高温养护条件下现代混凝土水化、硬化及微结构形成机理研究进展  

Research Progress on the Hydration,Hardening and Microstructure Formation Mechanism of Modern Concrete under High Temperature Curing Conditions

作　　者：张文华[1] 张云升[2] 

机构地区：[1]南京林业大学土木工程学院,南京210037 [2]东南大学材料科学与工程学院,南京211189

出　　处：《硅酸盐通报》2015年第1期149-155,共7页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金(51308302);东南大学土木工程材料重点试验室开放基金(CM2013-05);高性能土木工程材料国家重点实验室开放基金(2013CEM005);南京林业大学高学历人才基金(GXL2013036);江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：高温养护会使水泥基材料水化过程和内部微结构发生显著变化,但由于现代混凝土组分复杂,其高温养护条件下早期水化、硬化及微结构形成机理仍存在众多疑惑。本文首先对纯水泥浆体在不同养护温度条件下的水化速率、水化程度、水化产物、孔结构、强度发展规律进行了回顾;然后针对现代混凝土掺加多种矿物掺合料的特点,分别对粉煤灰、矿渣、硅灰复合水泥基材料在高温条件下的水化机理进行归纳。High temperature curing makes a significant change on the hydration process and internal microstructure of the cement-based materials. However,there are still many doubts in the early hydration mechanism of modern concrete under high temperature curing since the complexity of modern concrete components. The influence of curing temperature on the cement of hydration rate,hydration degree,hydration products, pore structure, strength developmentwere reviewed firstly. Then,the hydration process of the fly ash,slag,silica fume cement-based composite materials under high temperature conditions areintroduced,respectively.

关 键 词：高温养护 现代混凝土 水化机理 微结构 

分 类 号：TU528[建筑科学—建筑技术科学]