颗粒级配对矿渣水泥的性能影响研究  

Effects of Grain Gradation on the Performance of Slag Cement

作　　者：曾德强[1] 钱觉时[1] 吴传明[1] 贾兴文[1] 

机构地区：[1]重庆大学材料科学与工程学院,400045

出　　处：《混凝土与水泥制品》2010年第6期1-4,共4页China Concrete and Cement Products

基　　金：西部交通科技项目(2009318000033);重庆市交通科技项目资助

摘　　要：通过调整粉磨时间获得不同细度矿渣水泥,并将不同细度水泥按一定比例混合获得颗粒级配不同的矿渣水泥。试验研究了细度对水泥标准稠度用水量、凝结时间、强度发展和砂浆收缩变形的影响,结果表明:不同细度的矿渣水泥混合后改善了水泥的颗粒级配,对水泥性能有积极作用;不同细度的矿渣水泥混合后配制的砂浆抗压和抗折强度略有增加,收缩明显减小。Slag cements of different fineness are obtained by controlling the grinding time,and according to a certain proportion,these cements are mixed to obtain slag cements of different grain gradation.The effects of cement fineness on water requirement of normal consistency for cement,setting time,strength development and mortar shrinkage are studied.The results indicate that the grain gradation of slag cement is improved by mixing the slag cements of different fineness,which is positive to the properties of slag cement.The compressive strength and flexible strength of mortar mixed by slag cements of different fineness are increased slightly;meanwhile the shrinkage of mortar is decreased obviously.

关 键 词：细度 矿渣水泥 级配 强度 收缩 

分 类 号：TU528.1[建筑科学—建筑技术科学]