Temperature Stress Analysis of Mass Concrete under Early Age Curing Condition

Analysis on the temperature field and the temperature stress field of mass concrete at early age under different curing conditions was conducted by utilizing ANSYS software, in consideration of hydration heat of concrete, tensile strength, Young’s modulus and bond strength which change with time. The impact of different curing conditions on the crack resistance of mass concrete at early age was also analyzed. In the analysis, five curing conditions were simulated by changing the convection heat transfer coefficient. The results demonstrate that, curing condition has significant impact on the temperature field and the temperature stress field of mass concrete at early age. Under the condition of full insulation, concrete temperature distribution is even, which leads to a much smaller temperature stress.