增钙灰是发电厂采用立式旋风炉并添加石灰作为助熔剂时生产出的副产品 ,它的品质与普通粉煤灰在诸多方面存在差异 ,从而限制了增钙灰在混凝土中的应用。本文就增钙灰在混凝土中的应用问题进行了试验研究 ,在体积安定性合格的前提下 ,按照等稠原则 ,采用等量取代掺和方法 ,讨论了增钙灰对混凝土耐久性的影响 Calcareous ash is a by-product of a power plant that uses a vertical cyclone furnace with lime added as a flux, and its quality differs from that of ordinary fly ash in many ways, thereby limiting the use of increased calcium ash in concrete. In this paper, the application of calcareous cement in concrete was studied. Under the condition of volume stability, according to the principle of equal thickness, the method of equal substitution and blending was used to discuss the effect of calcareous cement on the durability of concrete