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Magnesia (MgO) production and characterization, and its influence on the performance of cementitious materials: a review

2020-11Journal article Open access
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dc.contributor.authorNobre, José
dc.contributor.authorHawreen, Ahmed
dc.contributor.authorBravo, Miguel
dc.contributor.authorEvangelista, Luis
dc.contributor.authorDe Brito, Jorge
dc.date.accessioned2020-12-02T11:38:35Z
dc.date.available2020-12-02T11:38:35Z
dc.date.issued2020-11
dc.description.abstractThis paper presents a literature review concerning the characteristics of MgO (magnesium oxide or magnesia) and its application in cementitious materials. It starts with the characterization of MgO in terms of production processes, calcination temperatures, reactivity, and physical properties. Relationships between different MgO characteristics are established. Then, the influence of MgO incorporation on the properties of cementitious materials is investigated. The mechanical strength and durability behaviour of cement pastes, mortars and concrete mixes made with MgO are discussed. The studied properties of MgO-cement mixes include compressive strength, flexural strength, tensile strength, modulus of elasticity, water absorption, porosity, carbonation, chloride ion penetration, shrinkage, expansion, and hydration degree. In addition, microscopic analyses of MgO-cement mixes are also assessed. Summarizing the results of different studies, it is concluded that MgO incorporation in cementitious materials generally decreases the mechanical strength and shrinkage, and increases the porosity, expansion, carbonation and chloride ion migration. However, it should be emphasized that the properties of the specific MgO used (mainly the calcination temperature, the reactivity and the surface area) have a significant influence on the characteristics of the cementitious materials produced.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationNOBRE, José; [et al] – Magnesia (MgO) production and characterization, and its influence on the performance of cementitious materials: a review. Materials. ISSN 1996-1944. Vol. 13, N.º 21 (2020), pp. 1-31pt_PT
dc.identifier.doi10.3390/ma13214752pt_PT
dc.identifier.issn1996-1944
dc.identifier.urihttp://hdl.handle.net/10400.21/12410
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.subjectMagnesium oxidept_PT
dc.subjectReactivitypt_PT
dc.subjectChemical propertiespt_PT
dc.subjectPhysical propertiespt_PT
dc.subjectCementitious materialspt_PT
dc.subjectMechanical propertiespt_PT
dc.subjectDurabilitypt_PT
dc.subjectMicroscopic analysispt_PT
dc.subjectLiterature reviewpt_PT
dc.titleMagnesia (MgO) production and characterization, and its influence on the performance of cementitious materials: a reviewpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage31pt_PT
oaire.citation.issue21pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleMaterialspt_PT
oaire.citation.volume13pt_PT
person.familyNameCaneiras Bravo
person.familyNameFaria Rocha Evangelista
person.familyNameCaliço Lopes de Brito
person.givenNameMiguel Nuno
person.givenNameLuís Manuel
person.givenNameJorge Manuel
person.identifierhttps://scholar.google.pt/citations?user=vhX8t6UAAAAJ&hl=pt-PT
person.identifierB-9864-2011
person.identifierA-4299-2008
person.identifier.ciencia-idC01B-BFA5-7209
person.identifier.ciencia-idA612-1A5B-D93D
person.identifier.ciencia-id921D-3921-8308
person.identifier.orcid0000-0003-0393-4039
person.identifier.orcid0000-0001-8406-6864
person.identifier.orcid0000-0001-6766-2736
person.identifier.scopus-author-id7103121011
person.identifier.scopus-author-id57201241744
person.identifier.scopus-author-id7003285554
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationd33d2bb3-8b86-4aaf-acb9-1c66d9064fd3
relation.isAuthorOfPublication8463f3f2-8bac-44bf-82af-6d46db906c73
relation.isAuthorOfPublicationebc80e57-531a-4fe5-ac87-4d8382b7de2e
relation.isAuthorOfPublication.latestForDiscoveryebc80e57-531a-4fe5-ac87-4d8382b7de2e

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