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水化硅酸钙微纳结构及超低温稳定性研究进展

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水化硅酸钙(C-S-H)作为普通硅酸盐水泥的主要水化产物,其微纳结构的稳定性对水泥基材料的强度与耐久性具有显著影响.本文综述了C-S-H分子结构和胶体结构在近几十年来的主要研究进展,进一步概述了C-S-H在超低温环境下的微纳结构稳定性、纳米力学性质稳定性及增强策略的相关研究进展,探讨了目前超低温环境下C-S-H结构研究中存在的关键问题,并对未来进一步的研究方向提出展望.
Research Progress on Micro/Nano-structure and Cryogenic Stability of Calcium-Silicate-Hydrate
The stability of the micro/nano-structure of calcium-silicate-hydrate(C-S-H),as the main hydration product of ordinary silicate cement,significantly impacts the strength and durability of cement-based materials.The research progress of C-S-H molecular and colloidal structures in recent decades was reviewed,and the related research progress of micro/nano-structural stability,nano-mechanical property stability,and enhancement strategies of C-S-H under cryogenic environment were further outlined.Several critical issues in the current research of C-S-H structure under cryogenic environments were discussed,and an outlook on further research in this domain was proposed.

calcium-silicatecalcium-hydrate(C-S-H)cryogenic concretemolecular structurecolloidal structurecryogenic stability

朱新平、何倍、汤宇祺、杨振东、蒋正武

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同济大学 先进土木工程材料教育部重点实验室,上海 201804

同济大学 材料科学与工程学院,上海 201804

水化硅酸钙 超低温混凝土 分子结构 胶体结构 超低温稳定性

2024

建筑材料学报
同济大学

建筑材料学报

CSTPCD北大核心
影响因子:1.046
ISSN:1007-9629
年,卷(期):2024.27(12)