27 March 2015 The effect of different surfactants/plastisizers on the electrical behavior of CNT nano-modified cement mortars
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Abstract
Cement-based materials have in general low electrical conductivity. Electrical conductivity is the measure of the ability of the material to resist the passage of electrical current. The addition of a conductive admixture such as Multi-Walled Carbon Nanotubes (MWCNTs) in a cement-based material increases the conductivity of the structure. This research aims to characterize nano-modified cement mortars with MWCNT reinforcements. Such nano-composites would possess smartness and multi-functionality. Multifunctional properties include electrical, thermal and piezo-electric characteristics. One of these properties, the electrical conductivity, was measured using a custom made apparatus that allows application of known D.C. voltage on the nano-composite. In this study, the influence of different surfactants/plasticizers on CNT nano-modified cement mortar specimens with various concentrations of CNTs (0.2% wt. cement CNTs - 0.8% wt. cement CNTs) on the electrical conductivity is assessed.
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P. T. Dalla, P. Alafogianni, I. K. Tragazikis, D. A. Exarchos, K. Dassios, N.-M. Barkoula, T. E. Matikas, "The effect of different surfactants/plastisizers on the electrical behavior of CNT nano-modified cement mortars", Proc. SPIE 9436, Smart Sensor Phenomena, Technology, Networks, and Systems Integration 2015, 94360W (27 March 2015); doi: 10.1117/12.2085501; https://doi.org/10.1117/12.2085501
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