Mechanical properties of steel fiber reinforced reactive powder concrete following exposure to high temperature reaching 800°C

被引：263
作者：
Tai, Yuh-Shiou [1 ]
Pan, Huang-Hsing [2 ]
Kung, Ying-Nien [2 ]
机构：
[1] ROC Mil Acad, Dept Civil Engn, Kaohsiung, Taiwan
[2] Kaohsiung Univ Appl Sci, Dept Civil Engn, Kaohsiung, Taiwan
来源：
NUCLEAR ENGINEERING AND DESIGN | 2011年 / 241卷 / 07期
关键词：
COMPRESSIVE BEHAVIOR; PERFORMANCE; STRENGTH; STRESS;
D O I：
10.1016/j.nucengdes.2011.04.008
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
This study investigates the stress-strain relation of RPC in quasi-static loading after an elevated temperature. The cylinder specimens of RPC with phi 50 mm x 100 mm are examined at the room temperature and after 200-800 degrees C. Experimental results indicate that the residual compressive strength of RPC after heating from 200-300 degrees C increases more than that at room temperature, but, significantly decreases when the temperature exceeds 300 degrees C. The residual peak strains of RPC also initially increase up to 400-500 degrees C, then decrease gradually beyond 500 degrees C. Meanwhile, Young's modulus diminishes with an increasing temperature. Based on the regression analysis results, this study also develops regression formulae to estimate the mechanical properties of RPC after an elevated temperature, thus providing a valuable reference for industrial applications and design. (C) 2011 Elsevier B.V. All rights reserved.
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收藏
页码：2416 / 2424
页数：9
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