Abstract
In this study, the effects of different of various sorts of cements and ages on elastic modulus of elasticity of high-strength concrete were investigated. As a result, the shorter the period of curing, the smaller the development of elastic modulus of elasticity, even though the same compressive strength of high-strength concrete was obtained. In case low-heat portland cement was used, the tendency appeared in particular conspicuously. Furthermore, the shorter the period of curing, the smaller the calculated value of elastic modulus of elasticity according to the New RC formula. Therefore, it is considered that the calculated value can be made more accurate when coefficients of cements and ages are added to the New RC formula.
