03 marzo 11, 02:48
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Data registr.: 13-09-2010 Residenza: Vicenza
Messaggi: 235
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Altre informazioni: "What are the Wood properties of Paulownia?
Unique wood properties such as lightness, strength, woodworking versatility, and stability under rapid changes in moisture have made paulownia highly desirable. These will be primary reasons for future use in domestic markets.
LightnessPaulownia is about 2/3 the weight of the lightest commercial wood in the U.S. The specific gravity of paulownia wood ranges from 0.23 to 0.30 (23 to 30 percent of the weight of water). Average cubic foot weight is 16.55 lbs. The bulk weight of lumber averages 1,382 lbs per thousand board feet compared to yellow poplar (tulip poplar), which weighs 2,190 lbs, or white oak, which weighs 3,337 lbs.
Strength and stabilityAlthough the wood is light, it is extremely strong and will not split even when spikes are driven into it. Unlike other commercial woods, paulownia does not split and crack with rapid drying.
Easily workedAnother unique quality is the ease with which it can be worked, especially when green. It is suitable for carving, woodworking, model airplane construction, and peeling for veneer. As it dries, it becomes considerably harder, but not as hard as most domestic woods.
Easily driedPaulownia will air dry in about 30 days with no warping. This reduces the cost of kiln-drying."
How to Produce and Market Paulownia (University of Maryland; University of Kentucky) http://extension.umd.edu/publications/pdfs/eb319.pdf Palownia wood - better than Balsa??? - RC Groups
+++ Evaluation of Physical and Mechanical Properties of Paulownia Wood Core and Fiberglass Surfaces Sandwich Panel Manufacturing High Performance Wood Composite Panel from Paulownia |
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