Electrical Resistivity and Piezoresistivity of the Carbon-Nanotube Cement-Based Composite

Ren Juan Sun; Shan Shan Wei; Zhi Qin Zhao; Da Wei Huang; Zhi Ge

doi:10.4028/www.scientific.net/AMM.357-360.990

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 357-360Electrical Resistivity and Piezoresistivity of the...

Electrical Resistivity and Piezoresistivity of the Carbon-Nanotube Cement-Based Composite

Abstract:

This paper studied the electrical resistivity and piezoresistivity of specimen of cement paste made with multiwall carbon nanotubes (MWNTs). The twelve sodium dodecyl benzene sulfonate (SDBS) was used as surfactant. Specimen had a MWNTs to SDBS ratio of 1/4 and contained 0.2% NWNTs by weight. Different dispersal durations, 15min, 30min, 45min, were adopted. The test results show that under the same period of curing, when the dispersal time of MWNTs was 45min, the electrical resistivity of the composite was the biggest and the curve was the varied；with the age growth, the electrical resistivity increased obviously；with the increase of moisture content, the resistivity decreased significantly.

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Periodical:

Applied Mechanics and Materials (Volumes 357-360)

Pages:

990-993

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.357-360.990

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Online since:

August 2013

Authors:

Ren Juan Sun, Shan Shan Wei, Zhi Qin Zhao, Da Wei Huang, Zhi Ge

Keywords:

Age, Carbon Nanotube (CN), Electrical Resistivity, Moisture Content, Piezoresistivity

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