A numerical approach to determine viscosity-dependent segregation in fresh concrete

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dc.authorid0000-0002-2319-0447
dc.contributor.authorBilgil, A
dc.contributor.authorOzturk, B
dc.contributor.authorBilgil, H
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2005
dc.departmentNiğde ÖHÜ
dc.description.abstractIn this study, the mechanism of segregation during the filling of fresh concrete into formwork is numerically investigated. A mathematical model, which considers fresh concrete as a non-Newtonian fluid, is developed. The aggregates are considered as Lagrangian particles whose trajectories determine segregation. Aggregate segregation is partially affected due to concrete viscosity. The study presented here will show the relationship between viscosity and segregation during fill of fresh concrete in formwork. The relationship in between aggregate segregation and viscosity during the fill of fresh concrete for both MC concrete mixture and MCS concrete mixture is investigated. MCS concrete mixture includes superplasticizers for the same composition of MC. Cylindrical formwork (30 cm by 150 cm) is employed. It is found that MC concrete mixture has an aggregate segregation level of 50%, while it reduces to a level of 20% for MCS concrete mixture. The use of superplasticizer reduces aggregate segregation. (C) 2004 Elsevier Inc. All rights reserved.
dc.identifier.doi10.1016/j.amc.2003.12.086
dc.identifier.endpage241
dc.identifier.issn0096-3003
dc.identifier.issue1
dc.identifier.scopus2-s2.0-10444264539
dc.identifier.scopusqualityQ1
dc.identifier.startpage225
dc.identifier.urihttps://dx.doi.org/10.1016/j.amc.2003.12.086
dc.identifier.urihttps://hdl.handle.net/11480/5604
dc.identifier.volume162
dc.identifier.wosWOS:000226859900019
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherELSEVIER SCIENCE INC
dc.relation.ispartofAPPLIED MATHEMATICS AND COMPUTATION
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectconcrete viscosity
dc.subjectflow concrete
dc.subjectaggregate segregation
dc.subjectmathematical modeling
dc.subjectparticle size distribution
dc.titleA numerical approach to determine viscosity-dependent segregation in fresh concrete
dc.typeArticle

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