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Roles of packing density and slurry film thickness in synergistic effects of metakaolin and silica fume

dc.contributor.authorChu, S.H.
dc.contributor.authorChen, J.J.
dc.contributor.authorLi, L.G.
dc.contributor.authorNG, Pui Lam
dc.contributor.authorKwan, A.K.H.
dc.date.accessioned2023-09-18T20:44:00Z
dc.date.available2023-09-18T20:44:00Z
dc.date.issued2021
dc.identifier.issn0032-5910
dc.identifier.other(SCIDIR_EID)1-s2.0-S0032591021003065
dc.identifier.urihttps://etalpykla.vilniustech.lt/handle/123456789/152159
dc.description.abstractMetakaolin (MK) and silica fume (SF) have been added either individually or in combination to improve concrete performance. Recent studies proved that the combined addition of MK and SF offers synergistic effects, but the mechanism behind is still not unclear. Herein, it is postulated that the synergistic effects arise mainly from the successive filling effects of the MK and SF into voids between larger size particles, which increase the wet packing density (WPD). The present work indicated that the slurry formed of the water and ultrafine particles plays an important role. Good correlation of the workability measures to the slurry film thickness (SFT) revealed the governing factor of SFT for the first time. Moreover, the synergistic effects of MK and SF on the compressive and flexural strengths have been studied based on cementing efficiency and synergistic factors. Correlation of the synergistic factor to the WPD revealed that the WPD plays an important role.eng
dc.formatPDF
dc.format.extentp. 575-583
dc.format.mediumtekstas / txt
dc.language.isoeng
dc.relation.isreferencedbyScopus
dc.relation.isreferencedbyScience Citation Index Expanded (Web of Science)
dc.source.urihttps://www.sciencedirect.com/science/article/pii/S0032591021003065
dc.source.urihttps://doi.org/10.1016/j.powtec.2021.04.029
dc.titleRoles of packing density and slurry film thickness in synergistic effects of metakaolin and silica fume
dc.typeStraipsnis Web of Science DB / Article in Web of Science DB
dcterms.references55
dc.type.pubtypeS1 - Straipsnis Web of Science DB / Web of Science DB article
dc.contributor.institutionThe University of Hong Kong The Chinese University of Hong Kong
dc.contributor.institutionFoshan University
dc.contributor.institutionThe University of Hong Kong Guangdong University of Technology
dc.contributor.institutionThe University of Hong Kong Vilniaus Gedimino technikos universitetas
dc.contributor.institutionThe University of Hong Kong
dc.contributor.facultyStatybos fakultetas / Faculty of Civil Engineering
dc.contributor.departmentStatinių ir tiltų konstrukcijų institutas / Institute of Building and Bridge Structures
dc.subject.researchfieldT 002 - Statybos inžinerija / Construction and engineering
dc.subject.vgtuprioritizedfieldsSD0202 - Aplinką tausojančios statybinės medžiagos ir technologijos / Low emissions building materials and technologies
dc.subject.ltspecializationsL104 - Nauji gamybos procesai, medžiagos ir technologijos / New production processes, materials and technologies
dc.subject.enslurry film thickness
dc.subject.enparticle packing
dc.subject.enwet packing density
dc.subject.enmetakaolin
dc.subject.ensilica fume
dc.subject.ensynergistic effect
dcterms.sourcetitlePowder technology
dc.description.volumevol. 387
dc.publisher.nameElsevier
dc.publisher.cityAmsterdam
dc.identifier.doi1-s2.0-S0032591021003065
dc.identifier.doiS0032-5910(21)00306-5
dc.identifier.doi85105552774
dc.identifier.doi2-s2.0-85105552774
dc.identifier.doi0
dc.identifier.doi000652555300001
dc.identifier.doi10.1016/j.powtec.2021.04.029
dc.identifier.elaba94525649


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