Your search resulted in 1400 documents. Displaying 25 entries per page.
Improvement of durability of Scots pine against termites by impregnation with citric acid and glycerol followed by in situ polyesterification
2023 - IRG/WP 23-30777
…of experiments were conducted for this purpose: field tests conducted for three months at Bogor, West Java island, Indonesia, the dominant subterranean termite species identified in this area were Schedorhinotermes sp. and Macrotermes sp., and no choice laboratory tests against Cryptotermes cynocephalus Light.…
M Mubarok, J Damay, E Masson, E Fredon, Y S Hadi, I W Darmawan, P Gerardin
Challenges in managing very long-term field tests
2023 - IRG/WP 23-30779
Field testing of wood preservatives has been on-going in Petawawa, Ontario, Canada since at least 1937. Many of the treated roundwood posts from these early experiments are still in test, and include preservatives still used today, including creosote, copper n…
R Stirling, D Wong
Establishing the minimum effective penetration of wood preservatives in the refractory heartwood of E. nitens
2023 - IRG/WP 23-30780
…would perform as well on lower durability hardwoods. Field tests would take decades to produce meaningful results, although accelerated laboratory decay tests might help bridge the testing gap.
This study evaluated a laboratory method to determine the minimum effective level of chromated copper arsenate (CCA)…
J R Vargas, J J Morrell, L Yermán, K C Wood
Outdoor performance of Tanalith® K treated timber: Dimensional stability and corrosivity towards metal fasteners
2023 - IRG/WP 23-30798
…treated timber in both corrosion and dimensional stability tests.
G Rassam, J Hague, D Humphrey
Biological durability and wood-water interactions of sorbitol and citric acid modified wood – Effects on the expected service life
2023 - IRG/WP 23-40960
…specimens were subjected to moisture uptake and release tests and the changes in wettability were registered. Overall, the water uptake of SorCA-treated specimens significantly decreased in comparison to untreated control specimens. Based on results from this and earlier studies testing the resistance of SorCA…
K Kurkowiak, L Emmerich, H Militz
Field test methods as long-term aging – report of selective wood properties
2023 - IRG/WP 23-40962
…or modified) wood subject. The spectrum of the tests included determining resistance to decay, resistance to fire, and determination of the modulus of elasticity. Wood exposed to the field test method can be a valuable research material as a post-consumer wood product. CCA-treated wood, acetylated wood,…
W Perdoch, M Benc, B Mazela, A Szulc, J Cegiela
Evaluation of the efficacy of silver nanoparticles and chitosan oligomer composites as poplar wood protective treatments against termites
2023 - IRG/WP 23-40963
…as well as pine wood reference samples for validation tests, were used. The resistance of poplar wood to subterranean termites (Reticulitermes grassei) was determined in accordance with EN 117:2012. The durability class was assessed according to EN 350:2016 and the use class was estimated according to EN…
E Spavento, M T Troya, M Casado-Sanz, J Martín-Gil, P Matín-Ramos, L Robertson, L Acuña-Rello
Adhesion and performance of exterior wood coatings on chemically and thermally modified wood – Results from 5.5 years outdoor exposure
2023 - IRG/WP 23-40964
Non-durable softwood and hardwood species were treated with the water-soluble cyclic N-methylol compounds 1,3-dimethylol-4,5-dihydroxyethyleneurea (DMDHEU) and methylated DMDHEU. One half of the modified specimens were coated with a waterborne acrylic coating…
L Emmerich, H Militz
Resistance of phenol formaldehyde impregnated beech (Fagus sylvativa L.) LVL against biodegradation in soil contact
2023 - IRG/WP 23-40965
…with a variety of process parameters. In ground durability tests started in 2015 and were evaluated based on EN 252 (2015) on the test field at the University of Goettingen; Germany as well as in Stamsmåla, Sweden. The durability classes (DC) were determined based on the decay rates. The evaluation showed that very…
M Slabohm, C Brischke, S Bicke, H Militz
Failure characteristics of thermally modified poplar wood subjected to mechanical tests
2023 - IRG/WP 23-40983
Poplar (Populus spp.) are among the fastest growing timber species and have been widely planted for use in plywood, composites, pallets, furniture components and paper production. However, the low density of the wood limits many structural applications and th…
E Bari, M Ghorbanian Far, N Moradi, J J Morrell, G Daniel, B Mohebby, R Hosseinpourpia, M Humar
Short-term absorption of water and coatings on thermally modified blue-stained spruce wood
2023 - IRG/WP 23-40984
…wood and blue-stained spruce wood was tested. Various tests related to moisture absorption (short-term and long-term water absorption and water vapour absorption) were conducted. The results shown in the water efficiency tests and coating resulted in a significant difference, which is related to the density of…
R Hasanagic, M Bahmani, M Humar, L Fathi, L Cai
Modification of wood by fast pyrolysis bio-oil – the NewWave project concept for bio-based wood treatment
2023 - IRG/WP 23-40990
…behaviour among others.
As a follow-up of screening tests best-performing formulations will be selected and used for modification of larger amounts (ca. 1m3) of wood (Radiata pine, Scots pine, European beech). Samples will be then evaluated in terms of weathering, durability, fire, and mechanical performance.…
A Sandak, J Sandak, F Poohphajai, R Herrera Diaz, A Gubenšek, K Butina Ogorelec, L Kiezebrink, K J Swager, H Heeres, B van de Beld
Fungicidal properties of black liquor from the waste MDF board digestion in terms of wood protection
2023 - IRG/WP 23-50379
…non-treated wood samples. All samples in two independent tests were subjected to the action of mould or wood decay fungi. The fungicidal properties of potential preservatives in both studies were determined by the accelerated method. It was found that the black liquor, which is a by-product in the process of…
B Mazela, W Perdoch, A Szulc, I Sieminska
End-of-life options for engineered wood products / Treated timber in a circular economy
2023 - IRG/WP 23-50383
…pathways, including resawing, composite panel production, combustion, and composting for each material – pathways that are in use around the world. This project will help solve disposal issues, convert waste to products, create new products, and support employment and industry growth.
H Brooke
Eradication of beetles attacking wooden historical buildings by humidity-controlled warm-air treatment
2023 - IRG/WP 23-11028
…the field have been developed, followed by demonstration tests using actual buildings in 2017, 2018, and 2022. As a result, the effectiveness and safety of this method were confirmed, and in September 2023, it was applied for the first time in Japan to an important cultural property building in Nikko.
Y Fujii, Y Fujiwara, M Harada, H Kitahara, M Shimada, S Kondo, Y Sato, M Shimada, R Kigawa, H Watanabe, Y Komine, S Hidaka, D Ogura
In Vitro Growth of the Basidiomycetes Physisporinus vitreus strains in various conditions in comparison with some white rot fungi
2022 - IRG/WP 22-10987
…by chemotropic test, choice test, and agar plate toxicity tests and determination of the effect of various ions on oxalic acid secretion by these white rot fungi. In the project, it is also aimed to run fungal decay tests to determine nano and soluble-Cu tolerance of the test fungi and Cu depletion by the fungi. A…
E E Soytürk, S N Kartal
Results of the resistance of acetylated wood against marine borers at three Italian sites after five years of sea immersion
2022 - IRG/WP 22-10994
…Aucoumea klaineana Pierre 1896 (Oukumè). The field tests were carried out in accordance with EN 275:1992 and started in April 2015. The three Italian exposition sites were Marina of Scarlino, a private harbour, Genoa port and Venice Lagoon. Final evaluation in 2021 showed a great resistance to marine borers…
S Palanti, F Stefani, M Andrenacci, M Faimali, I Guarneri, M Sigovini, D Tagliapietra
Protection of Venetian pilings from marine borers
2022 - IRG/WP 22-10995
…Furthermore, it describes damages to pilings and public tests on alternative materials and protection.
Final remarks: Today, all the pole types admitted by the Memorandum of Understanding can be seen in the lagoon. Plastic poles are common for the mooring of small boats and as stilts in some stilt structures in…
D Tagliapietra
Evaluation of Decay Resistance of Copper-based Preservatives Treated-Wood exposed to different field test sites in Korea
2022 - IRG/WP 22-20679
…attack was evaluated by the indoor and outdoor field tests. In this paper, the outdoor field test results of ACQ-2, CuAZ-2, MCQ, and CuHDO-3 treated woods were reported, which were installed in 2012 and have been monitored for decay resistance. The tests were conducted at 6 different field test sites in Korea,…
W-J Hwang, S-M Yoon, Y Park, Y-S Choi, H-M Lee, J-W Kim
Studies into the effect of soil type and soil layer on the in-ground decay of European beech
2022 - IRG/WP 22-20681
…(Regosol), in adapted terrestrial microcosm (TMC) tests according to CEN/TS 15083-2 (2005). Soils were sampled (250 mm deep) from field sites and separated into their constituent layers to deliver three TMC setups; mineral soil layer only (“M”), mineral and organic layers (“OM”), and mineral, organic…
B N Marais, S Kovacs, M Jansen, C Brischke
Combining MRI and X-ray CT to monitor fungal decay of plywood and OSB in a lab test
2022 - IRG/WP 22-20683
…durability data is available for solid wood, the standard tests, mainly measuring the mass loss caused by decay fungi after sixteen weeks, do not offer much information on what is going on inside the wood during degradation. Notwithstanding that standard tests are excellent for testing the durability of a certain…
L De Ligne, T Núñez Guitar, C Vanhove, J Van Acker, J Van den Bulcke
Copper-octanoate - a potential reference preservative replacement for CCA in field test standards?
2022 - IRG/WP 22-20688
…mimicking poles of 15 x 15 cm cross-section. ENV 807 tests showed that a retention of 1,9 kg Cu/m³ (21 kg product/m³) fully protected the wood against biological attack in both soft-rot dominated garden compost soil and brown rot dominated sandy soil, to a level equal to CCA 9 kg/m³ and CC 10 kg/m³, while a…
R Ringman, M Westin, M Klamer, A Christof, F Friese
Using satellite-retrieved soil moisture data to model the decay risk of in-ground timber
2022 - IRG/WP 22-20689
…wood decay model based on terrestrial microcosm (TMC) tests. The resulting hazard map plotted dose as an indicator of in-ground wood decay based on differences in annual temperature and soil moisture characteristics. Unlike aboveground hazard maps, the dose presented is specific to in-ground conditions that…
P B van Niekerk, M Schönauer, B N Marais, C Brischke
Wood Protection Using Nano Metal Oxides in Propylene Glycol
2022 - IRG/WP 22-30760
…white-rot and brown-rot fungal growth. Fungal resistance tests using nanodispersion treated wood specimens shows that nano-ZnO dispersion in propylene glycol inhibited decay more effectively than commercially available ZnO aqueous dispersion. CuO was more efficient in preventing decay than ZnO dispersion of same…
S Nair, G B Nagarajappa, K K Pandey
Impregnation of wood with antifungal compounds from low-quality tree biomass
2022 - IRG/WP 22-30763
…wood against fungal decay. The results of the fungal tests clearly show that hydrophilic extractives of less-quality wood of pines and black locust inhibit both fungal growth and reduced fungal decay of wood. It was found that the wood extracts of pines and black locust can be referred as to natural…
V Vek, I Poljanšek, A Balzano, M Humar, P Oven