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

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Abstract

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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Authors and Affiliations

  1. School of Civil Engineering, Harbin Institute of Technology, Harbin, 150090, China

    Baoguo Han  (韩宝国), Lingyan Zhang & Jinping Ou  (欧进萍)

  2. School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian, 116024, China

    Jinping Ou  (欧进萍)

Authors
  1. Baoguo Han  (韩宝国)
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  2. Lingyan Zhang
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  3. Jinping Ou  (欧进萍)
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Corresponding author

Correspondence to Jinping Ou  (欧进萍).

Additional information

Funded by the National Natural Science Foundation of China (No. 50238040, 50538020), the Postdoctoral Science Foundation of China (No. 20060390803), and the High-Tech Research and Development Program of China (No. 2002AA335010)

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Han, B., Zhang, L. & Ou, J. Influence of water content on conductivity and piezoresistivity of cement-based material with both carbon fiber and carbon black. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 25, 147–151 (2010). https://doi.org/10.1007/s11595-010-1147-z

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  • DOI: https://doi.org/10.1007/s11595-010-1147-z

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