THE PROPERTIES AND HYDRATION OF PORTLAND CEMENT CONTAINING CALCIUM SULFOALUMINATE CEMENT

被引：15
|
作者：
Li, Weifeng [1 ]
Yu, Jin [1 ]
Ma, Suhua [1 ]
Hu, Yueyang [1 ]
Ge, Dashun [1 ]
Shen, Xiaodong [1 ,2 ]
机构：
[1] Nanjing Tech Univ, Coll Mat Sci & Engn, Nanjing 210009, Jiangsu, Peoples R China
[2] Key Lab Mat Oriented Chem Engn, Nanjing, Jiangsu, Peoples R China
来源：
CERAMICS-SILIKATY | 2018年 / 62卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Portland cement; Calcium sulfoaluminate cement; Physical properties; Hydration kinetics; CRYSTAL-STRUCTURE; TRICALCIUM ALUMINATE; OPC; PARAMETERS;
D O I：
10.13168/cs.2018.0032
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Calcium sulfoaluminate (CSA) cement has some attractive qualities, such as rapid setting, high early strength, and microexpansion. It was commonly used to improve properties of Portland cement (PC). In this paper, the investigated results show that the setting times are notably reduced as the CSA cement content is increased. The compressive strength is slightly lower for the PC-CSA blends containing less than 10 % CSA cement, but notably lower for the PC-CSA blend containing 20 % CSA cement when compared to PC. High amounts of (SSA cement significantly delay the hydration of alite, thereby increasing the porosity. Furthermore, the addition of CSA cement changes the ettringite morphologry.
引用
收藏
页码：364 / 373
页数：10
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