Time-dependent rheological characteristics of self-consolidating concrete containing various mineral admixtures

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dc.contributor.authorSaleh Ahari R.
dc.contributor.authorErdem T.K.
dc.contributor.authorRamyar K.
dc.date.accessioned2019-10-26T21:22:23Z
dc.date.available2019-10-26T21:22:23Z
dc.date.issued2015
dc.departmentEge Üniversitesien_US
dc.description.abstractThe study herein was intended to evaluate the influence of elapsing time on rheological properties and thixotropy of self-consolidating concrete (SCC) mixtures containing various mineral admixtures. For this purpose, variation of T<inf>50</inf> flow time, torque plastic viscosity, apparent yield stress and thixotropy were investigated as a function of time in a standstill condition. Various amounts of silica fume (SF), metakaolin (MK), Class F fly ash (FAF), Class C fly ash (FAC) and granulated blast-furnace slag (BFS) were utilized in binary, ternary and quaternary cementitious blends in 17 different SCC mixtures having a constant slump flow value. The results showed that SCC mixtures containing various mineral admixtures were highly stable or moderately stable (VSI between 0 and 1) at 0 min according to ASTM C 1611. However, mixtures containing FAC, FAF and BFS exhibited some bleeding and segregation at 50 min. In a standstill condition, apparent yield stress and thixotropy increased significantly with time while torque plastic viscosity values changed only in a limited range. In addition, with elapsing time, MK and FAC were found to have more influence on torque plastic viscosity and yield stress values in comparison with the other admixtures. However, increase in the yield values were more pronounced in comparison with the torque plastic viscosity values. Increase in thixotropy with time for the SF and MK blended mixtures were higher when compared to the control mixtures and mixtures containing the other mineral admixtures. © 2015 Elsevier Ltd.en_US
dc.identifier.doi10.1016/j.conbuildmat.2015.04.015
dc.identifier.endpage142en_US
dc.identifier.issn0950-0618
dc.identifier.issn0950-0618en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage134en_US
dc.identifier.urihttps://doi.org/10.1016/j.conbuildmat.2015.04.015
dc.identifier.urihttps://hdl.handle.net/11454/16961
dc.identifier.volume88en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Ltden_US
dc.relation.ispartofConstruction and Building Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectElapsing timeen_US
dc.subjectMineral admixtureen_US
dc.subjectPlastic viscosityen_US
dc.subjectSelf-consolidating concreteen_US
dc.subjectThixotropyen_US
dc.titleTime-dependent rheological characteristics of self-consolidating concrete containing various mineral admixturesen_US
dc.typeArticleen_US

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