硅微粉对新拌水泥浆体密实度性能的影响研究  

Study the Effects of Microsilica on Denseness of Fresh Cement Paste

作　　者：刘秀伟[1] 刘次啟 刘庆 LIU Xiuwei;LIU Ciqi;LIU Qing(Guizhou Institute of Technology,Guiyang 550000,China;Guizhou Building Material Quality Supervision Testing Center,Guiyang 550000,China)

机构地区：[1]贵州理工学院,贵州贵阳550000 [2]贵州省建材产品质量监督检验院,贵州贵阳550000

出　　处：《四川建材》2017年第11期5-6,共2页Sichuan Building Materials

摘　　要：针对一种新型硅微粉矿物掺合料,本文采用浆体的相对密实度指标定量分析其对新拌水泥浆体密实度性能的影响,进一步分析新拌水泥浆体的相对密实度对浆体硬化体性能的影响,研究结果表明:随着硅微粉(占胶凝材料比例为0~50%)掺量的增加,新拌水泥浆体相对密度、流动度呈现先增加后降低的变化趋势,硬化体3、7、28 d强度逐渐降低,并进一步阐述了硅微粉对新拌水泥浆体的物理填充效应。The effects of mineral admixtures microsilica on the denseness of fresh cement paste was quantitatively studied with the index of relative denseness.The results shown that the fluidity and relative density of fresh cement paste was first increased and then decreased with increasing of the content of microsilica comtent varies from0~50%,and the strength of hardened was decreased,as well as the influence relative density and fluidity on compressive strength of hardened are analyzed to expected to further expound the physical filling effect of microsilica.

关 键 词：硅微粉 相对密实度 硬化体性能 填充效应 

分 类 号：TU528[建筑科学—建筑技术科学]