Your search resulted in 1362 documents. Displaying 25 entries per page.
Biological resistance of aldehyde-treated wood
1994 - IRG/WP 94-40018
Biological resistance of wood treated with aldehyde cross-linking agents such as glyoxal, glutaraldehyde and dimethylol dihydroxy ethyleneurea (DMDHEU) were investigated. Sapwood blocks of Japanese cedar and Japanese beech, measuring 20 x 20 x 10 mm³ (T x R…
S Yusuf, Y Imamura, M Takahashi, K Minato
Biological resistance of electrolessly plated wood (1). Preliminary report
1994 - IRG/WP 94-40024
Surface metal coating is considered to improve biological resistance of wood as some metal ions are fungitoxic. Six wood species (three softwoods: Cryptomeria japonica, Tsuga heterophylla and Larix spp; three hardwoods: Fagus crenata, Acer mono and Betula platyphylla) were electrolessly plated with nickel…
M Hasegawa, K Tsunoda, T Yoshimura
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 Un…
W Scheiding, K Jacobs, S Bollmus, C Brischke
Improvement of some technological and biological properties of poplar wood by impregnation with aqueous macromolecular compounds
1992 - IRG/WP 92-3721
…to elucidate whether some technological properties and the resistance against fungal attack could be improved by impregnation with water-soluble resins. The results showed that swelling and shrinkage of poplar wood may considerably be reduced by a treatment with certain resins. The anti-shrink efficiency (ASE)…
R D Peek, H Militz, J J Kettenis
The biological effectiveness of wood modified with heptadecenylsuccinic anhydride against two brown rot fungi: Coniophora puteana and Gloeophyllum trabeum
1992 - IRG/WP 92-3705
…anhydride (ASA). This modification gave good resistance to decay brought about by the brown rot fungi Coniophora puteana and Gloeophyllum trabeum during the twelve week exposure period. Results indicated that there was a good correlation between increased loading of modifying reagent and an increase in…
C Codd, W B Banks, J A Cornfield, G R Williams
Biological resistance of furfuryl alcohol-treated wood
1992 - IRG/WP 92-3703
Biological resistance of FFA (furfuryl alcohol)-treated wood was investigated in relation to the rise of ASE (anti-swelling efficiency) resulting from the treatment. Sapwood blocks of Japanese red pine, cedar and beech were vacuum-impregnated with various…
J Y Ryu, Y Imamura, M Takahashi
For the understanding of biological strategies to sustainable pest management: the case of Nasutitermes corniger
2018 - IRG/WP 18-10907
…believe that increasing our knowledge of this species’ biological strategies is the key to progress in the challenging question of their sustainable management.
I Boulogne, N Amusant, R Constantino, M Falkowski, A M S Rodrigues, E Hoël
Dimensional stability, biological resistance, and mechanical properties of phenol-resin-treated particleboard
1990 - IRG/WP 3622
…resin-solids worked well to enhance decay and termite resistance of particleboards.
Y Imamura, H Kajita
Biological resistance of phenol-resin treated wood
1990 - IRG/WP 3602
Biological resistance of PF (phenol formaldehyde resin) - treated wood has been tested in relation to the resin properties, wood species and biological factors. When tested using water-soluble PF (mol. wt. 170), ca. 10% RI (resin impregnation) was enough to…
M Takahashi, Y Imamura
Biological degradation resistance of pine wood treated with dimethylol compounds
1989 - IRG/WP 3528
The study reports the increase of dimensional stability and biological degradation resistance of pine wood (Pinus sylvestris L) after impregnation with dimethyloldibydroxyethyleneurea. Decay resistance was determined according to BS 838:961. Nearly complete protection against Coniophora puteana, (Schum.ex Fr. Karst)…
C L Videlov
Study on Biological Distribution to Conserve the Tripitaka Koreana woodblocks in Haeinsa Temple
2015 - IRG/WP 15-10844
…Koreana was built in 15th century. In recent days, biological damage becomes a serious problem to wooden cultural heritage including historical wooden buildings with global warming. In this study, termite monitoring on whole Haein-sa temple area and distribution investigation of insect and microorganism…
Si Hyun Kim, Hyun Ju Lee, Yong Jae Chung
Biological Performance of Triadimefon in combination with Tebuconazole in laboratory and field tests
2015 - IRG/WP 30668
The usage of Triazole-combinations for wood preservatives is common practice in several countries. Especially the combination of Tebuconazole and Propiconazole is preferred for this application due to its broad spectrum of efficacy against wood destroying fung…
P Meckler, T Jaetsch
Modern Instrumental Methods to Investigate the Mechanism of Biological Decay in Wood Plastic Composites
2014 - IRG/WP 14-40674
…accurate in the detection of voids created due to biological decay. No obvious relationship was established between the presence of free water detected by MRI and the average volume of voids detected by CT. Scanning electron microscopy (SEM) confirmed the presence of fungal mycelia in the exposed commercial…
G Sun, R Ibach, M Gnatowski, J Glaeser, M Leung, J Haight
Biological effectiveness of ground-contact wood preservatives as determined by field exposure stake tests
1984 - IRG/WP 3297
…results: The CCA preservatives provided excellent biological protection to treated stakes, especially against fungal attack. The CCA Type I, currently approved for use under South African conditions is not inferior to the CCA Type II during long-term ground-contact exposure if the active elemental contents…
W E Conradie, A Pizzi
Chemical and biological investigations of double-vacuum treated windows after 5 years in service
1983 - IRG/WP 3219
…for 4.5 to 5.5 years, samples were taken for chemical and biological analyses, the objective being to find out to what extent the TBTO had been degraded but also to get an idea what species of micro-organisms had invaded the wood and if the protection against decay was still sufficient.
J Jermer, M-L Edlund, B Henningsson, W Hintze, S V Ohlsson
Biological degradation resistance of wood acetylated with thioacetic acid
1983 - IRG/WP 3223
…wood components, preliminary investigations on the resistance of wood acetylated with thioacetic acid were carried out. Tests against a brown rot fungus (Poria monticola) were carried out using soil block method with chir, a softwood. The wood exhibited good resistance to this fungus at WPG around 18.…
S Kumar, S C Agarwal
Chemical and biological investigations of double-vacuum treated windows after 7½ years in service
1985 - IRG/WP 3339
…degrades to di- and monobutyltin compounds and that the resistance of the wood against decay decreases. An investigation 2.5 years later of the same windows shows that the degradation of TBTO proceeds fast. After 7.5 years in service only 15-35% of the remaining organotin compounds consisted of TBTO. A clear…
M-L Edlund, J Jermer, B Henningsson, W Hintze
The Technical Criteria on Biological Evaluation of Wood Preservatives for Use Category C4.1 in Southern China
2012 - IRG/WP 12-20481
According to the Regulations on Pesticide management of the People's Republic of China, wood preservatives belong to agrochemicals. The establishment of registration system on wood preservatives would be benefit to management of preservatives, including t…
Xingxia Ma, Mingliang Jiang
The assessment of biological and mechanical properties of wood treated with ionic liquids – N,N-dimethylamine and 1-decylimidazole derivatives
2012 - IRG/WP 12-40582
…characterised by thermal stability, may be applied as biologically active components of wood impregnates in combination with other biocides.
W Przybylska
Wood-leather panels – A biological, fire retardant building material
2012 - IRG/WP 12-40615
The poor flame retardant properties of wood-based products are among the severest obstacles, hindering its use in the commercial building sector. Recently, some attempts to improve the fire properties, relying on inflammable salts or reactive halogen compounds…
S Wieland, U Stöckl, T Grünewald, S Ostrowski, A Petutschnigg
The potential of propolis and other naturally occurring products for preventing biological decay
2011 - IRG/WP 11-30575
The potential of using a range of naturally occurring plant extracts and propolis from bee hives for enhancing the durability of timber in service as well as helping with the conservation of archaeological timbers is considered in this paper. Results reported…
D Jones, N Howard, E Suttie
Effect of Coatings on the Durability of Birch and Spruce Plywood. Part 2: Biological Durability
2010 - IRG/WP 10-40527
…test EN 12038. The most important factor to affect on the biological performance of birch plywood, coated and uncoated, was edge sealing. For spruce plywood edge sealing had a smaller effect. However, in spite of positive effect against decay, edge sealing did not prevent wetting during the decay test. One year…
A Nurmi, H Viitanen
The Chemical and Biological Properties of Polymeric Betaine
2009 - IRG/WP 09-30512
…This paper summarizes the chemical, physical, and biological properties of DPAB.
H Härtner, S Schmitt, Futong Cui, H M Barnes
Use of biological and low toxicity products against subterranean termites
2009 - IRG/WP 09-20410
…effectiveness of low toxicity products and products of a biological origin using various methodologies (physical-chemical barriers, active barriers, baits and treated wood) with the intention of evaluating the possible substitution of the most ecologically aggressive chemical products as well as to introduce new…
M T Troya, M J Prieto, F Rubio
Ensure Durable Wood-Frame Construction under the Climate and Biological Hazards in Shanghai
2009 - IRG/WP 09-20413
This paper provides technical background for developing durability-related provisions for the Shanghai wood-frame construction code. It summarizes the related climate, decay and termite hazards in this area as well as traditional durability solutions used for…
Jieying Wang, Chun Ni, Jiahua Zhang