Your search resulted in 192 documents. Displaying 25 entries per page.
Effect of Nano and Micronized Particles as Wood Preservatives for Termite Control
2013 - IRG/WP 13-30620
Subterranean termites are a major factor in the biodegradation of wood constructor products.
In this study the efficacy of wood treated with micronized copper, zinc oxide and their
mixture was compared to that of wood treated with soluble amine copper oxide with
subterranean termites in a laboratory test. All of the formulations tested were effective in
controlling wood degradation by the term...
M Akhtari, D Nicholas, A Rowlen, M Arefkhani
Investigating the potential role of creosote oil for the water repellent purposes in fiberboards
2013 - IRG/WP 13-40635
Effect of wood steaming during fiber generation processes and creosote
oil on the properties of fiberboard, manufactured from creosote treated solid wood
were investigated. Pulp fiber was generated by alkaline pretreatment of waste creosote
impregnated wood which being fiberized by laboratory defibrator, atmospherically.
These fibers blended with 0, 15, 30, 45 and 100 percent by weight of wood...
M Sheikholeslami
Performance standards for wood in construction – delivering customer service life requirements
2013 - IRG/WP 13-20537
There is increasing need for consideration of performance classification for wood products in construction, as evidenced by the CPR, warranty providers and end user demands for information. This means we need to radically consider how the tests we conduct on wood for durability (especially biological durability) can inform on service life and how they might if possible be translated into a perform...
E Suttie, C Brischke, F Englund, E Heisel, J Jermer, D Lorenzo, M Polášek, S Thelandersson, J Van Acker
Effect of Nano-silver and Nano-copper and Nano-zinc oxide on Paulownia wood exposed to white-rot fungus
2013 - IRG/WP 13-30635
Paulownia is known as a fast growing tree and it can be used in several applications. The present study investigated the effect of Nano-silver and Nano-copper and Nano- zinc oxide on resistance of Paulowina (Paulownia fortunei) wood against the white rot fungus (Coriolus versicolor). Wood specimens with a dry density of 0.37g/cm3 were impregnated with a 400 ppm aqueous suspension of micronized na...
M Akhtari, M Ganjipour
Changes in mechanical and chemical properties of wood exposed outdoors
2014 - IRG/WP 14-20550
The aim of this study was to investigate differences in certain mechanical and chemical properties of three different wood species (common beach (Fagus sylvatica), Norway spruce (Picea abies), and copper-ethanolamine (CuE) impregnated Norway spruce (Picea abies)) that were exposed in use class 3 (CEN, 2006) for periods between 4 and 30 months. The results show, that changes in the investigated me...
N Thaler, C Brischke, D Žlindra, V Vek, M Humar
Full-scale impregnation of wood with siloxane using supercritical carbon dioxide
2014 - IRG/WP 14-40659
Full-scale impregnation of wood with siloxane was carried out using supercritical carbon dioxide as solvent. A batch of 3530 kg of Scots pine sapwood was impregnated to a retention of approximately 1.3% siloxane. The treatment also consisted of a simultaneous impregnation with organic biocides. The performance of the wood was evaluated in terms of capillary water uptake according to a modified EN ...
A Kjellow, F Imsgard, J Fernandes, R Wagner, J Delis
Bio-friendly preservative systems for enhanced wood durability - the first periodic report on DURAWOOD
2015 - IRG/WP 15-30677
The objective of the paper is the DURAWOOD scientific project carried out within Polish-Norwegian Research Programme, which lasts from September 2013 till August 2016. The aim of the project concentrates on the developing of a new, eco-friendly and biocide-free wood protective systems as an alternative to traditional, commonly used preservatives or coatings, containing biocides. Several wood prese...
B Mazela, M Broda, W Perdoch, L Ross Gobakken, I Ratajczak, G Cofta, W Grześkowiak, A Komasa, A Przybył
Life cycle assessment of creosote treated wood and tall oil treated wood with focus on end-of-life
2016 - IRG/WP 16-50320
The use of creosote for protecting wood products in heavy-duty application outdoors has been common for many years, but stricter regulations have limited creosote’s use. Life cycle assessments (LCA) have shown that in some applications alternatives to creosote treated products do not have less environmental impacts. Searching for alternatives to creosote, tall-oil-based preservatives have been ...
L G F Tellnes, U Hundhausen
How carbon stored in harvested wood products contribute in a greenhouse gas accounting perspective
2017 - IRG/WP 17-50327
In 2014 the net annual removal by Norwegian forests was 30.4 mill ton CO2-eqvivalents while the emissions in other sectors was 53.2 mill ton CO2-eqvivalents. Hence, forests can play a major role in the national greenhouse gas balance. But forests also contribute to the carbon pool stored in wood products. The aim of this paper is, by using Norway as an example, to illustrate how the greenhouse gas...
G Alfredsen, G Søgaard
Marine borer resistance of various wood materials in Japan
2021 - IRG/WP 21-10983
Wood resistance against marine borer was intensively studied in the 1940s in Japan, but the research activities on the subject diminished afterward, as the use of wooden marine structures and ships decreased. Today, however, use of wood as a construction material is officially promoted for its environmental benefits. The author started to immerse some wood materials in the seawater pool at PARI ...
M Yamada
Carbon footprint of a cross laminated timber building – Torvbraten school case study
2021 - IRG/WP 21-50366
Torvbråten school is a public school in Asker, Norway, that has reached many sustainability goals. The school was the second in Norway to have Nordic Swan Ecolabel and has a 60 % reduction in carbon footprint compared to the reference benchmark. The building is made of cross laminated timber (CLT) and extensive wood use in general. From a wood protection viewpoint, will this sustainability sustai...
L G F Tellnes, J K Naess, M R Hanssen, P-O Flate
Make do and mend: Re-using timber in Smithfield Market
2022 - IRG/WP 22-50371
Historic buildings are part of our built environment. They are a record of how construction and use of materials have evolved and provide excellent opportunities for regeneration of urban areas. Moreover, re-using these buildings and as much of the material within, contributes to the Green Revolution.
Currently, there is tremendous growth in green construction and as Bob Dylan once said, “the t...
J R Williams
Long-term field performance of a carbon-based preservative in ground contact test conditions
2023 - IRG/WP 23-30781
Carbon-based preservatives have demonstrated reasonable long-term field performance in above ground testing. This study examines the performance of a carbon-based preservative formulation containing quaternary ammonium compounds and tebuconazole as a treatment for three softwood species exposed in ground contact at two sites in Canada. The treatment was associated with improved decay resistance an...
C Wilson, J Zhang, R Stirling
Carbon nanotubes and multifunctional silane additive as fillers in PF resin and their effect on the composite flammability
2023 - IRG/WP 23-30783
Adhesive bonds are the most readily modifiable and, at the same time, give the greatest scope for modification of components of lignocellulosic composites. A study of a manufactured lignocellulosic composite based on a phenol-formaldehyde resin and pine veneer with additives modifying the properties of the resin was made. The multifunctional commercial silicon oxide Protectosil 851 and multi-walle...
W L Grzeskowiak, B Mazela, T Prowadzisz
Environmental Benefits of Wood Preservation
2023 - IRG/WP 23-50377
Over the past decade or two, many people have become significantly more aware and concerned about the global environment and the health of our planet. Building with wood products from sustainably managed forests carries significant environmental benefits. The ability of a growing tree to absorb carbon dioxide (CO2) and sequester the carbon is beneficial in the role of combating rising CO2 levels...
A Siraa
Manipulation of the hierarchical wood structure for extended carbon storage in the built environment
2023 - IRG/WP 23-50381
The sustainable processing of trees into construction materials can act as carbon storage. Carbon storage in durable sustainable wooden construction material has cumulative effects and net gain in storage in the built environment that can be offset by net losses in forest carbon by cutting the tree. Carbon storage for an extended period plays an important role in the mitigation of CO2 emissions an...
T Singh, A Arpanaei, D Elustondo, Q Fu
Keeping wood greenest: Maximizing the unique benefits of preserved wood through end-of-life planning to realize carbon sequestration and a circular economy
2024 - IRG/WP 24-50387
While competitive fuels and different energy sources are a main driver of current difficulties with using end-of-life wood products for fuel, that is a potentially smaller problem than the rapidly changing carbon footprints of competitive materials, which can potentially be smaller than wood, if the wrong decisions are made at the end of life by users and waste generators. While users have several...
J D Lloyd, B Poe