Effect of the steel fibre hook geometry on the flexural properties of high strength steel fibre reinforced concretes under static and impact loading

dc.authorid Yardimci, Mert Yucel/0000-0003-0713-0361
dc.authorscopusid 57191692324
dc.authorscopusid 8396418200
dc.authorscopusid 16029975300
dc.authorwosid Yardimci, Mert Yucel/AAN-8109-2021
dc.authorwosid Yardimci, Mert/AAD-1942-2021
dc.authorwosid aydın, serdar/AAA-2821-2022
dc.contributor.author Kizilirmak, Cengiz
dc.contributor.author Aydin, Serdar
dc.contributor.author Yardimci, Mert Yucel
dc.date.accessioned 2024-05-25T11:25:16Z
dc.date.available 2024-05-25T11:25:16Z
dc.date.issued 2019
dc.department Okan University en_US
dc.department-temp [Kizilirmak, Cengiz; Aydin, Serdar] Dokuz Eylul Univ, Muhendisl Fak, Insaat Muhendisligi Bolumu, TR-35160 Izmir, Turkey; [Yardimci, Mert Yucel] Istanbul Okan Univ, Muhendisl Fak, Insaat Muhendisligi Bolumu, TR-34959 Istanbul, Turkey en_US
dc.description Yardimci, Mert Yucel/0000-0003-0713-0361 en_US
dc.description.abstract In recent years, steel fibre producers have produced new generation steel fibres with high strength and multiple hooked-end geometry (4D and 5D). The studies on the mechanical properties of steel fibre reinforced concretes containing 4D and 5D fibres under the static loading conditions are very limited and there is no published study on the performance of these new generation fibres under flexural impact loading yet. In this study, the effects of the dosage and the aspect (length/diameter) ratio of 4D and 5D fibres on the flexural strength and fracture energy of high strength concrete under static and impact flexural loading conditions have been investigated comparatively with the conventional single-hook-end 3D fibres. The experimental results showed that the flexural strength and the fracture energy of fibre reinforced high strength concrete significantly improved with the increase in the fibre volume, and by using multiple hooks-end steel fibres with sufficiently high tensile strength. For the fibres with aspect ratio of 65, significantly higher flexural strength and fracture energy values have been obtained for 5D hook geometry as compared to conventional 3D fibres, while 4D fibres did not improve these engineering properties probably due to their relatively insufficient fibre strength for this aspect ratio. It has been revealed that the effect of the 4D steel fibre on the mechanical properties of high strength concrete was more pronounced in higher aspect ratio fibres. The increase of fibre aspect ratio for 3D steel fibres negatively affected the fracture energy of concrete. As compared to static loading, 1.4 to 2.6 times higher flexural strength and 1.2 to 3.0 times higher fracture energy values were obtained under impact loading. The best performance under flexural impact loading has been obtained from steel fibre reinforced high strength concretes with 5D fibres having aspect ratio of 65 and 4D fibres having aspect ratio of 80. en_US
dc.identifier.citationcount 2
dc.identifier.doi 10.17341/gazimmfd.570893
dc.identifier.endpage 1627 en_US
dc.identifier.issn 1300-1884
dc.identifier.issn 1304-4915
dc.identifier.issue 3 en_US
dc.identifier.scopus 2-s2.0-85069728146
dc.identifier.scopusquality Q3
dc.identifier.startpage 1610 en_US
dc.identifier.trdizinid 389569
dc.identifier.uri https://doi.org/10.17341/gazimmfd.570893
dc.identifier.uri https://hdl.handle.net/20.500.14517/873
dc.identifier.volume 34 en_US
dc.identifier.wos WOS:000469481500037
dc.identifier.wosquality Q4
dc.language.iso tr
dc.publisher Gazi Univ, Fac Engineering Architecture en_US
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı en_US
dc.rights info:eu-repo/semantics/openAccess en_US
dc.scopus.citedbyCount 3
dc.subject Steel fibre reinforced concrete en_US
dc.subject impact strength en_US
dc.subject steel fibre en_US
dc.subject hook geometry en_US
dc.subject fracture energy en_US
dc.title Effect of the steel fibre hook geometry on the flexural properties of high strength steel fibre reinforced concretes under static and impact loading en_US
dc.type Article en_US
dc.wos.citedbyCount 2

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