Production of eco-efficient earth-based plasters

Detalhes bibliográficos
Autor(a) principal: Santos, Tânia
Data de Publicação: 2017
Outros Autores: Nunes, Lina, Faria, Paulina
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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spelling 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
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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