摘要
将粉煤灰粉磨后,以不同比例与一定细度水泥配合,制成一系列粉煤灰水泥粉体.根据Dinger-Funk数学模型得出粉煤灰水泥粉体最佳颗粒群分布即最紧密堆积颗粒群分布.通过水泥与粉煤灰激光粒度检测结果计算粉煤灰水泥粉体实际颗粒群分布.运用灰色关联分析原理考察粉煤灰水泥粉体实际颗粒群分布与最紧密堆积颗粒群分布的相关性,同时测定粉煤灰水泥标准稠度用水量以及胶砂抗压强度.结果证明:当粉煤灰水泥粉体实际颗粒群分布与最紧密堆积颗粒群分布关联度较高时,相应粉煤灰水泥标准稠度用水量增加较少,胶砂抗压强度发展较理想.
Fly ash powder, which was grinded to different particle size distribution, was mixed in a series of proportions with Portland cement. The particle size distribution with the theory densest packing was obtained according to Dinger-Funk equation and the practical particle size distributions of fly ash cements were calculated according to the tested results of the cement and fly ash powder by LS-230 particle size distribution instrument. The relationships between the particle size distribution with the theory densest packing and practical particle size distributions of fly ash cements were studied by the grey connection analyses method. The water consumption of standard consistence of fly ash cement and mortar compressive strength were tested to provide the theory analyses. The results indicate that fly ash cement would have better properties when the value of grey connection degree between the practical particle size distribution of fly ash cement and particle size distribution with the theory densest packing is higher.
出处
《建筑材料学报》
EI
CAS
CSCD
2007年第1期43-47,共5页
Journal of Building Materials
基金
国家重点基础研究发展规划(973)项目(2001CB610703)
关键词
紧密堆积
灰色关联度
粉煤灰水泥性能
dense packing
degree of grey connection
property of fly ash cement
