Accelerated swelling of wood for rapid dimensional stability
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Publication Date: | 2022 |
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Format: | Article |
Language: | eng |
Source: | Acta scientiarum. Technology (Online) |
Download full: | http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/60595 |
Summary: | Dimensional stability of wood can be determined by measuring the total swelling percentage between 0% and FSP moisture content according to the ABNT NBR 7190 (Associação Brasileira de Normas Técnicas [ABNT], 1997). Wood dimensional variation by the moisture content modifications must influence both structural elements and connections into timber structures. The wood swelling procedure according to the Brazilian code for saturation of wood samples can take more than a month, but the use of autoclave devices may accelerate this activity, making easier the dimensional stability determination. This paper aims to investigate the possibility of accelerating the wood swelling activity using an autoclave device, considering the Brazilian code for thirteen Brazilian commercial wood species. Contrast test for comparison between accelerated process (Stage 4 – 225 min. at 0.49 MPa pressure) and the conventional procedure for wood swelling resulted in p-value equal to 0.0730 and the average difference between groups about 1.1307% (varying between -0.0541 and 2.3156 with 95% confidence level). According to results, 225 min. at 0.49 MPa pressure provides an equivalent wood swelling compared to the conventional procedure, which can make faster the wood dimensional stability evaluation according to the ABNT NBR 7190 (ABNT, 1997). |
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Accelerated swelling of wood for rapid dimensional stabilityAccelerated swelling of wood for rapid dimensional stabilityaccelerated process; conventional procedure; dimensional stability of wood; wood swelling.accelerated process; conventional procedure; dimensional stability of wood; wood swelling.Dimensional stability of wood can be determined by measuring the total swelling percentage between 0% and FSP moisture content according to the ABNT NBR 7190 (Associação Brasileira de Normas Técnicas [ABNT], 1997). Wood dimensional variation by the moisture content modifications must influence both structural elements and connections into timber structures. The wood swelling procedure according to the Brazilian code for saturation of wood samples can take more than a month, but the use of autoclave devices may accelerate this activity, making easier the dimensional stability determination. This paper aims to investigate the possibility of accelerating the wood swelling activity using an autoclave device, considering the Brazilian code for thirteen Brazilian commercial wood species. Contrast test for comparison between accelerated process (Stage 4 – 225 min. at 0.49 MPa pressure) and the conventional procedure for wood swelling resulted in p-value equal to 0.0730 and the average difference between groups about 1.1307% (varying between -0.0541 and 2.3156 with 95% confidence level). According to results, 225 min. at 0.49 MPa pressure provides an equivalent wood swelling compared to the conventional procedure, which can make faster the wood dimensional stability evaluation according to the ABNT NBR 7190 (ABNT, 1997).Dimensional stability of wood can be determined by measuring the total swelling percentage between 0% and FSP moisture content according to the ABNT NBR 7190 (Associação Brasileira de Normas Técnicas [ABNT], 1997). Wood dimensional variation by the moisture content modifications must influence both structural elements and connections into timber structures. The wood swelling procedure according to the Brazilian code for saturation of wood samples can take more than a month, but the use of autoclave devices may accelerate this activity, making easier the dimensional stability determination. This paper aims to investigate the possibility of accelerating the wood swelling activity using an autoclave device, considering the Brazilian code for thirteen Brazilian commercial wood species. Contrast test for comparison between accelerated process (Stage 4 – 225 min. at 0.49 MPa pressure) and the conventional procedure for wood swelling resulted in p-value equal to 0.0730 and the average difference between groups about 1.1307% (varying between -0.0541 and 2.3156 with 95% confidence level). According to results, 225 min. at 0.49 MPa pressure provides an equivalent wood swelling compared to the conventional procedure, which can make faster the wood dimensional stability evaluation according to the ABNT NBR 7190 (ABNT, 1997).Universidade Estadual De Maringá2022-08-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/6059510.4025/actascitechnol.v45i1.60595Acta Scientiarum. Technology; Vol 45 (2023): Publicação contínua; e60595Acta Scientiarum. Technology; v. 45 (2023): Publicação contínua; e605951806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/60595/751375154709Copyright (c) 2023 Acta Scientiarum. Technologyhttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessAlmeida, Tiago HendrigoIcimoto, Felipe HideyoshiAlmeida, Diego HenriqueAquino, ViniciusChristoforo, André LuisLahr, Francisco Antonio Rocco2023-01-31T19:05:29Zoai:periodicos.uem.br/ojs:article/60595Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2023-01-31T19:05:29Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Accelerated swelling of wood for rapid dimensional stability Accelerated swelling of wood for rapid dimensional stability |
title |
Accelerated swelling of wood for rapid dimensional stability |
spellingShingle |
Accelerated swelling of wood for rapid dimensional stability Almeida, Tiago Hendrigo accelerated process; conventional procedure; dimensional stability of wood; wood swelling. accelerated process; conventional procedure; dimensional stability of wood; wood swelling. |
title_short |
Accelerated swelling of wood for rapid dimensional stability |
title_full |
Accelerated swelling of wood for rapid dimensional stability |
title_fullStr |
Accelerated swelling of wood for rapid dimensional stability |
title_full_unstemmed |
Accelerated swelling of wood for rapid dimensional stability |
title_sort |
Accelerated swelling of wood for rapid dimensional stability |
author |
Almeida, Tiago Hendrigo |
author_facet |
Almeida, Tiago Hendrigo Icimoto, Felipe Hideyoshi Almeida, Diego Henrique Aquino, Vinicius Christoforo, André Luis Lahr, Francisco Antonio Rocco |
author_role |
author |
author2 |
Icimoto, Felipe Hideyoshi Almeida, Diego Henrique Aquino, Vinicius Christoforo, André Luis Lahr, Francisco Antonio Rocco |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Almeida, Tiago Hendrigo Icimoto, Felipe Hideyoshi Almeida, Diego Henrique Aquino, Vinicius Christoforo, André Luis Lahr, Francisco Antonio Rocco |
dc.subject.por.fl_str_mv |
accelerated process; conventional procedure; dimensional stability of wood; wood swelling. accelerated process; conventional procedure; dimensional stability of wood; wood swelling. |
topic |
accelerated process; conventional procedure; dimensional stability of wood; wood swelling. accelerated process; conventional procedure; dimensional stability of wood; wood swelling. |
description |
Dimensional stability of wood can be determined by measuring the total swelling percentage between 0% and FSP moisture content according to the ABNT NBR 7190 (Associação Brasileira de Normas Técnicas [ABNT], 1997). Wood dimensional variation by the moisture content modifications must influence both structural elements and connections into timber structures. The wood swelling procedure according to the Brazilian code for saturation of wood samples can take more than a month, but the use of autoclave devices may accelerate this activity, making easier the dimensional stability determination. This paper aims to investigate the possibility of accelerating the wood swelling activity using an autoclave device, considering the Brazilian code for thirteen Brazilian commercial wood species. Contrast test for comparison between accelerated process (Stage 4 – 225 min. at 0.49 MPa pressure) and the conventional procedure for wood swelling resulted in p-value equal to 0.0730 and the average difference between groups about 1.1307% (varying between -0.0541 and 2.3156 with 95% confidence level). According to results, 225 min. at 0.49 MPa pressure provides an equivalent wood swelling compared to the conventional procedure, which can make faster the wood dimensional stability evaluation according to the ABNT NBR 7190 (ABNT, 1997). |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-08-26 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/60595 10.4025/actascitechnol.v45i1.60595 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/60595 |
identifier_str_mv |
10.4025/actascitechnol.v45i1.60595 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/60595/751375154709 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 Acta Scientiarum. Technology http://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 Acta Scientiarum. Technology http://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Technology; Vol 45 (2023): Publicação contínua; e60595 Acta Scientiarum. Technology; v. 45 (2023): Publicação contínua; e60595 1806-2563 1807-8664 reponame:Acta scientiarum. Technology (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta scientiarum. Technology (Online) |
collection |
Acta scientiarum. Technology (Online) |
repository.name.fl_str_mv |
Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||actatech@uem.br |
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1799315338063511552 |