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A platform for research: civil engineering, architecture and urbanism
Carbon fibre-cement adhesion in carbon fibre reinforced cement composites
AbstractThe addition of small amounts of short carbon fibres to cement causes a great increase in the composite material toughness and tensile, flexural, and impact strength. In order to understand how cement properties are improved by carbon fibres and to understand the level of adhesion and interfacial failure mode which are necessary to obtain optimum carbon fibre reinforced cement (CFRC) properties, various admixtures were included in cement and CFRC. Their effects on the carbon fibre-cement adhesion and the composite material properties were determined using fibre pull-out and composite material flexural tests. The addition of latex to CFRC, and hot water curing of CFRC dramatically increase fibre-matrix adhesion. Both latex (with an anti-foam agent) and hot water curing increase flexural strength by 40% over normal CFRC, and latex increases toughness 100%. Alteration of fibre-matrix adhesion changes the failure mode from fibre pull-out to fibre rupture. Optimum strength and toughness of CFRC result from an intermediate level of fibre-matrix adhesion.
Carbon fibre-cement adhesion in carbon fibre reinforced cement composites
AbstractThe addition of small amounts of short carbon fibres to cement causes a great increase in the composite material toughness and tensile, flexural, and impact strength. In order to understand how cement properties are improved by carbon fibres and to understand the level of adhesion and interfacial failure mode which are necessary to obtain optimum carbon fibre reinforced cement (CFRC) properties, various admixtures were included in cement and CFRC. Their effects on the carbon fibre-cement adhesion and the composite material properties were determined using fibre pull-out and composite material flexural tests. The addition of latex to CFRC, and hot water curing of CFRC dramatically increase fibre-matrix adhesion. Both latex (with an anti-foam agent) and hot water curing increase flexural strength by 40% over normal CFRC, and latex increases toughness 100%. Alteration of fibre-matrix adhesion changes the failure mode from fibre pull-out to fibre rupture. Optimum strength and toughness of CFRC result from an intermediate level of fibre-matrix adhesion.
Carbon fibre-cement adhesion in carbon fibre reinforced cement composites
Larson, B.K. (author) / Drzal, L.T. (author) / Sorousian, P. (author)
Construction and Building Materials ; 5 ; 83-92
1991-01-01
10 pages
Article (Journal)
Electronic Resource
English
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