The durability of acetylated beech (Fagus sylvatica L.) laminated veneer lumber (LVL) against wood-destroying basidiomycetes

Abstract The overall aim of this study was to investigate the durability acetylated beech ( Fagus sylvatica L.) laminated veneer lumber (LVL) against wood-destroying basidiomycetes. secondary objective test whether specimen size affects mass loss and assessment wood-material under test. based on pre-standard prEN 113-3. Six materials (acetylated LVL, untreated solid wood, pine sapwood Pinus sylvestris L.), larch Larix decidua Mill.) 3-layer slab, wood) were tested using three geometry designs (50 × 25 15 mm 3 as well 50 19 with without sealed edges) Coniophora puteana , Rhodonia placenta Gloeophyllum trabeum Trametes versicolor Pleurotus ostreatus . made arithmetic mean median percentage (ML), relative ML x -values), decay susceptibility index (DSI). It found that affected by fungus, material, design, latter being most essential factor in study. In addition, parameter had a significant effect classification. Furthermore, small differences resulted different classes (DC) some cases, whereas large did not. However, LVL always considerably durable (DC 1) all fungi independent design method.