Your search resulted in 162 documents. Displaying 25 entries per page.
Decay resistance variability of European wood species thermally modified by industrial process
2017 - IRG/WP 17-40807
Thermal modification is now considered as a new ecofriendly industrial wood modification process improving mainly the material decay resistance and its dimensional stability. Most industrial thermal treatment processes use convection heat transfer which induces sometimes heterogeneous treatment temperature propagation within the oven and lead to the heterogeneity in treatment efficiency. Thus, it ...
K Candelier, L Pignolet, S Lotte, A Guyot, E Cuny, B Bousseau, M-F Thévenon
A Green and Novel Technology for Recovering Copper and Wood from Treated Wood Waste – Part II: Optimization, copper metal recovery, and process design
2017 - IRG/WP 17-50326
The US consumes 70 million pounds of copper and produces 580 million cubic feet treated wood annually. The EPA disallows burning and reusing treated wood waste due to health/environmental concerns. Vast quantities of copper and wood are landfilled. Two safe and low cost extraction systems, citric acid and ammonium citrate, were identified in Part I of this study. In Part II of the study, effects o...
S Chen, R Patel
Thermodynamic properties of furfurylated wood during moisture adsorption process
2018 - IRG/WP 18-40828
Furfurylation of wood seems a promising wood modification method considering the wide raw material source of furfuryl alcohol (FA) and overall performance of FA modified wood. However, the modification mechanism of furfurylation is still not clear and needs further investigation. In this study, poplar (Populus cathayana Rehd.) samples with the size of 1(R) mm × Ф4 mm, were impregnated with ...
J Wang, J Cao, T Yang, E Ma, W Wang
Visualization of Feeding Process of Larvae of the Wood-boring Beetles Using X-ray Computer Tomography
2019 - IRG/WP 19-10953
X-ray computer tomography (CT) was applied to observe the movement of the larvae of the wood-boring beetles Lyctus brunneus, Lyctus africanus, and Heterobostrychus aequalis inside the infested wood specimens. The larvae bred with artificial diet were inserted into the hole of wood specimens of rubber wood Hevea spp. or Japanese oak Quercus crispula. The wood specimens with larvae were scanned usin...
Y Yanase, H Watanabe, I Fujimoto, T Yoshimura, Y Fujii
Exploring the use of X-ray micro CT as a tool for the monitoring of moisture production and mass loss during lab-based fungal degradation testing
2019 - IRG/WP 19-20654
Bio-based building materials, such as wood and wood-engineered products, are susceptible to degradation by decay fungi. In-depth knowledge on the intricate material-fungus relationship as well as performance data for many bio-based building materials are still lacking, and especially knowledge on how a material’s structure and moisture properties affect the degradation process is missing. Althou...
L De Ligne, J Van den Bulcke, A De Muynck, J M Baetens, B De Baets, L Van Hoorebeke, J Van Acker
Study on Nailed Joint with Iron Contamination. Part1: Shear Performance of Nailed Joint with Iron Contamination
2019 - IRG/WP 19-50349
In Japan, The building standard law was amended in 2000.1) The use of metal joint was obligated by this law. Since then, metal joints have been largely used for wooden buildings. Also, Act on the Promotion of Popularization of Long-life Quality Housing was enacted in 2009 and leaving Long-life Quality Housing has been focused on2). However, leaving houses to posterity for a long time causes severa...
R Nakano, D Nakano, H Ishiyama
Study on Nailed Joint with Iron Contamination. Part2: Elucidation of the Occurrence Condition of Iron Contamination
2019 - IRG/WP 19-50350
In recent years, efforts towards wooden buildings are progressing in Japan. And many woods are used in various places. However, various problems have also occurred in wooden buildings. One of the problems is iron contamination which appears when wood and metal chemically react. At present, tree species that are prone to iron contamination and components that cause iron contamination are clarified....
D Nakano, R Nakano, H Ishiyama
Investigations into the use of Maleic Anhydride/Sodium Hypophosphite as a Wood Modification Process
2020 - IRG/WP 20-40891
The formation of crosslinked bonds between wood constituents is believed to be an effective way to stabilize wood against wet conditions. The possibility to use maleic anhydride (MA) combined with sodium hypophosphite (SHP) as crosslinking agents was studied, using Scots pine sapwood and a model compound. The modified wood showed weight gain and bulking effect after treatment and subsequent Soxhle...
I Kim, D Jones, O Karlsson, D Sandberg, O N Antzutkin, F Ullah Shah
Bioremediation technology for cleaning-up of the soil contaminated with creosote oil – the overall concept of BIOREM project
2020 - IRG/WP 20-50363
The aim of the communication paper is to present the conceptual framework of the BIOREM project, which started in May 2019. The final result of the entire project will be an innovative bioremediation technology that can be used in areas contaminated with creosote oil – a commonly used wood preservative being a complex mixture of various compounds such as polycyclic aromatic hydrocarbons (PAHs). ...
M Sydow, J Zabielska-Matejuk, A Stangierska
Field test methods as long-term aging – report of selective wood properties
2023 - IRG/WP 23-40962
Wood samples from a long-term field test are a valuable compendium of information about the material in the context of its aging processes. In the current work, wood samples from the round-robin test within the ECOMOD project were used as a material for the natural aging process (III and IV class of utility). The research scope was to determine selected properties of this wood which can be partial...
W Perdoch, M Benc, B Mazela, A Szulc, J Cegiela
New wood-modification process based on grafted urethane groups: Durability of carbamamylated Scots pine (Pinus sylvestris L.) wood
2023 - IRG/WP 23-40974
Substituting commonly used toxic preservatives with wood modification treatments can make the wood material less prone to water and moisture uptake. This approach favours a more sustainable protection of wood against biodegradation. In this study, Scots pine sapwood was full-cell impregnated with an aqueous solution of urea (30%), dried at 40°C for 24h, and subsequently heat-treated at 150°C for...
C-F Lin, O Myronycheva, O Karlsson, D Jones, D Sandberg
Exploring bio-based chemicals in the residual stream from the thermal wood modification process
2024 - IRG/WP 24-30799
Numerous chemical-free processes have emerged in the wood processing industry to enhance the durability and optimize the service life of wooden elements exposed to exterior conditions. One such method, the hygrothermolytic modification process, patented as FirmoLin®, represents an industrial treatment for thermal modification of wood. This involves subjecting solid wood to a pressurized unsaturat...
R Herrera, W Willems, W Pajerski, A Selmanović, A Sandak