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A review of double-diffusion wood preservation suitable for Alaska.Author(s): K. Josephine Pavia
Source: Gen. Tech. Rep. PNW-GTR-676. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 23 p
Publication Series: General Technical Report (GTR)
Station: Pacific Northwest Research Station
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DescriptionCurrently, all treated lumber used in Alaska is imported from the 48 contiguous states and Canada because there are no wood-treating facilities in Alaska. This report explores conventional and alternative wood-treating methods and reviews previous studies and laboratory tests on treated wood. In investigating wood treatment as a possible processing option for Alaska forest products manufacturers, the double-diffusion method of using sodium fluoride followed by a copper sulfate appeared to be the most advantageous approach. This method of treating wood was identified because it can be used to treat freshly cut or green wood. This was an important factor to consider, owing to the limited drying capacity in Alaska. Little information was available as to the chemical retention after treating and its resistance to leaching.
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CitationPavia, K. Josephine. 2006. A review of double-diffusion wood preservation suitable for Alaska. Gen. Tech. Rep. PNW-GTR-676. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 23 p
KeywordsWood preservation, double-diffusion, Alaska, nonpressured treatment, lumber, copper sulfate
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