Evaluación de la resistencia al cizallamiento por compresión y falla en madera de uniones encoladas en maderas nacionales e importadas

Authors

  • Sebastián Quagliotti Departamento de Proyectos Forestales, Laboratorio Tecnológico del Uruguay(LATU), Uruguay

DOI:

https://doi.org/10.26461/03.03

Abstract

The results of the shear strength (by compression) and wood failure of bond unions in Eucalyptus grandis, Pinus taeda, Pinus eliottii, Tabebuia ipe y Cedrela spp are shown in the present work. The process was based on the following standards: ASTM D 5751-99, JIS K 6852-1994 y EN 205:1991. The most relevant stages were bonding and the cutting of samples, water immersion treatment (30, 60, 100 ºC) and universal machine test. Shear strength, Ratio wet/dry shear and Wood Failure percentage were determined. As a conclusion, the PVA is not an adhesive to be used under high humidity conditions, due to the low values of shear strength and percentage of wood failure that the study species shown after water immersion treatment compared with the values under dry conditions. Another relevant conclusion is that the samples of E. grandis bonded with isocyanate shown the highest values of the Ratio wet/dry shear after water immersion treatments, as well as a lower fall in the percentage of wood failure, compared with the other species under study.

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How to Cite

Evaluación de la resistencia al cizallamiento por compresión y falla en madera de uniones encoladas en maderas nacionales e importadas. (2011). INNOTEC, 3 ene-dic, 23-29. https://doi.org/10.26461/03.03