Performance of cement-based sensors with CNT for strain sensing
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Título: | Performance of cement-based sensors with CNT for strain sensing |
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Autor/es: | Camacho Ballesta, María del Carmen | Zornoza, Emilio | Garcés, Pedro |
Grupo/s de investigación o GITE: | Durabilidad de Materiales y Construcciones en Ingeniería y Arquitectura |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ingeniería Civil |
Palabras clave: | Cement-based sensors | Carbon nanotubes | Strain sensing |
Área/s de conocimiento: | Ingeniería de la Construcción |
Fecha de publicación: | abr-2016 |
Editor: | ICE Publishing |
Cita bibliográfica: | Advances in Cement Research. 2016, 28(4): 274-284. doi:10.1680/adcr.14.00120 |
Resumen: | Strain-sensing functions of Portland cement pastes with different dosages of carbon nanotubes (CNT) are systematically studied. This is one of the relevant functions that multifunctional composites are able to develop when a conductive addition is included in the cement matrix. Strain sensing refers to the ability of a structural material to sense its own condition, such as strain or stress, through the piezoresistive behaviour (change of volume electrical resistivity when it is subjected to a force). CNTs, which possess exceptional electromechanical properties, are considered as a promising addition for practical applications such as structural health and load monitoring. Nevertheless, there is still an important challenge regarding CNT cement composite fabrication: achieving their effective dispersion. This point is addressed by means of a comparison between different physical and chemical dispersion methods. The technique used for that purpose is light-scattering particle size analysis. After selecting the optimal dispersing procedure, the effect on the strain-sensing properties of CNT reinforced cement pastes was studied for the following variables: CNT dosage, curing age, current intensity, loading rate and maximum stress applied. All these parameters are discussed taking gauge factor value as the reference. |
Patrocinador/es: | The authors would like to acknowledge the Spanish Ministry of Science and Innovation (Ref: Mat 2009-10866) and Generalitat Valenciana (PROMETEO/2013/035) for their financial support of this research. |
URI: | http://hdl.handle.net/10045/66042 |
ISSN: | 0951-7197 (Print) | 1751-7605 (Online) |
DOI: | 10.1680/adcr.14.00120 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © ICE Publishing |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1680/adcr.14.00120 |
Aparece en las colecciones: | INV - DMCIA - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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2016_Camacho_etal_AdvCementRes.pdf | 631 kB | Adobe PDF | Abrir Vista previa | |
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