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Article: Direct tension behaviour of steel fibre reinforced concrete measured by a new test method

TitleDirect tension behaviour of steel fibre reinforced concrete measured by a new test method
Authors
KeywordsCrack control
Direct tension test
Fibre factor
Fibre reinforced concrete (FRC)
Strain hardening cementitious composites
Issue Date2018
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/engstruct
Citation
Engineering Structures, 2018, v. 176, p. 324-336 How to Cite?
AbstractA new direct tension test method of applying tension to a dumbbell-shaped specimen through side-glued steel plates at the end blocks for measuring the tensile stress-strain characteristics of fibre reinforced concrete (FRC) was developed. Finite element analysis of the test setup revealed substantially reduced stress concentration in the specimen. The new method was applied to test FRC specimens made with four different types of hooked steel fibres. It was found that both the first cracking strength and post cracking strength increased with the fibre volume but at different rates for the different types of steel fibres. From the stress-strain curve, two different values of tensile strain capacity, one defined as the tensile strain at maximum tensile stress and the other defined as the tensile strain at which the tensile stress dropped to 80% of cracking stress, were obtained. Regression analysis of the test results yielded good correlations to the fibre factor and empirical formulas for estimating the minimum fibre factor for strain hardening and the tensile strain capacities.
Persistent Identifierhttp://hdl.handle.net/10722/272875
ISSN
2017 Impact Factor: 2.755
2015 SCImago Journal Rankings: 1.813

 

DC FieldValueLanguage
dc.contributor.authorKwan, AKH-
dc.contributor.authorChu, SH-
dc.date.accessioned2019-08-06T09:18:12Z-
dc.date.available2019-08-06T09:18:12Z-
dc.date.issued2018-
dc.identifier.citationEngineering Structures, 2018, v. 176, p. 324-336-
dc.identifier.issn0141-0296-
dc.identifier.urihttp://hdl.handle.net/10722/272875-
dc.description.abstractA new direct tension test method of applying tension to a dumbbell-shaped specimen through side-glued steel plates at the end blocks for measuring the tensile stress-strain characteristics of fibre reinforced concrete (FRC) was developed. Finite element analysis of the test setup revealed substantially reduced stress concentration in the specimen. The new method was applied to test FRC specimens made with four different types of hooked steel fibres. It was found that both the first cracking strength and post cracking strength increased with the fibre volume but at different rates for the different types of steel fibres. From the stress-strain curve, two different values of tensile strain capacity, one defined as the tensile strain at maximum tensile stress and the other defined as the tensile strain at which the tensile stress dropped to 80% of cracking stress, were obtained. Regression analysis of the test results yielded good correlations to the fibre factor and empirical formulas for estimating the minimum fibre factor for strain hardening and the tensile strain capacities.-
dc.languageeng-
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/engstruct-
dc.relation.ispartofEngineering Structures-
dc.subjectCrack control-
dc.subjectDirect tension test-
dc.subjectFibre factor-
dc.subjectFibre reinforced concrete (FRC)-
dc.subjectStrain hardening cementitious composites-
dc.titleDirect tension behaviour of steel fibre reinforced concrete measured by a new test method-
dc.typeArticle-
dc.identifier.emailKwan, AKH: khkwan@hkucc.hku.hk-
dc.identifier.emailChu, SH: aschu@hku.hk-
dc.identifier.authorityKwan, AKH=rp00127-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.engstruct.2018.09.010-
dc.identifier.scopuseid_2-s2.0-85053397229-
dc.identifier.hkuros300778-
dc.identifier.volume176-
dc.identifier.spage324-
dc.identifier.epage336-
dc.publisher.placeUnited Kingdom-

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