The setting and hardening of concrete is accompanied by nonlinear temperature distribution caused by developing heat of cement hydration. Especially at early ages, nonlinear temperature distribution has a large influence on the crack evaluation. Therefore, it is necessary for the prediction of an exact temperature history in concrete to investigate the thermal properties.
This paper presents experimental works on the evaluation of thermal properties such as the thermal conductivity and the convection heat transfer coefficient which are one of thermal properties and characteristics of the thermal transfer. Based on the experimental result, the thermal conductivity is increased with water and aggregate content, but it is little dependent on age. According to the convection heat transfer coefficient test, the heat elimination to air is increased with velocity of wind and affected by thermal properties of forms. And the amount and details of reinforcement also affect the heat transfer in concrete mass.
