Damage in carbon fiber-reinforced concrete, monitored by electrical resistance measurement

被引:123
作者
Bontea, DM [1 ]
Chung, DDL [1 ]
Lee, GC [1 ]
机构
[1] SUNY Buffalo, Dept Mech & Aerosp Engn, Composite Mat Res Lab, Buffalo, NY 14260 USA
基金
美国国家科学基金会;
关键词
microcracking; electrical properties; strain effect; concrete; carbon fibers;
D O I
10.1016/S0008-8846(00)00204-0
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Damage of carbon fiber-reinforced concrete was revealed by an increase in the DC electrical resistance in the stress direction during dynamic compression. Minor damage that did not involve a change in modulus resulted in a partially reversible increase in resistance during loading at a stress above that in prior loading. Major damage that involved a decrease in modulus resulted in resistance increase occurring in every loading cycle irrespective of prior loading and in an irreversible increase in the baseline resistance. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:651 / 659
页数:9
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