2019 Volume 75 Issue 3 Pages 157-168
In this study, in order to establish an estimation method of the compressive strength of ultra high strength mortar using alite cement and pozzolanic fine powder as a binders, equivalent age considering apparent activation energy was adopted to the estimation of the compressive strength. As a result, the estimated apparent activation energy increased depends on the development of the compressive strength and curing temperature. The temperature dependency of the compressive strength can be evaluated with high accuracy when the equivalent age modified by the obtained apparent activation energy was used. In addition, it was shown that the apparent activation energy is strongly influenced by the hydration of pozzolanic fine powder.