Assessment of the Type of Paint on Performance of Rendering Mortars

Detalhes bibliográficos
Autor(a) principal: Baltazar, Luís G.
Data de Publicação: 2023
Outros Autores: Morais, António
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/156141
Resumo: project LA/P/0037/2020 Publisher Copyright: © 2023 by the authors.
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spelling Assessment of the Type of Paint on Performance of Rendering Mortarspaintmoisturerendernatural hydraulic limehydrated limesurface mechanical strengthCivil and Structural EngineeringSafety, Risk, Reliability and Qualityproject LA/P/0037/2020 Publisher Copyright: © 2023 by the authors.The aim of this work is to determine how the mechanical and physical properties of render mortars, in particular their moisture performance, are affected by the application of paint. In this study, three commercial paints, hydro-pliolite-based paint, acrylic paint and silicate paint, were applied as coating layers on render mortars formulated with different binders. The choice of the binders used (hydrated lime, natural hydraulic lime and cement) was related to the functional requirements that the renders have to fulfil according to the type of buildings where they are applied (i.e., new or old buildings). Firstly, the hardness and surface cohesion of the different painted and unpainted renders were analysed in order to investigate the effect of the type of paint on the mechanical strength of the render surface. The influence of the paints on the moisture behaviour of the renders was then investigated using the water capillarity test, the water vapour permeability test and the drying test. The results show that all the paints studied can cause a significant change in the behaviour of the renders in terms of moisture transport phenomena. Nevertheless, it can be concluded that acrylic paint has the greatest resistance to water absorption, but it is also the paint with the higher resistance to water vapour diffusion. Hydro pliolite paint was found to be adequate from the point of view of reducing moisture accumulation and is the most recommended for old buildings with hydrated lime or hydraulic lime-based renders.DEC - Departamento de Engenharia CivilRUNBaltazar, Luís G.Morais, António2023-08-01T22:20:16Z2023-04-242023-04-24T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article15application/pdfhttp://hdl.handle.net/10362/156141eng2673-4109PURE: 67776279https://doi.org/10.3390/civileng4020026info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:38:43Zoai:run.unl.pt:10362/156141Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:56:20.890962Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Assessment of the Type of Paint on Performance of Rendering Mortars
title Assessment of the Type of Paint on Performance of Rendering Mortars
spellingShingle Assessment of the Type of Paint on Performance of Rendering Mortars
Baltazar, Luís G.
paint
moisture
render
natural hydraulic lime
hydrated lime
surface mechanical strength
Civil and Structural Engineering
Safety, Risk, Reliability and Quality
title_short Assessment of the Type of Paint on Performance of Rendering Mortars
title_full Assessment of the Type of Paint on Performance of Rendering Mortars
title_fullStr Assessment of the Type of Paint on Performance of Rendering Mortars
title_full_unstemmed Assessment of the Type of Paint on Performance of Rendering Mortars
title_sort Assessment of the Type of Paint on Performance of Rendering Mortars
author Baltazar, Luís G.
author_facet Baltazar, Luís G.
Morais, António
author_role author
author2 Morais, António
author2_role author
dc.contributor.none.fl_str_mv DEC - Departamento de Engenharia Civil
RUN
dc.contributor.author.fl_str_mv Baltazar, Luís G.
Morais, António
dc.subject.por.fl_str_mv paint
moisture
render
natural hydraulic lime
hydrated lime
surface mechanical strength
Civil and Structural Engineering
Safety, Risk, Reliability and Quality
topic paint
moisture
render
natural hydraulic lime
hydrated lime
surface mechanical strength
Civil and Structural Engineering
Safety, Risk, Reliability and Quality
description project LA/P/0037/2020 Publisher Copyright: © 2023 by the authors.
publishDate 2023
dc.date.none.fl_str_mv 2023-08-01T22:20:16Z
2023-04-24
2023-04-24T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/156141
url http://hdl.handle.net/10362/156141
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2673-4109
PURE: 67776279
https://doi.org/10.3390/civileng4020026
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 15
application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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