soundness of cement meaning in Chinese

水泥安定性
水泥固定性
水泥体积安定性

Limestone often contains small amount of magnesium oxide that is harmful to soundness of cement
石灰石中经常含有少量的氧化镁，这对水泥的安定性有害。
Effect of mgo , f - cao , feo , ro phase and metal fe in steel - making slag powder on soundness of cement is investigated by boiling test , steam test and autoclave test
采用沸煮、高温长时间蒸养及压蒸方法研究了钢渣粉中的f - cao 、 mgo 、 feo 、 ro相及金属铁对水泥安定性的影响。
As a kind of cement retarder , normal setting time and good effect for mechanical properties and soundness of cement can be got when adding desulfurization gypsum in cement , so it can used instead of natural gypsum to produce cement entirely , coal gangue is activated and coal ash desulfurized have good active , can improve cement output and also can depress consumption when them be used as mixed material , have well economic and environmental effects
脱硫石膏作水泥缓凝剂时，水泥的安定性、凝结时间正常，可改善水泥的力学性能，完全可替代天然石膏；活化后的煤矸石和脱硫煤灰具有较好的活性，用作水泥混合材可增加水泥产量、降低生产成本，具有良好的经济和环境效益。