Past, present, and future of the wood preservation industry

The treated wood industry in the US is evolving as new products emerge, technology advances, and environmental concerns increase. Recently, chromated copper arsenate (CCA) preservative-treated wood has been a frequent subject in the national news. A voluntary phase-out of CCA-treated wood for non-in...

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Bibliographic Details
Published in:Forest products journal 2003-10, Vol.53 (10), p.8-15
Main Authors: FREEMAN, Michael H, SHUPE, Todd F, VLOSKY, Richard P, BARNES, H. M
Format: Article
Language:English
Subjects:
Applied sciences
Arsenic
Cell cycle
Chloride
Copper
Degradation and preservation
Environmental impact
Exact sciences and technology
Forest products industry
Polymer industry, paints, wood
Preservatives
Production methods
Railroads
Retention
Technological change
Timber
Wood
Wood preservatives
Wood products
Wood. Paper. Non wovens
Zinc
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Summary:The treated wood industry in the US is evolving as new products emerge, technology advances, and environmental concerns increase. Recently, chromated copper arsenate (CCA) preservative-treated wood has been a frequent subject in the national news. A voluntary phase-out of CCA-treated wood for non-industrial uses has increased the attention on new-generation, arsenic-free preservatives. This article examines the past, present, and future of preservative-treated wood with an emphasis on issues in the marketplace and treated wood use policy. One of the most exciting new treating technologies is based on the suggestion by Scheurch (1968) that treatment in the vapor phase could mitigate problems that occur when treating with liquids. Two problems must be overcome in order to get deep, uniform treatment. First, tension forces at the liquid-air and liquid-wood interfaces must be overcome. Secondly, transverse movement is dictated by the permeability of pit membranes. Gas phase treatment would seem to eliminate both of these major problems.
ISSN:0015-7473
2376-9637