Preparation and Composition Optimization of Low-CO2-Emission Cement Containing Belite, Calcium Sulfoaluminate and Ferrite

摘要：

　　Cement clinker with low CO2 emission was prepared in laboratory, which mainly consist of belite (C2S), calcium sulfoaluminate (C4A3(S)), and ferrite (C4AF).The mineral composition of clinker was optimized for better compressive strength development.The chemical and physical properties of this prepared cement were characterized through X-ray diffraction (XRD), back scattered electron-scanning electron microscopy (BSE-SEM) and differential thermal analysis (DTA).The results reveal that C4A3(S) govems most of the compressive strength at early ages, while C2S contributes to the later strength development.C4AF is in liquid when fired to 1300℃, beneficial to the mass transfer but causing high crystallinity of C2S when excessive.Finally the results of experiments suggest that the optimal composition of clinker is 50wt.% C2S, 40wt.% C4A3(S) and 10wt.% C4AF.

关键词： Cememt Belite Calcium sulfoaluminate Ferrite

作者: Wu Yao Qiao Ling Meng-xue Wu

作者单位: Key Laboratory of Advanced Civil Engineering Materials (Tongji University), Ministry of Education, Shanghai, 201804, China

会议类型: 国际会议

会议名称: The 2016 China Functional Materials Technology and Industry Forum (2016中国国际功能材料大会暨第九届中国功能材料及其应用学术会议)

会议地点: 重庆

会议语种:英文

页码: 1067-1073

在线出版日期: 2016-07-25（万方平台首次上网日期，不代表论文的发表时间）