Michihiko Abe

Effects of Exposure Term on the Strength and Elasticity of Concrete Subjected to Elevated Temperature up to 175°C

There are many papers on the effects of high temperature on concrete, but papers about properties of concrete subjected to lower elevated temperature such used in nuclear power plants are still limited. This paper presents the results of experiments conducted to determine the effects of term of exposure to elevated temperatures below the limit for concrete component in nuclear power plants. Sealed cured cylinders made of normal weight concrete containing ordinary portland cement were subjected to temperatures from 20 to 175°C without seal for 10, 30 and 90 days. After exposure, cylinders were tested for weight loss, compressive strength and static modulus of elasticity.