Dimensional stability of the wood clones Eucalyptus spp.

Abstract

The study of the dimensional stability of the wood is essential for industrial use, both in construction and the manufacture of furniture. The dimensional instability of the wood is a relevant problem that occurs during its beneficiation, as a consequence of the change in moisture content, and that shall be considered to determine the best end use for the same. From the exposed, the objective of this study was to evaluate the dimensional variations of maximum volumetric and linear, beyond the stability of wood three clones of Eucalyptus spp. For so much, were used three different hybrids of Eucalyptus: Eucalyptus saligna x Eucalyptus saligna, Eucalyptus urophylla x Eucalyptus grandis e Eucalyptus urophylla x Eucalyptus globulus. The preparation of specimens and the determination of dimensional variation of the wood were performed according to standard COPANT 30:1-005. It was concluded that the clone Eucalyptus urophylla x Eucalyptus globulus presented the best results about the dimensional changes of the wood, and regarding the dimensional stability, the three clones showed satisfactory performance, classified as normal, and can be used in products such as tables, cabinets and other purposes that allow small degree of warping.