Water absorption characteristics of cement-based materials based on the chemical reaction

被引：11
作者：
Wang, Xuebing [1 ]
Sun, Mingjun [2 ]
Guo, Shengbo [1 ]
机构：
[1] Hubei Univ Arts & Sci, Sch Civil Engn & Architecture, Xiangyang 441053, Peoples R China
[2] Wuhan Univ Sci & Technol, Sch Mat & Met, Wuhan 430081, Hubei, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2019年 / 220卷
关键词：
Cement-based materials; Underground water; Absorption; Mathematical model; Cement hydrolysis; REINFORCED-CONCRETE; PERMEABILITY; MECHANISM; STRAIN;
D O I：
10.1016/j.conbuildmat.2019.06.064
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
With the development of urban infrastructure, subway and other underground projects are gradually being constructed in various cities. The influence of water absorption on surface of cement-based materials has therefore become more and more important. A mathematical model and the relative experiment of water absorption in cement mortar were investigated. The results showed that the change of radius of pore was decreased and absorption mass fraction was increased with the increased of absorption time. The possibility and direction of reaction during this process were studied, and the result showed that hydrolysis was not merely occurred in this process. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码：607 / 614
页数：8
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