION ON MOISTURE BEHAVIOR FOR DIFFERENT FRP-CONCRETE BONDED SYSTEMS

座長(土木)：松本信之
座長(建築)：花井伸明
講演者：Justin SHRESTHA¹, 上田多門², Dawei ZHANG³ (1.Hokkaido University, Civil Engineering 2.北海道大学 Civil Engineering 3.Zhejiang University, Civil Engineering)

キーワード：bond, concrete, FRP, interface, water

The Fiber Reinforced Polymer (FRP)-concrete bond durability under moist condition for different FRP composites was investigated by the experimental study. From the obtained results up to 12 months, the durability of the composites is found to be highly dependent on the selected materials. Among 6 kinds of different FRP-concrete composites selected for the study, two kinds of the composites showed some reductions in shear bond strength and failures were adhesion failure at the concrete-resin interface, while the remaining composites showed insignificant change. Meanwhile tensile bond strengths were reduced in most of the cases after exposure even though the failures occurred at the concrete region.