6. Conclusion

Retification improves wood durability and stability. It can be used to enhance the value of unstable, less durable European species such as poplar. Its sterilizing action enables contaminated wood to be recycled. In the case of softwoods, the treatment eliminates resin seepage. Furthermore, European regulations have prohibited the use of copper-chromium-arsenic impregnated wood since June 2004. This creates an opportunity for the development of heat-treated wood for outdoor applications. One of the most recommended applications is cladding, for which the French market is estimated at 35,000 m ³ /year . The use of heat-treated wood...

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Glossary

Bibliography

(1) - WHITE (H.A.), ARBOR (A.) - Process for the partial pyrolysis of wood and product of the same. - Patent 2,360,604, US Patent Office (1944).
(2) - STAMM (A.J.), HORACE (K.B.), KLINE (A.A.) - Staywood : heat-stabilized wood. - Ind. Eng....

Patents

Anti-shrink treatment for wood United States Patent Office 2,296,316 Alfred J. Stamm 09, 22 (1942)

Process for manufacturing a lignocellulosic material by heat treatment and materials obtained by this process n° 8614138, ARMINES (1986)

Process for manufacturing an agglomerated material based on a lignocellulosic material and material obtained by carrying out this process. N° 87...

Website

http://www.sefwood.com/fr/

Site of the only active producer (2016) in France, located in the Vosges region.

Standards and norms

Wood – Determining shrinkage - NF B51-006 - 1985
Wood – Static bending test – Determination of the static bending strength of small flawless specimens - B 51-008 - 1987
Wood – Determination of Monnin hardness - NF B51-013 - 1985
Durability of wood and wood-based materials – Classes of use: definitions, application to solid wood and wood-based materials - NF EN 335 - 2013
Durability of...