Impact behaviour of nanomodified deflection-hardening fibre-reinforced concretes

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dc.contributor.authorDemirhan, Serhat
dc.contributor.authorYildirim, Gurkan
dc.contributor.authorBanyhussan, Qais Sahib
dc.contributor.authorKoca, Kemal
dc.contributor.authorAnil, Ozgur
dc.contributor.authorErdem, Recep Tugrul
dc.contributor.authorSahmaran, Mustafa
dc.date.accessioned2021-01-14T18:10:25Z
dc.date.available2021-01-14T18:10:25Z
dc.date.issued2020
dc.departmentKKÜ
dc.descriptionErdem, R. Tugrul/0000-0002-8895-7602; Banyhussan, Qais/0000-0002-5927-0633
dc.description.abstractThe behaviour of concrete under sudden impact loads is complex. Moreover, very little is known about the impact behaviour of high-performance fibre-reinforced concretes (HPFRCs). To account for this, nanomodified deflection-hardening HPFRC mixtures incorporating coarse aggregates were produced with three ratios of fly ash to Portland cement (0.0, 0.2 and 0.4), three nanomaterials (nanosilica, nano-alumina and nanocalcite) and two hybridised fibre combinations (hooked-end steel with polyvinyl alcohol, or hooked-end steel with brass-coated microsteel) and tested for basic mechanical properties and flexural impact resistance. After experimental testing, beams used in impact testing were modelled using Abaqus. Cubic compressive strength did not change significantly with the differences in mixture parameters, although this was not the case for flexural parameters. For a given fly ash/Portland cement ratio and nanomaterial type, mixtures with hooked-end steel and polyvinyl alcohol fibres exhibited higher displacement and lower flexural strength capacity than those with hooked-end steel and brass-coated microsteel fibres. Nano-alumina contributed best to the development of mechanical properties and impact resistance of HPFRCs, followed by nanosilica and nanocalcite. Results validate the idea that costly polyvinyl alcohol fibres can be fully replaced with brass-coated microsteel fibres without risking mechanical properties and impact resistance, as long as matrix properties are properly controlled.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1680/jmacr.18.00541
dc.identifier.endpage887en_US
dc.identifier.issn0024-9831
dc.identifier.issn1751-763X
dc.identifier.issue17en_US
dc.identifier.startpage865en_US
dc.identifier.urihttps://doi.org/10.1680/jmacr.18.00541
dc.identifier.urihttps://hdl.handle.net/20.500.12587/12587
dc.identifier.volume72en_US
dc.identifier.wosWOS:000558598500001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherICE PUBLISHINGen_US
dc.relation.ispartofMAGAZINE OF CONCRETE RESEARCH
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectfibre-reinforced concreteen_US
dc.subjectimpacten_US
dc.subjecttensile propertiesen_US
dc.titleImpact behaviour of nanomodified deflection-hardening fibre-reinforced concretesen_US
dc.typeArticle

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