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Apart from structural wood preservation measures, there are a number of different chemical preservatives and processes (also known as timber treatment, lumber treatment or pressure treatment) that can extend the life of wood, timber, and their associated products, including engineered wood. These generally increase the durability and resistance ...
This preservative is also used for remedial treatments to in-service poles including internal/external surfaces at ground or below ground level via brush/trowel, mechanical injection, or bandage wrap. Wood treated with copper naphthenate is specified for exterior above ground, ground contact, below ground and fresh water contact use applications.
Like other copper-based wood preservatives, it imparts a greenish tint to treated timber. CCA was invented in 1933 by Indian chemist Sonti Kamesam , and patented in Britain in 1934. It has been used for timber treatment since the mid-1930s, [ 1 ] and is marketed under many trade names.
S/S technologies were used to treat a contaminated former wood treating facility in Port Newark, New Jersey. Approximately 8 acres (32,000 m 2) of soil was contaminated by wood with arsenic, chromium, and polycyclic aromatic hydrocarbons. 8% of Portland cement was used by wet weight of contaminated soil. Both in situ and ex situ processes were ...
The wood was first treated with a catalyst and then soaked with furfuryl alcohol. However, the high cost of the two-stage impregnation prevented the production of furfurylated wood at market-demanded prices. [7] In 1997, Wood Polymer Technologies ASA in Norway was founded in an attempt to build a pilot plant for a single stage production ...
This process is similar to the Les Bois Perdure treatment in that it uses a steam environment at atmospheric pressure to treat the wood. However, this process can also be used on "green" wood and was the most widely used commercial process as of 2004. [5] [10] Genuine industrial scale ThermoWood process was developed in Finland in 1990's.
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