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Article: Novel Hybrid Fiber Factor for Hybrid Fiber-Reinforced Concrete

TitleNovel Hybrid Fiber Factor for Hybrid Fiber-Reinforced Concrete
Authors
KeywordsHybrid fiber factor
Hybrid fiber-reinforced concrete (HFRC)
Strain-hardening cementitious composites (SHCC)
Issue Date2021
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/mt.html
Citation
Journal of Materials in Civil Engineering, 2021, v. 33 n. 10, p. article no. 04021278 How to Cite?
AbstractHybrid use of macro and micro steel fibers offers greater potential for enhanced performance of hybrid fiber-reinforced concrete (HFRC). However, predicting the properties of HFRC has been hindered by inadequate research on a suitable hybrid fiber factor, leading to lots of trial and error in the mix design. To fill such a research gap, an experimental program was launched by producing a total of 18 plain and HFRC mixes using macro and micro steel fibers at a constant total fiber volume of 2.0%. Then, the influences of various hybrid fiber combinations on the fresh and hardened properties of HFRC were investigated and correlated by regression analysis to some suggested hybrid fiber factors to identify the key factor governing each performance attribute. It was found that the hybrid use of macro and micro steel fibers at a constant total fiber volume yielded higher workability and strength, and the traditional fiber factor was not applicable to HFRC. Moreover, in the hybrid fiber factors, the fiber number was more fundamental than the fiber volume. Lastly, design equations for predicting the various performance attributes were derived for HFRC with discussions on the associated mechanism.
Persistent Identifierhttp://hdl.handle.net/10722/308075
ISSN
2020 Impact Factor: 3.266
2020 SCImago Journal Rankings: 1.090
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChu, SH-
dc.contributor.authorKwan, AKH-
dc.date.accessioned2021-11-12T13:42:09Z-
dc.date.available2021-11-12T13:42:09Z-
dc.date.issued2021-
dc.identifier.citationJournal of Materials in Civil Engineering, 2021, v. 33 n. 10, p. article no. 04021278-
dc.identifier.issn0899-1561-
dc.identifier.urihttp://hdl.handle.net/10722/308075-
dc.description.abstractHybrid use of macro and micro steel fibers offers greater potential for enhanced performance of hybrid fiber-reinforced concrete (HFRC). However, predicting the properties of HFRC has been hindered by inadequate research on a suitable hybrid fiber factor, leading to lots of trial and error in the mix design. To fill such a research gap, an experimental program was launched by producing a total of 18 plain and HFRC mixes using macro and micro steel fibers at a constant total fiber volume of 2.0%. Then, the influences of various hybrid fiber combinations on the fresh and hardened properties of HFRC were investigated and correlated by regression analysis to some suggested hybrid fiber factors to identify the key factor governing each performance attribute. It was found that the hybrid use of macro and micro steel fibers at a constant total fiber volume yielded higher workability and strength, and the traditional fiber factor was not applicable to HFRC. Moreover, in the hybrid fiber factors, the fiber number was more fundamental than the fiber volume. Lastly, design equations for predicting the various performance attributes were derived for HFRC with discussions on the associated mechanism.-
dc.languageeng-
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/mt.html-
dc.relation.ispartofJournal of Materials in Civil Engineering-
dc.rightsJournal of Materials in Civil Engineering. Copyright © American Society of Civil Engineers.-
dc.rightsThis material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers. This material may be found at [URL/link of abstract in the ASCE Library or Civil Engineering Database].-
dc.subjectHybrid fiber factor-
dc.subjectHybrid fiber-reinforced concrete (HFRC)-
dc.subjectStrain-hardening cementitious composites (SHCC)-
dc.titleNovel Hybrid Fiber Factor for Hybrid Fiber-Reinforced Concrete-
dc.typeArticle-
dc.identifier.emailKwan, AKH: khkwan@hkucc.hku.hk-
dc.identifier.authorityKwan, AKH=rp00127-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1061/(ASCE)MT.1943-5533.0003906-
dc.identifier.hkuros329695-
dc.identifier.volume33-
dc.identifier.issue10-
dc.identifier.spagearticle no. 04021278-
dc.identifier.epagearticle no. 04021278-
dc.identifier.isiWOS:000687225200019-
dc.publisher.placeUnited States-

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