Wood Preservation

Even though history books and primary documents often shed great light on previous cultures and eras, the discovery of artifacts often helps expand such knowledge or can even help fill in missing pieces of that knowledge. For example, in 2000, rainfall deficits in Florida at Newnans Lake revealed canoes in lakes, rivers, and peat bogs (Wheeler et al. 2003). The decayed remnants of over 100 log boats were of precontact Native American design, revealing much about log boat construction and design before European and American contact. In 1628, the Vasa, the pride of the Swedish fleet, sank on its maiden voyage (Hamer 2002). Its recent discovery not only taught much about the era and it

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ce tension forces of the evaporating water cause the weakened cell walls to collapse, creating considerable shrinkage and distortion” (Wood 2003, 2). Waterlogged wood is grouped into different classifications depending on the degree of water held by the wood. There are three classes of waterlogged wood, each more difficult to conserve than the other. The three classes of waterlogged wood are: Class I: 400% or more water Class II: 185-400% water Class III: 85% or less water (Wood 2003, 3) Class III hardwoods are the most challenged waterlogged wood to conserve. There are a number of different methods of waterlogged wood conservation. The process always encompasses two steps, however. The first step of all waterlogged wood conservation involves putting some substance into the wood that will add strength to it to hold its shape as the water is drained. The second step always involves the removal of the water, using some method that will not add to shrinkage or distortion. When waterlogged woods have been in salt water, any significant amount of salt deposits must be extracted from the wood before conservation occurs to prevent adding to the wood’s damage during conservation. There are seven methods of conserving waterlo
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Approximate Word count = 1386
Approximate Pages = 6 (250 words per page)

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