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Quartz Powder Valorisation in White Self-Compacting Concrete: Mortar Level Study

2023Journal article Open access
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dc.contributor.authorMatos, Ana Mafalda
dc.contributor.authorMaia, Lino
dc.contributor.authorCoutinho, Joana Sousa
dc.date.accessioned2024-02-05T14:56:26Z
dc.date.available2024-02-05T14:56:26Z
dc.date.issued2023
dc.description.abstractQuartz powder (QP) from mining exploration has increased, and valorisation solutions are sought. QP incorporation in structural concrete is an exciting strategy for the growth and sustainable development of the concrete industry, waste management and environmental protection. This work addresses the valorisation of QP from a Portuguese company on powder-type self-compacting concrete for architectural and structural purposes, combining the light colour of quartz with white cement. As such, QP was used as a partial cement replacement, acting as a filler on self-compacting white mortars (SCWM) and pastes (SCWP). Firstly, the QP was characterised by chemical, physical and morphological properties. Afterwards, SCWM with 10% of the white Portland cement with QP were produced and, with 10% cement replacement by limestone fillers, commercially available, for comparison purposes. The following engineering properties were evaluated, flowability and viscosity, electrical resistivity, porosity and mechanical strength. In equivalent pastes samples, the heat of hydration was accessed. Finally, an architectonic element prototype was produced using SCWM-QP, and colour and aesthetics were evaluated. All SCWM reached adequate deformability and viscosity for self-compaction. In the hardened state, compressive strength, electrical resistivity and water-permeable porosity presented similar results for mortars incorporating quartz powder and limestone fillers. The isothermal calorimetry in equivalent pastes revealed a slight desacceleration of hydration for SCWP incorporating QP. The major findings of this study confirm the feasibility of SCWM with QP, meeting the required performance while reducing resource depletion in the concrete industry and adding value to a by-product.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMatos, A.M.; Maia, L.; Coutinho, J.S. Quartz Powder Valorisation in White Self-Compacting Concrete: Mortar Level Study. Appl. Sci. 2023, 13, 7652. https://doi.org/ 10.3390/app13137652pt_PT
dc.identifier.doi10.3390/app13137652pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/5528
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationInstitute of R&D in Structures and Construction
dc.relationInstitute of R&D in Structures and Construction
dc.relationCement-based composites shift to Industry 4.0: performance-based mix design methodology, assessment and quality control
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectQuartz powderpt_PT
dc.subjectWaste valorisationpt_PT
dc.subjectWhite cementpt_PT
dc.subjectArchitectonic concretept_PT
dc.subjectSelf-compacting concretept_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titleQuartz Powder Valorisation in White Self-Compacting Concrete: Mortar Level Studypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleInstitute of R&D in Structures and Construction
oaire.awardTitleInstitute of R&D in Structures and Construction
oaire.awardTitleCement-based composites shift to Industry 4.0: performance-based mix design methodology, assessment and quality control
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04708%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04708%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND4ed/2021.01765.CEECIND%2FCP1679%2FCT0004/PT
oaire.citation.issue13pt_PT
oaire.citation.startPage7652pt_PT
oaire.citation.titleApplied Sciencespt_PT
oaire.citation.volume13pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamCEEC IND4ed
person.familyNameSerra Maia
person.givenNameLino Manuel
person.identifierR-000-97W
person.identifier.ciencia-idB711-823E-18C5
person.identifier.orcid0000-0002-6371-0179
person.identifier.scopus-author-id37051068400
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscovery3843bbca-e366-4c2f-ba3a-1b950a201d4b
relation.isProjectOfPublicationabd7f324-6515-4266-9436-ffcb0514f942
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