Calculation Method of Restrained Stress of Expansive Concrete Using Blast Furnace Slag Cement

Abstract

 This study investigates the temperature-dependant material property models for expansive strain and modulus of elasticity of expansive concrete using blast furnace slag cement (type B), while the authors already reported on those using ordinary portland cement. In addition, the effect of expansive concrete on controlling thermal cracking of the pier structure was numerically evaluated using a FEM program, considering the material property models obtained from this study. The results show that the presented material property models are applicable to calculate the restrained stress history of expansive concrete with mass curing temperature history.