TORRES, P. M. A.; http://lattes.cnpq.br/1080523046001341; TORRES, Pablo Marcel de Arruda.
Resumo:
Reforestation and sustainable forest management are practices that aim at
environmental protection as a way to support reduction of deforestation and
unrestrained use of native species. The main objective of this study was to
analyze the quality of juvenile wood of Eucalyptus camaldulensis Dehnh.
planted in Rio Tinto, PB, for the use in rural architecture, with emphasis on the
making of furniture. Aiming to determine the wood properties, physicalmechanical
tests were conducted by using the simplified wood characterization
method. Through physical tests values of humidity tenor, density, bulk density,
shrinkage and swelling and the coefficient of anisotropy were obtained. The
mechanical tests were carried out using linear variable displacement
transducers (LVDT's) coupled to the data acquisition system. These tests
determined the values of rigidity and resistance of wood to parallel compression
to the fiber. The method used for the treatment of wood was the sap
displacement for radial transpirations using chromated copper borate (CCB)
where was analysed the effect of the samples inversion in the preservative
solution. In order to check the quality of the treatment of wood, distribution,
penetration and retention in the wood were analyzed. The values obtained
showed that the juvenile wood of E. camaldulensis can be clustered according
to the classification of resistance C 20 for trees determined by NBR 7190.
Taking into consideration that the wood this study investigates has low
resistance in comparison with other exotic woods, its use for structural purposes
is unadvisable. Nevertheless, it can be used for rural secondary elements of
architecture, including the manufacture of furniture. The distribution, penetration
and retention were better succeeded in the samples that were reversed, when
compared with the non-reversed samples in the preservative solution.