三组分低热水泥是一种掺合大量磨细矿渣和粉煤灰的混合水泥。它加上高效减水利,可配制出高工作度、高耐久性、高强度、低发热量和具有良好经济性的混凝土。这种水泥能大量利用矿渣和粉煤灰,有利于环境保护。大体积混凝土采用这种水泥能省去降温冷却管,混凝土不出现开裂,加快施工进度。它是80年代后期发展起来的一项新技术。日本明石大桥已成功地采用了这种新材料。 Three-component low-heat cement is a blend of a large amount of finely ground slag and fly ash mixed cement. Together with efficient water reduction, it can be formulated with high workability, high durability, high strength, low heat and good economy of concrete. This kind of cement can make great use of slag and fly ash, which is good for environment protection. The use of such a large volume of concrete can save cooling pipe cooling, concrete does not appear cracking, to speed up the construction schedule. It was a new technology developed in the late 1980s. Japan’s Akashi Bridge has successfully adopted this new material.