Traps in the chemistry of cement

被引：0
|
作者：
Kurdowski, Wieslaw [1 ]
Kadzielawski, Grzegorz [1 ]
机构：
[1] Politechn Slqska, Katedra Konstruk Budowlanych, Gliwice, Poland
来源：
CEMENT WAPNO BETON | 2018年 / 23卷 / 04期
关键词：
expansion of free lime; lack of ettringite expansion; water uptake from C-S-H phase; topochemical reactions; topotactic reactions;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In the paper some problems of cement chemistry which have no scientific basis was discussed. There are the problems concerning the hydration of cement, which are concerning the expansion of cement paste, despite that the clinker anhydrous phases reactions with water is always linked with contraction i.e. the decrease of the total volume of the products. From this discussion it is evident that, despite of the important progress of scientific equipment, the scientific basis explaining these problems was not elaborated till to day. It can be stated, that as explanation the process occurring in the small volume - "in situ" still remains as well as the osmotic pressure. However, the significant progress can be observed relative to ettringite, where among others the importance of Ca(OH)(2) content in cement for ettringite expansion was found.
引用
收藏
页码：333 / +
页数：9
相关论文
共 50 条
12345