Investigation into the form of the load-induced thermal strain model

Investigation into the temperature function and the normalised load level function, the product of which is postulated to form the equation which governs the load-induced thermal strain of cementitious materials. Using data from the literature, statistical methods and assumed forms of the equations involved, the normalised load level function is shown to be well modelled simply by the stress: cold compressive strength ratio and as a result, it is indicated that the temperature function cannot be universally plotted above a temperature of approximately 500 degrees C.