Experimental and analytical analysis of the effect of fibre treatment on the thermomechanical behaviour of continuous carbon textile subjected to simultaneous elevated temperature and uniaxial tensile loadings

In the case of fire, the carrying capacity of the textile-reinforced-concrete (TRC) depends greatly on the thermomechanical behaviour of the reinforcement textile at elevated temperatures. Carbon textiles are manufactured in industry as commercial products for application in TRC. The treatment of carbon fibres by products of different natures in the manufacturing chain also influences the thermomechanical behaviour and mechanical property evolution as a function of temperature. This paper presents an experimental study on the tensile behaviour of three different continuous carbon textiles subjected to simultaneous mechanical loading and elevated temperatures (varying from 25 °C to 600 °C). The results on three carbon textiles are compared to understand the effect of fibre treatment on the thermomechanical behaviour of carbon textile. The experimental results are used to calibrate a prediction analytical model (Mouritz and Gibson), which can be applied to the thermomechanical estimation of carbon textile under different temperature and mechanical conditions.