Your search resulted in 802 documents. Displaying 25 entries per page.
Novel treatments of solid wood - studies into the use of imidazole and succinimide
2025 - IRG/WP 25-30817
Recent activities have focussed on the use of ionic liquids (ILs) in wood treatments and bioprocessing. Most ILs are based on imidazolium systems, so it was decided to investigate the potential of imidazole as a treatment, along with another heterocyclic compo…
D Jones, A Scharf, H Dernegård, J Oja, S Duarte, J Levanić, M Humar
CIOL Wood – Industrialization of Sustainable Wood Products: Progress and Prospects
2025 - IRG/WP 25-30820
…D and with additional fire retardants, Class B in fire testing. Additionally, other properties such as strength and additives have been further enhanced, making CIOL® wood an excellent candidate for a range of applications. The ongoing industrial development includes the opening of a new pilot plant in Norway,…
J Biørnstad
AI Models for Accelerating Wood Protection Testing: Development of Predictive Tools Based on Long-Term Field Test Data
2025 - IRG/WP 25-41023
…DecAI enhances the predictive capabilities of traditional testing methods.
DecAI combines advanced neural network architectures, including bidirectional Long Short-Term Memory (LSTM) networks with attention mechanisms, to analyse both static features, such as wood species and treatment protocols, and temporal…
J Stenbaek, B Noufel, L Glade, P Bisgaard
A Case Study of Vogvarjeva hiša, a Local Ethnographic Museum
2025 - IRG/WP 25-41027
The Vogvarjeva hiša in Spodnje Duplje, Slovenia, is an example of traditional 18th Century wooden architecture and an important element of the region’s cultural heritage. The building was constructed from local timber on stone foundations and reflects the t…
D Kržišnik, L Kopač, D Jones, M Humar
Colorimetric performance of temperate wood species under tropical weathering
2025 - IRG/WP 25-41041
…was carried out weekly during the first four months of testing. Subsequently, measurements were taken at four-week intervals. Wood colour monitoring was carried out weekly during the first four months of testing. Subsequently, measurements were taken at four-week intervals. A noticeable colour change of all…
K da Silva Pereira, S J da Costa Lima, M F C Santos, L Emmerich, C Brischke, D C Batista
Investigation of Impregnation Factors for Biomass-Based Phenol-Formaldehyde Resins
2025 - IRG/WP 25-41044
…literature has largely focused on resin treatment and testing of small-sized specimens. However, practical applications involving large-sized timber present more complex parameters. Applying the same impregnation conditions to large specimens may lead to unsatisfactory impregnation results. Therefore, this…
Y-C Huang, T-H Lin, P-Y Kuo
Bio-Based but Toxic? The Neglected Ecotoxicity of Leachates from Wood Preservatives—A mini-review
2025 - IRG/WP 25-50403
…of natural compounds not being toxic. While standards for testing wood durability are usually followed by researchers to assess the effectiveness of the potential preservatives, the ecotoxicity standards are not usually applied in wood preservation. Thus, very limited studies have performed ecotoxicity tests of…
A Barbero-Lopez, A Haapala
A dynamic approach to assess the modulus of elasticity in wood decay testing
1998 - IRG/WP 98-20139
…determined by static and dynamic methods, for the latter, acoustic technique was applied.
The results obtained show a high correlation between dynamic and conventional static bending measurements of test specimens at different stages of wood decay. The non-destructive assessment of modulus of elasticity assessment…
L Machek, H Militz, R Sierra-Alvarez
Intra-species variability of moisture dynamics in wood
2024 - IRG/WP 24-11040
…into account indirectly and therefore inadequately when testing the durability of wood. While test methods are available, for example to determine the permeability of wood, larger amounts of data, covering a larger range of materials and generated by a larger number of testing laboratories, are required to ensure…
C Brischke, H Purps, L Emmerich
On the use of miniaturized wood specimens in fungal decay experiments – mini-blocks versus EN 113 test specimens
2024 - IRG/WP 24-11044
…popularity due to its rapid decay and suitability for testing. However, debates persist regarding incubation times and specimen sizes impacting decay rates and wood preservative evaluations.
This study aimed to compare decay and durability classifications between standard specimens and mini-blocks across…
C Brischke, G Alfredsen
Effects of phosphoric acid and diammonium phosphate treatments on the physical and fire-retardant properties of five selected Nigerian wood species
2024 - IRG/WP 24-20713
…Terminalia superba. Specimen preparation and subsequent testing procedures adhered to the guidelines outlined by the American Society for Testing Materials (2009) to assess the physical properties. The wood samples recorded moisture content values of 42.98%, 34.11%, 29.84%, 29.45%, and 22.49% and density values of…
J Owoyemi, T O Akinwamide, O M Ibrahim, E A Iyiola
EMC as a quality control parameter for thermally modified wood
2024 - IRG/WP 24-20720
…We also report data from 6 years of accelerated testing in Borneo, after CEN 12037 (horizontal lap-joint).
Laboratory data reconfirm strong statistical correlations between moisture and durability performance as described in existing theory. Data also support the theoretical notion that a threshold EMC…
P Klaas, J T Lauridsen
Effectivity of zinc borate in medium density fiberboard (MDF) for ground proximity testing
2024 - IRG/WP 24-20723
…Wood Protection Group test site at Maunawili, HI. After testing, the ZB samples performed better against termites than MDF with no ZB, Douglas-fir, and Southern pine. The results allowed passing the International Code Council (ICC) acceptance criteria for exterior composite trim with ZB preservative by a…
S M Vega Gutierrez, T Olivadoti
Field performance of preserved shakes and shingles
2024 - IRG/WP 24-41000
Wood shakes and shingles are used in applications where they are at risk of decay, either in sidewall (UC3.1) or roofing (UC3.2) applications. Material durability may come from using the heartwood of naturally durable species, using preservative treatments, or…
R Stirling, S Kus
Evaluation of mass timber materials for military and commercial trailer decking
2024 - IRG/WP 24-41009
…adequate uptake of preservative solution and subsequent testing shows minimal effect due to treatment. Field durability tests are also being conducted of treated and untreated materials in tropical sites in Suriname and 8-month data is presented herein. Presence of gaps in the CLT layup have proven problematic as…
G Kirker, A Senalik, X Wang, K Ohno, R Arango, M Mankowski, X Xie, J Eskola, N Kamprath, S Karwaczynski, M Weaver
Field facility for conducting wood durability tests at LSU Agricultural Center
2024 - IRG/WP 24-41012
…and native subterranean termite resistance (Clinton, La).
Testing currently conducted at these sites include evaluation of the effects of testing methodologies and procedures using both within- and between-colony replications, in-ground tests to evaluate preservatives (stake tests) or termite baits, test structures,…
Q Wu, J Curole
Field test method for wood in above ground situation - The full CEN/TC 38 guideline for the Sandwich method. Part 1 - Determining the relative protective effectiveness of a wood preservative
2024 - IRG/WP 24-41013
…alternative to the Lap-Joint test method (EN 12037:23) for testing of wood in above ground situation and the draft CEN/TS Part 1 is specifically intended for determining the relative protective effectiveness of a wood preservative. The new draft CEN/TS is based on a test method developed by Preston and Zahora (2008),…
M Westin, R Ringman, A Christof, F Friese
Unlocking the potential of tropical fast-growing hardwood species
2023 - IRG/WP 23-11010
…fast growing species have been investigated by laboratory testing, using basidiomycete monoculture. Wood specimens were subjected to brown rot (Coniophora puteana) and white rot (Trametes versicolor), for 16 weeks. Parameters such as mass loss, surface hardness, sorption properties, and anatomical characteristics…
S Fauziyyah, R Wimmer, C Brischke
Assessing changes in hardness of furfurylated wood on a nano-scale to mimic levels experienced by the marine wood-boring crustacean, Limnoria
2023 - IRG/WP 23-11016
…these borers, such as pine. In rapid laboratory and field testing, furfurylated wood reduces settlement by the wood-boring bivalves, shipworm, and the feeding rate of crustaceans, Limnoria. Rapid laboratory testing using Limnoria can be used to supplement longer, standardised marine tests, such as those outlined in…
L Martin, J Zekonyte, S Lande, M Westin, S Cragg
Reducing successful settlement by shipworm larvae on wood that has been modified using furfurylation
2023 - IRG/WP 23-11017
…procedures affect the service life of these materials, so testing is performed to the European standard EN275. This standard however, currently involves only long-term marine field testing where products are rated based on the extent of damage by mature shipworm. More rapid testing provides a quicker insight into…
L Martin, I Guarneri, S Lande, M Westin, S Cragg
Glued laminated poles - Progress report after 43 years of testing
2023 - IRG/WP 23-20692
In 1979, a number of glued laminated poles treated with CCA and creosote were placed in a greenhouse in Uppsala, in the Simlångsdalen test field in south-western Sweden and in a power lane in Vuollerim in northern Sweden, in order to study their resistance ag…
J Jermer, M Westin, N Terziev
Field durability testing of wood above ground - Part 1: 15 years’ experience with the Bundle method
2023 - IRG/WP 23-20695
…of all trades’ method for above-ground wood durability testing has been sought for decades, but until now no method has found its way into standardization. The method of choice shall be applicable for untreated and treated wood – ideally also for wood composites. It shall be reproducible, objective, fast, easy,…
C Brischke, G Alfredsen, L Emmerich, M Humar, L Meyer-Veltrup
Field durability testing of wood above ground - Part 2: The full guideline of the Bundle method
2023 - IRG/WP 23-20696
To determine the biological durability of wood above ground, numerous approaches for test methods have been pursued and tried out in the field in the past. So far, no method has managed to find its way into a European standard. During the last 15 years, experi…
C Brischke, G Alfredsen, L Emmerich, M Humar, L Meyer-Veltrup
Laboratory durability testing of preservative treated wood products – first attempts and observations
2023 - IRG/WP 23-20697
…but necessary methods for representative sampling and testing of treated products are lacking. This study aimed at examining the feasibility and suitability of product testing for a durability classification of treated wood products. Sections of untreated and preservative-treated terrace decking and palisades…
C Brischke, M Sievert, M Schilling, S Bollmus
Accelerated surface mould testing for exterior wood treatment in Temperate, Tropical and Laboratory environments
2023 - IRG/WP 23-20699
…In this comparative study, we assess a test method for testing effects of mould-inhibiting technologies. The method is evaluated in three different environments. In this study, a thorough assessment, of methods for testing mould-inhibiting technologies for wood protection is conducted. The test method has been…
A Nazeri, J Stenbaek, T R Laursen, A H H Wong, B M Hasnul