Shear Characteristics between FRP-Concrete Bonding Interface

Abstract:

At present, fiber reinforced composite materials (FRP) are widely used in the reinforcement of concrete structures. The bonding interface between FRP plates and concrete is the key part of the strengthening of concrete structures with FRP plates. The bonding performance directly determines the success or failure of structural reinforcement. Based on the self-developed test device, the development of FRP and concrete in direct shear debonding test specimens, with the aid of advanced digital image correlation DIC technology, accurate measurement of specimen strain distribution on the surface of the FRP plate, and the FRP plate surface strain along the plate long distribution rule and the bond strength of the specimens was well researched, it reveals that the stripping of FRP and concrete interface failure process, and provides technical guidance for the treatment of FRP-concrete bond interface in practical projects.

• Periodical: Materials Science Forum (Volume 1005)
• Pages: 39-46
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1005.39
• Online since: August 2020
• Authors: Bing Qian*, Lei Zhang, Yue Ma, Xiang Li Kong
• Keywords: Bond Strength, De-Bonding Test, DIC, FRP-Concrete, Shear Characteristics

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