Dynamic compressive behavior of recycled aggregate concrete based on split Hopkinson pressure bar tests

被引：41
|
作者：
Lu, Yubin [1 ]
Chen, Xing [2 ]
Teng, Xiao [2 ]
Zhang, Shu [2 ]
机构：
[1] Southwest Univ Sci & Technol, Minist Educ, Key Lab Testing Technol Mfg Proc, Mianyang 621010, Sichuan, Peoples R China
[2] Southwest Univ Sci & Technol, Sch Mfg Sci & Technol, Mianyang 621010, Sichuan, Peoples R China
来源：
LATIN AMERICAN JOURNAL OF SOLIDS AND STRUCTURES | 2014年 / 11卷 / 01期
关键词：
Recycled coarse aggregate (RCA); recycled aggregate concrete (RAC); split Hopkinson pressure bar tests; compressive strength; strain-rate; STRAIN RATES;
D O I：
10.1590/S1679-78252014000100008
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper presents the experimental results of recycled aggregate concrete (RAC) specimens prepared with five different amount of recycled coarse aggregate (RCA) [i.e. 0, 25%, 50%, 75% and 100%] subjected to compressive loading based on split Hopkinson pressure bar tests. Strain-rate effects on dynamic compressive strength and critical strain of recycled aggregate concrete were studied. Results show that impact properties of recycled aggregate concrete exhibit strong strain-rate dependency, and increase approximately linearly with strain-rate. The transition point from low strain-rate sensitivity to high sensitivity decreases with the increase of matrix strength.
引用
收藏
页码：131 / 141
页数：11
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