罗源地区石粉粉磨特性及对胶砂性能影响研究  

Study on Grinding Characteristics of Stone Powder and Influence on Properties of Mortar in Luoyuan

作　　者：许华毅 XU Huayi(Lianjiang Xinyuan Construction Engineering Material Testing Co.,LTD,Fuzhou 350001)

机构地区：[1]连江县鑫源建筑工程材料检测有限公司,福建福州350001

出　　处：《福建建筑》2022年第2期32-35,共4页Fujian Architecture & Construction

摘　　要：研究罗源地区石粉的粉磨特性,并通过掺入不同添加剂改善其粉磨性能和胶砂性能。结果表明,纯机械粉磨对石粉的胶砂性能改善不明显,粉磨时间超过120 min会降低其粉磨效率,适量的粉煤灰和NaOH能够改善石粉的易磨性和胶砂性能。当掺入10%粉煤灰和1%NaOH并经90 min粉磨后,石粉的比表面积、胶砂流动度和抗压强度等各项性能最优。This paper aimed to study the grinding characteristics of stone powder in Luoyuan,and improved its grinding performance and mortar performance by adding different additives.The results showed that the modification of stone powder by mechanical grinding was not obvious,and the grinding efficiency decreased when the grinding time exceeds 120 min.While the proper amount of fly ash and NaOH could modify its grindability and mortar properties.When 10%fly ash and 1%NaOH were added and ground for 90 minutes,the specific surface area of the stone powder and the fluidity and compressive strength of mortar with it were improved.

关 键 词：石粉 粉磨特性 胶砂性能 改性 

分 类 号：TU52[建筑科学—建筑技术科学]