Hygrothermal Effect on Interfacial Bond between CFRP and Concrete made from Local Materials

Numerous researches have been conducted on repair and retrofitting of traditional structures using externally bonded Fiber Reinforced Polymer (FRP) with epoxy, and the results of such studies are being implemented in real construction projects without adequate consideration of the unique environmental challenges in the Kingdom. The Kingdom of Saudi Arabia usually experience high temperature, and relative humidity which may have adverse effect on the bonding between FRP and concrete substrate. Therefore, this research aims to experimentally study the effect of hygrothermal condition on the bond between FRP and concrete. Externally bonded FRP Concrete block samples will be cast and subjected to different shear test, after exposure to combine accelerated high temperature and relative humidity. The results obtained will be used to validate standard results available in design guides which will help practicing engineers and government agency in the kingdom on environmental factors to be used for bond strength reduction of FRP-Concrete within the Kingdom.