石灰石粉细度对水泥混凝土性能的影响  

作　　者：魏洋 黄文慧 余松柏[1] 陈超[1] 石华 谭建湘 任政 秦节发 

机构地区：[1]华新水泥股份有限公司,湖北武汉430070 [2]武汉晴川学院,湖北武汉430204 [3]赤壁招商局,湖北赤壁437399

出　　处：《中国水泥》2024年第S02期135-138,共4页China Cement

摘　　要：研究了石灰石粉细度对水泥混凝土工作性能、力学性能和耐久性能的影响规律。试验结果表明:降低石灰石粉细度可提高水泥混凝土粘聚性能,降低混凝土扩展度,提高混凝土耐磨性能;对混凝土力学性能和抗渗性能无明显影响;石灰石粉在混凝土中的应用效果与粉煤灰相比有一定的差距,但在普通的混凝土工程中是可以放心使用的。The influence of limestone powder fineness on the workability,mechanical properties and durability of cement concrete was studied.The test results show that reducing the fineness of limestone powder can improve the cohesion of cement concrete,reduce the expansion of concrete and improve the wear resistance of concrete;It has no obvious effect on the mechanical properties and impermeability of concrete;Although there is a certain gap between the application effect of limestone powder in concrete and fly ash,it can be safely used in ordinary concrete engineering.

关 键 词：石灰石粉 细度 水泥混凝土 性能 

分 类 号：TU528[建筑科学—建筑技术科学]