Please use this identifier to cite or link to this item: https://scholarhub.balamand.edu.lb/handle/uob/1783
DC FieldValueLanguage
dc.contributor.authorMatar, Pierreen_US
dc.contributor.authorAssaad, Josephen_US
dc.date.accessioned2020-12-23T08:59:54Z-
dc.date.available2020-12-23T08:59:54Z-
dc.date.issued2019-
dc.identifier.urihttps://scholarhub.balamand.edu.lb/handle/uob/1783-
dc.description.abstractThe concurrent effects of recycled concrete aggregate (RCA) and polypropylene fibers (PPF) on workability of self-consolidating concrete (SCC) are not quantified in literature. Different SCC series containing 25% to 100% RCA and 0.25% to 1.75% PPF are investigated in this study; the water-to-binder ratio varied from 0.38 to 0.5, while high-range water reducer adjusted to maintain slump flow at 700 ± 25 mm. Flowability, cohesiveness, passing ability, and segregation resistance were evaluated and compared with the limitations specified by the European Guidelines for SCC. Test results have shown that SCC rheological properties and passing ability dramatically curtailed with PPF inclusions, especially when mixtures are proportioned with higher RCA replacement rates. This was attributed to combined effects of fiber additions that hinder the cement matrix deformation together with increased RCA surface roughness that accentuates internal friction and resistance to flow. Mixtures containing increased RCA and PPF concentrations exhibited better stability, reflected by reduced aggregate segregation. Series of regression models were proposed to predict the coupled effects of RCA and PPF additions on SCC workability responses.en_US
dc.format.extent8 p.en_US
dc.language.isoengen_US
dc.subjectWorkabilityen_US
dc.subjectPolypropylene fibersen_US
dc.subjectRecycled Aggregate Concreteen_US
dc.subject.lcshSelf-Consolidating concreteen_US
dc.subject.lcshRheologyen_US
dc.titleConcurrent effects of recycled aggregates and polypropylene fibers on workability and key strength properties of self-consolidating concreteen_US
dc.typeJournal Articleen_US
dc.identifier.doi10.1016/j.conbuildmat.2018.12.091-
dc.contributor.affiliationDepartment of Civil and Environmental Engineeringen_US
dc.description.volume199en_US
dc.description.startpage429en_US
dc.description.endpage500en_US
dc.date.catalogued2020-01-28-
dc.description.statusPublisheden_US
dc.identifier.ezproxyURLhttp://ezsecureaccess.balamand.edu.lb/login?url=https://doi.org/10.1016/j.conbuildmat.2018.12.091en_US
dc.identifier.OlibID248521-
dc.relation.ispartoftextConstruction and building materials journalen_US
dc.provenance.recordsourceOliben_US
Appears in Collections:Department of Civil and Environmental Engineering
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