粉煤灰粒度分布对水泥性能的影响  

Influences of Particle Size Distribution of Fly Ash on Cement Properties

作　　者：李旭光[1] 陶珍东[1] 杨鹤[1] 朱春红[1] 刘秀美[1] 

机构地区：[1]济南大学材料科学与工程学院,山东济南250022

出　　处：《徐州工程学院学报（自然科学版）》2014年第1期53-57,共5页Journal of Xuzhou Institute of Technology(Natural Sciences Edition)

摘　　要：利用灰色关联分析方法研究粉煤灰的粒度分布对水泥性能的影响.结果表明:0～5μm、5～10μm粉煤灰颗粒分别是水泥3d、28d抗压强度的最强影响因子;水泥3d、28d强度随小于33μm的粉煤灰颗粒含量增大而提高,随大于33μm的粉煤灰颗粒含量增大而降低;可以通过优化粉煤灰的粒度分布来改善水泥性能.The effect of particle size distribution of fly ash on properties of cement was investigated by using grey volume correlation analysis method. Research results indicate that the fly ash particles of 0-5 μm and 5-10 μm respectively have significantly effect on the 3 d and 28 d strength;Fly ash particles of 0- 33μm have enhancing effect on 3 d and 28 d strength. However,strength decreases with increasing of con- tent of the fly ash particles of larger than 33 μm. Therefore, cement properties can be improved by optimi- zing particle size distribution of fly ash powder.

关 键 词：粉煤灰 粒度分布 比表面积 灰色关联分析 

分 类 号：TQ172.715[化学工程—水泥工业]