Role of Density in the Erosion of Wood During Weathering

Samples from 12 hardwoods and 6 softwoods were artifically weathered. The rate of surface erosion was measured with a light microscope at exposure intervals of 600 hours. The results showed that the rate of erosion per unit time depends predominantly on the wood density and thus on the wood cell wall thickness. The relationship is approximately linear within a density range of 0.3 to 1.0 g/cm3.

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