Prediction of Concrete Pumping Using Various Rheological Models

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dc.contributor.authorChoi, Myoung-Sungko
dc.contributor.authorKim, Young Jinko
dc.contributor.authorKim, Jin-Keunko
dc.date.accessioned2015-01-29T06:58:06Z-
dc.date.available2015-01-29T06:58:06Z-
dc.date.created2014-12-19-
dc.date.created2014-12-19-
dc.date.issued2014-12-
dc.identifier.citationINTERNATIONAL JOURNAL OF CONCRETE STRUCTURES AND MATERIALS, v.8, no.4, pp.269 - 278-
dc.identifier.issn1976-0485-
dc.identifier.urihttp://hdl.handle.net/10203/193798-
dc.description.abstractWhen concrete is being transported through a pipe, the lubrication layer is formed at the interface between concrete and the pipe wall and is the major factor facilitating concrete pumping. A possible mechanism that illustrates to the formation of the layer is the shear-induced particle migration and determining the rheological parameters is a paramount factor to simulate the concrete flow in pipe. In this study, numerical simulations considering various rheological models in the shear-induced particle migration were conducted and compared with 170 m full-scale pumping tests. It was found that the multimodal viscosity model representing concrete as a three-phase suspension consisting of cement paste, sand and gravel can accurately simulate the lubrication layer. Moreover, considering the particle shape effects of concrete constituents with increased intrinsic viscosity can more exactly predict the pipe flow of pumped concrete.-
dc.languageEnglish-
dc.publisherKOREA CONCRETE INST-
dc.subjectINDUCED PARTICLE MIGRATION-
dc.subjectCONCENTRATED SUSPENSIONS-
dc.subjectLUBRICATING LAYER-
dc.subjectCOARSE AGGREGATE-
dc.subjectVISCOSITY-
dc.subjectFLOW-
dc.subjectSPHERES-
dc.titlePrediction of Concrete Pumping Using Various Rheological Models-
dc.typeArticle-
dc.identifier.wosid000344751700001-
dc.identifier.scopusid2-s2.0-84926426736-
dc.type.rimsART-
dc.citation.volume8-
dc.citation.issue4-
dc.citation.beginningpage269-
dc.citation.endingpage278-
dc.citation.publicationnameINTERNATIONAL JOURNAL OF CONCRETE STRUCTURES AND MATERIALS-
dc.identifier.doi10.1007/s40069-014-0084-1-
dc.contributor.localauthorKim, Jin-Keun-
dc.contributor.nonIdAuthorKim, Young Jin-
dc.description.isOpenAccessY-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorconcrete pumping-
dc.subject.keywordAuthorlubrication layer-
dc.subject.keywordAuthorshear-induced particle migration-
dc.subject.keywordAuthormultimodal viscosity model-
dc.subject.keywordAuthorparticle shape-
dc.subject.keywordPlusINDUCED PARTICLE MIGRATION-
dc.subject.keywordPlusCONCENTRATED SUSPENSIONS-
dc.subject.keywordPlusLUBRICATING LAYER-
dc.subject.keywordPlusCOARSE AGGREGATE-
dc.subject.keywordPlusVISCOSITY-
dc.subject.keywordPlusFLOW-
dc.subject.keywordPlusSPHERES-
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