Your search resulted in 301 documents. Displaying 25 entries per page.
Preservative treatment of round bamboos by a new technique - Some further studies. Part 1
1990 - IRG/WP 3607
In general, the easy susceptibility of bamboos to wood destroying agencies is a major constraint in its rational utilisation. This is more so in tropical countries like India where wood destroying agencies are quite active. In an earlier publication, it was reported that round bamboo specimens of…
V R Sonti, B Chatterjee
Studies on the preservative treatment of round bamboos by a new technique
1989 - IRG/WP 3536
Nature has offered a versatile and cheap material bamboo, which is generally found to grow principally in forest areas from sea level to about 400 m wherever suitable combination of ecological factors prevail. This potential renewable natural resource has been since times immemorial, exploited by mankind for…
V R Sonti, S Sonti, B Chatterjee
A medium for mass culturing of a bamboo boring beetle Dinoderus minutus Fabricius
1983 - IRG/WP 1182
The bamboo is a traditional product of Japan. But its susceptibility to insects is one of the most important problems. The author has found that for the determination of the effectiveness of insecticides it is very easy to obtain sufficiently numerous adults of…
K Suzuki
Improvement and practical application of dry-type pressure treatment method
2025 - IRG/WP 25-20734
…means that dry-treatment can be introduced not only to lumber, but also to engineered wood, and it will be possible to respond to more consumer needs.
D Tezuka, C Igarashi
Evaluation of 'Deep Penetration Treatment' for wood preservation
2025 - IRG/WP 25-20746
…wood preservative onto properly incised dried lumber. Despite being a non-pressure treatment, DPT achieves penetration levels comparable to conventional pressure treatment. Unlike pressure treatment with water-based preservatives, DPT does not cause dimensional changes in lumber, eliminating the need for…
M Ikeda, T Shigeyama, Y Sugai
Durability of acetylated beech (Fagus sylvativa L.) laminated veneer lumber (LVL)
2024 - IRG/WP 24-30807
…material for structural products, like laminated veneer lumber (LVL). However, the use of these products is typically restricted to interior applications due to its high susceptibility to weathering and biological attack. Therefore, acetylation with acetic anhydride, was applied on single veneer sheets prior to…
M Slabohm, H Militz
Outdoor termite resistance performance of zinc borate (Borogard® ZB) treated parallel strand lumber (PSL) – 15 years field test results
2024 - IRG/WP 24-40999
This report discloses the outdoor termite resistance performance of PSL samples treated with zinc borate at a dosage of 0.85% BAE and 1.72% BAE in Wuxi, China. The outdoor field trial lasted for 15 years and observations were made after 6 months, 3 years, 5 ye…
S Shi, E Laval, K Lung, F Ascherl, R Williams, W Li, X Li
Quantifying metal migration from a deck constructed with copper-azole-treated lumber
2024 - IRG/WP 24-50391
…of this it is important to quantify chemical loss from lumber treated with available wood preservative systems so that their impact can be predicted for specific applications. This work describes an effort to measure the migration of copper from a newly installed deck made with hem-fir lumber pressure treated…
G Presley, M Konkler
Resistance of phenol formaldehyde impregnated beech (Fagus sylvativa L.) LVL against biodegradation in soil contact
2023 - IRG/WP 23-40965
…could be beech (Fagus sylvatica L.) laminated veneer lumber (LVL) impregnated with low-molecular phenol-formaldehyde (PF). PF resins are often used for bonding and impregnation purposes. In this research, low-molecular weight PF was used, which allows a penetration and fixation within the cell wall. Various…
M Slabohm, C Brischke, S Bicke, H Militz
Impacts of elevated moisture levels and subsequent drying on screwed
2023 - IRG/WP 23-40970
…timber, cross laminated timber (CLT) and laminated veneer lumber) are increasingly used in mid-to high rise structures in Australia where the climate is mainly sub-tropical with elevated moisture levels and high termite risk. Moisture intrusion poses a major challenge anywhere but becomes more critical under these…
C M T Roder, C D Gerber, J J Morrell
Japanese traditional wooden building construction project in Bangkok - Part 1 Project outline, building implementation and effects
2023 - IRG/WP 23-40992
…facilitate local construction of the buildings, pre-cut lumber was exported to Bangkok, Thailand, after being pre-cut in Japan. On site, the building was completed without serious problems, with local carpenters performing the construction under the guidance of Japanese engineers. During the planning of the…
S Murakami, K Kawaguchi, H Ishiyama
Effect of incised pattern on flexural strength of CLT
2023 - IRG/WP 23-40993
…was originally developed as a treatment method for sawn lumber and glulam used as sill members. In the treatment, materials are incised using specially designed blades and immediately sprayed with an oil-based wood preservative. The impact of incising on the strength performance and the preservative penetration…
T Mori, R Takanashi, T Miyauchi, Y Ohashi, S Isaji
Improving American Hardwoods Sustainability, Durability and Markets
2023 - IRG/WP 23-50378
…While the North American market has been lower for grade lumber over the past 14 years, they have slowly increased in exports. However, attempts to fight global deforestation and forest degradation have also led to other challenges, including the European Union adding geo-location requirements that impact small…
D Brooks, M Snow
Utilization of Pressure Treated Lumber in Cross Laminated Timber Manufacture and its Impact on Bondline
2022 - IRG/WP 22-40953
…integrity by constructing small-scale panels using treated lumber or treating panels after layup. Douglas-fir 2 x 6-inch lumber or untreated CLT panel sections were treated with one of three different preservative systems, pressure treatment with borates, pressure treatment with propiconazole, tebuconazole,…
G Presley, C Wainscott, J Valenti, S Noble
Durability of thermally modified western hemlock lumber against wood decay fungi
2022 - IRG/WP 22-40954
…the impact of thermal modification of western hemlock lumber durability against decay fungi for a single treatment process. Western hemlock lumber was thermally modified using a cycle with temperatures ranging from 80-170ºC and was cut into standard 19 mm blocks for testing according to AWPA method E10.…
G Presley, J Cappellazzi, I Eastin
Performance of resin-treated solid wood and laminated veneer lumber (LVL) under marine conditions
2021 - IRG/WP 21-10973
…focused on treatment of solid wood and laminated veneer lumber (LVL) with the thermosetting resin 1,3-dimethylol-4,5-dihydroxyethyleneurea (DMDHEU), its derivatives and low molecular phenol-formaldehyde (PF). The results evidenced that treatments with formaldehyde-containing thermosetting resins like DMDHEU and PF…
L Emmerich, C Brischke, S Bicke, H Militz
DuraSoft Project: a multidisciplinary approach for softwood protection
2021 - IRG/WP 21-50367
…relevant due the high availability of softwood lumber following the recent disasters caused in the Alps by Climate Change.
I Guarneri, V Moschino, N Nesto, T Marceta, M Sigovini, E Borella di Torre, L Dametto, S Pasqual, M Humar, B Lesar, T Cibic, V Natali, E di Poi, F Cerino, D Formasaro, M Kralj, F Relitti, C Balestra, M Celussi, A Franzo, A Volpi Ghirardini, M Picone, G G Distefano, M Russo, D Marchetto, R Rakar, I Trobec, D Marinic, G Rep, N Thaler, T Galvan, R Lazzarini, F Gombac, D Tagliapietra
Green Coloration of Wood in the Forest and Laboratory by Chlorociboria spp. – Applications for Furniture
2019 - IRG/WP 19-10947
…caused by living saprophytic fungi is commonly found on lumber. These fungi do not destroy the integrity of wood, but the discolorations they cause are often considered undesirable. In Tunbrigde Wells (Great Britain), seldomly found green colored wood, usually considered commercially irrelevant, was valued for use…
S Krause, W Unger, P Heydeck
Development of accelerated decay test for CLT using a fungus grown on agar medium
2019 - IRG/WP 19-20664
…wooden board which consists of several layers of sawn lumber stacked in altering directions. Therefore, a lot of large cross sections appear on all narrow faces of CLT. As water penetrates easily into timber from cross section, wooden material whose cross section is exposed to water in in a usage environment is…
T Miyauchi, K Kambara, W Ohmura, T Mori, H Matsunaga, N Hattori
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
…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 can be suitable for…
P-O Flaete
Preservative Treatment of CLT: An Example at Shimojishima Airport
2019 - IRG/WP 19-30748
…such as under the old German Standard DIN 68-800 where lumber was dipped in a 10% disodium octaborate tetrahydrate solution. The use of an inorganic salt as the active ingredient is also good in topical applications where organic systems can be destroyed by UV light during construction (Lloyd et al., 1998).…
J Lloyd, N Yamashita, A Taylor
Natural resistance of Bambusa vulgaris to termite and powder-post beetle attack in laboratory and graveyard tests
2018 - IRG/WP 18-10925
Deterioration is the major setback to the utilisation of bamboo products. To enhance bamboo utilization, an understanding of the level of resistance to degradation is important. In this study, level at which Bambusa vulgaris will naturally resistant attack by subterranean termites and powder-post beetles were…
N A Sadiku, S O Bada
Hydrolytic stabilization of chemically modified Bambusa vulgaris Shrad ex JC Wendl
2018 - IRG/WP 18-40830
The main drawback which greatly limit the utilisation of bamboos is their high moisture intake, biodegradation and physical properties changes with environmental variations. To prevent excessive dimensional changes and improve moisture properties of bamboo, Bambusa vulgaris was chemically treated with…
N A Sadiku, S M Akintayo
Effect of the Storage Time of Logs in Anti-Stain Treatment Effectiveness
2016 - IRG/WP 16-30683
Storage of green lumber, for 7 months, operationally treated with anti-stain products, depending on the storage time of the logs (10, 20 and 30 days) post harvesting allows to affirm that with increasing storage time of the logs, occurs a progressive increase in intensity,…
M A Peredo, C Barria
Durability of Thermally Modified Engineered Wood Products
2016 - IRG/WP 16-40745
…plywood, oriented strand board (OSB), laminated strand lumber (LSL), and laminated veneer lumber (LVL) were thermally modified as a post-treatment at 140 °C, 150 °C, 160 °C, 170 °C, and 180 °C using a closed, pressurized treatment method. Eastern larch OSB manufactured from heartwood and sapwood was also…
H M Barnes, M D Aro, A Rowlen