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Comparison of mineralogical, mechanical and hygroscopic characteristic of earthen, gypsum and cement-based plasters

2020-09-10Journal article Restricted access
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dc.contributor.authorSantos, Tânia
dc.contributor.authorGomes, Maria Idália
dc.contributor.authorSilva, António Santos
dc.contributor.authorFerraz, Eduardo
dc.contributor.authorFaria, Paulina
dc.date.accessioned2021-12-22T23:40:32Z
dc.date.available2021-12-22T23:40:32Z
dc.date.issued2020-09-10
dc.date.updated2021-12-22T19:42:44Z
dc.description.abstractIt is important to ensure indoor comfort by passive methods, avoiding mechanical equipment that has energy costs. To assess plasters common efficiency but also its contribution as moisture buffers, five different plastering mortars, including unstabilized and stabilized earth-based plasters, gypsum and cement-based pre-mixed plasters, were analyzed and their chemical, mechanical and hygroscopic characteristics compared. The materials and mortars were analyzed by X-ray diffraction and simultaneous thermal analysis. Linear shrinkage, dry bulk density, dynamic modulus of elasticity, flexural and compressive strengths, dry abrasion resistance, surface cohesion, surface hardness and sorption and desorption of mortars and plasters were also evaluated. The mechanical strength of earthen mortars is lower than gypsum and cement-based mortars. However, earth plasters show the highest hygroscopicity, acting as moisture passive buffers, improving thermal comfort and contributing to occupantś health.pt_PT
dc.description.sponsorshipThis study was supported by Operational Programme Competitiveness and Internationalization (COMPETE 2020), by FEDER funds through the Regional Operational Programs of Lisbon and of Center (Lisbon 2020, Center 2020) and by national funds through the Portuguese Foundation for Science and Technology (FCT) in the scope of the project SAICT/23349/2016: INDEEd – Indoor air quality regulation through the usage of eco-efficient mortars and project PTDC/EPH-PAT/4684/2014: DB-HERITAGE – Database of building materials with historical and heritage interest. Acknowledgments are due to Aldeias de Pedra, Embarro, Secil Argamassas and Sival Companies for providing the materials and pre-mixed mortars.pt_PT
dc.description.sponsorshipCENTRO-01-0145-FEDER-023349
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.conbuildmat.2020.119222pt_PT
dc.identifier.slugcv-prod-1753688
dc.identifier.urihttp://hdl.handle.net/10400.26/38422
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationIndoor air quality regulation through the usage of eco-efficient mortars
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/abs/pii/S0950061820312277pt_PT
dc.subjectAbrasionpt_PT
dc.subjectAir limept_PT
dc.subjectCohesionpt_PT
dc.subjectCompression and flexural strengthpt_PT
dc.subjectLaboratory testingpt_PT
dc.subjectMortarpt_PT
dc.subjectSorptionpt_PT
dc.subjectXRDpt_PT
dc.subjectTGA/DSCpt_PT
dc.titleComparison of mineralogical, mechanical and hygroscopic characteristic of earthen, gypsum and cement-based plasterspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleIndoor air quality regulation through the usage of eco-efficient mortars
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9876 - Politécnicos/SAICT-POL%2F23349%2F2016/PT
oaire.citation.endPage119222pt_PT
oaire.citation.startPage119222pt_PT
oaire.citation.titleConstruction and Building Materialspt_PT
oaire.citation.volume254pt_PT
oaire.fundingStream9876 - Politécnicos
person.familyNameFerraz
person.givenNameEduardo
person.identifier.ciencia-idC517-A240-7C81
person.identifier.orcid0000-0003-4717-6305
person.identifier.ridB-7140-2014
person.identifier.scopus-author-id7003480912
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.cv.cienciaidC517-A240-7C81 | Eduardo Jorge Marques de Oliveira Ferraz
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication94c2590f-fd7a-44e1-b6cd-31297c9da934
relation.isAuthorOfPublication.latestForDiscovery94c2590f-fd7a-44e1-b6cd-31297c9da934
relation.isProjectOfPublication801066d8-81d8-4568-8414-7f2c5f1e246c
relation.isProjectOfPublication.latestForDiscovery801066d8-81d8-4568-8414-7f2c5f1e246c

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