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离子固溶对硅酸三钙结构及性能影响的研究进展
作者:张文生 任雪红 欧阳世翕 
单位:中国建筑材料科学研究总院 绿色建筑材料国家重点实验室 北京 100024 
关键词:硅酸三钙 多晶态 固溶体 化学结构参数 水化 
分类号:TQ172.11
出版年,卷(期):页码:2011,39(10):142-148
DOI:
摘要:

Mg2+、Al3+、Cu2+等离子固溶进入硅酸三钙(3CaO?SiO2,C3S),显著影响了C3S的晶型结构及水化性能。综述了外来离子在C3S中的固溶对C3S多晶态的稳定作用,以及对C3S晶格常数、晶格微应变及水化性能的影响等。从离子的化学结构角度出发,总结分析了离子在C3S中的固溶取代规则。通过提出离子与Ca2+的化学结构差异因子D,量化了离子的化学结构参数与离子在C3S中固溶取代方式和稳定C3S多晶态能力之间的关系。进一步讨论了离子固溶、晶型、缺陷与C3S水化性能之间的复杂关系,并指出当前研究中存在的问题,展望了研究发展方向。

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The incorporation of substituent ions such as Mg2+, Al3+, Cu2+ etc., has considerable effects on the crystal structure and hydration properties of tricalcium silicate (C3S). This paper reviews recent development on the substitution and the effect of foreign ions doping on the polymorphism, lattice parameters, lattice micro-strain and hydration behavior of C3S. The substitution principle based on the chemical structure of ions was summarized. By defining a quantity called structure difference factor D (referred to Ca2+), we evaluated the relationship between the chemical structure parameters of substituent ions and their substitution patterns, and the ability to stablize the higher-temperature forms of C3S. Furthermore, the complex relations among ionic substitution effect, polymorphism, defects and hydration properties were discussed. The problems that were still unsolved were mentioned, and the future investigation was also proposed.

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基金项目:
国家“973”计划(2009CB623101)资助项目
作者简介:
张文生(1969—),男,博士,教授,博士研究生导师
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