The potential of colour measurement for strength prediction of thermally treated wood

摘要: This paper investigates the effects of thermal treatment birch with respect to colour and strength. Birch wood was treated at 175 °C 200 °C for 0 h, 1 h, 3 h 10 h. In bending-strength experiments, also performed 185 °C 2 h. Both static bending strength impact were investigated using multivariate statistics (PLS) correlation process parameters, density, EMC, position in board, modulus elasticity (only bending), dimensions samples. bending, two PLS models designed, one based on parameters other EMC. From these it concluded that is not a useful parameter prediction impacted too small give results. One test matched samples performed, showed reduction 43% when conducted 3 h. Measurement homogeneity boards homogeneous.