Your search resulted in 1256 documents. Displaying 25 entries per page.
Suggestive remarks for designing of experimental samples and trial devices to treat wood by pre-vacuumed immersion method
2019 - IRG/WP 19-40862
This study was conducted to test the impregnability of wood material according to the pre-vacuumed immersion process and to reveal the usability of cylindrical (plug) samples in impregnation experiments in addition to the cuboid or cubic samples. In this context, cuboids were prepared 30 mm in length, 20 mm in width and 20 mm in thickness, whereas plugs were prepared radially and longitudinally wi...
I Usta
Natural durability and performance of Eucalyptus globulus single family house in Spain after 17 years exposure
2019 - IRG/WP 19-40873
From last century, in the country side in Spain is common to find wooden houses. The reason is mainly due the improvements in glues, materials, design by computer and processing in factories. All these technological advances have facilitated the development industrialized systems cheaper. However, the variety of row materials, designs and construction systems, combined with some hard climates, cou...
D Lorenzo, M Touza, J Fernandez-Golfín, A Lozano, J Benito
Durability testing of mass timber building elements: a call for a collaborative trial
2019 - IRG/WP 19-40875
Mass timber buildings have captured the imagination of architects and engineers seeking more environmentally friendly building materials. The mass timber movement has tremendous potential to markedly increase timber use in mid-rise to high rise buildings. With great promise, however, comes great risk. Most mass timber structures that have been built or are being planned use no protective treatm...
J J Morrell
Wood veneer with high flexible decorated with nanoparticles for highly efficient water treatment
2019 - IRG/WP 19-50347
Natural wood is mainly comprised of numerous long, partially aligned channels (lumens) as well as nanochannels. Wood with these quick and effective passages is suitable for a membrane/separation material. However, a suitable thickness range of wood along its growth direction is essential to effectively separate small molecular, and the wood membrane is too thick to clean easily. In this paper, woo...
S Chang, D Xu, G Liu, J Hu, X Li, Y Liu
Knowledge exchange and transfer from academia to industry in the field of wood protection research – Activities of the IRG-WP Communications Committee
2019 - IRG/WP 19-50354
The International Research Group on Wood Protection (IRG) was founded in 1969 as a structured group of like-minded scientists and technologists focused on generating knowledge of the science of wood deterioration, and novel solutions to provide sustainably and environmentally responsible products for the protection of wood-based materials. The primary function of the IRG is to provide opportunitie...
F Latorre, B Abbott, C Brischke, M Humar, D Jones, E Larnoy, L Nunes, A Preston, T Singh
Terrestrial laser scanning (TLS) – a potential tool for improved utilisation of the natural durability of Scots pine for solid wood products
2019 - IRG/WP 19-50358
The natural durability of sapwood of most species is generally low, while heartwood can be more resistant to biodeterioration. For the sawmill industry various lumber products require certain diameters and lengths of the logs in addition to requirements for wood properties. When utilising the heartwood, it is therefore important to acquire information already in the forest about which trees that c...
P-O Flaete
Wood Protection in Canada
2019 - IRG/WP 19-50360
Wood Preservation Canada is dedicated to promoting and supporting a stronger Canadian wood treating industry. In this presentation, wood protection in Canada will be reviewed through the lens of IRG’s five sections. Canada has 10% of the world’s forests, harvests 155 million cubic metres annually, and exports more than $17.5 billion CAD of wood products. Decay is the primary cause of wood biod...
M Tauvette, R Sterling
Durability and climate change - implications for wood building structures
2019 - IRG/WP 19-50361
Sustainable building practices are rooted in the need for reliable information on the long-term performance of building materials; specifically, the expected service-life of building materials, components, and assemblies. This need is ever more evident given the anticipated effects of climate change on the built environment and the many governmental initiatives world-wide focused on ensuring that ...
M Lacasse
Performance of naturally durable decks after 15 years of field exposure
2020 - IRG/WP 20-10963
A decking test of Canadian species considered to be naturally durable was inspected after 15 years of exposure at test sites in Ontario and British Columbia. Based on the materials used in this experiment, Douglas-fir and yellow cypress had the greatest decay resistance, followed by eastern white cedar and western redcedar, and then by western larch and tamarack. All materials tested were more dur...
R Stirling, D Wong
Durability of tropical species from Peru according to European Standards
2020 - IRG/WP 20-10964
Natural durability is defined as the intrinsic resistance of wood against the attack of destructive organisms. There are standardized methods to estimate a durability value. In Europe, the standard EN-350 is responsible for establishing the basic guidelines, as well as the necessary tests to determine this value, which is essential to know the degree of protection needed for the tested wood to ext...
J Valdivia, P Gómez, M T Troya, L Robertson, J A Martín, A Loayza
Durability of Eucalyptus globulus floating structures mussels trough in marine environment against marine borers in the Atlantic coast of Spain
2020 - IRG/WP 20-10965
In Spain, since forever damages caused by marine borers are frequent in wood elements and wood structures located in sea water conditions. Galicia is a region located in the North West of Spanish, above Portugal, characterized by their typical estuaries, where since ancient times, the natural production of mussels from floating structures mussels trough. Since ever, wood species selected to build ...
D Lorenzo, M Touza, J Fernández-Golfin, A Lozano, J Benito
Performance of bio-based building materials – durability and moisture dynamics
2020 - IRG/WP 20-20666
When exposed to conditions favourable for decay, bio-based building materials can be susceptible to degradation. Their ability to withstand deterioration over time (performance) depends on the intrinsic or enhanced durability of the material as well as its wetting and drying behaviour. The effect of fungicidal components in wood is known since long. Other material characteristics, such as the mate...
L De Ligne, J Caes, S Omar, J Van den Bulcke, J M Baetens, B De Baets, J Van Acker
Resistance against marine borers: About the revision of EN 275 and the attempt for a new laboratory standard for Limnoria
2020 - IRG/WP 20-20669
Wood protection technology in the marine environment has changed over the last decades and will continue to do so. New active ingredients, newer formulations, and novel wood-based materials including physically- and chemically-modified wood, together with increasing concerns over environmental impacts of wood preservatives, urgently demand a major revision of EN 275 “Wood preservatives – Deter...
S Palanti, S Cragg, R Plarre
Long-term field exposure of wood-plastic composites processed on a commercial-size extruder
2020 - IRG/WP 20-40894
Wood-plastic composites (WPC) contain wood fiber (or flour), thermoplastics and additives and are exposed to UV light, moisture, and biological deterioration in outdoor installations. Accelerated laboratory tests can help to predict the durability of WPCs, but long term evaluations are needed to validate these results. Field exposed above-ground WPC deck boards (30.5 x 139.7 x 609.6 mm) and in-gro...
R E Ibach, C M Clemmons, N M Stark
Self-regulating heating cables for conductive heat transfer in pest control
2020 - IRG/WP 20-40895
Pest control by means of conductive heating of wooden elements requires considerable measuring and control efforts in order to avoid overheating of wooden surfaces, damage of structural elements and risk of fire. The usage of self-regulating heating cables might overcome such problems. In laboratory tests and under real conditions the applicability of self-regulating heating cables is tested with ...
J Müller, E Melcher, J Welling
Performance of a water-borne stain on beech, spruce, MDF and OSB improved by plasma pre-treatment
2020 - IRG/WP 20-40897
Coatings are an important part of wood protection, especially for outdoor applications. In order to provide a good protection, protective coatings need to exhibit good adhesion, mechanical resistance, and weathering resistance. Plasma pre-treatments are an established method to increase the performance of existing coatings including those on wood and wood-based substrates. Moreover, plasma deposit...
S Dahle, J Žigon, I Uranjek, M Petrič
Biological durability of sapling wood
2020 - IRG/WP 20-10967
Sapling-wood products from different wood species such as willow (Salix spp.) and Common hazel (Corylus avellana) are frequently used for gardening and outdoor decoration purposes. Remaining bark is suggested to provide additional biological durability. Even for temporary outdoor use it seemed questionable that durability of juvenile sapwood can provide acceptably long service lives of horticultur...
C Brischke, L Emmerich, D G B Nienaber, S Bollmus
From wood protection to health protection: larvicidal potential of formulations containing Sextonia rubra wood residues extract against Aedes aegypti mosquitoes
2020 - IRG/WP 20-10968
French Guiana is a French overseas territory almost entirely covered by Amazonian rainforest and characterized by its incredible biodiversity. Several woody species harboured by this tropical forest are exploited sustainably for timber industry. They are commercialized notably for carpentry and outdoor applications because of their remarkable natural durability. Among them, stand Dicorynia guianen...
E Cervil, N Amusant, E Wozniak, I Dusfour, J-B Duchemin, D Azam, M Coke, E Houël
The role of specimen format in wood durability testing
2020 - IRG/WP 20-20672
The experimental basis for testing the biological durability of wood are often incubation experiments with wood-destroying basidiomycetes. Numerous parameters can affect the mass loss by fungal decay (MLF) in laboratory durability tests and therefore being decisive for the resulting durability classification. Among others, the dimension of the wood specimen and the time of incubation impact on fun...
C Brischke, L K Grünwald, S Bollmus
Future development of durability assessment of wood, according to typical usage of preservative-treated wood and naturally durable wood in Japan
2020 - IRG/WP 20-20675
A market of preserved wood products in Japan has two unique histories. First is the market shift to residential ground sills from utility poles and sleepers; the other is the stop of CCA treatment caused by the new effluent standard. In 2018, around 85% of preserved wood products used for residential ground sills were treated with non-CCA such as Cu-based agents. Since the market of treated wood h...
T Osawa, W Ohmura, H Kurisaki
Development of procedures for sampling, testing, and classification to determine the biological durability of wood and wood products
2020 - IRG/WP 20-20676
This paper informs about a research project, which deals with several shortcomings and a lack of clarity within EN 350:2016. The project started in January 2020, will run for 3 years, and is operated by the Institute of Wood Technology Dresden (IHD) and the University of Goettingen (UGOE).
Determination and classification of durability of wood and wood products against wood-destroying organisms ...
W Scheiding, K Jacobs, S Bollmus, C Brischke
Durability of acetylated Radiata pine: Laboratory tests and performance in practice
2020 - IRG/WP 20-40899
Wood acetylation is an established process to enhance biological durability and dimensional stability of lower valuable wood species without the use of biocides. Acetylated Radiata pine (ACCOYA® wood) has been on the market for more than 10 years now, starting in 2007.
Numerous lab tests have confirmed the high durability of acetylated Radiata pine. Here, additional data with four Radiata pine ...
K Jacobs, W Scheiding, B Weiß
Sterilization of Large Timbers during Preservative Treatment: How Quickly We Forget
2020 - IRG/WP 20-40902
Air seasoning is a common method of moisture management in utility poles and is done de facto during pole storage prior to treatment. However, extended air drying prior to treatment encourages fungal attack and can facilitate establishment of decay fungi in poles before a protective preservative barrier is applied. This problem can be mitigated by proper air-seasoning methods coupled with heat ste...
G Presley, J Cappellazzi, M Konkler, K Maguire, R Nelson, J J Morrell
Biofinish: A Functional Wood Surface Treatment based on Aureobasidium
2020 - IRG/WP 20-40903
Xyhlo Biofinish is a natural and environmentally friendly wood protection concept based on linseed oil impregnation and a fungal-based coating. It emerged in the late 1990s and has been developed over the past 15 years into an industrially applicable process in the Netherlands. The combination of linseed oil impregnation and a surface treatment with the living fungus Aureobasidium extends the serv...
S Rensink, M Sailer, S Roukens, J Gerber, H van der Mel, K Potgieter, J Spit, R Bulthuis, C Struck, M Bennink
The influence of chemical compounds on wood cell wall to surface cracks
2020 - IRG/WP 20-40908
Degradation due to cracking and dimensional changes caused by drying, have a significantly negative impact on the preservation and durability of wood. Therefore, the prevention of surface cracking, which tends to occur during the drying process, is vital. High temperature set drying is one of the most effective methods for preventing wood surface cracking. It begins with softening the wood at a hi...
R Suzuki, Y Mori, K Yoshihiro, K Yamashita, M Kiguchi