Modelling of NSM CFRP strips embedded in concrete after exposure to elevated temperature using epoxy adhesives

The repair and strengthening of concrete structures with composite material has become common during the last decade. Based on experimental results of specimens damaged by heating and subsequently repaired using CFRP laminate and epoxy adhesive, finite element analysis (FEA) was conducted to simulate the bond behaviour between NSM CFRP strips and heat-damaged concrete. The theoretical parameters included unheated and heat-damaged concrete and level of heat exposure. The finite element models (FEMs) showed reasonable agreement with the experimental results, and can therefore be used to predict the effects of high temperature on pull-out values after exposure to elevated temperatures.