Your search resulted in 1915 documents. Displaying 25 entries per page.
Effects of chlorothalonil (CTN) and butylated hydroxytoluene (BHT) on microbial communities involved in the deterioration of wood using T-RFLP I: Accelerated laboratory decay study
2006 - IRG/WP 06-20332
…effects with CTN. Results from an accelerated decay test will be presented. The accelerated decay test evaluates the performance of wood preservatives in conditions optimized to promote accelerated microbial degradation. This study is evaluating six retentions in two different soil mixtures (with and without…
G T Kirker, M L Prewitt, S V Diehl
Screening of bacteria, yeasts and Trichoderma isolates for antagonism toward stain and mould fungi on agar media and wood
1999 - IRG/WP 99-20159
…The rapid screening method was subsequently verified by testing antagonism of the most promising bacteria on Scots pine sapwood. Most of the 64 bacterial showed antagonistic effects on certain media against individual fungi after 8 weeks incubation. Bacterial antagonism toward fungi and growth rates of fungi and…
C Payne, A Bruce
Structural health assessment of wood - A comparison of methods for determining the spatial spread of fungal infestation in beams and rafters
2025 - IRG/WP 25-11051
…measurements and High-Energy Multiple Impact (HEMI) – tests. None of these methods indicated a possible loss of structural integrity of the wood that was not already macroscopically visible on the sanded cross-sectional surfaces of the components. To overcome the drawback of real building components which…
C Brischke, N Sommerfeld, E Flohr, A K Mayer, S Bollmus
Revealing the degradation process of Moso bamboo (Phyllostachys edulis) by different decay fungi
2025 - IRG/WP 25-11060
…brown rot fungi and two white-rot fungi, were used as the test fungi to investigate the changes in structure and chemical composition of Moso bamboo samples at different incubation times in order to better understand the degradation mechanism of the decay fungi on bamboo. Mass loss, pH, and moisture content of Moso…
J Xue, D Cui, M Zhou, J Cao
Microbial symbionts in the shipworm gut: a new finding resolving a century old mystery explaining how shipworms digest lignin
2025 - IRG/WP 25-11061
…navalis shipworm. We discovered previously overlooked bacterial symbionts living within the typhlosole, a specialised structure within the main wood digestive organ (cecum) of the T. navalis shipworm, challenging the long-held belief that shipworm foreguts are nearly sterile environments. The discovery of…
B Goodell, J Chambers, D V Ward, C Murphy, E Black, L B K Mancilio, G Perez-Gonzalez, J R Shipway
A comparison of methods – how to achieve a robust and conclusive durability classification of wood
2025 - IRG/WP 25-11063
…be to ensure transparency and comparability and to create test scenarios adapted to real exposure conditions. Whether this is achieved by the current portfolio of European standards may be questioned.
In this paper, selected adjustment screws are examined and re-assessed through analysis of published data from…
C Brischke
Evaluation of decay detection drill data – a semi-quantitative approach
2025 - IRG/WP 25-11067
Decay detection drilling and pick testing are common methods for evaluating decay in structural timber. In this study 63 poles in snow fence trusses at Finse in Norway, where climate change is expected to increase decay hazard, were evaluated by both drilling and pick testing. The aim of this…
M S Austigard, J Mattsson, G Alfredsen, L Ross, N Bjerregaard Pedersen
Detecting wood-decay fungi in walls: a non-destructive approach with an electronic nose
2025 - IRG/WP 25-11070
…polystyrene (XPS)-insulated, and glass fibre-insulated test specimens. Decay was induced using Fomitopsis palustris, while control specimens remained unexposed. Sensor responses were analysed using principal component analysis (PCA). The results demonstrated that decay-induced odour changes were distinguishable,…
M Suzuki, T Miyauchi, S Isaji, R Naganawa
Natural and enhanced durability of wood exposed above ground
2025 - IRG/WP 25-11079
…This extensive, long-term study involves over 1,700 test specimens, providing a standardised framework for comparing wood species under consistent and controlled conditions, such as uniform dimensions and exposure to specific weather conditions.
The study evaluates decay, moisture content, discoloration…
R Digaitis, J Stenbaek, A W Christof, N Morsing, B Lindegaard
From Wet to Preserved: Collecting Data of Waterlogged Wood Treated with PEG in Lanyan Museum and Study the Effect of Molecular Weight on Dimensional Stability
2025 - IRG/WP 25-11080
…from the Qiwulan area, selects relics of similar size as test materials, and uses a Laser Raman Scattering Spectrometer to evaluate the degree of decay. The pretreatment uses 2% ethylenediaminetetraacetic acid and 10% sodium hydroxide. For freeze-drying treatment, the wood is first immersed in liquid nitrogen,…
K-L Huang, P-Y Kuo
Evaluating the Efficacy of Arnica Extract-Based Termiticide from Berkem Biosolutions® in Subterranean Termite Control: A Comprehensive Laboratory and Four-Year Field Study
2025 - IRG/WP 25-20731
…The laboratory assessments utilised “the Bottle H” test unit, adhering to the Japan Wood Preservation Association (JWPA) standard JWPAS-TS-(1) 2018 with Coptotermes gestroi as the test species. The results showed that there was no termite penetration in all treated-soil test units, indicating that the product…
D Messaoudi, S Khoirul Himmi, D Tarmadi, I Guswenrivo, S Yusuf
Improvement and practical application of dry-type pressure treatment method
2025 - IRG/WP 25-20734
…response to this, the authors conducted adhesion strength tests, dimensional change measurements between before and after dry-treatment, and durability tests assuming the foundation environment of conventional construction methods to evaluate dry-treating engineered wood. As a result, it was found that the dry…
D Tezuka, C Igarashi
Enhancing the Fire Resistance of Spruce Wood through Treatment and Additive Application: Small Flame Test Method
2025 - IRG/WP 25-20737
…panels treated by spraying with Burnblock® spray, were tested using “Small flame test method” according to EN ISO 11925-2:2011. The fire retardant product from Burnblock ApS is reported by the Danish company to be bioderived and non-toxic. The results for the untreated planed spruce showed moderate…
E S Mujanic, R Hasanagic, E Kerzic, L Fathi, M Humar
Securing Flame Retardancy in Wood: Durability After Artificial and Natural Weathering Test
2025 - IRG/WP 25-20738
…exceptional resistance to leaching. Cone calorimetry tests further confirmed the superior flame retardancy of the treated wood, with strong performance even after prolonged weathering.
M Wu, L Martin, H Militz
Functionalization of wood with nano-sized titanium dioxide – Efficacy against mould growth and effect on cell wall integrity
2025 - IRG/WP 25-20740
…their impact on cell wall integrity. In a laboratory fungi test, nano TiO2 at 4% and 8% effectively inhibited mould growth, both with and without UV exposure, suggesting that its efficacy is not solely due to photocatalysis. SEM/EDX analysis revealed that nano TiO2 is in the lumina and does not penetrate the cell…
U Hundhausen, S Bollmus, L Ross
Hot and cold treatment with ACQ
2025 - IRG/WP 25-20747
…explored the use of lower temperatures and increasing test sample replication. Preserved samples were subjected to detailed penetration testing and the use of image analysis to quantify the results obtained. A good relationship between heating temperature and percent copper penetration was developed with a…
J Norton
Durability Analysis of Bio-based Phenol-Formaldehyde Resin-Treated Wood
2025 - IRG/WP 25-20753
…after curing, placed in an outdoor weathering test site for six months of exposure. After exposure the earlywood surface of untreated Japanese cedar significantly whitened, while light coloured specimens darkened, and originally dark specimens became lighter. The △E of BPF treated specimens fluctuated…
T-H Lin, P-Y Kuo
Predicting weather resistance of Recoated Outdoor Wood by Near Infrared Diffuse Reflectance Spectroscopy
2025 - IRG/WP 25-20757
…specimens were subjected to a xenon arc artificial weather test for 750 hours under irradiance 150 W/m2 at the 300-400 nm wavelength, black-standard temperature 75 ˚C, a water cycle consist of 22 min radiation exposure and 18 min simultaneous water spray and radiation exposure. After artificial weather test, water…
M Murai, M Itani, K Isoda
Enhancing the Effectiveness of Penflufen by using a Plant Booster
2025 - IRG/WP 25-20759
…basidiomycetes fungi. In the European standard efficacy test EN 113/ EN 84, penflufen is controlling both brown rot and white rot fungi at the low retention of 0.020 kg penflufen per cubic metre of wood, making it much more effective than the triazole fungicides tebuconazole and propiconazole which are widely used…
D Messaoudi, A Robert, P Meckler, T Jaetsch
Decay resistance of thermally modified Eucalyptus grandis in closed and open systems
2025 - IRG/WP 25-30815
…was separated for comparison. We carried out laboratory tests of i) decay resistance against Trametes versicolor (white rot) and Coniophora puteana (brown rot); ii) hygroscopicity in a climate chamber, resulting in equilibrium moisture content and moisture exclusion efficiency data. Thermal modification in open…
D C Batista, A C Oliveira Rupf, M Wentzel, C Brischke, H Militz
Enhanced Termite Resistance of Low Durability Fast Growing Teak Wood by Non-Biocide Treatments Based on Chemical and Thermal Modification
2025 - IRG/WP 25-30818
…using “choice” and “non-choice” screening termite tests. Furfurylation (FA), thermal treatment (HT), and combination of chemical and thermal treatment using glycerol-maleic anhydride (GMA) were performed on sapwood, heartwood, and their transition fractions (50:50, sapwood:heartwood). On one side, the wood…
R Martha, K Candelier, M-F Thévenon, B George, I S Rahayu, W Darmawan, P Gérardin
Furfurylation of wood with white pocket rot caused by Porodaedalea chrysoloma
2025 - IRG/WP 25-30819
…with an elevated mass percent gain even after leaching test with acetone solution.
Y Mori, Yamashita, Y Ota, M Kiguchi
The impact of common fire retardancy salts and minerals on further properties of wood
2025 - IRG/WP 25-30821
…the influence of UV light was evaluated using a xenon tester and colour changes were evaluated according to the CIELab colour analysis. Additionally, Fourier-transform infrared spectroscopy was used to investigate the potential of the minerals to protect the wood structural elements due to UV irradiation.…
T Franke, T Volkmer
Mineral-wood composites with improved fire properties and durability prepared through MgCO3-based mineralization
2025 - IRG/WP 25-30823
…The total heat release in the first 600 seconds of the test (THR600s), the fire growth rate index (FIGRA) and the total smoke production are all significantly lower. Additionally, such mineralisation has positive effect on fungal durability: the mass loss caused by brown (Gloeophyllum trabeum) and white (Trametes…
A Pondelak, N Knez, S D Škapin, M Humar, A S Škapin
Effect of Deep Eutectic Solvent Pretreatment on Properties of Densified Wood
2025 - IRG/WP 25-30824
…at a higher level even after a water-soaking/boiling test due to its excellent dimensional stability. DES pretreatment could be considered as a suitable and green strategy for producing high-strength structural wood with excellent dimensional stability.
Y Ran, W Wang, J Cao