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Effect of metakaolin utilization ratio and loop method-pre-shearing process variation on rheological properties of cementitious systems having different C3A content

dc.contributor.authorBiricik, Öznur
dc.contributor.authorŞahin, Hatice Gizem
dc.contributor.authorMardani, Ali
dc.contributor.buuauthorBİRİCİK, ÖZNUR
dc.contributor.buuauthorŞahin, Hatice Gizem
dc.contributor.buuauthorMARDANİ, ALİ
dc.contributor.departmentBursa Uludağ Üniversitesi/Mühendislik Fakültesi/İnşaat Mühendisliği Bölümü.
dc.contributor.orcid0000-0002-8915-879X
dc.contributor.orcid0000-0003-0326-5015
dc.contributor.researcheridIAQ-9713-2023
dc.contributor.researcheridJPK-8822-2023
dc.contributor.researcheridAAJ-6415-2021
dc.contributor.researcheridAAE-2420-2022
dc.contributor.researcheridC-7860-2015
dc.date.accessioned2024-09-27T06:30:16Z
dc.date.available2024-09-27T06:30:16Z
dc.date.issued2022-12-17
dc.description.abstractThixotropic behavior, which directly affects the fresh state properties of cementitious systems such as pump -ability, compressibility and hydrostatic mold pressure, is determined by applying the loop method, step change and constant shear rate. This behavior is seriously affected by parameters such as the type, amount and fineness of the binder and the process applied in rheological measurements. In this study, the effect of cement C3A content, metakaolin utilization ratio, resting time of the mixture, pre-shear rate and applying pre-shear rate on the thixotropic behavior of the mixtures at the beginning and 20th-minutes were investigated. For this purpose, 4 types of cement having different C3A contents (2.13%, 3.60%, 6.82% and 9.05%) were used. By testing each of the 4 cements (2.13%, 3.60%, 6.82% and 9.05%) for 5 conditions (no metakaolin, 3%, 6%, 9% and 12% met-akaolin), a total of 20 mixtures were prepared. For each cement type, 0, 3, 6, 9 and 12% of the total binder volume was replaced with metakaolin. The loop method was used to determine the rheological parameters. According to the results, irrespective of all parameters examined, the structural build-up area values were higher than the structural breakdown ones in the mixtures and the structure formation that occurred after 20 min was mostly reversible. It was determined that rheological parameters, structural build-up area value and rate of reversible structure formation increased with the increase in cement C3A content and metakaolin utilization rate. The increase in the initial dynamic yield stress values of the mixtures with the increase of the cement C3A ratio was more pronounced in the case where the measurement is made without waiting immediately after the pre -shear application. The effect of C3A content on dynamic yield stress and viscosity values was more pro-nounced with an increasing pre-shear rate. The opposite was observed for the structural build-up area values.
dc.identifier.doi10.1016/j.cemconcomp.2022.104897
dc.identifier.issn0958-9465
dc.identifier.urihttps://doi.org/10.1016/j.cemconcomp.2022.104897
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0958946522004905?via%3Dihub
dc.identifier.urihttps://hdl.handle.net/11452/45370
dc.identifier.volume136
dc.identifier.wos000934860500001
dc.indexed.wosWOS.SCI
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.bap219M425
dc.relation.bapAYP(MH)-2016/16
dc.relation.bapFAY-2021-579
dc.relation.journalCement & Concrete Composites
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi
dc.relation.tubitakTÜBİTAK
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectSelf-consolidating concrete
dc.subjectMixture design
dc.subjectThixotropy
dc.subjectWater
dc.subjectSuperplasticizers
dc.subjectPerformance
dc.subjectMortar
dc.subjectDurability
dc.subjectPastes
dc.subjectMicrostructure
dc.subjectThixotropy
dc.subjectMetakaolin
dc.subjectLoop method
dc.subjectPre -shear rate
dc.subjectStructural build-up
dc.subjectConstruction & building technology
dc.subjectMaterials science
dc.titleEffect of metakaolin utilization ratio and loop method-pre-shearing process variation on rheological properties of cementitious systems having different C3A content
dc.typeArticle
dspace.entity.typePublication
relation.isAuthorOfPublication3fe6c353-fea9-40b3-ab95-8b84f846a2c0
relation.isAuthorOfPublicationdd2de18c-4ec0-4272-8671-0094502e4353
relation.isAuthorOfPublication.latestForDiscovery3fe6c353-fea9-40b3-ab95-8b84f846a2c0

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