SciELO - Scientific Electronic Library Online

 
vol.36 número2Propriedades energéticas da madeira e do carvão de paricá (Schizolobium amazonicum)Avaliação da utilização de composto orgânico produzido a partir dos resíduos de fábrica de celulose quanto aos níveis de organoclorados e metais índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Artigo

Indicadores

Links relacionados

  • Não possue artigos similaresSimilares em SciELO

Compartilhar


Revista Árvore

versão impressa ISSN 0100-6762

Resumo

MARQUES, Sinval dos Santos et al. Specific gravity and shrinkage of Pernambuco wood (Caesalpinia echinata LAM.). Rev. Árvore [online]. 2012, vol.36, n.2, pp. 373-380. ISSN 0100-6762.  http://dx.doi.org/10.1590/S0100-67622012000200019.

Among physical properties of the wood, specific gravity and shrinkage are the most important characteristics to evaluate the wood quality and indication to several uses. Apparent specific gravity or density is an important physical characteristic that is related with shrinkage and others characteristics asthe mechanical and anatomical properties of the wood. Shrinkage is also an important characteristic because it determines as wood dimensional stability which is an important property for several uses in which wood should not present excessive contraction when being used. Thus, the objective of this study was to compare the specific gravity and shrinkage of Pernambuco wood (Caesalpinia echinata) from natural areas and reforestation at the ages of 10, 15, 20, 25 and 30 years . This study followed the Brazilian Method 26/1940 of Brazilian Associations of Technical Standard. The results indicate that there was variation in the apparent specific gravity and dry density atthe different ages with the highest value found for the wood at 30thirty years of age which was similar to the ones found for samples of native wood. The wood shrinkage also presented variation in function of the age but it did do not show differences in relation to native wood.

Palavras-chave : Pernambuco wood and Physical properties.

        · resumo em Português     · texto em Português     · pdf em Português