Your search resulted in 153 documents. Displaying 25 entries per page.
Screening of fungi capable of degradation of β-aryl ether bond from lignin model compounds by using highly fluorescent-emitting detection
2025 - IRG/WP 25-11081
Lignin is an aromatic polymer and composed of phenylpropane units polymerized by dehydrogenases in cell walls. Lignin has a complex chemical structure with C-C and C-O-C bonds, and it is difficult to decompose lignin structure by microorganisms in natural conditions. For the microbial degradation of lignin structure, wood decay fungi can non-specifically degrade the lignin polymeric structure by o...
A Ishikawa, Y Mori, Y Ota, M Kiguchi
Real-time evaluation of connected in-ground termite stations in laboratory colonies of Coptotermes gestroi and Prorhinotermes sp.
2025 - IRG/WP 25-11082
Subterranean termites represent a major challenge in infestation management and monitoring. This study evaluates the effectiveness of connected in-ground stations for termite control, incorporating an advanced electronic device developed and patented by Groupe Berkem (Novaterm®). These stations are linked to a gateway unit that collects the detected signals and transmits them remotely via a 4G ne...
M Butin, F Chopinet, S Savriama, D Messaoudi
Characterization of zinc borate synthesized in laboratory and scaled-up study
2025 - IRG/WP 25-20730
The organic nature of wood makes it vulnerable to both abiotic and biotic degradation. Impregnation with chemical products is a widely used method for wood protection. Inorganic borates exhibit a unique combination of properties that make them particularly effective for this purpose: they are insecticidal, fungicidal, and flame-retardant. In this study, ammoniacal zinc borate synthesized in labora...
Laffite, E Fernandez, C M Ibañez
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
Subterranean termites pose significant threats to wooden structures. This study evaluated the efficacy of a bio-based termiticide product containing Arnica extract from Berkem Biosolutions® in controlling subterranean termites in both laboratory and field conditions. The laboratory assessments utilised “the Bottle H” test unit, adhering to the Japan Wood Preservation Association (JWPA) standa...
D Messaoudi, S Khoirul Himmi, D Tarmadi, I Guswenrivo, S Yusuf
Synergistic effect of the association of Prosopis juliflora polyphenolic extractives with tebuconazole on the growth inhibition of brown and white rot fungi: a solution to increase the naturality and safety of wood preservation treatment
2025 - IRG/WP 25-20732
The antifungal effect of catechin and extractives from Prosopis juliflora was studied against one white rot fungus, Trametes versicolor (TV), and one brown rot fungus, Rhodonia placenta (PP). The extractives from Prosopis julilfora were crude mesquitol and pure mesquitol. Tebuconazole was used in this study as a known fungicide against the two named fungi. Wood protection using fungicides can be h...
J Owino, J Tuimising, F Mangin, P Gérardin, A Kiprop, C Gérardin-Charbonnier
The spread of technology in a simple wooden pile construction method to prevent shallow landslides
2025 - IRG/WP 25-20733
This study introduces the development and practical application of an innovative slope stabilization technique called the Wood Pile Root System Method (WPRSM), aimed at preventing shallow landslides, which have increased due to the rising occurrence of extreme weather events caused by climate change. This method effectively reinforces slopes using thinned timber, providing a sustainable and cost-e...
K Shimizu, K Tanaka, H Hashitani, A Yamaguchi, K Kabeno, Y Iijima, A Ito, M Jo, T Fujii, K Abe, H Ochiai
Improvement and practical application of dry-type pressure treatment method
2025 - IRG/WP 25-20734
In years, the need for environmental consideration has been reaffirmed worldwide, and in Japan too, there is a demand for the expansion of the uses of wood in order to achieve a decarbonised society. So, there is also a need to develop and improve wood preservation treatment methods that overcome the weaknesses of wood and enable it to be used in a wide range of applications. The authors have impr...
D Tezuka, C Igarashi
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 dimensional rigidity. CLT is seen as an excellent ‘low carbon’ alternative to using steel and concrete and is growing in popularity as a sustain...
J R Williams
Enhanced Flame Retardancy in Wood via In Situ Polymerization of Phosphorus-Containing Ionic Liquids
2025 - IRG/WP 25-20736
Wood, a ubiquitous material in furniture and construction, is limited by its natural flammability. Existing wood flame retardant technologies are often ineffective and lack environmental sustainability. Ionic liquids (ILs), known for their non-flammability and non-volatility, offer a green solvent solution to these challenges. In this study, we synthesized a novel phosphorus-containing, polymerisa...
J Jiang, Y Wu, J Luo, W Qu
Enhancing the Fire Resistance of Spruce Wood through Treatment and Additive Application: Small Flame Test Method
2025 - IRG/WP 25-20737
Spruce 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 flammability whereas the Burn Block treated panels exhibited exceptional fire resistance...
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
The outdoor use of wood is often limited by challenges such as dimensional instability, vulnerability to fungal decay, and high flammability. Traditional flame retardant treatments improve fire resistance but suffer from significant leaching under environmental exposure, reducing their long-term effectiveness. This study introduces an innovative solution by integrating flame retardants with DMDHEU...
M Wu, L Martin, H Militz
Potential co-valorization of pyrolysis tars from five wood species form Tunisia as wood preservatives bases: Chemical compositions, antifungal and anti-termite activities
2025 - IRG/WP 25-20739
The pyrolysis of five Tunisian wood species (Ceratonia siliqua, Eucalyptus camaldulensis, Eucalyptus maidenii, Pinus pinea, and Quercus canariensis) was carried out in a custom-designed carbonisation reactor developed at the INRGREF's Wood Technology Section (Tunis, Tunisia). This process aimed to produce both char and pyrolysis by-products, particularly pyrolysis oils. The experiments were conduc...
M T Elaieb, J Valette, E Kiény, L Pignolet, S Ghariani, K Candelier
Functionalization of wood with nano-sized titanium dioxide – Efficacy against mould growth and effect on cell wall integrity
2025 - IRG/WP 25-20740
Nano-sized titanium dioxide (nano TiO2) is a photocatalytic compound that generates reactive radicals under UV radiation, which can inhibit microbial growth and impart self-cleaning properties. This effect has been widely utilised on materials such as glass or tiles. This study investigates the potential of nano TiO2 treatments to prevent mould growth on wood and their impact on cell wall integrit...
U Hundhausen, S Bollmus, L Ross
Citric acid/urea derivatives as an anti-discolouration treatment for wood surfaces
2025 - IRG/WP 25-20741
The exterior-use wood faces raining and sunlight exposure, which can cause property changes of the wood, such as the discolouration, dimensional instability, and biological attack. This article explores the use of citric acid and urea as surface protection of wood. The heating of citric acid and urea can result in the fluorescent carbon dots. These carbon dots can absorb UV light with the emission...
C-F Lin, O Myronycheva, D Jones, O Karlsson
Are we barking up the right tree? - the use of bark residues in wood protection
2025 - IRG/WP 25-20742
Tree bark, a lignocellulosic side-stream, is typically underutilised, often combusted or landfilled, thus contributing to greenhouse gas emissions. This communication paper explores the potential of bark residues, particularly suberinic acid, tannins and other polyphenols, in wood protection applications, including coatings, adhesives, and fire retardants. Several European projects have been initi...
A Treu, M Altgen, M Sipponen, M Borrega
CIOL Wood - Scientific Innovations in Wood Modification for Enhanced Performance and Usage
2025 - IRG/WP 25-20743
CIOL® is a wood modification technology designed as an environmentally friendly alternative to traditional wood preservatives. Utilising a biobased formulation based on sorbitol and citric acid, CIOL® enhances wood's chemical structure, improving its durability, stability, and resistance to decay. This paper provides an overview of the advancements made in CIOL® technology, including its improv...
E Larnøy, A Treu, M Diraison, M Smith, A Audouin, P T Lewandowski, J Biørnstad
A novel anti-fungal wood crack repairing agent based on CQDs/PVA
2025 - IRG/WP 25-20744
Wood is a sustainable material, but its tendency to crack and decay poses a challenge for its applications. In this study, we developed a combination system of nitrogen-doping carbon quantum dots (N-CQDs) and polyvinyl alcohol (PVA) to repair wood cracks. Rather than employing the conventional repairing methods such as filling cracks with sawdust and petroleum based-adhesives, this technique can m...
X Zhao, Z Zhang, Y Peng, W Wang, J Cao
Transmission poles - Analysis of causes of premature failure in Slovenia
2025 - IRG/WP 25-20745
The study focuses on analysing the causes of the premature collapse of wooden transmission poles in Slovenia, where there have been several cases of rapid fungal decomposition of poles despite the planned lifespan of 30 to 50 years. The poles were made of Scots pine wood and impregnated with a copper-ethanolamine wood preservative. The research aimed to assess the condition of standing poles and e...
M Humar, B Lesar, N Kregar, S Drnovšek
Evaluation of 'Deep Penetration Treatment' for wood preservation
2025 - IRG/WP 25-20746
‘Deep Penetration Treatment’ (DPT) is a recently developed wood preservation technique in Japan designed to meet the preservation standards required for residential foundations. This method involves spraying a specially formulated solvent-borne wood preservative onto properly incised dried lumber. Despite being a non-pressure treatment, DPT achieves penetration levels comparable to conventiona...
M Ikeda, T Shigeyama, Y Sugai
Hot and cold treatment with ACQ
2025 - IRG/WP 25-20747
Wood deterioration poses a significant challenge in tropical and sub-tropical developing countries, leading to premature structural failure and economic losses. While preservative treatment offers a solution, the high cost of commercial vacuum pressure systems often hinders its widespread adoption. Lower-technology alternatives, like the hot and cold bath method, present a more affordable option f...
J Norton
Wood phytosanitation: which Standard should be applied?
2025 - IRG/WP 25-20748
The international Standards ISPM 15 and ISPM 39 are both essential tools for safeguarding global plant health, but they serve different purposes, and apply to different aspects of international trade. ISPM 15 focuses on wood packaging material and mandates Standardised treatments and marking, while ISPM 39 addresses international movement of wood and emphasises risk assessment and tailored phytosa...
L Robertson, S Santos, M T Troya
Influence of incising methods and wood moisture content on ‘deep penetration treatment’ in Japanese cedar and larch
2025 - IRG/WP 25-20749
To expand applicability of ‘deep penetration treatment’, a solvent-borne and non-pressure treatment that is commonly coupled with roller-type incising using a flat blade, we investigated drill and laser machining as alternative incising methods and examined the influence of wood moisture content on the preservative penetration. Various incising methods were applied to heartwood of Japanese ced...
S Taira, T Miyauchi, S Isaji, H Matsunaga
NTR classified preservative-treated laminated wood
2025 - IRG/WP 25-20750
NTR is a trusted quality labelling system used for the classification and quality control of wood products that have been treated with preservatives or modified. These labels are issued by the Nordic Wood Preservation Council (NWPC) and in recent years, producers of glued laminated timber as well as building material suppliers have shown increasing interest in NTR classification for glued laminate...
J Jermer, F Westin, R Digaitis
The iTrussT project – Advancements in timber bridge design, preservation, and monitoring
2025 - IRG/WP 25-20751
The Norwegian research project iTrussT (2025–2028) aims to advance timber bridge design and unlock wood’s full potential as a sustainable solution for modern infrastructure. It addresses three critical challenges: First, fatigue testing of glued laminated timber lamellae will provide deeper insights into shear failure mechanisms, supporting the development of safer, more efficient structures a...
K-C Mahnert, U Hundhausen
Durability Analysis of Bio-based Phenol-Formaldehyde Resin-Treated Wood
2025 - IRG/WP 25-20753
The aim of this study is to explore the application of bio-based materials in outdoor construction. Enhancing the durability of wood products effectively extends their carbon storage lifespan, making it essential to investigate their long-term durability. The study used commercial resin (CPF) and laboratory-synthesised petro-based phenolic resin (LPF) as control groups. Japanese cedar specimens we...
T-H Lin, P-Y Kuo