石灰石矿粉在水泥混凝土中的应用  

Utilization of Limestone as Mineral Admixture in Cement and Concrete

作　　者：李悦[1] 丁庆军[2] 胡曙光[2] 

机构地区：[1]北京工业大学建工学院,北京100022 [2]武汉理工大学材料科学与工程学院,武汉430070

出　　处：《武汉理工大学学报》2007年第3期35-37,41,共4页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50408004);北京市科技新星资助项目(2005B09)

摘　　要：开发出了一种石灰石复合激发剂,应用该种激发剂可以用抗压强度52.5 MPa的熟料稳定生产出石灰石混合材掺量为30%的42.5 MPa水泥。同时该种复合激发剂对于大掺量石灰石粉的混凝土也具有良好的增强作用,并且石灰石矿粉可以有效改善混凝土的收缩性能。因此认为,石灰石作为一种新型改性材料在水泥混凝土中具有良好的应用前景。In this paper, a kind of limestone compound active agent （LCAA）, which can greatly increase the strength of blended limestone cement was introduced. For example, 52.5 MPa clinker can generate 42.5 MPa cement containing 30% limestones by mass when LCAA was used in the cement. Simultaneously, LCAA also had good effects on the strength increment of limestone mineral admixture concrete. Moreover, the shrinkage property of concrete was obviously decreased by adding lime stone admixture. Therefore, limestone had good future as mineral admixture in cement and concrete.

关 键 词：石灰石粉 石灰石激发剂 水泥混凝土 收缩 

分 类 号：TU528[建筑科学—建筑技术科学]