Hydration study of slag-blended cement based on thermodynamic considerations

被引：54
|
作者：
Elakneswaran, Yogarajah [1 ]
Owaki, Eiji [2 ]
Miyahara, Shigeyoshi [2 ]
Ogino, Masataka [2 ]
Maruya, Tsuyoshi [2 ]
Nawa, Toyoharu [1 ]
机构：
[1] Hokkaido Univ, Fac Engn, Div Sustainable Resources Engn, Kita Ku, Kita 13,Nishi 8, Sapporo, Hokkaido 0608628, Japan
[2] Taisei Corp, Ctr Technol, Civil Engn Res Inst, Civil Struct & Mat Res Sect,Totsuka Ku, 344-1 Nase Cho, Yokohama, Kanagawa 2450051, Japan
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 124卷
关键词：
Thermodynamic calculations; Slag-blended cement; Hydration products; Pore solution; PHREEQC; BLAST-FURNACE SLAG; PORTLAND-CEMENT; STRENGTH DEVELOPMENT; TEMPERATURE; LIMESTONE; MODEL;
D O I：
10.1016/j.conbuildmat.2016.07.138
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Thermodynamic calculations, using the geochemical code PHREEQC coupled with empirical equations for kinetics of cement hydration and slag reaction, were carried out to predict the compositions of the hydrate assemblage and pore solutions of hydrating Portland cement and cement blended with slag and the blended cement containing limestone. The predicted compositions of hydration products and element concentrations in pore solutions compared well with experimental data reported in literature. The calculation results showed the varying Ca/Si and Al/Si ratios of calcium aluminosilicate hydrate (C-A-S-H)(1) in the hydration products due to hydration and slag addition. Limitations on the equation for reaction of slag and the importance of a C-A-S-H solid solution model in prediction of hydration products are discussed. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：615 / 625
页数：11
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