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Effect of aspect ratio on strain sensing capacity of carbon fiber reinforced cement composites
- Source :
- Materials & Design. 51:1085-1094
- Publication Year :
- 2013
- Publisher :
- Elsevier BV, 2013.
-
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. 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.
- Subjects :
- Materials science
Strain (chemistry)
Aspect ratio
Percolation
Electrical resistivity
Cement composites
Carbon fiber reinforced cement composites
Ingeniería del Terreno
Electrical resistivity and conductivity
Carbon fiber
Ingeniería de la Construcción
Composite material
Mecánica de Medios Continuos y Teoría de Estructuras
Subjects
Details
- ISSN :
- 02613069
- Volume :
- 51
- Database :
- OpenAIRE
- Journal :
- Materials & Design
- Accession number :
- edsair.doi.dedup.....d9a22a8ab9f6f15f97c93e2c6fbd9e15