Research on the hydration, hardening mechanism, and microstructure of high performance expansive concrete
Research on the hydration, hardening mechanism, and microstructure of high performance expansive concrete
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DOI：
10.1016/s0008-8846(99)00084-8
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发表时间：
1999-07
影响因子：
11.4
通讯作者：
Hu Shuguang;Li Yue
中科院分区：
文献类型：
--
作者：
Hu Shuguang;Li Yue
制备了高性能膨胀粉煤灰混凝土(HPEC)，比较了自由养护和约束养护条件下高性能混凝土与HPEC的力学性能差异。利用X射线衍射仪和扫描电子显微镜研究了HPEC的水化过程和微观结构。结果表明，膨胀剂是有效的，约束作用可以改善硬化膨胀混凝土的微观结构。
High performance expansive fly ash concrete (HPEC) was prepared and the differences of mechanical properties between the high performance concrete and HPEC were compared under free- and confined-curing conditions. By means of XRD and SEM methods, the hydration progress and microstructure of HPEC were investigated. The results show that an expansive agent is useful and the confinement action could improve the microstructure of hardened expansive concrete.