Your search resulted in 367 documents. Displaying 25 entries per page.
Corrosiveness of metal by copper-based preservatives
2006 - IRG/WP 06-40329
The corrosive rates of 4 types of metal as well as epoxy-coated metal by a variety of preservatives derived from different copper source and ingredients were conducted in this paper. The main results shown that: CCA is less corrosive to red brass and Q235A steel than other copper formulations; Copper-based preservatives such as ACQ and copper azole derived from basic cupric carbonate or cupric hyd...
Ying Zhang, Mingliang Jiang
Laboratory evaluation comparing three commercial termite baits based on chitin synthesis inhibitor (CSIs) against the subterranean termites Coptotermes acinaciformis (Froggatt) and Mastotermes darwiniensis Froggatt
2007 - IRG/WP 07-10625
This laboratory bioassay report describes laboratory evaluation undertaken to compare the efficacy, and palatability of Requiem®, Nemesis® and Sentricon® AG as candidate bait toxicants against the subterranean termites Coptotermes acinaciformis (Froggatt) and Mastotermes darwiniensis Froggatt. The laboratory bioassay results confirmed palatability and efficacy differences between the three comm...
B Ahmed
A roadmap for performance-based specification of wooden components based on service life prediction
2007 - IRG/WP 07-20351
The need for an unified and harmonised system for performance classification and specification of wood and wood-based products in Europe emanates from requirements of users and the European Construction Products Directive, CPD. A road to a feasible specification system is outlined. Exposure-related performance prediction was worked out as a key task on the way to product specification. Therefore s...
C Brischke, A O Rapp
Use of the Digital Refractometer for the On-site Analysis of Copper-based Preservative Systems
2007 - IRG/WP 07-20371
In some counties, there are no on-site chemical analysis methods available for treatment plants to use to determine the key active ingredients in the preservative treatment solutions. The complexity of the sophisticated methodology; cost of analytical instruments and training required for operating these instruments in treating plant level are the reasons for lacking such practice. In this paper...
L Jin, T Cashman, A Preston, J Trompetter, H Trompetter
Some textile auxiliaries as wood protective agents
2007 - IRG/WP 07-30417
This study evaluated some textile auxiliaries applicable for wood protection. Commercial alkoxysilane quarternary ammonium formulation and fluorocarbon based water-oil repellent were tested for their ability to provide hydrophobicity and antifungal effect to solid wood samples. Scots pine (Pinus sylvestris L.) sapwood samples were impregnated with 25, 50 and 100 % concentrations of the above menti...
E Dizman, A Temiz, N Terziev, Ü C Yildiz
Amine Oxides for Use in Wood Protection: II: Water Repellent Agents for Wood
2007 - IRG/WP 07-30426
Wood treated with cetyl and stearyl amine oxides was evaluated to determine its long term water repellency. Comparative water uptake data, generated during two years of outdoor exposure, illustrated that Lonza’s products, Barlox® 18S (N-octadecyl-N, N-dimethylamine oxide) and Barlox® 16S (N-hexadecyl-N, N-dimethylamine oxide), were effective water repellent agents, imparting lasting water res...
Xiao Jiang, L Walker
The effect of brighteners on wood surface aesthetics – exploring the use of various organo-phosphonates based precursors
2007 - IRG/WP 07-30441
Freshly cut hardwood lumber such as white oak, red oak, beech, or redwood are rich in mineral stain (mostly iron and calcium), which provides a strong discoloration of the wood surface significantly influencing the aesthetic of the wood surface and strongly affecting the cost of this lumber. The influence of mineral stain on soft wood discoloration (Southern Yellow Pine, Douglas fir, etc.) is les...
R Craciun, P Mitchell
Control of Moisture Content in Wood Materials for Mold Growth
2007 - IRG/WP 07-10630
Mold growth on wood materials is a major concern for house owners, as it can cause health and aesthetic problems. Mold fungi, present everywhere, usually appear as black or gray patches on wood surfaces in humid environments, and are common in houses. Like any living organism, molds need food, water, oxygen, and a specific temperature range in order to grow. To avoid mold growth on wood materia...
Dian-Qing Yang
Do insects infest wood packing material with bark following heat-treatment?
2007 - IRG/WP 07-10633
As a result of international trade, many bark- and wood-infesting insects are inadvertently transported in wood packing materials (WPM) such as crating, dunnage, and pallets. WPM is suspected as the likely pathway for most of these borers, although the exact mode of entry into the USA is unknown for all 25 borers. The top 10 countries of origin were, in decreasing order, Italy, Germany, China, Spa...
R A Haack, T R Petrice, P Nzokou, D P Kamdem
Laser stain removal of fungus-induced stains on paper-based cultural relics
2007 - IRG/WP 07-40389
Laser techniques has been developed and applied in commercial use for 40 years, but it has not been used successfully to remove stains from paper-based cultural relics . The purpose of this study was to investigate the paper cleaning by using a technique of Nd-YAG laser. Artificial stained papers were inoculated with fungi and then were treated at different laser cleaning parameters, in order to f...
Tsang-Chyi Shiah, Han Chien Lin
Difficulties applying Heat Treatment according to ISPM No. 15, when fast growth species are used
2007 - IRG/WP 07-40386
In 2002, the Interim Commission on Phytosanitary Measures (ICPM) adopted the International Standard for Phytosanitary Measures (ISPM) No. 15 (Guidelines for regulating wood packaging material in international trade). Two treatments are recognized: Heat Treatment (HT), in which wood must be heated to a core temperature of 56°C for 30 minutes, and fumigation with methyl bromide. As the last treatme...
O Encinas, J. I Briceño
Brief introduction of a research project on the wood materials from an ancient Byzantine port unearthed during drilling for underground rail tunnel in Istanbul
2008 - IRG/WP 08-10641
A research project has been recently started to evaluate some properties of wooden materials from the biggest port of ancient times called Port of Theodosius I in Istanbul, Turkey. The ruins of the ancient Byzantine port during the excavations were recently uncovered in the Yenikapi site where an underground rail tunnel construction has been in progress in Istanbul. The wooden objects unearthed fr...
A D Dogu, C Köse, S N Kartal, N Erdin
Water Absorption of Various Building Materials and Mold Growth
2008 - IRG/WP 08-10657
Mold growth is a major problem for house owners, as it often occurs on the surface of building materials in damp houses. The principal method to control mold growth on building materials is to prevent water penetration into the materials. A study was recently conducted to determine water absorption rates of different wood species and panel materials used as building materials, when water intrusi...
Dian-Qing Yang
Service life prediction of wood: scale-dependent tools within a bio-engineering framework
2008 - IRG/WP 08-20387
Service life prediction (SLP) is a complex yet essential method for the building industry. Accurate and precise assessment of the components is crucial for a strong position of wood on the market. As it is a biological material, wood has an inherent variability and is susceptible to fungal attack. Therefore a profound knowledge of these characteristics is the corner stone of SLP for wood products....
J Van den Bulcke, J Van Acker, M Stevens
Field Stake Tests with Copper-based Preservatives
2008 - IRG/WP 08-30459
The performance of field test stakes derived from commercially produced ground contact retention
copper quat preservatives based on either soluble copper complexed with ethanolamine, or from a water-based suspension of particulate micronized copper compounds, as well as untreated southern yellow pine controls, is compared at two decay test sites. After less than one year in field test some of t...
A Preston, L Jin, D Nicholas, A Zahora, P Walcheski, K Archer, T Schultz
Performance of wood-based composites in a protected aboveground test in southern Japan
2008 - IRG/WP 08-40391
Five kinds of untreated wood-based composites (medium density fiberboard, hardwood plywood=HP, softwood plywood, particleboard and aspen oriented strand board, hereinafter abbreviated as MDF, HP, SP, PB and OSB, respectively) were exposed to subterranean termites and microbial (decay) attack under protected aboveground conditions in a southern part of Japan (Kagoshima Prefecture) for six years. An...
K Tsunoda
Wood plastic composites from modified wood. Part 3. Durability of WPCs with bioderived matrix
2008 - IRG/WP 08-40423
The decay resistance of fully bio-derived wood plastic composites, WPCs, was tested in both laboratory and field tests. The laboratory tests were performed according to modified versions of AWPA E10 (soil-block test) and ENV 807 (tests in three un-sterile soils) and the field tests according to EN 252 (stakes in ground) and EN 275 (resistance to marine borers). The WPC materials for laboratory tes...
M Westin, P Larsson Brelid, B K Segerholm, M Van den Oever
Categorization of 300 timber, bamboo and cane grown in Bangladesh based on their families, origins, growths, physical and mechanical properties
2009 - IRG/WP 09-10684
In this study the 300 timber, bamboo and cane plants grown in Bangladesh have been classified into various categories based on their taxonomic families, origin of species, rate of growth, color of wood, texture of wood, shrinkage of wood, equilibrium moisture content (EMC) of wood, flammability of wood, cutting and sawing properties of timber, finishing and polishing qualities of wood, machining p...
A K Lahiry
A theoretical-industrial correlation and perspective on copper-based wood preservatives - a review of thermodynamic and kinetic aspects on copper-wood fixation mechanism
2009 - IRG/WP 09-30499
Copper was and it will continue to remain one of the key active component in wood protection industry. Over the past decades, a significant effort from R&D teams in industry, academia and research institutes was directed toward understanding the copper-wood fixation mechanism, optimising the copper retentions in the wood and reduce leaching in order to maximized performance, prolong the lifetime o...
R Craciun, M Maier, J Habicht
Biological Treatment to Improve Wood Product Quality and Durability - Fifteen Years of Effort and Experience at FPInnovations-Forintek Division
2009 - IRG/WP 09-40444
Wood plays an important role in the world economy. However, wood is subject to attack from wood-degrading fungi and insects and durability and quality of wood products are becoming increasing concerns for consumers. Development of effective and low environmental impact technologies to improve wood product quality and durability will be required to address these concerns. The application of a bio...
Dian-Qing Yang
Biological Performance of Boron-based Chemicals Treated Wood Composites
2009 - IRG/WP 09-40464
In this study, the biological performance of wood-based composites panels treated with boron containing chemicals against to a fungus was determined. Boric acid, borax, zinc borate and agricultural borate (Tarım-bor™), developed and patented by National Boron Research Institute, were mixed with wood chips or fibers and then particleboard, medium strand board and middle density fiberboar...
Ü C Yıldız, H Kalaycıoğlu, S Yıldız, A Temiz, E Tomak Dizman, A Çavdar Dönmez
Extensive review of fire-retardant wood composites researches
2009 - IRG/WP 09-40471
The increased demand for public safety has led to greater interest in fire retardant materials in the recently years. Legislation relating to safety in the home, in work locations, on transport facilities and in public places continues to produce new regulation. There is average 524 thousand structure fires occurred every year in US, 3757 civilian in death, about 20 thousand civilian in juries, di...
Zhilin Chen, Zhiyong Cai, Feng Fu
Progress in Fire-Retardant Research on Wood and Wood-Based Composites: a China Perspective
2009 - IRG/WP 09-40476
The fire retardant research on wood and wood-based composites, which was carried out in China in the past two decades, was reviewed with 55 references. While many kinds of fire retardants for wood and wood-based composites have been studied, the mainstream is still the compound or the mixture containing phosphorus, nitrogen and boron elements, which can be used in the form of water solution in th...
Wang Qingwen, Wang Fengqiang, Hu Yunchu, Li Jian
Physical and Mechanical Properties of Bamboo Oriented Strand Board Treated with Copper-based Preservatives
2009 - IRG/WP 09-40482
Oriented strand board (OSB) has been gradually accepted, used and developed in China. Bamboo is a renewable and potential non-wood fibre resource for making OSB. But the nature of bamboo makes its products including bamboo OSB (BOSB) more prone to decay and mold. Protection BOSB from biodegradation is the key both to efficiently using bamboo resource and to improving the durability of the final pr...
Juwan Jin, Daochun Qin
Modelling hyphal growth of the bio-incising fungus Physisporinus vitreus
2010 - IRG/WP 10-10710
The white-rot fungus Physisporinus vitreus preferentially degrades the pit membranes of bordered pits in tracheids and subsequently enhances wood permeability. Thus, P. vitreus can be used to improve the uptake of wood preservatives and environmentally-benign wood modification substances. This process can be used to enhance the use and sustainability of native conifer wood species by the wood indu...
M Fuhr, C Stührk, F W M R Schwarze, M Schubert, H J Herrmann