掺煤矸石的水泥性能与颗粒群分布的关系研究  

Study on the relationship between the properties of coal gangue cement and its particle size

作　　者：张永娟[1] 张雄[1] 

机构地区：[1]同济大学混凝土材料研究国家重点实验室,上海200092

出　　处：《水泥》2003年第11期4-7,共4页Cement

基　　金：国家重点基础研究发展规划(973)项目(2001CB610703)

摘　　要：将不同细度的煤矸石、纯硅酸盐水泥分别按30%和70%的比例混合,测其胶砂流动度、净浆标准稠度用水量和3d、28d胶砂抗压强度。以宏观性能指标为z轴,水泥与煤矸石的中位径D50之差为x轴,水泥与煤矸石混合样的中位径D50为y轴,进行三维区域图分析。给出各项性能指标发展趋势与水泥、煤矸石的相对位置以及混合体系总体细度的相互关系。The coal gangue and cement samples that have different fineness were mixed in proportion of 30%and 70%. The mortar strength of coal gangue cement at age of 3d and 28d,mortar fluidity and the water requirement of normal consistency of the coal gangue-cement paste were tested. Origin software was used to make tri-dimension picture, in which macro property was enacted as z axes, the difference between D50 of cement and coal gangue enacted as x axes, D50 of coal gangue-cement mixing sample enacted as y axes. The relationship between the developmental trend of macro property and the difference between D50 of cement and coal gangue and D50 of coal gangue-cement mixing sample. The best particle size distribution matching of cement and coal gangue was given.

关 键 词：煤矸石 颗粒群分布 硅酸盐水泥 胶砂强度 胶砂流动度 抗压强度 

分 类 号：TQ172.71[化学工程—水泥工业]