Utilization of cold bonded fly ash lightweight fine aggregates as a partial substitution of natural fine aggregate in self-compacting mortars

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dc.authorid0000-0002-6731-6718
dc.contributor.authorGuneyisi, Erhan
dc.contributor.authorGesoglu, Mehmet
dc.contributor.authorAltan, Inan
dc.contributor.authorOz, Hatice Oznur
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2015
dc.departmentNiğde ÖHÜ
dc.description.abstractIn this study, lightweight fly ash fine aggregates (LWFAs) were used as a partial replacement of natural fine aggregate to investigate the fresh and hardened states of self-compacting mortars (SCMs). For this, a powder mixture of 90% fly ash (FA) and 10% Portland cement (PC) by weight were pelletized in a tilted pan through a cold-bonded agglomeration process. Thereafter, a total of five mixtures of SCMs were prepared in which natural fine aggregate was replaced by LWFA partially started from 0% to 100% by 25% increment. Subsequently, tests carried out on the fresh mortar involved mini-slump flow, mini-V-funnel flow time and viscosity while the hardened properties of SCMs were evaluated using the compressive strength, ultrasonic pulse velocity, gas permeability and sorptivity tests. The hardened characteristics of SCMs were determined at different ages up to 56 days. It was observed that the increased percentage of LWFA improved the workability and the flowability of SCMs. On the other hand, the strength and permeability properties of SCMs had a negative effect due to the substitution of LWFAs for natural fine aggregate, especially at higher replacement level. (C) 2014 Elsevier Ltd. All rights reserved.
dc.identifier.doi10.1016/j.conbuildmat.2014.10.021
dc.identifier.endpage16
dc.identifier.issn0950-0618
dc.identifier.issn1879-0526
dc.identifier.scopus2-s2.0-84908543627
dc.identifier.scopusqualityQ1
dc.identifier.startpage9
dc.identifier.urihttps://dx.doi.org/10.1016/j.conbuildmat.2014.10.021
dc.identifier.urihttps://hdl.handle.net/11480/3986
dc.identifier.volume74
dc.identifier.wosWOS:000347020200002
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherELSEVIER SCI LTD
dc.relation.ispartofCONSTRUCTION AND BUILDING MATERIALS
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectLightweight aggregate
dc.subjectPermeability
dc.subjectSelf compacting mortar
dc.subjectStrength
dc.subjectWorkability
dc.subjectViscosity
dc.titleUtilization of cold bonded fly ash lightweight fine aggregates as a partial substitution of natural fine aggregate in self-compacting mortars
dc.typeArticle

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