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水化硅酸钙纳米结构研究进展
作者:姚武?何莉??
单位:同济大学?先进土木工程材料教育部重点实验室??
关键词:水化硅酸钙凝胶??纳米结构??凝胶模型?
分类号:O614.231
出版年,卷(期):页码:2010,38(4):754-761
DOI:
摘要:

介绍了水化硅酸钙凝胶(C-S-H)的几种主要结构模型,重点阐述了纳米尺度的凝胶模型及其发展。在纳米凝胶模型中C-S-H是由最小结构单元近似为直径小于5nm的胶束堆积而成。根据胶束堆积密度的差异,C-S-H分为高密度和低密度2种不同的凝胶相。总结了现代微观测试手段对C-S-H纳米模型的验证结果,分析了当前研究存在的问题并对今后研究提出了建议。

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The main structure models of calcium silicate hydrate(C-S-H) gel was introduced,with emphasis on the colloid model as well as its development which constructs at a nanometer scale.In the nanostructural colloid model,the C-S-H gel is packed by the basic building globules with the size of less than 5 nm.These building blocks flocculate to form larger units and microstructures,which are two distinctive gel phrases,named as high density C-S-H and low density C-S-H,respectively.In addition,the research results of modern microscopic experiments,which have verified the authority of colloid model,have been summarized.Finally,some suggestions for the future study in this aspect are also made.

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基金项目:
国家“973”(2009CB623105)资助项目
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参考文献:

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