石灰石粉对水泥胶砂性能的影响研究  

Study on the influence of Limestone Powder on Performance of Cement Mortar

作　　者：杭美艳[1] 高萌[1] 孙成晓[1] 兰英静 

机构地区：[1]内蒙古科技大学,内蒙古包头014010 [2]包头市钢鹿建材有限责任公司,内蒙古包头014010

出　　处：《中国包装科技博览（混凝土技术）》2012年第11期46-49,共4页China Science and Technology Review

摘　　要：本文将石灰石破碎后产生的粒径小于O．08mm的粉尘颗粒（石灰石粉）按不同比例等量替代水泥，研究其对水泥胶砂性能的影响及其作用机理，确定石灰石粉的最佳掺量。结果表明：石灰石粉的掺量小于12％时，既能较大幅度地提高胶砂流动度，具有减水作用，又不降低胶砂强度，说明石灰石粉具有一定的活性，不完全是惰性材料。This paper uses dust particles （ limestone powder ） which was produced by crushing limestone to replace the same amount of cement in different proportions, study the performance of cement mortar and mecanism of action, and determines the best dosage of limestone powder. Its size is less than 0.08mm. The result shows that limestone powder can improve mortar fluidity greatly, has water-reduce effect and does not reduce the strength of the mortar when the dosage of limestone powder is less than 12%, which explaines that limestone powder has a certain activity, not the inert material entirely..

关 键 词：石灰石粉 强度 流动性 

分 类 号：TQ172.12[化学工程—水泥工业]