Dynamic Compressive Performance of Concrete Exposed to High Temperature Based on Microstructure Analysis

被引：5
|
作者：
Yang, Shao-wei [1 ,2 ]
Liu, Zhi-guo [2 ]
Wang, Yong-wei [2 ]
Liu, Zi-rui [2 ]
Ba, Heng-jing [1 ]
机构：
[1] Harbin Inst Technol, Sch Civil Engn, Harbin 150001, Heilongjiang, Peoples R China
[2] Shandong Prov Acad Bldg Res, Jinan 261000, Peoples R China
来源：
ARCHITECTURE, BUILDING MATERIALS AND ENGINEERING MANAGEMENT, PTS 1-4 | 2013年 / 357-360卷
关键词：
SFRC; SHPB; dynamic compressive performance; HOPKINSON PRESSURE BAR; ELEVATED-TEMPERATURES;
D O I：
10.4028/www.scientific.net/AMM.357-360.1389
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Combined with strain gauge measurement method, the modified split Hopkinson pressure bar was adopted to investigate the behavior of normal concrete and steel fiber reinforcement concrete exposed to 400 degrees C and 800 degrees C under axial impact compressive loading. The experimental results show that compared with normal temperature, the compressive strength and elasticity modulus of normal concrete exposed to 400 degrees C and 800 degrees C decrease obviously. The transformation of concrete exposed to high temperature in microstructure is analyzed by SEM. The influence of high temperature on macro mechanics performance is discussed.
引用
收藏
页码：1389 / +
页数：2
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