Production of eco-efficient earth-based plasters
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10362/28883 |
Resumo: | This work was supported by Fundação para a Ciência e a Tecnologia (FCT) under DB-HERITAGE project (PTDC/EPH-PAT/4684/2014). The authors also acknowledge the EMBARRO Company for supplying the majority of the mortar materials and are grateful to Antonio Santos Silva, Miguel Teixeira, Sandra Noivo, Teresa Gonçalves and Vitor Silva for the support throughout the testing campaign. The support of COST Actions FP1303 “Performance of biobased building materials” and RILEM Technical Committees TCE, “Testing and Characterisation of Earth-based building materials and elements” and HDB, “Hygrothermal behaviour and Durability of Bio-aggregate based building materials”, are also acknowledged. |
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Production of eco-efficient earth-based plastersInfluence of composition on physical performance and bio-susceptibilityAir limeBio-susceptibilityEarth plastering mortarNatural fibrePhase change materialPhysical propertyThis work was supported by Fundação para a Ciência e a Tecnologia (FCT) under DB-HERITAGE project (PTDC/EPH-PAT/4684/2014). The authors also acknowledge the EMBARRO Company for supplying the majority of the mortar materials and are grateful to Antonio Santos Silva, Miguel Teixeira, Sandra Noivo, Teresa Gonçalves and Vitor Silva for the support throughout the testing campaign. The support of COST Actions FP1303 “Performance of biobased building materials” and RILEM Technical Committees TCE, “Testing and Characterisation of Earth-based building materials and elements” and HDB, “Hygrothermal behaviour and Durability of Bio-aggregate based building materials”, are also acknowledged.An experimental campaign was developed to evaluate the properties of earth plastering mortars, not only at the level of workability and physic-mechanical performance but also their susceptibility for biological colonization. A ready-mixed earth mortar and several other mortars formulated with a raw clayish earth were produced. The influence of partial replacement of fine sand by a phase change material (PCM) and the addition of low amounts of oat fibres and hydrated air lime were assessed. The experimental campaign shows that the PCM completely changes the mortar workability, with a decrease on wet density. The addition of PCM and fibres decreases the bulk density and, consequently, increases the porosity of the mortars. The presence of PCM, fibres and air lime decreases the thermal conductivity. Earth mortars are susceptible to mould development, and the fibres or PCM seem to intensify their bio-susceptibility. A low addition of air lime increases pH and inhibits fungal growth though decreasing the mechanical properties. Mortars with PCM, fibres and air lime present a higher surface roughness in comparison to other mortars, including the ready-mixed earth mortar with fibres. Surface roughness was found to be an important factor influencing the level of colonization.DEC - Departamento de Engenharia CivilRUNSantos, TâniaNunes, LinaFaria, Paulina2022-03-17T01:31:07Z20172017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article12application/pdfhttp://hdl.handle.net/10362/28883eng0959-6526PURE: 3071844https://doi.org/10.1016/j.jclepro.2017.08.131info: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:RCAAP2024-03-11T04:15:38Zoai:run.unl.pt:10362/28883Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:29:05.606024Repositório 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 |
Production of eco-efficient earth-based plasters Influence of composition on physical performance and bio-susceptibility |
title |
Production of eco-efficient earth-based plasters |
spellingShingle |
Production of eco-efficient earth-based plasters Santos, Tânia Air lime Bio-susceptibility Earth plastering mortar Natural fibre Phase change material Physical property |
title_short |
Production of eco-efficient earth-based plasters |
title_full |
Production of eco-efficient earth-based plasters |
title_fullStr |
Production of eco-efficient earth-based plasters |
title_full_unstemmed |
Production of eco-efficient earth-based plasters |
title_sort |
Production of eco-efficient earth-based plasters |
author |
Santos, Tânia |
author_facet |
Santos, Tânia Nunes, Lina Faria, Paulina |
author_role |
author |
author2 |
Nunes, Lina Faria, Paulina |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
DEC - Departamento de Engenharia Civil RUN |
dc.contributor.author.fl_str_mv |
Santos, Tânia Nunes, Lina Faria, Paulina |
dc.subject.por.fl_str_mv |
Air lime Bio-susceptibility Earth plastering mortar Natural fibre Phase change material Physical property |
topic |
Air lime Bio-susceptibility Earth plastering mortar Natural fibre Phase change material Physical property |
description |
This work was supported by Fundação para a Ciência e a Tecnologia (FCT) under DB-HERITAGE project (PTDC/EPH-PAT/4684/2014). The authors also acknowledge the EMBARRO Company for supplying the majority of the mortar materials and are grateful to Antonio Santos Silva, Miguel Teixeira, Sandra Noivo, Teresa Gonçalves and Vitor Silva for the support throughout the testing campaign. The support of COST Actions FP1303 “Performance of biobased building materials” and RILEM Technical Committees TCE, “Testing and Characterisation of Earth-based building materials and elements” and HDB, “Hygrothermal behaviour and Durability of Bio-aggregate based building materials”, are also acknowledged. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 2017-01-01T00:00:00Z 2022-03-17T01:31:07Z |
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/10362/28883 |
url |
http://hdl.handle.net/10362/28883 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0959-6526 PURE: 3071844 https://doi.org/10.1016/j.jclepro.2017.08.131 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
12 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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799137916339879936 |