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Performance of mortars with commercially-available reactive magnesium oxide as alternative binder

2021-02-16Journal article Open access
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dc.contributor.authorBravo, Miguel
dc.contributor.authorForero, Javier A.
dc.contributor.authorNobre, José
dc.contributor.authorDe Brito, Jorge
dc.contributor.authorEvangelista, Luis
dc.date.accessioned2021-04-28T15:14:10Z
dc.date.available2021-04-28T15:14:10Z
dc.date.issued2021-02-16
dc.description.abstractThis paper intends to analyze the performance of mortars with reactive MgO, as a sustainable alternative to cement. Six different MgOs from Australia, Canada, and Spain were used in the production of mortars as partial substitutes for cement, namely 5%, 10%, 15%, 20%, and 25% (by weight). MgOs with different levels of reactivity were used to analyze its influence on the performance of MgO mortars. In order to evaluate the mechanical performance of these mortars, compressive strength, flexural strength, dynamic modulus of elasticity, and ultrasonic pulse velocity tests were performed. Compressive strength tests showed that the use of 25% reactive MgO can cause a decrease of this property of between 28% and 49%. The use of reactive MgO affected the other mechanical properties less. This paper also intends to analyze the durability performance of mortars with reactive MgO. To that effect, water absorption by capillarity was assessed. In this research, the effect of using MgO on the shrinkage was also analyzed. It was found that shrinkage may decrease by more than a half in some cases.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBRAVO, Miguel; [et al] – Performance of mortars with commercially-available reactive magnesium oxide as alternative binder. Materials. eISSN 1996-1944. Vol. 14, N.º 4 (2021), pp. 1-17pt_PT
dc.identifier.doi10.3390/ma14040938pt_PT
dc.identifier.eissn1996-1944
dc.identifier.urihttp://hdl.handle.net/10400.21/13239
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.subjectMgOpt_PT
dc.subjectReactivitypt_PT
dc.subjectMechanical propertiespt_PT
dc.subjectDurability propertiespt_PT
dc.subjectShrinkagept_PT
dc.subjectAlternative binderpt_PT
dc.titlePerformance of mortars with commercially-available reactive magnesium oxide as alternative binderpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage17pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleMaterialspt_PT
oaire.citation.volume14pt_PT
person.familyNameCaneiras Bravo
person.familyNameCaliço Lopes de Brito
person.familyNameFaria Rocha Evangelista
person.givenNameMiguel Nuno
person.givenNameJorge Manuel
person.givenNameLuís Manuel
person.identifierhttps://scholar.google.pt/citations?user=vhX8t6UAAAAJ&hl=pt-PT
person.identifierA-4299-2008
person.identifierB-9864-2011
person.identifier.ciencia-idC01B-BFA5-7209
person.identifier.ciencia-id921D-3921-8308
person.identifier.ciencia-idA612-1A5B-D93D
person.identifier.orcid0000-0003-0393-4039
person.identifier.orcid0000-0001-6766-2736
person.identifier.orcid0000-0001-8406-6864
person.identifier.scopus-author-id7103121011
person.identifier.scopus-author-id7003285554
person.identifier.scopus-author-id57201241744
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationd33d2bb3-8b86-4aaf-acb9-1c66d9064fd3
relation.isAuthorOfPublicationebc80e57-531a-4fe5-ac87-4d8382b7de2e
relation.isAuthorOfPublication8463f3f2-8bac-44bf-82af-6d46db906c73
relation.isAuthorOfPublication.latestForDiscoveryebc80e57-531a-4fe5-ac87-4d8382b7de2e

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