Techno Press

Steel and Composite Structures   Volume 20, Number 3, February29 2016, pages 671-692
Bond between FRP formworks and concrete-effect of surface treatments and adhesives
Reema Goyal, Abhijit Mukherjee and Shweta Goyal

Abstract     [Full Text]
    FRP stay-in-place (SIP) formworks are designed as a support for casting concrete and as a tension reinforcement when concrete is cured. Bond development between SIP formwork and concrete is critical for FRP tension element to be effective. This paper reports the bond strength between FRP formwork and concrete for different interfacial treatments. A novel experimental setup is prepared for observing the bond behaviour. Three different adhesives with varying workability have been investigated. Along with the load-deformation characteristics, bond slip and strains in the formwork have been measured. A finite element numerical simulation was conducted for the experiments to understand the underlying mechanism. The results show that the adhesive bonding has the best bond strength.
Key Words
    Fibre Reinforced Polymers (FRP); bond; adhesives; aggregate bonding; adhesive bonding; failure modes
(1) Reema Goyal, Shweta Goyal:
Department of Civil Engineering, Thapar University, Patiala 147001, India;
(2) Abhijit Mukherjee:
Department of Civil Engineering, Curtin University, Perth, WA 6102, Australia.

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