Effects of the Mineral Composition of Cement on the Temperature Dependency of Strength Development

Abstract

The use of low heat Portland cement has been promoted in recent years. However, there is no general method to predict the strength development of the concrete using cement that is composed of a wide range of minerals and the application of the ‘maturity method (accumulated temperature)” has proved difficult for low heat Portland cement. Therefore, the authors consider the application of the equivalent age to predict the strength development of concrete using various type of cement. The strength development of mortar using cement that is composed of a wide range of minerals under different curing temperatures are then examined. As a result, the temperature dependency of strength development of various cements is explained by the equivalent age. The values of the apparent activation energy of cement are dependent on its mineral composition. This paper is the English translation from the authors’ previous work [Taniguchi, M., Katsura, O., Sagawa, T. and Hama, Y., (2011). “Effects of the mineral composition of cement on the temperature dependency of strength development.” Journal of Structural and Construction Engineering (Transactions of AIJ), 76(661), 443-448. (in Japanese)].