Multiwalled Carbon Nanotubes Reinforced Portland Cement Composites for Smoke Detection

Prashant Shukla; Vasuda Bhatia; Vikesh Gaur; Rupesh Kumar Basniwal; Budhendra Kumar Singh; Vinod Kumar Jain

doi:10.4028/www.scientific.net/SSP.185.21

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Multiwalled Carbon Nanotubes Reinforced Portland Cement Composites for Smoke Detection

Abstract:

Smoke detection with multiwalled carbon nanotubes (MWCNTs)/cement composites have been studied. Pellets of MWCNTs reinforced Portland cement have been casted with varying MWCNTs %. The DC transient studies depicted an increase in conductivity when exposed to smoke. Responsivity in the range 26-46% has been obtained under smoky environment based on MWCNTs % in the composites. Ionic conductivity increased with frequency at room temperature under ambient and smoky environments. In this paper, we also report fabrication technique of the pellets and the sensing mechanism is explained on the basis of ionic conductivity of the cementitious material in combination with the conductive carbon fibers present in the porous matrix of the cement.

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Periodical:

Solid State Phenomena (Volume 185)

Pages:

21-24

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.185.21

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Online since:

February 2012

Authors:

Prashant Shukla, Vasuda Bhatia, Vikesh Gaur, Rupesh Kumar Basniwal, Budhendra Kumar Singh, Vinod Kumar Jain

Keywords:

Composite, Multi-Walled Carbon Nanotube (MWCNT), Portland Cement, Smoke Detection

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References

[1] W. Zhu, P.J.M. Bartos, A. Porro, Application of Nanotechnology in Construction- Summary of a state-of-the-art report. Mater. Struct. 37 (2004) 649-658.

DOI: 10.1007/bf02483294

Google Scholar

[2] G.Y. Li, P.M. Wang, X. Zhao, Mechanical behavior and microstructure of cement composites incorporating surface-treated multi-walled carbon nanotubes, Carbon 43 (2005) 1239-1245.

DOI: 10.1016/j.carbon.2004.12.017

Google Scholar

[3] S. Wen, D.D.L. Chung, The role of electronic and ionic conduction in the electrical conductivity of carbon fiber reinforced cement, Carbon 44 (2006) 2130-2138.

DOI: 10.1016/j.carbon.2006.03.013

Google Scholar

[4] Ping Xie, Ping Gu, J.J. Beaudoin, Electrical percolation phenomena in cement composites containing conductive fibres, J. Mat. Sci. 31(1996) 4093-4097.

DOI: 10.1007/bf00352673

Google Scholar

[5] P. Shukla, V. Bhatia, V. Gaur, V. K. Jain, Electrostatically Functionalized Multiwalled Carbon Nanotube/ PMMA Composite Thin Films For Organic Vapor Detection, Polym. Plast. Tech. Engg. (Manuscript ID: 574668-In Press).

DOI: 10.1080/03602559.2011.574668

Google Scholar

[6] A.K. Jonscher, The universal, dielectric response Nature 267(1977) 673-679.

Google Scholar

[7] A.K. Jonscher, Universal Relaxation Law, Chelsea Dielectrics Press, London, (1996).

Google Scholar