A Note on the Protection of Wooden Beams Exposed to an Acidic, Humid Atmosphere
Keywords:
<i>Pscudotsuga menziesii</i>, strength, chemical degradation, chemical analysis, protective coatingsAbstract
By means of standard lignin and carbohydrate analyses, together with pH measurements, the cause of strength losses in beams exposed to an acidic, humid atmosphere was shown to be due to acid hydrolysis of wood carbohydrates. It is recommended that wooden beams used in such an acidic environment be adequately finished with a flexible, moisture-proof coating and the finish be inspected and maintained at regular intervals.References
Barton, G. M. 1972. How to prevent dry kiln corrosion. Can. For. Ind. 92(4):27-29.nKass, A., F. F. Wangaard, and H. A. Schroeder. 1970. Chemical degradation of wood: the relationship between strength retention and pentosan content. Wood Fiber 2(1):31-39.n
