Wood properties of Eucalyptus grandis and Pinus caribaea estimated by colorimetry

Abstract

The use of non-destructive technologies has been very effective in characterization and evaluation of wood quality. This study aimed to characterize the technologically wood of Pinus caribaea and Eucalyptus grandis by Colorimetry. The study was conducted at the University of Brasilia (UNB) in Physics and Engineering Laboratory the Laboratory of Forest Products/ LPF - Brazilian Forest Service (SFB). Species were subjected to standard tests of basic density, shrinkage and bending. For the colorimetric determination of the parameters it was used a spectrophotometer according to the methodology adopted by Camargos (1999). The radial surface of the wood is most suitable for the collecting of the colorimetric parameters and prediction of properties. Property best estimated by this technique was the density, followed by modulus of elasticity (MOE) and modulus of rupture (MOR).