Strength of glue line for reforestation wood

oleh: Pedro Gutemberg de Alcântara Segundinho, Carlito Calil Neto, Fabrício Gomes Gonçalves, Adair José Regazzi, Carlito Calil Junior

Format: Article
Diterbitkan: Universidade Estadual de Londrina 2015-05-01

Deskripsi

<p style="line-height: 0.35cm; margin-bottom: 0cm;" align="justify"><span style="color: #000000;"><span style="font-family: Verdana, sans-serif;"><span style="font-size: medium;"><span style="color: #000000;"><span style="font-style: normal;"><span style="font-weight: normal;">This paper aims to evaluate the shear strength of glued laminated timber (glulam) made of three wood species: </span></span></span><span style="color: #000000;"><em><span style="font-weight: normal;">Tectona grandis, Pinus oocarpa </span></em></span><span style="color: #000000;"><span style="font-style: normal;"><span style="font-weight: normal;">and </span></span></span><span style="color: #000000;"><em><span style="font-weight: normal;">Eucalyptus sp</span></em></span><span style="color: #000000;"><span style="font-style: normal;"><span style="font-weight: normal;">.. The bonds were made with lamellae with no chemical treatment, using two-component adhesive based on melamine-urea-formaldehyde (MUF). Glue line shear tests were made for wood in local moisture content and high humidity, as well as delamination tests. The results presented in the glue line shear strength tests in dry condition and delamination for the three species indicate better performance of </span></span></span><span style="color: #000000;"><em><span style="font-weight: normal;">Pinus oocarpa</span></em></span><span style="color: #000000;"><span style="font-style: normal;"><span style="font-weight: normal;">. It was concluded that this species there is potential to produce MLC utilizing the MUF adhesive.</span></span></span></span></span></span></p>