Publicação
Natural durability assessment of thermo-modified young wood of Eucalyptus
| Resumo: | This study focuses on the effect on wood strength and natural durability of Eucalyptus globulus and Eucalyptus botryoides when subjected to heat treatments with low energy consumption. The objective was to improve the wood durability, without negatively impacting the strength properties. Six-year-old trees from Eucalyptus globulus and Eucalyptus botryoides were used. The samples were heat treated for 4 h conditioned to very low oxygen availability. A field test for assessing the resistance to termites and fungal degradation was conducted according to EN 252:1989/ AC1:1989 Inspections were made every six months for 3 years. All the samples of Eucalyptus globulus showed signs of termite and microorganisms attack, most showing extensive galleries. Eucalyptus botryoides wood showed no sign of termite attack and only few traces of microrganisms presence. The wood bending strength was smaller upon thermal treatment for both species, decreasing 3.8% and 4.8% for Eucalyptus globulus and Eucalyptus botryoides, respectively. Overall the results are promising regarding some common utilizations, mainly floor coverings, decks, doors and door and window frames, fences (only for Eucalyptus botryoides), decorative arbors and pergolas (only for Eucalyptus botryoides) but excluding structural beams for building roofs or bridges due to the fragility of the wood treated thermally towards impacts |
|---|---|
| Autores principais: | Knapic, Sofia |
| Outros Autores: | Santos, Joana; Santos, José; Pereira, Helena |
| Assunto: | Eucalyptus botryoides Eucalyptus globulus mechanical properties shrinkage termites wood degradation |
| Ano: | 2018 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório da Universidade de Lisboa |
| _version_ | 1866810954598055936 |
|---|---|
| author | Knapic, Sofia |
| author2 | Santos, Joana Santos, José Pereira, Helena |
| author2_role | author author author |
| author_facet | Knapic, Sofia Santos, Joana Santos, José Pereira, Helena |
| author_role | author |
| contributor_name_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Knapic, Sofia\",\"Person.identifier.orcid\":\"0000-0002-3105-5675\"},{\"Person.name\":\"Santos, Joana\"},{\"Person.name\":\"Santos, José\"},{\"Person.name\":\"Pereira, Helena\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| datacite.creators.creator.creatorName.fl_str_mv | Knapic, Sofia Santos, Joana Santos, José Pereira, Helena |
| datacite.date.Accepted.fl_str_mv | 2018-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2019-01-03T12:30:10Z |
| datacite.date.embargoed.fl_str_mv | 2019-01-03T12:30:10Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Eucalyptus botryoides Eucalyptus globulus mechanical properties shrinkage termites wood degradation |
| datacite.titles.title.fl_str_mv | Natural durability assessment of thermo-modified young wood of Eucalyptus |
| dc.contributor.none.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| dc.creator.none.fl_str_mv | Knapic, Sofia Santos, Joana Santos, José Pereira, Helena |
| dc.date.Accepted.fl_str_mv | 2018-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2019-01-03T12:30:10Z |
| dc.date.embargoed.fl_str_mv | 2019-01-03T12:30:10Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.5/16594 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Universidad del Bio- |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Eucalyptus botryoides Eucalyptus globulus mechanical properties shrinkage termites wood degradation |
| dc.title.fl_str_mv | Natural durability assessment of thermo-modified young wood of Eucalyptus |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | This study focuses on the effect on wood strength and natural durability of Eucalyptus globulus and Eucalyptus botryoides when subjected to heat treatments with low energy consumption. The objective was to improve the wood durability, without negatively impacting the strength properties. Six-year-old trees from Eucalyptus globulus and Eucalyptus botryoides were used. The samples were heat treated for 4 h conditioned to very low oxygen availability. A field test for assessing the resistance to termites and fungal degradation was conducted according to EN 252:1989/ AC1:1989 Inspections were made every six months for 3 years. All the samples of Eucalyptus globulus showed signs of termite and microorganisms attack, most showing extensive galleries. Eucalyptus botryoides wood showed no sign of termite attack and only few traces of microrganisms presence. The wood bending strength was smaller upon thermal treatment for both species, decreasing 3.8% and 4.8% for Eucalyptus globulus and Eucalyptus botryoides, respectively. Overall the results are promising regarding some common utilizations, mainly floor coverings, decks, doors and door and window frames, fences (only for Eucalyptus botryoides), decorative arbors and pergolas (only for Eucalyptus botryoides) but excluding structural beams for building roofs or bridges due to the fragility of the wood treated thermally towards impacts |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ulisboa.pt/bitstreams/980116f1-5972-4aef-b427-6c822e6bd2e4/download |
| id | ul_bb593cb609c7dc5dabb22bc2f9e24fbf |
| identifier.url.fl_str_mv | http://hdl.handle.net/10400.5/16594 |
| instacron_str | ul |
| institution | Universidade de Lisboa |
| instname_str | Universidade de Lisboa |
| language | eng |
| network_acronym_str | ul |
| network_name_str | Repositório da Universidade de Lisboa |
| oai_identifier_str | oai:repositorio.ulisboa.pt:10400.5/16594 |
| organization_str_mv | urn:organizationAcronym:ul |
| person_str_mv | Knapic, Sofia Knapic, Sofia https://www.ciencia-id.pt/D21C-A61D-3E02 D21C-A61D-3E02 http://orcid.org/0000-0002-3105-5675 0000-0002-3105-5675 Santos, Joana Santos, José Pereira, Helena |
| publishDate | 2018 |
| publisher.none.fl_str_mv | Universidad del Bio- |
| reponame_str | Repositório da Universidade de Lisboa |
| repository_id_str | urn:repositoryAcronym:ul |
| service_str_mv | urn:repositoryAcronym:ul |
| spelling | engUniversidad del Bio-pt_PTThis study focuses on the effect on wood strength and natural durability of Eucalyptus globulus and Eucalyptus botryoides when subjected to heat treatments with low energy consumption. The objective was to improve the wood durability, without negatively impacting the strength properties. Six-year-old trees from Eucalyptus globulus and Eucalyptus botryoides were used. The samples were heat treated for 4 h conditioned to very low oxygen availability. A field test for assessing the resistance to termites and fungal degradation was conducted according to EN 252:1989/ AC1:1989 Inspections were made every six months for 3 years. All the samples of Eucalyptus globulus showed signs of termite and microorganisms attack, most showing extensive galleries. Eucalyptus botryoides wood showed no sign of termite attack and only few traces of microrganisms presence. The wood bending strength was smaller upon thermal treatment for both species, decreasing 3.8% and 4.8% for Eucalyptus globulus and Eucalyptus botryoides, respectively. Overall the results are promising regarding some common utilizations, mainly floor coverings, decks, doors and door and window frames, fences (only for Eucalyptus botryoides), decorative arbors and pergolas (only for Eucalyptus botryoides) but excluding structural beams for building roofs or bridges due to the fragility of the wood treated thermally towards impactsapplication/pdfpt_PTNatural durability assessment of thermo-modified young wood of EucalyptusPersonalKnapic, SofiaDSpacehttp://dspace.org/items/6d2fb5f5-41a0-47cf-9a5b-9d37cf5e9fe0DSpacehttp://dspace.org/items/6d2fb5f5-41a0-47cf-9a5b-9d37cf5e9fe0KnapicSofiaCiência IDhttps://www.ciencia-id.ptD21C-A61D-3E02ORCIDhttp://orcid.org0000-0002-3105-5675Santos, JoanaSantos, JoséPereira, HelenaHostingInstitutionOrganizationalRepositório Científico de Acesso Aberto da ULisboae-mailmailto:repositorio@reitoria.ulisboa.ptrepositorio@reitoria.ulisboa.ptDOIIsPartOf10.4067/S0718-221X20180050318012019-01-03T12:30:10Z20182018-01-01T00:00:00ZHandlehttp://hdl.handle.net/10400.5/16594http://purl.org/coar/access_right/c_abf2open accessEucalyptus botryoidesEucalyptus globulusmechanical propertiesshrinkagetermiteswood degradation778043 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorio.ulisboa.pt/bitstreams/980116f1-5972-4aef-b427-6c822e6bd2e4/downloadMaderas. Ciencia y tecnologia |
| spellingShingle | Natural durability assessment of thermo-modified young wood of Eucalyptus Knapic, Sofia Eucalyptus botryoides Eucalyptus globulus mechanical properties shrinkage termites wood degradation |
| status | SINGLETON |
| subject.fl_str_mv | Eucalyptus botryoides Eucalyptus globulus mechanical properties shrinkage termites wood degradation |
| title | Natural durability assessment of thermo-modified young wood of Eucalyptus |
| title_full | Natural durability assessment of thermo-modified young wood of Eucalyptus |
| title_fullStr | Natural durability assessment of thermo-modified young wood of Eucalyptus |
| title_full_unstemmed | Natural durability assessment of thermo-modified young wood of Eucalyptus |
| title_short | Natural durability assessment of thermo-modified young wood of Eucalyptus |
| title_sort | Natural durability assessment of thermo-modified young wood of Eucalyptus |
| topic | Eucalyptus botryoides Eucalyptus globulus mechanical properties shrinkage termites wood degradation |
| topic_facet | Eucalyptus botryoides Eucalyptus globulus mechanical properties shrinkage termites wood degradation |
| url | http://hdl.handle.net/10400.5/16594 |
| visible | 1 |