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

被引：6

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

页码：1389 / +

页数：2

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