High-Volume Mineral Admixtures Cement: The Effects of Particle Size Distribution

作     者：黄启珉 WANG Kun LU Jiping YU Jianping SHENG Zhenhua 杨露 HUANG Qimin;WANG Kun;LU Jiping;YU Jianping;SHENG Zhenhua;YANG Lu

作者机构：State Key Laboratory of Silicate Materials for ArchitecturesWuhan University of TechnologyWuhan 430070China School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China Fujian Jinniu Cement Co.LtdSanming 353300China 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2024年第39卷第1期

页      面：102-108页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0714[理学-统计学（可授理学、经济学学位）] 0814[工学-土木工程] 0701[理学-数学] 

基　　金：Funded by the National Natural Science Foundation of China(No.52172025) 

主　　题：ultrafine slag microstructure compressive strength particle size 

摘      要：The effects of high-volume slag-fly ash cement with different particle sizes on hydration degree,microstructure and mechanical properties were systematically studied,by means of laser particle size(DLS),X-ray diffraction (XRD),comprehensive thermal analysis (TG-DTA),scanning electron microscopy(SEM) and mechanical properties *** results show that suitable particle size distribution of cementitious material has significantly promoting effects on hydration reaction rate and mechanical *** with slag without further grinding,the slag after ball milling for 4 h has an obvious improvement in reactivity,which also provides a faster hydration rate and higher compressive strength for the cementitious *** the slag milled for 1 and 4 h is mixed at a mass ratio of 2:1 (i e,slag with D_(50) of 7.4μm and average size of 9.9μm,and slag with D_(50) value of 2.6μm and average size of 5.3μm),and a certain amount of fly ash is added in,the most obvious improvement of compressive strength of cement is achieved.