Canadian Forest Service Publications
Performance of posts laminated with blue-stained mountain pine beetle lodgepole pine. 2005. Lam, F.; Gu, J.; Zaturecky, I. Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre, Victoria, BC. Mountain Pine Beetle Initiative Working Paper 2005-05. 24 p.
Available from: Pacific Forestry Centre
Catalog ID: 25430
CFS Availability: PDF (download)
Performance of laminated posts produced from mountain pine beetle-infested wood which could potentially compete with Douglas-fir posts in the California market is studied. Based on nondestructive vibration modulus of elasticity (MOE) test data of 38 mm x 140 mm (nominal 2 in. x 6 in.) mountain pine beetle-infested wood specimens, a 152 mm x 152 mm post (true 6 in. x 6 in.) was designed to compete with 140 mm x 140 mm (nominal 6 in. x 6 in.) Douglas-fir posts. The Canadian Forest Product (CANFOR) Research Centre further processed the wood to produce 60 2.26-metre-long (89 inches) glued laminated posts for structural testing. After non-destructive tests, four 76.2 mm x 76.2 mm x 251 mm (3 in. x 3 in. x 9-7/8 in.) short columns were obtained from each original specimen and tested in compression parallel to grain. The results showed that the 152 mm x 152 mm posts laminated with blue-stained lodgepole pine exhibited good structural performance compared to 140 mm x 140 mm select structural Douglas-fir posts.
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