Flexural response of hybrid carbon fiber thin cement composites
It is evident that the carbon-fiber-reinforced cementitious composites are being used in the structural and construction works owing to the synergetic action from two components viz. fiber and mortar matrix. Incorporation of a very nominal percentage of carbon fibers into a mortar mixture produces a...
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| Main Authors: | , |
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| Format: | Article |
| Published: |
Elsevier
2011
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| Subjects: | |
| Online Access: | doi:10.1016/j.conbuildmat.2010.07.022 doi:10.1016/j.conbuildmat.2010.07.022 |
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| Summary: | It is evident that the carbon-fiber-reinforced cementitious composites are being used in the structural
and construction works owing to the synergetic action from two components viz. fiber and mortar
matrix. Incorporation of a very nominal percentage of carbon fibers into a mortar mixture produces a
strong and durable composite that leads the product of smart material properties. Flexural behavior of
cement-based matrices carrying carbon fibers reinforcement of different percentage and size is studied
in this paper. Influence of fiber content and length of the fiber is quantified using load–deflection curves.
Specimens containing fiber of 0.0, 0.5, 1.0 and 1.5% with 3 mm (0.12 in.), 6 mm (0.36 in.), and their combination
are prepared and tested. It is demonstrated that combination of 3 mm (0.12 in.) and 6 mm
(0.36 in.) fibers enhances the bearing capacity to crack- and ultimate-stresses as well as the Young’s modulus
of the fiber reinforced cement composites. The paper emphasizes the desired performances after the
initiation of cracks and discusses the pre- and post-cracking load–deflection characteristics of the
composites. |
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