@misc{10481/76330,
year = {2022},
month = {7},
url = {http://hdl.handle.net/10481/76330},
abstract = {The electrical properties of carbon nanotubes (CNT) cement-based composites have been modeled in previous
works by circuit models or homogenization theories. An alternative approach is the use of an effective medium
theory with induced polarization: In this work, a new model based on the generalized effective medium theory
of induced polarization (GEMTIP) with cylindrical inclusions is proposed. The presented results and discussion
show its applicability to interpret the electrical impedance spectra of cylindrical cement samples doped with
multi-walled CNTs (MWCNTs). The MWCNTs were dispersed in different media: one nonionic surfactant, two
superplasticizers, a cationic type polycarboxylate ether, and an anionic type naphthalene sulfonate. Particle
dispersion and their sizes were analyzed by Ultraviolet–Visible (UV–Vis) spectroscopy, and Scanning Electron
Microscopy (SEM) measurements. Two electrode electrical impedance spectra were measured and analyzed by
circuital models and the proposed GEMTIP model. The results demonstrate the efficiency of the proposed model
in describing the Alternating Current (AC) response of cement/CNT composites irrespective of the dispersant
agent used to elaborate the samples.},
organization = {CBUA},
organization = {Consejería de Transformación Económica, Conocimiento, Empresas Universidades de la Junta de Andalucía
	P18-RT-3128},
organization = {MinCiencias
	82779},
organization = {Piezoresistividad en Pasta de Cemento con Adición de Nanopartículas de Oro o Materiales Carbonosos},
organization = {Universidad de Granada},
organization = {Instituto Colombiano de Crédito Educativo y Estudios Técnicos en el Exterior},
publisher = {Elsevier},
keywords = {Carbon nanotubes},
keywords = {Cement},
keywords = {Circuital model},
keywords = {Dispersant agents},
keywords = {Effective-medium theory},
keywords = {Impedance spectroscopy},
title = {Effective medium electrical response model of carbon nanotubes cement-based composites},
doi = {10.1016/j.conbuildmat.2022.128293},
author = {Triana Camacho, Daniel A. and Miranda, David A. and García Macías, Enrique and Mendoza Reales, Oscar A. and Quintero Orozco, Jorge H.},
}