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发布时间：2019-03-09

论文类型：期刊论文

发表时间：2010-02-01

发表刊物：JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION

收录刊物：ISTIC、EI、SCIE

卷号：25

期号：1

页面范围：147-151

ISSN号：1000-2413

关键字：cement-based material; carbon fiber; carbon black; water content; conductivity; piezoresistivity

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.