脱硫石膏是火电厂烟气脱硫产生的固体废物。将其级烧成无水石膏，采用粉煤灰等无机活性材料残性，可配制出强度与耐水性明显优于普通建筑石膏的粉煤灰改性脱硫无水石膏胶结材，是脱硫石膏的有效利用。本文介绍这种胶结材的配制原理适宜的养护方式、性能以及该胶结材试制砌块的情况。 Desulfurized gypsum is the solid waste produced by flue gas desulfurization in thermal power plants. Its grade is fired into anhydrous gypsum, using fly ash and other inorganic active materials residual, can be formulated with strength and water resistance is significantly better than ordinary building gypsum fly ash modified desulfurized anhydrous gypsum cement, is desulfurized gypsum use efficiently. This article describes the proper curing method and performance of the cementing principle and the conditions of the cement block trial block.