Your search resulted in 256 documents. Displaying 25 entries per page.
Colorant Treatments to Enhance the Weathering Resistance of Western Red cedar
2016 - IRG/WP 16-40737
Western redcedar is renowned for its decay resistance, but, like most wood products, it requires frequent maintenance in many exterior applications to maintain its appearance. To provide adequate long-term performance in exterior applications, it must be protected against light, water, and disfiguring fungal growth. Colorant treatments, with and without preservatives, were investigated for their a...
R Stirling, V Landry
Enhancing wood properties through bio-based and non-biocidal co-polyesters
2016 - IRG/WP 16-40740
The commonly used wood preservation treatments are nowadays facing huge environmental issues, as well as increasing public concern. As regards those concerns, legislation tends to regulate the use of biocidal preservation chemicals.
Thus, it does appear crucial to provide alternatives to the use of biocides to allow different outdoor uses of wood such as for, posts, decking, and cladding or even ...
C L’Hostis, M-F Thévenon, E Fredon, P Gérardin
New perspectives for wood protection: enzyme-based treatments
2016 - IRG/WP 16-40742
Wood protection research is continuously looking for more benign and effective treatments. One of the main concerns deals with the toxicity of the active compounds employed in the formulations of the preservatives, since they could become a health and environmental issue. Secondly, long-lasting treatments are preferred in order to increase the service life of the treated wood. Weathering condition...
C Fernández-Costas, S Palanti, M Á Sanromán, D Moldes
Development of Wood Modification – High melting point wax and hot oil treatments
2016 - IRG/WP 16-40768
This study covers an introduction to the projects where new facilities were created for developing wood modification. In this new research environment it is possible to treat wood with versatile equipment. First modifications with this equipment are going to be done in high temperature and pressure using high melting point waxes and hot oils.
Earlier studies, tests and commercial products show...
H Turunen, L Linkosalmi, J Peura, O Paajanen
Novel wood treatments improve resistance to the wood-boring marine isopod Limnoria quadripunctata
2017 - IRG/WP 17-10899
The marine isopod Limnoria quadripunctata degrades wooden structures in the sea and causes significant economic damage. Broad-spectrum biocides and naturally resistant tropical hardwoods have failed to prevent feeding by Limnoria and have caused ecological damage. Wood modification is now the favoured method, and resin-based modifications have been effective, while the efficacy of silica-based mod...
H Bowen, M Montibus, M Kutnik, S M Cragg
Ensuring Quality of Treated Wood – Regulations, Certifications and Associative Background in the Field of Wood Protection in Europe
2017 - IRG/WP 17-20626
Beside legal requirements, buyers and end-users of wood preservatives and/or of treated wood and wood-based materials may require additional warranties regarding the quality and the performance of the products available on the market. These greatly enhance the confidence of end-users and the chance for a product of being marketed with a quality label. Additionally, quality control systems and trai...
M Kutnik, M Klamer, E Melcher
Guidance on the European Biocidal Products Regulation Concerning Efficacy of Wood Preservatives
2017 - IRG/WP 17-20627
In Europe wood preservatives belong to Product Type 8 (PT8) of the Biocidal Products Regulation (BPR, EU n. 528/2012), which regulates the authorisation of biocidal active substances and products in the European market.
The applicant, who aims to obtain authorization to place a product onto the European market, needs to submit data to substantiate the label claims for the intended uses. Label cla...
I Stephan, M Kutnik, E Conti, M Klamer, L Nunes, J Van Acker, R Plarre
Is the SPM 15 effective? Survival of Pine Wood Nematode under thermal treatments
2017 - IRG/WP 17-40775
The pine wood nematode Bursaphelenchus xylophilus (Steiner and Buhrer) Nickle (PWN) is the causal agent of “Pine wilt disease” affecting coniferous forests, and since its detection in 1999 in Portugal, has obligated the European Union to take action to prevent its spread (Decision 2006/133/CE). The main measure applied is the International Standard for Phytosanitary Measures ISPM No. 15 (ISPM ...
L Robertson, M Conde, J C Cabrero, F Llinares, M T Troya
Biocontrol of wood decay insects and nematodes as an alternative to traditional chemical treatments
2018 - IRG/WP 18-10914
The protection of wood has been defined until relatively recently, as the application of a chemical to increase its durability. On the other hand, society is becoming more and more demanding in terms of the use of products which have the minimum ecological impact. This has led many countries to reduce the list of biocidal products that can be used (European Biocides Regulation), therefore it is ne...
L Robertson, J F Galván, F Llinares, R Viñambres, M T de Troya
Enhancing service life performance of oak decking and cladding using organosilicon treatments
2018 - IRG/WP 18-40838
The Life+ project SILEX, in full “Improving sustainability of construction materials using innovative Silicon based treatment” started in April 2013 and was finalized mid 2017. The aim of this project was to demonstrate that a new class of compounds can be used for wood treatment for an extended service life combined with enhanced new testing methodology. Ultimately, it was the intention to de...
J Van Acker, J Van den Bulcke, J-P Lecomte
Efficacy of microwave treatments against Pine Wood Nematode
2019 - IRG/WP 19-20658
The pine wood nematode Bursaphelenchus xylophilus (Steiner and Buhrer) Nickle (PWN) is the causal agent of “Pine wilt disease” affecting coniferous forests, and since its detection in 1999 in Portugal, has obliged the European Union to take action to prevent its spread (Decision 2006/133/CE). One of the main measures applied is the International Standard for Phytosanitary Measures ISPM No. 15 ...
L Robertson, M T Troya, F Llinares, J C Cabrero
Protecting Sustainable Wood Infrastructure ̶ Improving the Performance of Poles, Piles, Ties & Timbers with Dual Treatments
2019 - IRG/WP 19-30735
Wood is by far the best structural material in terms of environmental impact, as shown by a number of LCA studies. This environmental impact superiority can be improved if the longevity of the commodity is extended. The main durability concern in large cross-section treated materials is the susceptibility of the heartwood to decay, as it is not typically treatable using traditional methods. This ...
J Lloyd, A Taylor, C Brischke, N Irby, M Manning
Boron dual-treatments for Douglas-fir utility poles: Tracking boron migration over time
2019 - IRG/WP 19-30739
The potential for using boron pressure-treatment prior to over-treatment with conventional, heavy-duty wood preservatives to limit internal decay in-service was investigated in two field tests on Douglas-fir utility poles. Pole sections were pressure-treated with disodium octaborate tetrahydrate (DOT) and then over-treated with either pentachlorophenol or copper naphthenate in oil. Alternatively, ...
J Cappellazzi, M J Konkler, J J Morrell
Alternative fumigants to Methyl Bromide for wood products: Review of the development and preliminary tests of Ethane Dinitrile (EDN) in Canada
2019 - IRG/WP 19-30743
This paper reviews recent developments and updates in the search for alternative fumigants to ozone-depleting methyl bromide, for wood products fumigation. The absence of alternative treatments may result in significant market disruption if further restrictions on methyl bromide are imposed. This paper reviews key challenges and key attributes of an ideal fumigant and also the status of standardis...
A Uzunovic
Economic and Alternative Preservative Research with an Overview of its Impact on the Dynamics of Wood Tie Markets and Railroads
2019 - IRG/WP 19-30751
This presentation will discuss the Railway Tie Association’s (RTA) efforts in economic research for the North American wood tie industry, along with decades-long research into improving wood preservation processes and its resulting economic impact for railroads. Ongoing research is continuing to expand the knowledge-base by comparing existing standard creosote (C) and borate-creosote (B-C) dual...
J C Gauntt
Development of beech wood thermo-chemical modification treatments based on different vinylic derivatives of glycerol and polyglycerol
2019 - IRG/WP 19-40855
In this study, a combination between chemical and thermal wood modification has been investigated. Seven types of a low concentration of 10% aqueous additive solution of vinylicglycerol [glycerol-maleic anhydride (Gly-MA), glycidyl methacrylate (GM), and Glycerol methacrylate-maleic anhydride (GM/MA(2eq))], vinylicpolyglycerol [polyglycerol-maleic anhydride (PG-MA), polyglycerol methacrylate (PGM...
M Mubarok, S Dumarcay, H Militz, K Candelier, M-F Thevenon, P Gerardin
Improvement of wood decay and termite durability resulting from combined treatments based on borax/phenol-formaldehyde impregnation followed by thermal modification
2019 - IRG/WP 19-40871
This study determined the factors influencing the boron content after leaching of pine blocks impregnated with aqueous solution of phenol-formaldehyde (PF) resin with or without borax and subjected to heat treatment by response surface methodology. An experimental design permits to analyze the effects of heat treatment temperature (150, 185 and 220°C), curing time (5, 12, 5 and 20 hours), resin c...
S Salman, M-F Thevenon, A Petrissans, S Dumarcay, P Gerardin
Promoting Commercially Available Epoxy Resins for Non-biocidal Wood Preservation
2019 - IRG/WP 19-40877
Commercially available epoxy and polyamine resins were evaluated with the aim of developing new non-biocidal wood preservation treatments. A simple method allowing the impregnation of wood by vacuum double impregnation followed by a curing process was developed for two reference species, beech Fagus sylvatica and Scots pine Pinus sylvestris. The tested products were evaluated for their ability to ...
P Poveda, M Mubarok, S Dumarcay, M Montibus, I Le Bayon, M Kutnik, P Gerardin, F Simon
Study on Nailed Joint with Iron Contamination. Part1: Shear Performance of Nailed Joint with Iron Contamination
2019 - IRG/WP 19-50349
In Japan, The building standard law was amended in 2000.1) The use of metal joint was obligated by this law. Since then, metal joints have been largely used for wooden buildings. Also, Act on the Promotion of Popularization of Long-life Quality Housing was enacted in 2009 and leaving Long-life Quality Housing has been focused on2). However, leaving houses to posterity for a long time causes severa...
R Nakano, D Nakano, H Ishiyama
Evaluation of ecotoxicological effects of different coniferous wood treatments on two marine bioindicator species
2022 - IRG/WP 22-10999
Coniferous wood panels (Picea abies) were treated with two concentrations of copper-based impregnating agent to increase its durability in marine and brackish environment. In order to assess the environmental compatibility of the treatments a laboratory experiment was conducted with two marine invertebrate species: bivalve Mytilus galloprovincialis and a gastropod Steromphala albida. The bioindica...
T Marčeta, N Nesto, I Guarneri, D Tagliapietra, V Moschino
Brief introduction to a research project on preparations of various paste formulations from boron, fluoride and copper for supplemental treatments
2022 - IRG/WP 22-30759
Wood preservatives to be used for supplemental purposes are present in various forms such as powders, liquids, rods, pastes, or gels. Boron compounds have been receiving a lot of attention in supplemental treatments since they have good mobility in wood. Application of boron compounds via internal treatments is vital to stop decay to be occurred inside the wood since large wood elements are too th...
E E Soytürk, D Bakır, E Terzi, C Köse, S N Kartal
A six-year ground proximity trial of TRU-CORE treatments at Innisfail, Queensland
2023 - IRG/WP 23-30775
This article describes an H3 (above ground outdoor) ground proximity field trial that compares the performance against decay fungi of TRU-CORE (also known as the Buffered Amine Oxide Enhancement System) Copper Quat (CQ) with CCA and commodity Alkaline Copper Quat (commodity-CQ) treatments, all in Pinus radiata. The retentions achieved reflected commercial practice, where higher mean retentions are...
L Cookson
Establishing the minimum effective penetration of wood preservatives in the refractory heartwood of E. nitens
2023 - IRG/WP 23-30780
Conventional pressure treatment of many Australian hardwoods results in little to no penetration of heartwood and a non-uniform envelope treatment of <5 mm surrounding a mostly untreated core. This is a major issue for many of the low durability plantation hardwood timbers that are grown in Tasmania, which contain high percentages of heartwood. Long term studies on softwoods such as spruce decking...
J R Vargas, J J Morrell, L Yermán, K C Wood
A novel wood preservative with vegetal extracts-cypermethrin mixture protects H2-weathered envelope-treated tropical hardwood kempas against Coptotermes termites
2023 - IRG/WP 23-30794
In accordance with sustainability development initiatives by commercial wood protection to conceive of cost-effective, environmentally acceptable wood treatment solutions replacing traditional biocides, this paper reports an aboveground subterranean termite test of termite-susceptible heartwood blocks of the tropical (Malaysian) structural hardwood kempas (Koompassia malaccensis) envelope-treated ...
D Messaoudi, A H H Wong
Evaluation of the efficacy of silver nanoparticles and chitosan oligomer composites as poplar wood protective treatments against termites
2023 - IRG/WP 23-40963
Populus × euramericana ‘I-214’ (poplar) is a fast-growing species widely distributed throughout the world, and in the Castile-Leon region of Spain it accounts for more than 50% of all plantations. Its wood is becoming increasingly appreciated, yet its low durability against xylophagous agents —termites being one of the most aggressive and destructive in warm climates— continues to be a li...
E Spavento, M T Troya, M Casado-Sanz, J Martín-Gil, P Matín-Ramos, L Robertson, L Acuña-Rello