Electrical conductivity and piezoresistive properties of cement paste with addition of carbon nanotubes

Abstract

Electrical conductivity and piezoresistive properties of cement paste with addition of carbon nanotubes

Greshkina E.V., Tabagua G.R., Tamov M.M.

Incoming article date: 29.09.2019

Paper presents a review of scientific works investigating of effect of carbon nanotubes (CNT) concentration on electrical conductivity and pizeresistive properties of concrete. Different values of the percolation threshold for nanomodified concrete obtained by different authors are given. Recommendations for specifying the favorable concentration of nanotubes in composites are considered. As a result of review a need for additional dedicated research for the assessment of relation between favorable CNT concentration and their characteristics, method for the producing of composite and conditions of its application is stated.

Keywords: concrete, sensor, carbon nanotubes, percolation threshold, electrical conductivity, monitoring of stress-strain state