Abstract
OSB panels were developed as a substitute for plywood. However, their properties in static bending, i.e. modulus of elasticity (MOE) and modulus of rupture (MOR) are often reduced. The aim of this study was to evaluate MOE and MOR of OSB manufactured with Pinus sp. and castor-oil based polyurethane resin, applying a wire mesh in order to improve those properties. Recommendations of normative document EN 310:1993 were obeyed. Results showed that mechanical properties considered are compatible with codes requirements and with values obtained by several authors in related literature. In static bending tests, the difference between parallel-to-grain MOE and MOR values of panels with and without wire mesh treatment was not significant. Statistical analysis reveals that the wire mesh pressing position does not affect MOE and MOR. However, these values are superior to those recommended, for OSB and plywood, by normative documents.
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