LEACHING AND DURABILITY OF COPPER TREATED SCOTS PINE ( PINUS SyLvESTRIS L . ) WOOD (original) (raw)

Scots pine (Pinus sylvestris L.) is the most common wood species in Latvia. It is classified as not durable, therefore additional protection against microorganisms is needed prior its use outdoors. Presently Cu-containing wood preservatives are commonly used, but the biggest drawback is the poor Cu fixation, therefore raising concerns about the impact on the environment. Three types of specimens were used to carry out the experiments – untreated, Latvian originated Scots pine; Scots pine commercially treated with preservatives that belong to a group of Cu-boron-triazole (CBA) products; and Scots pine, impregnated with micronized-Cu solution using a standard full cell process. In order to make sure that all of the specimens are equal in their components, elemental analysis was performed and content of nitrogen (1.2 – 2.5 g kg-1), carbon (485.5 g kg-1), oxygen (456.0 g kg-1) and hydrogen (55.6 g kg-1) was determined. The treated specimens were leached according to the European standar...

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