Your search resulted in 162 documents. Displaying 25 entries per page.
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…
J D Lloyd, B Poe
Timber circularity discussion: Waste hierarchy and prioritising reuse opportunities!
2024 - IRG/WP 24-50398
…This approach helps to conserve natural resources, reduce energy consumption, minimize greenhouse gas emissions, and minimize the overall environmental footprint associated with timber production and disposal. It also promotes a circular economy where resources are utilized efficiently and waste is minimized,…
T Singh
Metabolite analysis of fungal COS degradation and phylogenetic investigation of COSase genes
2023 - IRG/WP 23-11018
…concerned the metabolism of carbohydrates as a source of energy and nitrogen as a relatively abundant biocomponent element. On the other hand, for micronutrient elements such as sulfur, despite their physiological importance, there is limited knowledge on their acquisition sources and metabolic pathways. We have…
R Iizuka, S Hattori, I Ohtsu, D Hibbett, Y Katayama, M Yoshida
Investigating the fire properties of a composite material made of MDF-residues, citric acid and sorbitol
2023 - IRG/WP 23-40969
In times of climate change and a shortage of energy and raw materials, it has become apparent, that material reuse of wood in a cascade system can reduce the ecological impact of a material and be cost effective. A new composite material has been developed made from citric acid, sorbitol, water and…
P T Lewandowski, W Perdoch, E Larnoy, H Militz
Ultrasound as an alternative treatment in wood protection
2023 - IRG/WP 23-40973
…frequency beyond the limit of human hearing. Ultrasonic energy produces acoustic cavitation reactions, and with additional measures such as temperature, pressure, or antimicrobials can achieve a 5-log reduction in pathogen. The aim of this work has been the effect of low frequency ultrasounds as a method to…
L Robertson, S M Santos, S Cobacho Arcos , A Navas, M T Troya
CIOL Wood - towards industrial scale production
2023 - IRG/WP 23-40980
…of a standalone high temperature kiln (oven) run mostly on energy already produced at the sawmill. All these processes will be monitored by ambitious and necessary R&D methods.
E Larnøy, J Biørnstad
Modification of Gmelina arborea wood for utilization in Nigeria
2023 - IRG/WP 23-40986
…microscopy and Scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) showed that aside from the presence tyloses which obstructed flow in the axial direction, needle-like crystals identified as calcium oxalate contributed to greater restriction to fluid flow in the lateral direction.…
S O Olaniran, H Militz
Multi-scale Experimental Study on Self-sustained Smouldering of CCA-treated Timber Poles
2023 - IRG/WP 23-40988
…to the untreated heartwood, indicating that sufficient energy was released from the oxidation to maintain a self-sustained process. The results will be useful for examining conditions conducive to smouldering and exploring methods for limiting this phenomenon.
W Wu, L Yerman, J J Morrell, F Wiesner
What products are architects using? Relationships between deterioration part and structural performance in wooden houses
2023 - IRG/WP 23-50374
…and mechanical properties. It is the ideal answer to energy efficiency in construction and there is no excuse for not continuing to work on it in architecture, but always organized and in tune with a team of experts in this material and its derivatives to find adaptive building solutions that meet the needs of…
I de las Casas
Application of an Ultrasound-based Instrument to Evaluate Condition of Drywood Termite Infested Timber Components
2022 - IRG/WP 22-11000
…propagation such as time-of-flight, velocity, and peak energy on three orthogonal wooden plane (longitudinal, radial, and transversal) were studied. The wooden components used on this study came from a traditional wooden house in Pandeglang Regency, Banten Province. The basic macroscopic characteristics of wooden…
S Fauziyyah, L Karlinasari, D Nandika, R Wimmer
Measurement of copper concentration in Cu-HDO treating solutions by handheld XRF
2022 - IRG/WP 22-20685
…that it is possible to use data measured with a handheld energy dispersive XRF-analyser for accurate calibrations and predictions of the copper concentration of treating solutions of Wolmanit CX-8.
P O Flaete
Durability against fungal decay of sorbitol and citric acid (SorCA) modified wood
2022 - IRG/WP 22-40928
…characterized by various ML values was analysed by high-energy multiple impact (HEMI) tests and correlated with the ML resulting from decay by brown and white rot fungi. Basically, the structural integrity decreased with increasing ML in specimens being incubated with brown rot fungi, which was not observed after…
K Kurkowiak, L Emmerich, H Militz
Molecular dynamics investigation of wood modification with furfuryl alcohol
2022 - IRG/WP 22-40931
…solvent accessible surface area results. The interaction energy was calculated from the contribution of Van der Waals and electrostatic interaction and the results revealed that cellulose showed a strong interaction with FA than lignin model. The hydrogen bonding analysis demonstrated that the lifetime of hydrogen…
V Ponnuchamy, J Sandak, A Sandak
Surface chemical wood densification through in situ electron beam polymerization: description and dose study
2022 - IRG/WP 22-40933
…monomers and their in-situ polymerization using high-energy electron beams. Yellow birch (Betula alleghaniensis, Britt.) was surface densified and its morphology was studied using X-Ray density profiles and microtomography. Brinell hardness of densified samples increased while irradiated controls showed lower…
J Triquet, P Blanchet, V Landry
Biological assessment of bio-based phase change materials in wood for construction applications
2022 - IRG/WP 22-40935
Solid wood can serve multi-functionality for energy savings in buildings. The study reveals the results of bio-deterioration and degradation of solid Scots pine wood used to incorporate single or multicomponent fatty acid mixtures as bio-based phase change materials (BPCMs). The sapwood samples were…
S Palanti, A Temiz, G Köse Demirel, G Hekimoğlu, A Sari, M Nazari, J Gao, M Jebrane, T Schnabel, N Terziev
Optimized composition of alkyd emulsion with nanoparticles of iron oxide for enhancing protection of thermally modified wood
2022 - IRG/WP 22-40940
…emulsion formulation. The determination of the surface energy of wood, by means of contact angle, before and after thermal treatment shows that the polar component of the surface energy decreases with increasing temperature of thermal treatment. This explains the more hydrophobic character of thermally treated…
E Sansonetti, D Cīrule, I Andersone, B Andersons, E Kuka
The influence of thermal modification and surface charring to different levels on wettability of Norway spruce wood
2022 - IRG/WP 22-40942
…gradually decreased the polar part of the surface free energy for both types of wood. Consequently, the contact angle formed between the wood surface and water increased from 70° to 87° for natural spruce wood and from 75° to 101° for thermally modified spruce wood when the degree of charring was increased.…
J Žigon, C Gerardin, M E P Wålinder, P Gerardin
Make do and mend: Re-using timber in Smithfield Market
2022 - IRG/WP 22-50371
…wood and wood-based products are low in embodied energy. Trees sequester carbon in wood as they grow, and once converted into timber products, this carbon remains locked-up over the life of the product.
Timber is the ultimate renewable material and its reuse within an existing building can sit within the…
J R Williams
Yellow birch fire-protection using polyelectrolytes complexes
2020 - IRG/WP 20-30755
…to form radicals when heated, which recombine with high energy radicals such as H or OH disturbing the chain reactions of the combustion, reducing oxidative character of the flame. However, evidence of the toxicity of some halogenated FR has limited their use in Europe since 2010, in Canada and in several…
M Soula, F Samyn, S Duquesne, V Landry
Elucidation of reactive sites of wood modified with acetic anhydride: Insights from density functional theory calculations
2020 - IRG/WP 20-40892
…of theory. The obtained results revealed that interaction energy of cellobiose-acetic anhydride was higher (about 20 kJ mol-1) than lignin-acetic anhydride. Structural analysis demonstrated that acetic anhydride undergoes a conformational change in lignin-acetic anhydride conformer to avoid steric repulsion from…
V Ponnuchamy, A Sandak, J Sandak, R Herrera Diaz
From wood protection to health protection: larvicidal potential of formulations containing Sextonia rubra wood residues extract against Aedes aegypti mosquitoes
2020 - IRG/WP 20-10968
…of the need for timber, in construction as well as for energy, and the amount of induced wood wastes will increase concurrently. Sawdust residues are used currently only for biomass energy factories, but owing to the presence of molecules displaying interesting biological properties, wood residues and sawdust…
E Cervil, N Amusant, E Wozniak, I Dusfour, J-B Duchemin, D Azam, M Coke, E Houël
Is cascading of harvested wood products really an environmentally beneficial strategy in Finland and Norway?
2020 - IRG/WP 20-50364
…are considered more favourable options compared with energy recovery, and applies strict re-use and recycling targets to household waste and non-hazardous construction and demolition waste. It is not fully clear if setting such targets will result in a positive environmental benefit. The assumption is generally…
C A S Hill, G Alfredsen, M Hughes, L R Gobakken
Wood natural durability an asset to the circular economy of wood industry: valorization of waste from sawmills for the cosmetics sector through the ValorExtr@ct project
2019 - IRG/WP 19-10954
…sawmill waste is intended for the production of biomass energy, except it would be wise to upgrade extractives before burning everything.
It is in this context that the ValorExtr@ct project was developed, which aims to set up the valorization of forest extractives, from durable wood species. In a circular economy…
N Amusant, J Passelande, D Fernand, J Beauchene, E Houel, M Royer
Chemical composition, antitermite and antifungal activity of Dacryodes edulis oleoresin
2019 - IRG/WP 19-20653
…biomass present several advantages: they require less energy to be produced limiting carbon dioxide emissions, biodegradability of biomass make them generally less harmful to the environment. The use of natural products derived from renewable raw materials, replacing chemicals of petrochemical origin, is…
W F Bedounguindzi, K Candelier, P E Engonga, Se Dumarcay, M-F Thevenon, P Gerardin
Towards better integration of wood protection in the forestry wood industry chain - a case study on hybrid poplar
2019 - IRG/WP 19-50359
…need for more renewable resources both for material and energy use has initiated extra focus on the potential to produce more lignocellulosic biomass, in short to increase wood production. Forest types identified as primary forest as well as (semi)-natural forests require conservation measures limiting the option…
J Van Acker