基于有效提高水泥中石灰石粉掺入量的研究  

Based on the Study of Effectively Increasing the Content of Limestone Powder in Cement

作　　者：卢春丽[1] 蒋玲[1] 蒋庆华[1] 刚丹 黄永珍[1] LU Chun-li;JIANG Ling;JIANG Qing-hua;GANG Dan;HUANG Yong-zhen(School of Architectural Engineering,Anhui Vocational and Technical College,Hefei 230011,China)

机构地区：[1]安徽职业技术学院建筑学院

出　　处：《长春师范大学学报》2019年第12期68-71,共4页Journal of Changchun Normal University

基　　金：安徽省教育厅自然科学研究重点项目“天长市中医院地下水源热泵系统对周边地水流场分析”(KJ2016A388)

摘　　要：实验研究了石灰石粉不同掺量下的水泥胶砂理化性能。石灰石粉虽然在水化后具有一定的活性,但大掺量的石灰石粉会使水泥胶砂后期强度损失较大。与磷石膏适当配比同掺可以改善甚至消除这一弊端。本文通过实验找出提高水泥中石灰石粉掺入量的方法,实验表明,石灰石粉与磷石膏搭配使用让石灰石硅酸盐水泥代替其他品种水泥,具有很好的社会意义和经济价值。The physical and chemical properties of cement mortar with different content of limestone powder were studied.Although limestone powder has a certain activity in the later stage of hydration,the large amount of limestone powder will cause the strength loss of cement mortar in the later stage.However,this disadvantage can be improved or even eliminated when it is mixed with phosphogypsum and properly proportioned.At the same time,the method to increase the amount of limestone powder in cement is found through experiments.The results show that the limestone Portland cement has a good social and economic value to replace other kinds of cement.

关 键 词：石灰石粉 水泥性能 磷石膏 

分 类 号：TQ172[化学工程—水泥工业]