Effect of aspect ratio on strain sensing capacity of carbon fiber reinforced cement composites

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Title: Effect of aspect ratio on strain sensing capacity of carbon fiber reinforced cement composites
Authors: Baeza, F. Javier | Galao Malo, Oscar | Zornoza, Emilio | Garcés, Pedro
Research Group/s: Durabilidad de Materiales y Construcciones en Ingeniería y Arquitectura | Grupo de Ensayo, Simulación y Modelización de Estructuras (GRESMES)
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Civil
Keywords: Carbon fiber reinforced cement composites | Percolation | Carbon fiber | Electrical resistivity | Aspect ratio
Knowledge Area: Mecánica de Medios Continuos y Teoría de Estructuras | Ingeniería del Terreno | Ingeniería de la Construcción
Issue Date: Oct-2013
Publisher: Elsevier
Citation: Materials & Design. 2013, 51: 1085-1094. doi:10.1016/j.matdes.2013.05.010
Abstract: The electrical resistivity of carbon fiber reinforced cement composites (CFRCCs) has been widely studied, because of their utility as multifunctional materials. The percolation phenomenon has also been reported and modeled when the electrical behavior of those materials had to be characterized. Amongst the multiple applications of multifunctional cement composites the ability of a CFRCC to act as a strain sensor is attractive. This paper provides experimental data relating self-sensing function and percolation threshold, and studying the effect of fiber aspect ratio on both phenomena. Higher fiber slenderness permitted percolation at lower carbon fiber addition, affected mechanical properties and improved strain-sensing sensitivity of CFRCC, which was also improved if percolation had not been achieved.
Sponsor: The authors would like to acknowledge financial support received from Ministerio de Ciencia e Innovación (MAT 2009-10866) (Spain). E. Zornoza also thanks Ministerio de Ciencia y Tecnología (Spain) for its post-doctoral support by Juan de la Cierva Program.
URI: http://hdl.handle.net/10045/38680
ISSN: 0264-1275 (Print) | 1873-4197 (Online)
DOI: 10.1016/j.matdes.2013.05.010
Language: eng
Type: info:eu-repo/semantics/article
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.matdes.2013.05.010
Appears in Collections:INV - DMCIA - Artículos de Revistas
INV - GRESMES - Artículos de Revistas

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