ABSTRACT
In this study, the heat of hydration and the strength relation of blended cement has been experimentally investigated. The blended cement mixture was prepared using one type of clinker and two types of pozzolans in different amounts, such as 10, 20 and 30 %, by weight of clinker, along with the controls. Two types of grinding, two types of fineness, and three different ratios of additives were used. Cement paste and mortars were prepared, and their compressive strength was also determined. The results indicate that the studied pumice and slag can reduce the heat of hydration. Compared to the heat of hydration of separated grinded system, the heat of hydration of blended cements are higher than the heat of hydration of separated cements when the fineness and the ratio of additives are held constant.
