Physical and Mechanical Properties of Oriented Strand Board Made from Eastern Canadian Softwood Species

This study aims to investigate the feasibility of producing OSB from softwood species used in Eastern Canadian lumber industry context overcapacity chips traditionally produced for pulp and paper industry. Balsam fir, black spruce, jack pine logs were make 15 mm thick panels with a target density 600 kg/m3. The manufactured at temperature 210 °C during pressing cycle 300 s. Strands different thicknesses obtain constant specific surface 6.7 m2/kg three species. bending modulus rupture elasticity, internal bond, thickness swelling determined compared CSA standard requirements. significantly affected physical mechanical properties OSB. decreased an increase wood density. bond strength increased made showed exceeding requirements, except high swelling. combination aspen strands improved softwood-based reduction layer could also be explored reduce softwoods considered this study.