Performance of preservative-treated timber commodities in above-ground service tests

IRG/WP 95-20064

M E Hedley, D R Page

Service tests established by NZ FRI are of commodities where treatment has been undertaken in commercial plants and although such data as preservative uptake of individual items is recorded and sample analysis undertaken, material is usually "run-of-mill" for the commodity being treated. The NZ FRI Service Test database includes a wide range of preservative/species combinations in virtually all above ground commodities where timber or plywood is used. They include complete bridges, domestic and commercial building components (sheathing, framing, window joinery, decking, roofing shingles), log houses, cross-arms, cooling towers and geothermal steam bore silencers. Often, such as in glue-laminated bridge components, these tests are the only unequivocal way the fitness for purpose of particular species/preservative combinations can be tested. Prosedures for establishing the programme and maintenance of the database are given with a summary of current tests and a selection of pertinent results from them.


Keywords: PRESERVATIVES; TIMBER COMMODITIES; SERVICE TESTS; DATABASES; OUT-OF-GROUND CONTACT

Conference: 95-05-11/16 Helsingør; Denmark


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