石灰石粉尘对水泥胶砂性能的影响研究  

Influence Research of Limestone Dust 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,包头014010 [2]包头市钢鹿建材有限责任公司,014010

出　　处：《混凝土与水泥制品》2013年第5期13-15,共3页China Concrete and Cement Products

摘　　要：将石灰石破碎后产生的粒径小于0.08mm的粉尘颗粒按不同比例等量替代水泥,研究其对水泥胶砂性能的影响。结果表明,石灰石粉尘的掺量小于12%时,既具有减水作用,又不降低胶砂强度;同时,石灰石粉尘的掺入能有效改善水泥胶砂的收缩性能和抗硫酸盐侵蚀性能,说明石灰石粉尘具有一定的活性,不是惰性材料。The dust particles with the size less than 0.08mm which was produced by crushing limestone is used to re- place the same amount of cement in different proportions, and the performances of cement mortar are studied. The results show that limestone dust has water-reduce effect and does not reduce the strength of the mortar when the dosage of lime- stone dust is less than 12%. Meanwhile, the addition of limestone powder can improve the shrinkage property and the sul- phate corrosion resistance, which can explain that the limestone dust has a certain activity, is not the inert material.

关 键 词：石灰石粉尘 强度 流动性 收缩 抗硫酸盐侵蚀性能 

分 类 号：TQ172.71[化学工程—水泥工业]