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Article: Adding an expansive agent to increase the toughness of steel fibre reinforced concrete
Title | Adding an expansive agent to increase the toughness of steel fibre reinforced concrete |
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Authors | |
Keywords | Compressive behaviour expansive agent (EA) fibre reinforced concrete (FRC) steel fibres (SFs) toughness |
Issue Date | 2019 |
Publisher | Hong Kong Institution of Engineers. The Journal's web site is located at http://www.hkie.org.hk/html/publications/transactions/index.asp |
Citation | Transactions Hong Kong Institution of Engineers
, 2019, v. 26 n. 4, p. 197-208 How to Cite? |
Abstract | Previous research studies have indicated that using fibres to improve crack resistance and applying expansive agent (EA) to compensate shrinkage are both effective methods to mitigate shrinkage cracking of concrete, and the additions of both fibres and EA can enhance the other performance attributes of concrete. In this study, an EA was added to fibre reinforced concrete (FRC) to produce concrete mixes with various water/binder (W/B) ratios, steel fibre (SF) contents and EA contents for testing of their workability and compressive properties. The test results showed that adding EA would
slightly increase the superplasticiser (SP) demand and decrease the compressive strength, Young’s modulus and Poisson’s ratio, but significantly improve the toughness and specific toughness of the steel FRC produced. Such improvement in toughness may be attributed to the pre-stress of the concrete matrix and the confinement effect of the SFs due to the expansion of the concrete and the restraint of the SFs against such expansion. |
Persistent Identifier | http://hdl.handle.net/10722/290541 |
ISSN | 2023 SCImago Journal Rankings: 0.167 |
DC Field | Value | Language |
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dc.contributor.author | Li, LG | - |
dc.contributor.author | Kwan, AKH | - |
dc.date.accessioned | 2020-11-02T05:43:43Z | - |
dc.date.available | 2020-11-02T05:43:43Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Transactions Hong Kong Institution of Engineers , 2019, v. 26 n. 4, p. 197-208 | - |
dc.identifier.issn | 1023-697X | - |
dc.identifier.uri | http://hdl.handle.net/10722/290541 | - |
dc.description.abstract | Previous research studies have indicated that using fibres to improve crack resistance and applying expansive agent (EA) to compensate shrinkage are both effective methods to mitigate shrinkage cracking of concrete, and the additions of both fibres and EA can enhance the other performance attributes of concrete. In this study, an EA was added to fibre reinforced concrete (FRC) to produce concrete mixes with various water/binder (W/B) ratios, steel fibre (SF) contents and EA contents for testing of their workability and compressive properties. The test results showed that adding EA would slightly increase the superplasticiser (SP) demand and decrease the compressive strength, Young’s modulus and Poisson’s ratio, but significantly improve the toughness and specific toughness of the steel FRC produced. Such improvement in toughness may be attributed to the pre-stress of the concrete matrix and the confinement effect of the SFs due to the expansion of the concrete and the restraint of the SFs against such expansion. | - |
dc.language | eng | - |
dc.publisher | Hong Kong Institution of Engineers. The Journal's web site is located at http://www.hkie.org.hk/html/publications/transactions/index.asp | - |
dc.relation.ispartof | Transactions Hong Kong Institution of Engineers | - |
dc.rights | AOM/Preprint Before Accepted: his article has been accepted for publication in [JOURNAL TITLE], published by Taylor & Francis. AOM/Preprint After Accepted: This is an [original manuscript / preprint] of an article published by Taylor & Francis in [JOURNAL TITLE] on [date of publication], available online: http://www.tandfonline.com/[Article DOI]. Accepted Manuscript (AM) i.e. Postprint This is an Accepted Manuscript of an article published by Taylor & Francis in [JOURNAL TITLE] on [date of publication], available online: http://www.tandfonline.com/[Article DOI]. | - |
dc.subject | Compressive behaviour | - |
dc.subject | expansive agent (EA) | - |
dc.subject | fibre reinforced concrete (FRC) | - |
dc.subject | steel fibres (SFs) | - |
dc.subject | toughness | - |
dc.title | Adding an expansive agent to increase the toughness of steel fibre reinforced concrete | - |
dc.type | Article | - |
dc.identifier.email | Kwan, AKH: khkwan@hkucc.hku.hk | - |
dc.identifier.authority | Kwan, AKH=rp00127 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.scopus | eid_2-s2.0-85081238308 | - |
dc.identifier.hkuros | 318221 | - |
dc.identifier.volume | 26 | - |
dc.identifier.issue | 4 | - |
dc.identifier.spage | 197 | - |
dc.identifier.epage | 208 | - |
dc.publisher.place | Hong Kong | - |
dc.identifier.issnl | 1023-697X | - |