Journal ArticleDOI
Natural FRP tube confined fibre reinforced concrete under pure axial compression: A comparison with glass/carbon FRP
Libo Yan,Nawawi Chouw +1 more
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TLDR
In this article, a new flax FRP (FFRP) tube confined coir fibre reinforced concrete (CFRC) cylinder is proposed to design a concrete structure with high performance-to-cost ratio.Abstract:
Flax fibre has the potential to replace glass fibre in fibre reinforced polymer (FRP) composite and coir fibre can be used as reinforcement in concrete due to its highest toughness amongst natural fibres. To design a concrete structure with high performance-to-cost ratio, a new flax FRP (FFRP) tube confined coir fibre reinforced concrete (CFRC) cylinder is proposed. The compressive behaviour of FFRP tube confined plain concrete (PC) and confined CFRC is experimentally investigated. Results show that both the proposed cylinders offer high compressive strength and ductility (measured by fracture energy). Coir fibre inclusion with an optimum mass content can further increase the fracture energy of the confined CFRC, compared to the confined PC specimens. Experimental result is compared with the existing glass/carbon FRP (G/CFRP) confined concrete regarding to confinement effectiveness. It shows that the confinement effectiveness of the proposed cylinders is close to or comparable to the G/CFRP confined concrete. This is true despite the tensile strength of FFRP composite, as obtained from flat coupon tensile testing, being significant lower than that of G/CFRP.read more
Citations
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Journal ArticleDOI
A review of recent research on the use of cellulosic fibres, their fibre fabric reinforced cementitious, geo-polymer and polymer composites in civil engineering
TL;DR: In this article, the authors present a review of cellulosic fiber fabrics and their fabric reinforced polymer composites as reinforcement materials within and/or outside of construction materials (e.g. concrete) for civil engineering applications.
Journal ArticleDOI
Effect of alkali treatment on microstructure and mechanical properties of coir fibres, coir fibre reinforced-polymer composites and reinforced-cementitious composites
TL;DR: In this paper, the effect of coir fibres for use as reinforcement materials for polymer and cementitious composites was investigated, and the results showed that the treatment improved the tensile and flexural properties of composites.
Journal ArticleDOI
A Comprehensive Review on Recycled Aggregate and Recycled Aggregate Concrete
TL;DR: In this paper, the authors provide a comprehensive review on recycled aggregate (RA) and recycled aggregate concrete (RAC) regarding their history, recycling, reuse and manufacture process, inherent defects (e.g. existing of additional interfacial transition zones in RAC), and materials properties.
Journal ArticleDOI
Effect of water, seawater and alkaline solution ageing on mechanical properties of flax fabric/epoxy composites used for civil engineering applications
Libo Yan,Nawawi Chouw +1 more
TL;DR: In this paper, the effects of water, seawater and alkaline (5% NaOH) solution ageing conditions on flax fabric reinforced epoxy composites used for civil engineering applications (i.e. as external strengthening and confinement of concrete) were investigated.
Journal ArticleDOI
Influence of jute fiber on concrete properties
TL;DR: In this paper, the authors evaluated the effect of jute fibers on the fresh and hardened properties of concrete cylinders and beams and found that the fiber length and volume had a positive influence on hardened concrete properties at early and extended curing ages, respectively.
References
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Journal ArticleDOI
Design-oriented stress–strain model for FRP-confined concrete
Linda Lam,Jinguang Teng +1 more
TL;DR: In this paper, a new design-oriented stress-strain model is proposed for concrete confined by FRP wraps with fibres only or predominantly in the hoop direction based on a careful interpretation of existing test data and observations.
Journal ArticleDOI
Flax fibre and its composites – A review
TL;DR: In this article, a review of the use of flax fibres as reinforcement in composites has gained popularity due to an increasing requirement for developing sustainable materials, such as glass fibres.
Performance and application of a design-oriented stress-strain model for FRP-confined concrete
X.F. Yuan,L. Lam,Jinguang Teng +2 more
Journal ArticleDOI
Compressive Behavior of Concrete Confined by Carbon Fiber Composite Jackets
TL;DR: In this paper, axial compression test results of 27 concrete cylinders confined by carbon fiber reinforced polymer composite jackets were described, and the failure of the confined concrete was dominated by the rupture of the jacket at an average strain much smaller than the ultimate strain obtained from tension tests of flat coupons.
Book
Fiber-Reinforced Cement Composites
TL;DR: In this article, the basic concepts of mechanical properties of fibers - tension, bending constitutive materials mixture proportions - mixing and casting procedures properties of freshly mixed FRC properties of hardened FRC compression, tension and flexure FRC under impact and fatigue loading creep, shrinkage and long-term performance of FRC plastic drying shrinkage fiber-reinforced shotcrete glass fiber reinforced cement (GFRF) thin sheet products slurry infiltrated fiber concrete (SIFCON).
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