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COST ACTION E22: Environmental optimisation of wood protection Deterioration of wood – a long term test of a traffic sound barrier (KTH) Along a rapid train track from downtown Stockholm to Arlanda airport sound barriers have been built. The total length is about 11 km and the main part is made of larch wood. Ten sections - four meters each - are made of other wood species with and without treatments. These sections and the adjacent larch section were carefully documented as regards wood quality parameters and treatment. They have now been exposed for almost three years and some deterioration can be expected. Microscopic and chemical analyses will now be performed and the deterioration will be continuously followed during several years. The aim is primarily to compare larch with other species in this application. Furthermore the case could be used for methodological studies e.g. related to the project “Environmental impact from building materials as influenced by durability and service life”. The project is performed in co-operation with the Swedish University of Agricultural Sciences and the Swedish National Testing and Research Institute. Contact person: Prof. Kai Ödeen E-mail: kai@bim.kth.se Evaluation of wood preservation according to EN 351 (SP) Since 1998 industrial wood preservation in the Nordic countries is carried out according to the European standards EN 351 and EN 599. In a project with participating institutes from all Nordic countries the experiences so far with the new treatment specifications will be evaluated. The evaluation will focus on the following issues: • The quality requirements: are they reasonable? • The factory production control; • Third party inspections (interpretation of guidelines of sampling, chemical analysis etc); • Comparison with the previous standards and requirements. Experiences from the wood preserving industry and certification bodies will be collected and considered. A report is expected during 2001. Contact person: Mr Jöran Jermer E-mail: joran.jermer@sp.se 164
COST ACTION E22: Environmental optimisation of wood protection Requirements/expectations on wood durability (SP) The aim of this project is to get an idea of specifier/consumer requirements/expectations on the service life/durability of various wood constructions (outdoor). The project is carried out in three parts: • a literature survey concerning official and other requirements/recommendations/ information • an enquiry to home owners • an enquiry to specifiers, building contractors and similar professionals. A report is expected towards the end of 2000. Contact person: Mr Jöran Jermer E-mail: joran.jermer@sp.se Termite and decay resistance of modified wood in tropical climate (CTH) Lab tests (subterranean termites, drywood termites, white rot and brown rot fungi) and field tests (in Bogor and Bandung on Java, Indonesia) of acetylated and furfuryl alcohol modified wood (Pinus sylvestris sapwood, sapwood of Agathis sp. and Paraserianthes falcataria). For Pinus also melamin treatment and three other modification methods are included. Contact person: Dr Mats Westin E-mail: mats.westin@sikt.chalmers.se Penetrating water-repellents for external joinery (Trätek) The aim of this project is to improve the penetrability of existing products with water repellent properties, such as vegetabilic oils and tall oil, in order to make them suitable for treatment of external joinery. Contact person: Dr Finn Englund E-mail: Finn.Englund@tratek.se 165
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