Dissolution and leaching mechanisms of calcium ions in cement based materials

被引：39

作者：

Wang, Xuebing ^{[1
]}

Xu, Kangning ^{[2
]}

Li, Yexue ^{[1
]}

Guo, Shengbo ^{[1
]}

机构：

[1] Hubei Univ Arts & Sci, Sch Civil Engn & Architecture, Xiangyang 441053, Peoples R China

[2] Xiangyang Vocat & Tech Coll, Sch Med, Xiangyang 441021, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 180卷

关键词：

Calcium; Dissolution; Leaching; Mechanism; HYDRATION MECHANISM; PORTLAND-CEMENT; SULFATE ATTACK; CONCRETE; ETTRINGITE; BEHAVIOR; KINETICS; WATER; PASTE; SLAG;

D O I：

10.1016/j.conbuildmat.2018.05.225

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Dissolution and leaching mechanism of the calcium ions in cement based material has an important influence on its service performance. In this paper, the mechanism of the dissolution and leaching process of cement based materials was analyzed. The results showed that early dissolution and leaching behavior of cement-based materials was different with the later period, and therefore this paper was just focus on the early dissolution. At the early period of dissolution and leaching, it was mainly due to the chemical dissolution process by discussing the mechanism of this period; moreover, mathematics mechanism of early dissolution of calcium in cement based materials was determined by using chemical kinetics combined with mathematic calculated, and the chemical mechanism model was then verified by using the literature data. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：103 / 108

页数：6

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