Your search resulted in 241 documents. Displaying 25 entries per page.
Relevance of natural pre-weathering for laboratory decay tests with native, modified, and preservative-treated wood
2013 - IRG/WP 13-20522
The on-going development of new wood protection systems is hampered by the long term field tests currently in use. New accelerated test methods and novel methods for faster and more accurate evaluation of wood protection methods are requested. For both field decay tests and accelerated laboratory decay tests, limitations are imposed. This study is part of the research program ‘WoodBuild’, whic...
A Pilgård, C Brischke, L Meyer
Estimation of service life of treated wood in ground contact based on early indicators
2013 - IRG/WP 13-20536
A well-known problem with field testing is that it takes a long time before meaningful and reliable results are achieved. Only when a trial has come to an end the so called average life for the samples in a group can be calculated and compared with other samples. The aim of the present study was to investigate if it is possible to get a reasonable and good estimation of the average life long befor...
M Hansson, J Jermer, P Larsson Brelid, N Terziev
Performance standards for wood in construction – delivering customer service life requirements
2013 - IRG/WP 13-20537
There is increasing need for consideration of performance classification for wood products in construction, as evidenced by the CPR, warranty providers and end user demands for information. This means we need to radically consider how the tests we conduct on wood for durability (especially biological durability) can inform on service life and how they might if possible be translated into a perform...
E Suttie, C Brischke, F Englund, E Heisel, J Jermer, D Lorenzo, M Polášek, S Thelandersson, J Van Acker
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
Moisture dynamics of wood and wood-based products – Results from an inter-laboratory test
2014 - IRG/WP 14-20539
In the frame of the European research project PerformWOOD in close liaison with the CEN task group TG EN 350 of CEN TC 38 WG 21 in total six research institutes teamed up and initiated an inter-lab trial (Round Robin) to investigate the suitability of different test methods to determine the wetting ability of wood. The moisture performance of wood and wood-based products has been recognized as key...
C Brischke, L Meyer, C Hesse, J Van Acker, I De Windt, J Van den Bulcke, E Conti, M Humar, H Viitanen, M Kutnik, L Malassenet
Field trials results of preservative treated ground contact stake conducted in Korea
2014 - IRG/WP 14-30640
The field trials results from Korea preservative treated ground contact stake are reported. There was two site which was in southern area(Anmeon) and east area (Jungsun) of Korea. The CUAZ, CCA and CBHDO preservatives were use in this study. The sapwood of Japanese red pine stake was treated with these preservatives according to Korea standard method and then installed in 2003. Every year the insp...
Dong Won Son, Won Jung Hwang, Hyun-mi Lee, Dong-heub Lee, Sang-bum Park
Copper and chromium leaching from wood impregnated with chromium-copper containing preservatives: Results of different studies
2014 - IRG/WP 14-50300
Copper and chromium based wood preservatives remained one of the most important ingredients for wood protection solutions for protection of wood in demanding applications all-over the world. Leaching of heavy metals from treated wood is important from two different aspects; firstly from performance point of view, and secondly from environmental issues. However, the importance of these studies is i...
M Humar, N Thaler, E Melcher
Performance of some wood modification treatments against marine borers
2014 - IRG/WP 14-40668
Since some years, new treatment technology to protect wood against wood destroying fungi is introduced. Limited knowledge on their resistance to water organisms is available. Therefore, the resistance of chemically modified wood was assessed in a field test according to the European Standard EN 275 over a period of 3 resp. 5 years at sites in the North Sea and the Baltic Sea. Scots pine (Pinus syl...
A Klüppel, C Mai, H Militz, S Cragg
Above ground field testing: results of experiments in Brazil after one year
2015 - IRG/WP 15-30660
After the development of new products they need to be field-tested to assess their efficacy under diverse conditions of climate, comparing them with a preservative with proven efficacy. In some testing sites, decay occurs very slowly. The solution would be to bring these tests to locations that are conducive to biodeterioration, like tropical climates. Tropical sites provide higher temperature and...
M F Natale, J M Vidal
The situation of the industrial protection of wood in Argentina (La situación de la protección industrial de la madera en Argentina)
2015 - IRG/WP 15-30675
Argentina holds 33 million hectares of native forests and 1.2 million hectares of cultivated forests, which make it the 3rd Latin American country with the largest surface of cultivated forests of the region. (Ministry of Industry, 2012). The industrial impregnation of wood through vacuum pressure was first implemented in our country in the year 1932, and currently there are over 100 active plants...
D A Gherscovic
Some comments on durability testing of WPC according to EN 15534-1
2015 - IRG/WP 15-40695
The standard EN 15534-1 (2014) gives advice for broad characterization of WPC materials and products. It contains instructions for test procedures concerning different properties e.g. mechanical properties, thermal properties, as well as durability.
In this paper some WPC materials from the market were tested for their resistance against brown rot. Furthermore, the water uptake and bending prope...
S Bollmus, A Gellerich, H Militz
Durability of reaction to fire performance of FRT wood products in different end use applications – Methods and results
2015 - IRG/WP 15-40705
Fire retardant treatments (FRT) may considerably improve the reaction to fire properties of wood-based products and the highest fire classifications for combustible products can be reached, but the maintained reaction to fire performance e. g. in exterior applications needs to be addressed in order to form a basis for new and reliable wood products with improved fire performance.
A European Techn...
B Östman, L Tsantaridis
Decay of wood in outdoor above ground applications: Preview of results on the effect of climate and species in Spain
2017 - IRG/WP 17-20600
Within the framework of the Project BIA-42434R titled ‘Evaluation of the functional performance of wood in outdoor above ground applications’, seven trials containing seven pieces of sawn wood measuring 750x100x20mm3, belonging to seven different wood species (Scots pine, Radiata pine, Laricio pine, sweet chestnut, eucalyptus, Thermo-treated radiata pine and Spruce), were exposed to unprotecte...
J I Fernández-Golfin Seco, M Conde García, M R Diez Barra, M Conde García, L Acuña Rello, E Torres Álvarez, E Perea Alonso, M T Troya
Variation in coating hardness during the EN 927-6 weathering test: influence of pigmentation
2016 - IRG/WP 16-40739
The objective of the SERVOWOOD project is to develop and establish European Standards that will facilitate the prediction of service life for exterior wood coatings. Within this project an extensive round robin exercise has been carried out by five partners to establish the repeatability and reproducibility of the EN 927-6 artificial weathering test. This round robin included the exposure of the I...
L Podgorski, L Malassenet, C Reynaud
Marine Borer Resistance of Acetylated and Furfurylated Wood – Results from up to 16 years of Field Exposure
2016 - IRG/WP 16-40756
Furfurylated and acetylated Scots pine sapwood has been tested since 1999 in a marine field with high marine borer activity. In 2004, two test groups with acetylated southern yellow pine (product later known as Perennial Wood™) were put out and over the whole test period differently furfurylated wood (later marketed as Kebony®) test groups have been started. Furthermore, some combinations of mo...
M Westin, P Larsson Brelid, T Nilsson, A O Rapp, J P Dickerson, S Lande, S Cragg
COST FP 1303 Cooperative Performance Test – Results after two years outdoor exposure
2017 - IRG/WP 17-20620
COST Action FP 1303 ‘Performance of Bio-Based Building Materials’ started in October 2013 and an ambitious program was set up for four years. Among this a collaborative field test was planned. The idea of the cooperative performance test was to distribute a fairly simple test set up to as many places in Europe as possible in order to collect performance data reflecting the full range of climat...
B Lesar, M Humar, C Brischke, L Meyer-Veltrup, D Jones, N Thaler, J M Abascal, G Alfredsen, B Brunnhuber, E Grodås, M Irle, J Kers, M Klamer, K-C Mahnert, E Melcher, S Palanti, M Noël, E Suttie, N Pfabigan, M Touza
Testing of the resistance of acetylated wood against marine borers at three Italian sites
2017 - IRG/WP 17-30719
The aim of this research is the determination of resistance of acetylated wood against marine biodeterioration in use class 5 (EN 335) in temperate sea waters. The resistance of acetylated Pinus radiata (radiate pine) in solid and MDF form is compared with that of the untreated radiata pine and other untreated wood of European species such as Fagus sylvatica (European beech) Castanea sativa (chest...
S Palanti, M Faimali, D Tagliapietra, M Andrenacci, M Anichini, M Sigovini
Imports of African logs, do they harbor wood-decaying alien fungi and bacteria that could become a potential threat at temperate latitudes? – First results
2018 - IRG/WP 18-10904
In this project we investigate the potential threat of alien wood-decaying fungal and bacterial species imported to Germany with logs from African countries. In a first approach we analysed fungal species on imported logs by identification of fruit bodies by DNA sequencing of the internal transcribed spacer (ITS) regions ITS1 and ITS2. First results revealed the existence of at least one alien fun...
J Trautner, M Höpken, E Melcher
Transfer of research results on the performance of wood and wood-based composites in outdoor applications into praxis
2018 - IRG/WP 18-20634
Forest-based industries have the potential to become an engine for a sustainable and competitive bioeconomy in Danube region. To reach this goal FORESDA projects was proposed. Main aim of respective project is transforming the traditional forest-based areas into innovative, modern and sustainable manufacturing areas; develop innovation-friendly ecosystems aiming to significantly improving and reco...
B Lesar, J Gričar, D Kržišnik, M Humar
Towards durability classification of preservative treated wood – first attempts using different European standards
2018 - RG/WP 18-20638
EN 350 (2016) gives guidance on methods for determining and classifying the durability of wood and wood-based material against biological wood destroying agents. “Wood-based materials are those derived from trees and include amongst others: untreated wood, heat treated wood, chemically modified wood, glue laminated wood, wood-based panels, wood polymer composites and wood treated with wood prese...
S Bollmus, A Gellerich, C Brischke, H Militz
Can CCA be substituted as reference preservative?
2018 - IRG/WP 18-20641
While field testing of wood protective formulations remains probably the best method to find out the effective preservative concentration, the use of chrome-copper arsenate (CCA) as reference becomes debatable due to environmental and legislative reasons. This emerges from the European standardization bodies who have discussed reference alternatives that can omit the use of CCA. The present debate...
N Terziev, M Jebrane, P Larsson Brelid, N Morsing, P-O Flaete, P Torniainen, J S Kim, G Daniel
Above-ground testing methods – review of Rotorua, New Zealand test site results after ten years
2018 - RG/WP 18-20642
A series of seven different types of above ground durability tests were initially conducted over four years to determine which type of tests would give the fastest, most consistent results. Five types of test; ground proximity, two types of decking, flat panels and double layer, were reassessed after ten years. Exposure conditions varied between tests with ground proximity producing close to groun...
D Page, T Singh
Glueline fungicides in veneer based engineered wood products – updated results from laboratory work for the H1.2 hazard class in New Zealand
2018 - IRG/WP 18-30726
Results from New Zealand H1.2 ‘bin’ trials containing plywood glueline treated with triadimefon and cyproconazole were reported in 2012 (IRG/WP 12-30593). One of these trials has continued to the present day (2108) and updated results of this trial are reported. The triadimefon and cyproconazole glueline treatment continues to compare with, or outperform, the reference preservative used, bei...
A Siraa, K Day, B Kibby
Identifying the fungal community on western redcedar (Thuja plicata) wood in field tests above and in ground contact exposure: preliminary results
2019 - IRG/WP 19-10939
Western redcedar (Thuja plicata) is a high value species in the Canadian forest industry due in large part to the natural durability of its heartwood. Western redcedar heartwood contains extractives that are inhibitory to the growth of many fungi responsible for decay. In order to gain insights into which extractives are important in long term durability, and which fungi are important to decay of ...
A Dale, S Kus, R Stirling
Performance of untreated timbers in above ground decking tests: Preliminary results from an international collaborative trial
2019 - IRG/WP 19-10940
The ability to accurately predict wood decay risks under varying environmental conditions has long been of interest to timber users. Accurate predictions are difficult owing to the myriad of variables associated with the decay process including wood species, wood inhabiting organisms, timber building element design and environmental conditions. Despite these difficulties, decay predictions have be...
L P Francis, J Norton, E Melcher, A H H Wong, J Kok Lai, M Klamer, M J Konkler, J J. Morrell