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Effect of the Rehydration Method on the Physical–Mechanical Properties of CO2-Cured Magnesium-Based Fiber Cement Boards

2024-03-16Artigo científico Acesso aberto
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dc.contributor.authorAzevedo, Adriano G. S.
dc.contributor.authorMolano, Juan Camilo Adrada
dc.contributor.authorParente, Igor
dc.contributor.authorFreitas, Taís O. G.
dc.contributor.authorCamões, Aires
dc.contributor.authorFaria, Paulina
dc.contributor.authorSavastano, Holmer
dc.contributor.institutionCERIS - Polo NOVA
dc.contributor.institutionDEC - Departamento de Engenharia Civil
dc.contributor.pblMDPI - Multidisciplinary Digital Publishing Institute
dc.date.accessioned2024-04-30T01:48:59Z
dc.date.available2024-04-30T01:48:59Z
dc.date.issued2024-03-16
dc.descriptionThe São Paulo Research Foundation (FAPESP)—Processes: 2021/04780-7, 2022/07179-5, and 2014/50948-3. The CNPQ—Processes: 422701/2021-1 and 402980/2022-0. Publisher Copyright: © 2024 by the authors.
dc.description.abstractThis article analyzes the effect of the rehydration method on the physical–mechanical properties of accelerated carbonation-cured magnesium-based fiber cement boards. The rehydration process of the boards was analyzed in conjunction with the analysis of the pre-curing time before accelerated carbonation (24, 48, and 72 h before carbonation), resulting in eight different curing parameters used in this investigation. The physical–mechanical performance and microstructural characteristics of magnesium oxysulfate boards before and after carbonation were investigated by water absorption, apparent porosity, and bulk density using the four-point bending test, X-ray diffraction, thermogravimetric analysis, and scanning electron microscopy. According to the results, the accelerated carbonation process improved the mechanical properties of the boards. The samples that carbonated after 48 h showed a higher modulus of rupture. The rehydration process of the composites before carbonation led to enhancements in the pre-cured boards for 48 and 72 h, demonstrating that carbonation occurred more effectively after water rehydration. The mechanical improvements were associated with the formation of hydration products, which preferentially formed in the pores and voids of the fiber cement matrix. These carbonation products altered the physical properties of the composites, increasing the density of the boards and reducing the void volume. The decomposition of the formed carbonates was confirmed by thermogravimetric analysis, which indicated that the rehydration process favored the carbonation of the composites.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent18
dc.format.extent4732697
dc.identifier.doi10.3390/civileng5010013
dc.identifier.issn2673-4109
dc.identifier.otherPURE: 87617299
dc.identifier.otherPURE UUID: af5e82f8-6a1d-4c55-b3d9-5712b1f48d12
dc.identifier.otherScopus: 85188839097
dc.identifier.otherORCID: /0000-0003-0372-949X/work/158699065
dc.identifier.urihttp://hdl.handle.net/10362/166759
dc.identifier.urlhttps://www.scopus.com/pages/publications/85188839097
dc.language.isoeng
dc.peerreviewedyes
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04625%2F2020/PT
dc.relationCivil Engineering Research and Innovation for Sustainability
dc.subjectcarbonation
dc.subjectcivil construction
dc.subjectfiber cement boards
dc.subjectMOS cement
dc.subjectrehydration method
dc.subjectCivil and Structural Engineering
dc.subjectSafety, Risk, Reliability and Quality
dc.titleEffect of the Rehydration Method on the Physical–Mechanical Properties of CO2-Cured Magnesium-Based Fiber Cement Boardsen
dc.typejournal article
degois.publication.firstPage247
degois.publication.issue1
degois.publication.lastPage264
degois.publication.titleCivilEng
degois.publication.volume5
dspace.entity.typePublication
oaire.awardNumberUIDB/04625/2020
oaire.awardTitleCivil Engineering Research and Innovation for Sustainability
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04625%2F2020/PT
oaire.fundingStream6817 - DCRRNI ID
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
relation.isProjectOfPublication8372fc65-bc5a-4ddc-94a6-1c8c6a06e922
relation.isProjectOfPublication.latestForDiscovery8372fc65-bc5a-4ddc-94a6-1c8c6a06e922

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