Influence of moisture content on physical and mechanical properties of Cedrelinga catenaeformis wood

This study aimed to investigate the influence of moisture content variation on 12 mechanical properties of the Cedrelinga catenaeformis species. Of the 12 properties, four were significantly affected (based on analysis of variance at 5% significance level), and the compression and shear strengths in...

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Bibliographic Details
Published in:Bioresources 2021-11, Vol.16 (4), p.6758-6765
Main Authors: Soares, Larissa Soriani Zanini Ribeiro, Fraga, Iuri Fazolin, Paula, Lucimar de Souza e, Arroyo, Felipe Nascimento, Ruthes, Heloiza Candeia, Aquino, Vinícius Borges de Moura, Molina, Júlio Cesar, Panzera, Tulio Hallak, Branco, Luiz Antonio Melgaço Nunes, Christoforo, André Luis, Lahr, Francisco Antonio Rocco
Format: Article
Language:English
Subjects:
Compression
Equilibrium
Experiments
Fibers
Laboratories
Mechanical properties
Moisture content
Physical properties
Variance analysis
Water content
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Summary:This study aimed to investigate the influence of moisture content variation on 12 mechanical properties of the Cedrelinga catenaeformis species. Of the 12 properties, four were significantly affected (based on analysis of variance at 5% significance level), and the compression and shear strengths in the direction parallel to the fibers exhibited the greatest difference in values from the saturated moisture condition of up to 12% (approximately 34% increase). Toughness exhibited a behavior different from that predicted by the normative equation, in which increase in moisture content implied increase (approximately 59%) of the property studied. Because a good part of the properties was not significantly affected and Brazilian standard ABNT NBR 7190 (1997) considers expressions that lead to a considerable increase in mechanical properties with the reduction of moisture content, this approach was unfavorable to the safety of the project, motivating the development of other studies to collaborate in revisions of this normative document.
ISSN:1930-2126
1930-2126
DOI:10.15376/biores.16.4.6758-6765