A comparative study of steel reinforced concrete and flax fibre reinforced polymer tube confined coconut fibre reinforced concrete beams

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dc.contributor.author Yan, L en
dc.contributor.author Chouw, Nawawi en
dc.date.accessioned 2018-10-17T02:43:41Z en
dc.date.issued 2013-08 en
dc.identifier.issn 0731-6844 en
dc.identifier.uri http://hdl.handle.net/2292/42509 en
dc.description.abstract This paper experimentally investigates the flexural behaviour of circular steel rebar-coconut fibre reinforced concrete and flax fibre reinforced polymer tube-confined coconut fibre reinforced concrete composite beams. Conventional steel reinforced concrete beam and flax fibre reinforced polymer tube-confined plain concrete were considered as reference. A total of 18 beams were tested under 4-point bending. For flax fibre reinforced polymer-confined concrete specimens, two different tube thicknesses were used, i.e. 2-layers and 4-layers fabric. The effect of coconut fibre inclusion on the flexural behaviour of steel rebar-coconut fibre reinforced concrete and flax fibre reinforced polymer tube confined coconut fibre reinforced concrete beams were evaluated. In addition, the performance of flax fibre reinforced polymer tube-confined plain concrete and flax fibre reinforced polymer tube-confined coconut fibre reinforced concrete composite beams were compared with steel reinforced concrete and steel rebar-coconut fibre reinforced concrete beams. The test results indicate that coir inclusion slightly increased the load-carrying capacity but significantly enhanced the energy absorption of the steel rebar-coconut fibre reinforced concrete beam, compared to the steel reinforced concrete beam. For both flax fibre reinforced polymer-confined plain concrete and coconut fibre reinforced concrete, an increase in tube thickness provides a larger ultimate load, deflection and ductility of the beams. In comparison with the brittle failure of flax fibre reinforced polymer tube-confined plain concrete, coconut fibre inclusion modified the failure modes of flax fibre reinforced polymer tube-confined coconut fibre reinforced concrete to be ductile. The comparative study showed that 4-layer flax fibre reinforced polymer plain concrete and flax fibre reinforced polymer tube-confined coconut fibre reinforced concrete beams experienced lower deflection, higher ultimate load and higher energy absorption than the steel reinforced concrete beam. © 2013 The Author(s). en
dc.relation.ispartofseries Journal of Reinforced Plastics and Composites en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title A comparative study of steel reinforced concrete and flax fibre reinforced polymer tube confined coconut fibre reinforced concrete beams en
dc.type Journal Article en
dc.identifier.doi 10.1177/0731684413487092 en
pubs.issue 16 en
pubs.begin-page 1155 en
pubs.volume 32 en
dc.rights.holder Copyright: The author en
pubs.end-page 1164 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 405648 en
pubs.org-id Engineering en
pubs.org-id Civil and Environmental Eng en
dc.identifier.eissn 1530-7964 en
pubs.record-created-at-source-date 2014-01-07 en


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