IRG Documents Database and Compendium



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Your search resulted in 1835 documents. Displaying 25 entries per page.


Treatability and natural durability of some lesser used or unused wood species of Bangladesh
2000 - IRG/WP 00-40170
…along with certain anatomical concepts association with preservative penetrability of the wood. It was observed that grain structure and presence of tyloses appeared to be correlated with penetrability of the wood. The retention of the preservative chemicals through heartwood have been determined by ASOMA X-ray…
K Akhter, M Younusuzzaman, M H Chowdhury


Studies of the ray parenchyma cell ends on the radial flow of Sitka spruce (Picea sitchensis)
2000 - IRG/WP 00-40164
…pathways radially for the impregnation of softwood with preservative chemicals. It is now generally recognised that, if radial flow does occur through ray parenchyma cells, the cross-field pits play a dominating role for the liquid movement in the radial direction. In this case, the radial flow of fluid is through…
I Usta


Alternative methodology for the environmental impact assessment of treated wood: the wood emissions ecotoxicology
2000 - IRG/WP 00-50161
Preservative products and technologies are important for optimising the use of wood and wood products in our society. The regulations of their use under the european Biocidal Products Directive 98/8/EC will require an evaluation of the environmental impact of…
P Marchal, H W Wegen, J Van Acker, E Melcher, R-D Peek, W J Homan, D Aston, D Rudolph, E F Baines


Preservative treatment of different thatching materials for low cost housing
1999 - IRG/WP 99-40144
Preservative treatment were made in seven different roofing materials with Copper-Chrome-Boron (CCB) at different concentration by soaking process. These were paddy straw, wheat straw, jute stick, sungrass, ulu grass, sugercane leaf and Nipa fruticans. It was…
K Akhter, M Younusuzzaman, M H Chowdhury


Polymeric alkylphenol polysulfide - A new wood preservative compound
1999 - IRG/WP 99-30193
The three most widely used preservative compounds are Chromated Copper Arsenate (CCA), Pentachlorophenol (PCP) and Creosote (which is a mixture of phenolic compounds). These preservatives are very effective but their long-term future use is questionable because of environmental…
J Goswami, A Abramson, R Buff, D D Nicholas


Development of a boron/polymer based new wood preservative
2025 - IRG/WP 25-20752
This paper introduces a novel boron/polymer-based wood preservative that significantly reduces boron leaching, making it a promising advancement in wood preservation. The preservative utilises an ion exchange resin originally designed for boron removal from water. Laboratory tests have demonstrated that this new…
O Arroyo Fernandez, S Adab, L Gastonguay


Towards eco-friendly fire retardant of wood - exploring fungal biomineralization
2025 - IRG/WP 25-11052
…have high energy requirements or involve the use of toxic chemicals. Microorganisms contribute significantly to mineral formation on Earth and their ability to do so could be harnessed for generating novel materials. In this work, we explore the biomineralisation potential of several selected fungi that grow in or…
K Butina Ogorelec, A Gubenšek, A Sandak


Microbial symbionts in the shipworm gut: a new finding resolving a century old mystery explaining how shipworms digest lignin
2025 - IRG/WP 25-11061
…shipworm damage thus limiting the need for broad-spectrum preservative biocides in wood used in marine applications. This study also opens new insights into research into the ecological and biotechnological applications of shipworms and their gut symbionts, enhancing our understanding of lignocellulose degradation…
B Goodell, J Chambers, D V Ward, C Murphy, E Black, L B K Mancilio, G Perez-Gonzalez, J R Shipway


Durability and molecular analysis of fungal communities in wood exposed above ground
2025 - IRG/WP 25-11068
…(micronized copper, organic formulation and the reference preservative CCA was still 0 after 17 years of exposure and 0 to 1 after 17 to 20 years in the case of CCA. Obtained DNA data on the fungal diversity in the exposed wood by sequencing techniques and the resemblance between the subjective assessments of wood…
N Högberg, D Panov, G Daniel, N Terziev


Natural and enhanced durability of wood exposed above ground
2025 - IRG/WP 25-11079
…initiated to better understand and predict performance of preservative treated and modified wood. This project integrates field testing with advanced predictive tools to estimate service life early and improve wood performance.
R Digaitis, J Stenbaek, A W Christof, N Morsing, B Lindegaard


The spread of technology in a simple wooden pile construction method to prevent shallow landslides
2025 - IRG/WP 25-20733
…techniques. By utilizing environmentally friendly, preservative-treated, naturally durable wood, the lifespan of wooden piles is extended, and performance is enhanced under various environmental conditions. Field trials were conducted at four diverse sites across Japan: hazardous tree felling areas in the…
K Shimizu, K Tanaka, H Hashitani, A Yamaguchi, K Kabeno, Y Iijima, A Ito, M Jo, T Fujii, K Abe, H Ochiai


Mitigating the risk of decay in CLT buildings affected by trapped construction moisture using a diffusible borate preservative
2025 - IRG/WP 25-20735
…timber or by treatment with diffusible boron containing preservatives. This paper summarises an approach to mitigate trapped construction moisture in a time sensitive construction project in the UK.
J R Williams


Securing Flame Retardancy in Wood: Durability After Artificial and Natural Weathering Test
2025 - IRG/WP 25-20738
…completely, the integrated approach partly retained the chemicals within the wood, showcasing 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


Transmission poles - Analysis of causes of premature failure in Slovenia
2025 - IRG/WP 25-20745
…pine wood and impregnated with a copper-ethanolamine wood preservative. The research aimed to assess the condition of standing poles and examine the key causes of their premature degradation in the case of two broken poles. The methods used include using a resistograph to determine the decay of wood through…
M Humar, B Lesar, N Kregar, S Drnovšek


Evaluation of 'Deep Penetration Treatment' for wood preservation
2025 - IRG/WP 25-20746
…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 conventional pressure treatment. Unlike pressure treatment with water-based preservatives, DPT does not cause dimensional…
M Ikeda, T Shigeyama, Y Sugai


Hot and cold treatment with ACQ
2025 - IRG/WP 25-20747
…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 for locally sourced timber.…
J Norton


Influence of incising methods and wood moisture content on ‘deep penetration treatment’ in Japanese cedar and larch
2025 - IRG/WP 25-20749
…and examined the influence of wood moisture content on the preservative penetration. Various incising methods were applied to heartwood of Japanese cedar (Sugi, Cryptomeria japonica) and Japanese larch (Karamatsu, Larix kaempferi) with different moisture content, and the permeability of the solvent-borne preservative
S Taira, T Miyauchi, S Isaji, H Matsunaga


NTR classified preservative-treated laminated wood
2025 - IRG/WP 25-20750
…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…
J Jermer, F Westin, R Digaitis


The iTrussT project – Advancements in timber bridge design, preservation, and monitoring
2025 - IRG/WP 25-20751
…This system includes the application of copper-containing preservatives for overall decay resistance, oil treatments for hydrophobicity, and moisture-reactive fungicides for long-term protection in areas of high exposure, all while maintaining structural integrity. Third, advanced structural health monitoring…
K-C Mahnert, U Hundhausen


Modification of Beech Wood by Furfurylation with Chestnut (Castanea sativa) or Acacia (Acacia mearnsii) Tannins for Protection Against Subterranean Termites
2025 - IRG/WP 25-30832
…that meet contemporary expectations. To date, most preservative treatments have involved impregnating wood with biocides, often derived from petrochemicals. However, many of these products have been banned or restricted in recent years in Europe, North America and other region due to their toxicity to humans…
J V Dorini-Falavinha, K Candelier, P H Gonzales De Cademartori, C Gérardin-Charbonnier


Evaluation of oak bark extracts as bio-based preservative agents in wood protection
2025 - IRG/WP 25-30833
Bark represents a major by-product of the forestry sector and is often referred to low value uses such as combustion for energy, soil mulching or animal bedding. Nevertheless, bark contains a wide array of bioactive constituents, offering considerable potentia…
R Herrera, A Selmanovic, F Poohphajai, C Peña, A Sandak


Performance Verification of Water-Based Outdoor Wood Protection Coatings Based on Weather Resistance Evaluation
2025 - IRG/WP 25-41015
…its suitability for the Japanese climate. Additionally, preservative-treated wood is becoming increasingly popular in Japan, and there are a growing number of cases where it is used as exterior building materials. We tested whether it is possible to prevent the leaching of active ingredients from the treated wood,…
N Ikemoto


Effect of biodiesel-containing solvents on the performance of Copper Naphthenate and Pentachlorophenol: 118-month assessment and depletion analysis
2025 - IRG/WP 25-41022
…important in determining the performance of oilborne wood preservative systems and they can cause early failures in commodities treated with an otherwise effective preservative system. It is important to assess new solvent performance with oilborne preservative systems to ensure these systems continue to function…
J Cappellazzi, M J Konkler, J J Morrell, C S Love, G Presley


Durability and service life of wood in constructions. The Spanish approach of European Standard EN 460
2025 - IRG/WP 25-41028
…wood in construction: Natural durability of wood species, preservative treatments and protection by design; combined with the variability of environmental conditions (different climatic zones and exposure to weathering), use classes and position and thickness, as well as correct execution of construction and…
D Lorenzo, J Fernández-Golfín, M Touza, A Lozano, J Benito


Durability evaluation of outdoor-exposed CLT treated with various wood presevatives using CT scans
2025 - IRG/WP 25-41035
…cellar test) of CLT treated with the solvent-borne wood preservative by non-pressure treatment, named ‘deep penetration treatment’, were conducted to evaluate those of the rot performance. In addition, by evaluating the rot risk of the characteristic parts of CLT material, we evaluated whether CLT is easier to…
Y Sakurai, T Shigeyama, Y Sugai