Influence of water content on conductivity and piezoresistivity of cement-based material with both carbon fiber and carbon black

被引：45
作者：
Han Baoguo [1 ]
Zhang Lingyan [1 ]
Ou Jinping [1 ,2 ]
机构：
[1] Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Peoples R China
[2] Dalian Univ Technol, Sch Civil & Hydraul Engn, Dalian 116024, Peoples R China
来源：
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2010年 / 25卷 / 01期
基金：
中国国家自然科学基金;
关键词：
cement-based material; carbon fiber; carbon black; water content; conductivity; piezoresistivity; REINFORCED CEMENT; CONCRETE; STRAIN;
D O I：
10.1007/s11595-010-1147-z
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of water content on the conductivity and piezoresistivity of cement-based material with carbon fiber (CF) and carbon black (CB) was investigated. The piezoresistivity of cement-based material with both CF and CB was compared with that of cement-based material with CF only, and the changes in electrical resistivity of cement-based material with both CF and CB under static and loading conditions in different drying and soaking time were studied. It is found that the piezoresistivity of cement-based material with both CF and CB has better repeatability and linearity than that of cement-based material with CF only. The conductivity and the sensitivity of piezoresistive cement-based material with both CF and CB are enhanced as the water content in piezoresistive cement-based material increases.
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页码：147 / 151
页数：5
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