Floresta e Ambiente
http://floram.org/article/doi/10.1590/2179-8087.011415
Floresta e Ambiente
Original Article Wood Science and Technology

Mechanical Properties of Thermally Modified Corymbia Citriodora and Eucalyptus Saligna Woods

Walmir Marques de Menezes; Joel Telles de Souza; Douglas Edson Carvalho; Maiara Talgatti; Elio José Santini

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Abstract

ABSTRACT: This study aimed at evaluating thermal modification in mechanical properties of Corymbia citriodora and Eucalyptus saligna woods compared with a control. To do so, three samples of each species were selected, with approximately 40 years, which had the first two three-meter long logs removed. Wood thermal modification was done through final temperatures of 140 °C, 160 °C e 180 °C for 2.5 hours, and the control as well, using a forced air circulation greenhouse. Mechanical properties tests consisted of maximum impact resistance evaluation, static bending, and fiber parallel compression. Generally, results showed that thermal modification increases wood resistance up to a certain point and reduces in the highest temperature.

Keywords

final temperatures, maximum impact resistance, static bending, fiber parallel compression

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