Bruk av tre
Tre er et fornybart og miljøvennlig materiale, og vi forsker på temaer knyttet til utnyttelse av skogsråstoff til bygningsmaterialer, bioenergi, bioraffinering og andre produkter.
Arbeidet spenner fra utvikling av nye miljøvennlige metoder for trebeskyttelse til forbedring av prosesser for optimal biobrenselskvalitet og videre til utnyttelse av skogsbiomasse til høyverdige biprodukter.
Riktig bruk av tre i bygg og effektiv utnyttelse av trematerialer for å oppnå lang levetid inngår også i avdelingens arbeidsområde.
Temaartikler
Publikasjoner
Sammendrag
Understanding the service life of wood products used outdoors is essential for end-users to set realistic expectations regarding material performance. Furthermore, reliable service life data is critical for assessing building costs, environmental impact, and carbon storage potential. The report compiles existing knowledge on the service life of wood in outdoor constructions in Norway. The relevant applications included are wood used in ground contact, decking, and external cladding, and the data are derived from field trials conducted in Norway. The primary aim is to update the service life tables from a report published in 2014. Additionally, the report provides a brief introduction to the topic of wood protection. Many factors influence the service life of wood products, with temperature and moisture being the two most significant. The service life of wood in constructions primarily depends on the application, the natural durability of the material, any wood preservatives used, the presence of wood-degrading organisms, architecture, and craftsmanship. Poorly designed construction details can act as moisture traps, leading to early fungal damage. Therefore, it is important to address future climate challenges with well-informed solutions for optimal wood use. Secondarily, service life depends on thorough and repeated maintenance.
Til dokument
Forfattere
Andreas Treu Katrin Zimmer Christian Brischke Erik Larnøy Lone Ross Foued Aloui Simon M. Cragg Per-Otto Flæte Miha Humar Mats Westin Luisa Borges John WilliamsSammendrag
Timber structures in marine applications are often exposed to severe degradation conditions caused by mechanical loads and wood-degrading organisms. This paper presents the use of timber in marine environments in Europe from a wood protection perspective. It discusses the use of wood in coastline protection and archeological marine wood, reviews the marine borer taxa in European waters, and gives an overview of potential solutions for protection of timber in marine environments. Information was compiled from the most relevant literature sources with an emphasis on new wood protection methods; the need for research and potential solutions are discussed. Traditionally, timber has been extensively utilized in a variety of marine applications. Although there is a strong need for developing new protection systems for timber in marine applications, the research in this field has been scarce for many years. New attempts to protect timber used in marine environments in Europe have mainly focused on wood modification and the use of mechanical barriers to prevent colonization of marine wood borers. The importance of understanding the mechanisms of settlement, migration, boring, and digestion of the degrading organisms is key for developing effective systems for protecting timber in marine environments.
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Holdbarhet og bruk av tre Det finnes flere prinsipper for trebeskyttelse, slik som utnyttelse av trevirkets naturlige holdbarhet, konstruktiv trebeskyttelse, bruk av impregnerte trematerialer, bruk av modifiserte trematerialer og overflatebehandling.
Prosjekter
Divisjon for skog og utmark
CLICKdesign delivering fingertip knowledge to enable service life performance specification of wood
Forskere og industri vil i CLICK
Divisjon for skog og utmark
BioMim - Advancing biomass technology
Utilization of woody (lignocellulosic) biomass has emerged as a top priority to meet growing energy demands, address climate change, and support forest economies. Research and technology development are critically needed to find cost-effective and sustainable solutions for the conversion of biomass. Extensive exploitation of lignocellulosic biomass as a feedstock for a variety of products is the key to develop a viable bio-economy. However, the natural resistance of lignocellulosic biomass to chemical and biological deconstruction is a challenge that biorefineries have to overcome.
Divisjon for skog og utmark
Ombruk av tre
Forståelser av treavfallskvaliteter og ombruk av trevirke i Oslo og Akershus.
Divisjon for skog og utmark
Treressurser - VerdiTre
Prosjektets mål er å få til økt verdiskapning fra sekundære treressurser fra skog- og treindustri, herunder å utvikle nye produkter og løsninger.
