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Freeze-Thaw Effect on Coarse Sand Coated Interface between FRP and Concrete
Infrastructure Research Department, Korea Institute of Construction Technology, Goyang, South Korea
Infrastructure Research Department, Korea Institute of Construction Technology, Goyang, South Korea
Infrastructure Research Department, Korea Institute of Construction Technology, Goyang, South Korea
Infrastructure Research Department, Korea Institute of Construction Technology, Goyang, South Korea
Infrastructure Research Department, Korea Institute of Construction Technology, Goyang, South Korea
- 1 Infrastructure Research Department, Korea Institute of Construction Technology, Goyang, South Korea
- 2 Infrastructure Research Department, Korea Institute of Construction Technology, Goyang, South Korea
- 3 Infrastructure Research Department, Korea Institute of Construction Technology, Goyang, South Korea
- 4 Infrastructure Research Department, Korea Institute of Construction Technology, Goyang, South Korea
- 5 Infrastructure Research Department, Korea Institute of Construction Technology, Goyang, South Korea
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Abstract
This paper examines the effect of freezing and thawing on the coarse sand coating chosen to achieve the composition of FRP and concrete in FRP-concrete composite deck. Push-out test specimens with dimensions of 100 × 100 × 450 mm were subjected to repeated freeze-thaw cycles under wet conditions ranging from -18 ℃ ± 2 ℃ to 4 ℃ ± 2 ℃ . The failure strength of the interface and the deformation of FRP at failure exhibited by the specimens that experienced 300 freezing-thawing cycles showed a difference of merely 5% compared to those of the specimens that were not subjected to freeze-thaw. This indicates that coarse sand coating is not affected by freezing-thawing cycles and the FRP-concrete composite deck owns sufficient applicability in terms of durability against freezing-thawing.
KeywordsFreeze-ThawCoarse Sand CoatingInterface FailureFRPConcrete
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