IRG Documents Database and Compendium


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Your search resulted in 217 documents. Displaying 25 entries per page.


Selection of an appropriate coating system for wooden boats to be used in fresh water
2009 - IRG/WP 09-40472
Properties of several, most commonly used protective low-price coatings, which are used by the pletnja boat owners in Bled, Slovenia, were extensively studied. The aim of this professional, practically oriented study was to compare various coating systems, and to recommend the most suitable one to the boat owners. Regarding specific use conditions, the following properties, including their resista...
M Petrič, B Kričej, A Logar, M Pavlič


Control of Reticulitermes grassei as a pest in Spain: Termite distribution in an urban area
2010 - IRG/WP 10-10719
The European subterranean termite Reticulitermes grassei Clément, 1978, has been an important pest in Palenciana, a locality in the southern province of Cordoba (Spain) for a long time. The different stages of the pest elimination process have been studied and are presented here. Firstly, a through inspection of all town dwellings was conducted in order to determine a theoretical affected area of...
E Alcaide, R Molero, J Diz, M Gaju


The Relative Performance of an Organic Preservative System under UC3A and UC3B Conditions using Two Test Methods
2010 - IRG/WP 10-20429
Coated L-joints have been used for decades to evaluate the performance of wood preservatives in protected environments. This study was conducted using matched coated and uncoated L-joints to simulate above ground protected and unprotect exposures. When exposed to constant moisture in a greenhouse environment, coated and uncoated L-joints give very similar performance results. In contrast, exposi...
C F Schauwecker, A Zahora, A F Preston


Simulation and Investigation of Wood Degradation by Erosion Bacteria in Laboratory Experiments
2010 - IRG/WP 10-20431
A Microcosm experiment was successfully set up to establish, monitor and manipulate bacterial wood degradation under low oxygen conditions. Sound pine sticks were placed in waterlogged sediment from a heavily decayed pine pile foundation site in Amsterdam. The system was subject to different gassing treatment regimes in order to investigate the role of oxygen in the bacterial degradation process o...
J Gelbrich, E I Kretschmar, N Lamersdorf, H Militz


Classification of wood materials using Fourier Transform Near Infrared Spectroscopy and multivariate analysis
2011 - IRG/WP 11-20471
A distinction between preservative-treated wood and non-treated wood can be demonstrated by the combination of Fourier Transform-Near Infrared Spectroscopy (FT-NIRS) and Multivariate Analysis (MVA). This technique is non-destructive, quick, easy to use and can be portable. The calibration models for different heavy metals are set up using principal component analysis (PCA) to classify species of t...
M A Bouslamti, M A Irle, C Belloncle, V Salvador, S Hulot, B Caron, E M Qannan


Implementation of a Quality Assurance System for thermally modified timber (TMT) by the Association of Central European TMT-Producers
2011 - IRG/WP 11-40558
Due to increasing market shares of thermally modified timber (TMT) in Europe, a working group of ten central European TMT manufacturers (TMT-WG) was founded in 2010 to cover public relations and marketing activities. Since the present level of product testing and property declaration was not satisfying, a “task group TMT-quality” was put into action in 2010 to develop a comprehensive quality a...
C R Welzbacher, W Scheiding


The overview of ISPM 15 implementation in Croatian wood-working companies
2011 - IRG/WP 11-30576
Croatia is a small European county, but in the same time a great country according to it’s tradition in the forestry and wood working industry. However, around 48% of it’s territory is afforested. As the export is one of the main directions in the Croatian development conception, the production and distribution of wood package intended for the international trade, is one of the most important ...
R Despot, V Jambrekovic, M Hasan


Use of the durable species Coast Redwood as a reference system for field testing of Wood Protection systems
2012 - IRG/WP 12-20486
Data is provided and discussed for a number of field exposure tests where the naturally durable wood species Coast redwood, Sequoia sempervirens, was included along with untreated pine and standard preservative treatments. In general, there is potential for higher variability of results with this naturally durable species, but it does suggest that redwood can be a useful reference material for te...
A Zahora, A Preston, L Jin


Smart hydrogels from low molecular weight amphiphilic compounds: toward a solution to decrease leachability and increase efficacy of boron preservatives?
2012 - IRG/WP 12-30589
A new catanionic system associating amphiphilic carnosine (AlaHisC8) and lauric acid forms supramolecular hydrogel at very low concentration. This gel was investigated and we have checked the validity of the concept of hydrogels utilization to reduce boron leachability and to develop new wood protection treatments. Impregnation with 5% aqueous borax solution (w/w) and 0.3% gelator agent (...
F Obounou Akong, P Gérardin, C Gérardin-Charbonnier


Classifying white rot decay resistance of some hardwoods from Sarawak and Peninsular Malaysia and correlations with their tropical in-ground durability
2012 - IRG/WP 12-10788
White rot wood decay under Malaysian (humid tropical) terrestrial conditions pose more serious threats to the in-ground service life of hardwoods than other common fungal decay types. A study is made on decay resistance variation for a total combined list of 30 Peninsular Malaysian and Sarawak timber species (plus 6 exotic reference temperate commercial woods for comparison) using the laboratory s...
A H H Wong, J M E Jem, Lai Jiew Kok


System treatments of Pinus sylvestris - influence on moisture, decay and discoloration
2013 - IRG/WP 13-30612
Biological activity can cause challenges for the use of wood in outdoor exposure. Decay and discolouring fungi influence the service life of wooden constructions, and the moisture content of the wood is often an important factor. The aim of this study was to evaluate the performance of different combinations of preservative/modified wood protection treatments and surface treatments for wooden deck...
A Schabacker, G Alfredsen, L Ross Gobakken, H Militz, P O Flæte


Moisture dynamics of wood – An approach to implement wetting ability of wood into a resistance classification concept
2014 - IRG/WP 14-20557
Within the research programmes WoodBuild and PerformWOOD, wetting ability tests have been conducted with 25 wood-based materials. A first attempt has been made to establish factors for calculating the material resistance of wood materials to be implemented into a design guideline for timber structures. The approach looks promising, but further studies are needed to establish more reliable relation...
C Brischke, C Hesse, L Meyer, S Bardage, J Jermer, T Isaksson


The Chelator Mediated Fenton System in the Brown Rot Fungi: Details of the Mechanism, and Reasons Why it has Been Ineffective as a Biomimetic Treatment in some Biomass Applications – a Review
2014 - IRG/WP 14-10828
The chelator-mediated Fenton (CMF) reaction requires the action of two types of chelating compounds. The first chelator, oxalate, solubilizes and then sequesters iron, and the second chelator reduces iron. Iron reduction must be controlled near the fungal hyphae to prevent damaging Fenton chemistry from occurring in that location. Similarly, iron reduction must be promoted within the wood/plant ce...
B S Goodell, M Nakamura, J Jellison


Performance classification of wood in construction – drafting a user friendly European standard
2014 - IRG/WP 14-20545
The performance classification for wood products in construction is an extremely important topic in Europe and beyond – warranty providers and end users demand service life and performance information in the face of competition with other materials. The European project PerformWOOD has formalised and drawn together the on-going research to focus on generation of a material resistance factor for ...
E Suttie, C Brischke, L Meyer, J Van Acker, M Kutnik, E Heisel, F Englund, J Jermer, S Thelandersson, M Polášek, D Lorenzo


Experiences with an industrial system for controlled thermal wood modification in pressurized unsaturated steam
2014 - IRG/WP 14-40678
Thermal wood modification in pressurized reactors has a long history, but these processes are to date industrially scarcely used, because of the relatively complicated process equipment, compared to the more common high-temperature processes in kilns at atmospheric pressure. However, based on our practical experience with the FirmoLin® process, supported by recent scientific findings, it is foun...
W Willems


An update on durability of New Zealand grown timber
2015 - IRG/WP 15-10851
Classification and predication of in-service performances of naturally durable timber is much more difficult than preservative treated timber due to the variability of wood properties within and between trees of the same species and the variable nature of the hazard to which the timber will be exposed. A combination of field test and in-service testing has been used to classify the suitability of ...
D Page, T Singh


How does the test methodology influence the outcome of durability testing of thermally modified wood
2015 - IRG/WP 15-40699
Thermally modified wood is commercially available on the European market since many years. Today, many production units with various production capacities and different modification processes exist. Industrial scale wood heat treatment processes, under the trade name of ThermoWood were developed in Finland. ThermoWood has two standard treatment classes with different target properties, namely Ther...
A Gellerich, S Bollmus, H Militz


Above-ground performance of a buffered amine oxide treatment system against Mastotermes darwiniensis
2016 - IRG/WP 16-10855
Above-ground H2 field tests against Mastotermes darwiniensis were conducted in far north Queensland to assess the efficacy of buffered amine oxide treatments in the softwoods Pinus sylvestris and P. radiata, and the hardwoods Eucalyptus regnans and E. diversicolor. Untreated hardwoods and slash pine bait wood (P. elliottii) were severely attacked or destroyed, while untreated P. sylvestris was mod...
L J Cookson, R W Clawson Jr


Creosote leaching from timber bridges in Norway – a practical classification approach
2016 - IRG/WP 16-40744
Creosote is widely used as a wood preservative for highway timber bridges in Norway. However, excessive creosote leaching at various highway timber bridge sites leads to a bad reputation for the use of creosote treated timber constructions and the use of wood in general. Macro- and micro anatomical factors such as amount of heartwood, annual ring width, annual ring orientation, ray- height and com...
A Treu, K Zimmer


Environmentally Sustainable Method of Termite Management using a baiting system: A case study in the Philippines
2016 - IRG/WP 16-50317
Environment and sustainability are key words for achieving product and business success. Use of chemicals in human vicinity such as homes and buildings are on the increase, thanks to a growing consciousness on pests. Using chemical insecticide is the main stay to counter these pests, but its role in environment is being scrutinized.Insect baiting technology has proven its success around the world ...
P Dhang


Contamination of recycled wood from selected recycling companies in Europe
2016 - IRG/WP 16-50322
Recycled wood is becoming more and more important material source for production of new materials and chemicals. For good quality of end products predominately clean recycled wood should be used. In present research, we have focus on concentrations of non-wooden materials in recycled wood and presence of inorganic pollutants: chlorine (Cl), chromium (Cr), copper (Cu), zinc (Zn), lead (Pb), iron (F...
B Lesar, M Humar, G Hora


Fipronil Concentrations in Soil after Vertical Termiticide Applications Using the “Termidor®H•P High Precision Injection System”
2017 - IRG/WP 17-20630
Termidor®H•P II High Precision Termiticide concentrations in sandy-loam and sandy-clay-loam building foundation soil were measured 1.0-hour after high-pressure vertical liquid injections into the soil using the Termidor®H•P High Precision Injection System. Cylindrical, vertical 30.5-cm-deep soil cores were extracted and separated into four 7.6-cm-long sequential partitions, and fipronil res...
B M Kard


Certification system for treated wood and wood preservative in the relation to regulations in Japan
2018 - RG/WP 18-20639
Certification system about wood protection products in Japan is described to understand the interaction between regulations and certifying organizations. Major regulations are Building Standard Law, Chemical Substances Control Law, Poisonous Deleterious Substances Control Act, Japanese Industrial Standards, and Japanese Agricultural Standard (JAS). Treated wood products are certified with JAS mark...
K Yamamoto, I Momohara


Effects of wood protecting biofinish and linseed oil on fire behaviour and leachability of the fire retardant
2018 - IRG/WP 18-30728
A wood protecting biofinish is based on a protective and decorative fungal-based coating and a linseed oil impregnation (called Xyhlo biofinish). This biofinish enables the long-term use of wood in outdoor applications without using toxic chemicals. The fire resistant properties of materials used in buildings are very important. Since Xyhlo biofinish is relatively new, only little information is ...
S Rensink, E J van Niewenhuijzen, M F Sailer


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


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