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Article: Sorting sugi lumber by criteria determined with cluster analysis to improve drying.
- Article from:
- Forest Products Journal
- Article date:
- February 1, 2006
- Author:
CopyrightCOPYRIGHT 2006 Forest Products Society. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Abstract
Sugi (Cryptomeria japonica D. Don) is one of the main species used for structural lumber for Japanese wood housing. The initial moisture content (MC) of sugi is relatively high and varies from board to board. This makes sugi lumber difficult to dry. It has been said that sorting sugi lumber based on the initial MC estimated from the green weight is useful for efficient drying. On the other hand, the MC and drying properties of the heartwood in sugi is extremely different from those of the sapwood. So we assume that the heartwood-sapwood proportions affect the drying process. In this study, the heartwood ratio was determined from the cross sections at ...
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