本文论述了石膏作为水泥原料的化学原理,由此可以制得具有膨胀、自应力、快凝快硬和高强等特性的水泥。本文还着重介绍我国近年来研究成功的硫铝酸盐水泥系列、氟铝酸盐水泥系列、明矾石水泥系列、铝酸盐膨胀、自应力水泥系列和硫酸盐水泥系列等新成果。石膏对这些水泥的性能起着重要的作用。它们不但对石膏品种提出了技术要求,而且为石膏在水泥工业上的应用开拓了广阔的前景。 This article discusses the chemical principle of gypsum as a raw material for cement, which can produce cements with properties such as swelling, self-stress, fast setting, rapid hardening and high strength. This article also highlights new achievements in recent years, such as sulphoaluminate cement series, fluoroaluminate cement series, alumite cement series, aluminate expansion, self-stressed cement series, and sulfate cement series. Gypsum plays an important role in the performance of these cements. They not only put forward technical requirements for gypsum varieties, but also opened up broad prospects for the application of gypsum in the cement industry.