Continuous fiber reinforced concrete (structural)

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

Justin SHRESTHA¹, Tamon UEDA², Dawei ZHANG³ (1.Hokkaido University, Civil Engineering 2.北海道大学 Civil Engineering 3.Zhejiang University, Civil Engineering)

Keywords: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.