Effective medium electrical response model of carbon nanotubes cement-based composites

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 an effective medium theory with induced polarization: In this work, a new model based on generalized polarization (GEMTIP) cylindrical inclusions proposed. presented results and discussion show its applicability to interpret impedance spectra cement samples doped multi-walled CNTs (MWCNTs). MWCNTs were dispersed different media: one nonionic surfactant, two superplasticizers, cationic type polycarboxylate ether, anionic naphthalene sulfonate. Particle dispersion their sizes analyzed Ultraviolet–Visible (UV–Vis) spectroscopy, Scanning Electron Microscopy (SEM) measurements. Two electrode measured circuital proposed GEMTIP model. demonstrate efficiency describing Alternating Current (AC) response cement/CNT irrespective dispersant agent used elaborate samples.