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dc.contributor.authorTriana Camacho, Daniel A.
dc.contributor.authorMiranda, David A.
dc.contributor.authorGarcía Macías, Enrique 
dc.contributor.authorMendoza Reales, Oscar A.
dc.contributor.authorQuintero Orozco, Jorge H.
dc.identifier.citationD.A. Triana-Camacho et al. Effective medium electrical response model of carbon nanotubes cement-based composites. Construction and Building Materials 344 (2022) 128293 []es_ES
dc.description.abstractThe 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.es_ES
dc.description.sponsorshipConsejería de Transformación Económica, Conocimiento, Empresas Universidades de la Junta de Andalucía P18-RT-3128es_ES
dc.description.sponsorshipMinCiencias 82779es_ES
dc.description.sponsorshipPiezoresistividad en Pasta de Cemento con Adición de Nanopartículas de Oro o Materiales Carbonososes_ES
dc.description.sponsorshipUniversidad de Granadaes_ES
dc.description.sponsorshipInstituto Colombiano de Crédito Educativo y Estudios Técnicos en el Exteriores_ES
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.subjectCarbon nanotubeses_ES
dc.subjectCement es_ES
dc.subjectCircuital modeles_ES
dc.subjectDispersant agentses_ES
dc.subjectEffective-medium theoryes_ES
dc.subjectImpedance spectroscopyes_ES
dc.titleEffective medium electrical response model of carbon nanotubes cement-based compositeses_ES

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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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