磨细粉煤灰粉磨制度对其水化行为和强度的影响分析  

Hydration behavior and strength analysis of pulverized fly ash in cement slurry under different grinding systems

作　　者：马军涛 王大广 陈浩[2] 王晓[2] MA Juntao;WANG Daguang;CHEN Hao;WANG Xiao(North China University of Water Resources and Electric Power,Zhengzhou 450045,China;International Joint Research Lab for Eco-building Materials and Engineering of Henan,Zhengzhou 450045,China)

机构地区：[1]华北水利水电大学土木与交通学院,河南郑州450045 [2]华北水利水电大学,河南郑州450045 [3]河南省生态建材工程国际联合实验室,河南郑州450045

出　　处：《混凝土》2021年第1期94-97,共4页Concrete

基　　金：国家自然科学基金“无机超分子材料抑制混凝土硫酸盐侵蚀反应的基础研究”(51508191);河南省科技攻关项目“磨细粉煤灰在水泥基材料中的水化特性和流变性能研究”;水利部堤防与病害防治工程技术研究中心开放课题基金资助项目“磨细粉煤灰制备高抗渗混凝土试验研究”。

摘　　要：对不同粉磨制度下得到的磨细粉煤灰进行性能表征,并使用磨细粉煤灰制备水泥浆体,进行强度测试和水化产物物相分析。研究结果表明:设有分选系统的立磨制备的磨细粉煤灰粒度更小,而试验室球磨机在粉磨过程中更多球形颗粒被破坏,更易激发出其火山灰活性,增强其在水泥浆体中的水化程度,从而表现出更高的强度。The properties of ground fly ash in different grinding systems were tested,and the cement paste containing ground fly ash was prepared,while the strength and mineral composition of hydration products were analyzed.The results show that the ground fly ash prepared by the vertical mill with the separation system shows smaller particle size distribution.In contrast,more spherical particles are destroyed in the grinding process of the ball mill,which improves the pozzolanic activity,enhances the hydration degree,and increases the compressive strength of cement paste.

关 键 词：粉磨制度 磨细粉煤灰 抗压强度 物相组成 水化程度 

分 类 号：TU528.041[建筑科学—建筑技术科学]