Dimensional variation of three softwood due to hygroscopic behavior

Detalhes bibliográficos
Autor(a) principal: Silva, Catarina V.
Data de Publicação: 2014
Outros Autores: Branco, Jorge M., Camões, Aires, Lourenço, Paulo B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/28359
Resumo: With the aim of monitor the hygroscopic behavior of three softwood species in situations of changes in its moisture content, an experimental program based on dimensional measurements, hygrometer readings and weightings procedure, was carried out. Maritime Pine (Pinus pinaster), Spruce (Picea abies) and Scots Pine (Pinus sylvestris) specimens were evaluated and compared. For each wood species, half of specimens were previously dried while the other half was previously saturated. Three main variables studied during the period of specimen’s adjustment to an external environment of 20ºC and 57.5% relative humidity (RH) were: mass, dimensional and moisture content variations. Based on the obtained experimental results, the equilibrium moisture content, as well as coefficients of linear shrinkage and expansion, were determined. Experimental results confirmed that besides RH and temperature, the equilibrium moisture content of wood depends on its moisture history. Moreover, using the obtained values it was possible to identify differences between the hygroscopic behavior of the softwood species studied.
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spelling Dimensional variation of three softwood due to hygroscopic behaviorDimensional variationsEquilibrium moisture contentShrikageSwellingShrinkageScience & TechnologyWith the aim of monitor the hygroscopic behavior of three softwood species in situations of changes in its moisture content, an experimental program based on dimensional measurements, hygrometer readings and weightings procedure, was carried out. Maritime Pine (Pinus pinaster), Spruce (Picea abies) and Scots Pine (Pinus sylvestris) specimens were evaluated and compared. For each wood species, half of specimens were previously dried while the other half was previously saturated. Three main variables studied during the period of specimen’s adjustment to an external environment of 20ºC and 57.5% relative humidity (RH) were: mass, dimensional and moisture content variations. Based on the obtained experimental results, the equilibrium moisture content, as well as coefficients of linear shrinkage and expansion, were determined. Experimental results confirmed that besides RH and temperature, the equilibrium moisture content of wood depends on its moisture history. Moreover, using the obtained values it was possible to identify differences between the hygroscopic behavior of the softwood species studied.Fundação para a Ciência e a Tecnologia (FCT)ElsevierUniversidade do MinhoSilva, Catarina V.Branco, Jorge M.Camões, AiresLourenço, Paulo B.2014-032014-03-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/28359eng0950-061810.1016/j.conbuildmat.2014.02.037info: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:RCAAP2023-07-21T11:57:54Zoai:repositorium.sdum.uminho.pt:1822/28359Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:47:35.572639Repositório 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 Dimensional variation of three softwood due to hygroscopic behavior
title Dimensional variation of three softwood due to hygroscopic behavior
spellingShingle Dimensional variation of three softwood due to hygroscopic behavior
Silva, Catarina V.
Dimensional variations
Equilibrium moisture content
Shrikage
Swelling
Shrinkage
Science & Technology
title_short Dimensional variation of three softwood due to hygroscopic behavior
title_full Dimensional variation of three softwood due to hygroscopic behavior
title_fullStr Dimensional variation of three softwood due to hygroscopic behavior
title_full_unstemmed Dimensional variation of three softwood due to hygroscopic behavior
title_sort Dimensional variation of three softwood due to hygroscopic behavior
author Silva, Catarina V.
author_facet Silva, Catarina V.
Branco, Jorge M.
Camões, Aires
Lourenço, Paulo B.
author_role author
author2 Branco, Jorge M.
Camões, Aires
Lourenço, Paulo B.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Silva, Catarina V.
Branco, Jorge M.
Camões, Aires
Lourenço, Paulo B.
dc.subject.por.fl_str_mv Dimensional variations
Equilibrium moisture content
Shrikage
Swelling
Shrinkage
Science & Technology
topic Dimensional variations
Equilibrium moisture content
Shrikage
Swelling
Shrinkage
Science & Technology
description With the aim of monitor the hygroscopic behavior of three softwood species in situations of changes in its moisture content, an experimental program based on dimensional measurements, hygrometer readings and weightings procedure, was carried out. Maritime Pine (Pinus pinaster), Spruce (Picea abies) and Scots Pine (Pinus sylvestris) specimens were evaluated and compared. For each wood species, half of specimens were previously dried while the other half was previously saturated. Three main variables studied during the period of specimen’s adjustment to an external environment of 20ºC and 57.5% relative humidity (RH) were: mass, dimensional and moisture content variations. Based on the obtained experimental results, the equilibrium moisture content, as well as coefficients of linear shrinkage and expansion, were determined. Experimental results confirmed that besides RH and temperature, the equilibrium moisture content of wood depends on its moisture history. Moreover, using the obtained values it was possible to identify differences between the hygroscopic behavior of the softwood species studied.
publishDate 2014
dc.date.none.fl_str_mv 2014-03
2014-03-01T00:00:00Z
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/1822/28359
url http://hdl.handle.net/1822/28359
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0950-0618
10.1016/j.conbuildmat.2014.02.037
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
repository.mail.fl_str_mv
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