Please use this identifier to cite or link to this item: https://scholarhub.balamand.edu.lb/handle/uob/5324
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dc.contributor.authorSaba, Marianneen_US
dc.contributor.authorAssaad, Josephen_US
dc.date.accessioned2022-01-20T07:34:55Z-
dc.date.available2022-01-20T07:34:55Z-
dc.date.issued2021-
dc.identifier.issn09500618-
dc.identifier.urihttps://scholarhub.balamand.edu.lb/handle/uob/5324-
dc.description.abstractMasonry mortar are normally produced using masonry cement complying to EN 413-1 and/or ASTM C91 specifications. The main objective of this paper is to assess the suitability of metakaolin-based geopolymers (GPs) containing recycled fine aggregate (RFA) for masonry applications, including their compliance to relevant standards. Three GP classes proportioned with different metakaolin-to-limestone ratios are tested; the sodium hydroxide and sodium silicate activators contained air entraining molecules to secure about 10% ±2% air content. Test results showed that GP mortars prepared with or without RFA additions exhibited excellent water retentivity, which was related to the viscosity of alkaline solution that increases overall cohesiveness. The bond strengths to existing substrates slightly improved at 20% RFA replacement rates, but then dropped at 40% and 60% rates due to higher liquid demand as well as reduced RFA-modified mortar density. The sorptivity of GP mortars was about 1.5- to 2-times lower than equivalent masonry cement (MC) mixtures, reflecting reduced water permeation that enhances the durability of plaster. The use of GP mortars was found particularly advantageous for masonry applications to speed-up construction operations while, at the same time, eliminate the hassle of moist curing normally required with cement-based plasters.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.subjectGeopolymersen_US
dc.subjectMasonry cementsen_US
dc.subjectMetakaolinen_US
dc.subjectPlastersen_US
dc.subjectRecycled fine aggregateen_US
dc.subjectStrengthen_US
dc.titleEffect of recycled fine aggregates on performance of geopolymer masonry mortarsen_US
dc.typeJournal Articleen_US
dc.identifier.doi10.1016/j.conbuildmat.2021.122461-
dc.identifier.scopus2-s2.0-85100402498-
dc.identifier.urlhttps://api.elsevier.com/content/abstract/scopus_id/85100402498-
dc.contributor.affiliationDepartment of Civil and Environmental Engineeringen_US
dc.contributor.affiliationDepartment of Civil and Environmental Engineeringen_US
dc.description.volume279en_US
dc.date.catalogued2022-01-20-
dc.description.statusPublisheden_US
dc.identifier.ezproxyURLhttp://ezsecureaccess.balamand.edu.lb/login?url=10.1016/j.conbuildmat.2021.122461en_US
dc.relation.ispartoftextConstruction and Building Materialsen_US
crisitem.author.parentorgFaculty of Engineering-
crisitem.author.parentorgFaculty of Engineering-
Appears in Collections:Department of Civil and Environmental Engineering
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