Your search resulted in 2048 documents. Displaying 25 entries per page.
Resistance of two commercial cement-bonded rubberwood particle composites to decay and termites
2000 - IRG/WP 00-10338
Two types of cement-bonded rubberwood (Hevea brasiliensis) particle composites (tradenames: Cemboard and Primaflex in Malaysia), were evaluated for termite resistance (prevalent termite: Coptotermes curvignathus) in the field, and decay resistance (test white rot…
A A H Wong
Decay pattern in external wooden structures
2025 - IRG/WP 25-11055
Decay in external wooden structures has historically been a universal problem of great concern. Despite this, the general understanding of where and why wood-decaying fungi are occurring is limited. The consequences of this are that decayed wood might not be…
J Mattsson, M S Austigard, A-C Flyen
Revealing the degradation process of Moso bamboo (Phyllostachys edulis) by different decay fungi
2025 - IRG/WP 25-11060
…to various fungi during use. In this study, four prevalent decay fungi, including two 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…
J Xue, D Cui, M Zhou, J Cao
Durability to wood decay fungi and subterranean termites of Quercus pyrenaica Wild
2025 - IRG/WP 25-11066
…resistance of heartwood of Quercus pyrenaica Wild. to be decayed by brown and white-rot Basidiomycetes (Coniophora puteana (Schumacher ex Fries) Karsten and Trametes versicolor (Linnaeus) Quélet and termites (Reticulitermes grassei Clément). The Standards applied were EN-113 part 2 and EN-117. The results showed…
S Santos, M T Troya, L Robertson, S Gutierrez, G Caballe, J L Villanueva
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…
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
Wood-decay fungi degrade the structural integrity and safety of wooden buildings, leading to potential hazards and reduced durability. Conventional detection methods, such as visual inspection and destructive sampling, are often impractical for concealed spaces,…
M Suzuki, T Miyauchi, S Isaji, R Naganawa
Mitigating the risk of decay in CLT buildings affected by trapped construction moisture using a diffusible borate preservative
2025 - IRG/WP 25-20735
Cross-Laminated Timber (CLT) is also known as a mass timber construction material. It is fabricated by gluing together multiple layers of timber lamellae with each layer oriented perpendicular to the one below it. This enhances strength, stability and dimensio…
J R Williams
Decay resistance of thermally modified Eucalyptus grandis in closed and open systems
2025 - IRG/WP 25-30815
…of thermal modification in closed and open systems on the decay resistance of Eucalyptus grandis wood. Short-cycle E. grandis wood, from fast-growing plantations, was thermally modified at target temperatures of 150, 160, and 170 °C in closed system (pressurised), and 170, 190, and 210 °C in open system…
D C Batista, A C Oliveira Rupf, M Wentzel, C Brischke, H Militz
Experimental characterizing of liquid water uptake and release – key to understand moisture-induced decay risk analysis
2025 - IRG/WP 25-41020
…The focus is on the prevention of damage caused by wood- decaying organisms.
M Nopens, J T Benthien, J Trautner, C Brischke
Effect of photodegradation on fungal colonization on wood during initial stage of brown-rot decay
2025 - IRG/WP 25-41024
Photodegradation and decay may happen simultaneously on wood under many exposure conditions. The aim of this study was to explore the effect of photodegradation on fungal colonization during initial stage of brown-rot decay of wood. For this purpose, southern pine (Pinus spp.)…
Y Wang, Y Peng, J Cao
Fungal decay in cable car pylons in Svalbard - overview of results
2025 - IRG/WP 25-41026
…Wooden beams exposed aboveground showed initial decay over the first 80-90 years, whereas severe fungal decay was observed after about 50 years in wooden poles inserted in the ground. Metabarcoding identified Ascomycetes and Basidiomycetes to be predominating in the wood samples and unveiled new fungal…
G Alfredsen, M Altgen, M S Austigard, J Mattsson, M Nunez, L Ross, S Aarseth Tunstad, A Treu, I A Yakovlev, N Bjerregaard Pedersen
Decay resistance of high performance biocomposites based on chemically modified fibres
1998 - IRG/WP 98-40120
…Fibre source, density variation and the use of several types of glues were parameters of the total set-up. Basidiomycete testing was carried out using specific methodology for board materials elaborated in CEN standardisation committees.
V Rijckaert, J Van Acker, M Stevens
Method of embedding and staining of wood after biological testing to support the identification of decay type
1998 - IRG/WP 98-20131
A method for preparing wood for microscopic analysis after decay testing is described, with special regard to a novel fast simultaneous staining, which helps to identify different types of decay. The novel staining process is explained as well as the embedding of heavily decayed samples in polyethylene glycol (PEG)…
A O Rapp
Characterization of cell wall morphology and water-soluble extractives in Japanese larch decayed by white-pocket-rot fungi
2024 - IRG/WP 24-11034
…& Niemelä is a basidiomycete that can cause white-rot decay in Japanese larch (Larix kaempferi) heartwood. P. chrysoloma is a white-rot fungus with a unique pattern that causes white-pocket-rot in the xylem of Japanese larch. However, the mechanism by which P. chrysoloma yields the pattern of white-pocket-rot in…
Y Mori, H Arai, T Ito, H Hashitani, K Yamashita, Y Ota, M Kiguchi
Cellulose nanomaterials in growth media for wood decay fungi
2024 - IRG/WP 24-11035
…a partial substitution for agar in growth media for wood decay fungi. Radial growth measurements of eight basidiomycete fungi were taken on solid growth media with and without CNFs. Additionally, fungal strain virulence was evaluated using the European CSN Standard EN 113-2 wood decay durability test. The inclusion…
K M Ohno, R A Arango, R Sabo, C M Clemons, G T Kirker, A B Bishell
Cellulose nanomaterials in growth media for wood decay fungi
2024 - IRG/WP 24-11035
…a partial substitution for agar in growth media for wood decay fungi. Radial growth measurements of eight basidiomycete fungi were taken on solid growth media with and without CNFs. Additionally, fungal strain virulence was evaluated using the European CSN Standard EN 113-2 wood decay durability test. The inclusion…
K M Ohno, R A Arango, R Sabo, C M Clemons, G T Kirker, A B Bishell
On the use of miniaturized wood specimens in fungal decay experiments – mini-blocks versus EN 113 test specimens
2024 - IRG/WP 24-11044
…evaluation and classification of wood durability against decay fungi using laboratory monoculture experiments has been a longstanding practice because these tests offer quicker results than field tests. Various methods, including miniaturized specimen formats and different incubation periods, have been explored to…
C Brischke, G Alfredsen
Investigating moisture dynamics and fungal decay risk: integrating X-ray CT visualization and simulation benchmarks through a Fungal Control Unit
2024 - IRG/WP 24-11045
…lab and field tests, provide valuable insights into wood decay, they often fall short in replicating real-life conditions, particularly within the intricacies of the building envelope. To address this limitation, a set-up is needed in which we can test a building envelope in different moisture conditions, mimicking…
J Van den Bulcke, J Van Acker, M Delbeke, A Blommaert, N Van Den Bossche, M Steeman, L De Ligne
X-ray fluorescence microscopy of copper ion distribution in decay of copper-treated wood by Fibroporia radiculosa
2024 - IRG/WP 24-11047
…against a wide range of biological organisms including decay fungi and are used in the majority of preservative formulations for outdoor exposure. For most fungal species, copper can be toxic at elevated concentrations, such as those present in preservative treated wood. Despite this, a group of brown-rot fungi…
K M Ohno, J Jakes, A B Bishell, L Li, Q Jin, E Maxey
Enhancing UV resistance and decay resistance of wood by nanoparticle dispersed linseed oil nanoemulsion
2024 - IRG/WP 24-20706
…The aim of this study was to improve the UV resistance and decay resistance of wood by nanomaterial dispersed linseed oil emulsions. Highly stable nanoemulsions of linseed oil-in-water using appropriate emulsifiers were prepared by homogenization and ultrasonication techniques.
The UV resistance of Pinus radiata…
R Bansal, R Kumar, K K Pandey
Influence of the substitution of phenol with lignin cleavage products in phenol-formaldehyde impregnation resins for wood modification on the fungal decay resistance and impregnation depth
2024 - IRG/WP 24-30805
…woods dimensional stability and resistance against fungal decay. However, to decrease the usage of non-renewable resources, the substitution of phenol has been a topic of scientific interest. Lignin is a currently underutilized resource with a chemical structure that contains phenolic units. For adhesive…
J Karthäuser, L Tarentino, A Treu, H Militz, G Alfredsen
Evaluation of the water exclusion ability and inherent bioactivity of heartwood against decay in Japanese and European wood species via above-ground exposure and water absorption tests
2024 - IRG/WP 24-40998
…and a dielectric constant moisture meter. Damages (mainly decay) on the four sides of double-layered members were measured by visual inspection and palpation every 6 months after exposure. The water absorption and drying characteristics of the specimens were examined using floating and submersion tests (CN/TS 16818)…
T Osawa, R Noda, K Yamamoto
How personality traits influence the perception of fungal decay in a wooden cladding – A survey in three Modelling wood moisture content in outdoor conditions from measured data
2024 - IRG/WP 24-41002
This study examined perceptions of fungal decay damage on wooden cladding across Norway, Sweden, and Germany. The majority of respondents across all countries did not find the fungal decay damage in question acceptable, with the least acceptance in Norway. This could be due to Norway having the…
G W Gustavsen, G Alfredsen, P B van Niekerk, J Niklewski, C Brischke
Changes in decay risk of wood in ground contact over Europe, from analysis of historic climate conditions
2024 - IRG/WP 24-41008
…areas into states that are more suitable for fungal wood decay. Climate normals, which are taken over a 30-year period, capture vast spatial and temporal variations in these conditions and comparing these can show changes over time. Importantly, being able to identify locations that have an increased risk of fungal…
P B van Niekerk, B N Marais, G Alfredsen, C Brischke
Determining the minimum water vapor permeability of exterior wood coatings by means of hygrothermal and decay models
2024 - IRG/WP 24-20717
…wood coatings for log homes using hygrothermal and decay modeling. The approach is based on a worst-case scenario assumption, namely a moisture trap at a given wood moisture content in a coated wall log. The minimum limit of vapor permeability of the coating system was determined by simulating the time…
U Hundhausen, S Ullah, D Kraniotis