Abstract
Increasing the amounts of minor additional constituents in ordinary Portland cement (OPC) is one of the effective approaches for reducing the CO2 emissions from the cement industry. However, this approach should affect the performance of mortar and concrete. In this study we widely investigated the influence of increasing the minor additional constituents on the quality of cement. By varying the composition and fineness of the base cement as well as the type of minor additional constituents, the quality evaluation was carried out on the test cements containing minor additional constituents up to 10mass%. It was found possible to make the quality of the cement containing 10mass% minor additional constituents equivalent to that of current OPC by increasing the C3S content by 0.7 to 1.5mass% and Blaine specific surface area by 100 to 200cm2/g.
