Your search resulted in 97 documents. Displaying 25 entries per page.
Influence of pressure phase impregnation time on the uptake and distribution of wood preservatives in Scots pine material of diverse treatability
2016 - IRG/WP 16-40752
In spite of the general opinion that Scots pine sapwood is easy to impregnate considerable variations in treatability are reported. In order to study impregnation results of diverse Scots pine sapwood treated with increasing process times, Scots pine sapwood from two different predefined treatability groups was impregnated. A copper solution was used as impregnation agent in ten different vacuum p...
K Zimmer, B Kerfriden
Comparative studies on the durability of English oak (Quercus robur L.) under in-service, field and laboratory conditions
2017 - IRG/WP 17-10881
The durability of many wood species varies due to differences in extractive content, anatomical features, growth conditions, and not at least in dependence of the respective exposure conditions either under test or in real life applications. And so does the durability of English oak (Quercus robur L.), which has recently been considered in the revised European standard EN 350 (2016) and is now cla...
C Brischke, L Meyer-Veltrup, A Soetbeer, M Höpken, E Melcher, J Trautner
Effects of climatic factors and material properties on mould growth on untreated wooden claddings
2017 - IRG/WP 17-10884
Mould growth is an important contributor to colour change of untreated wood exposed outdoors. Predicting the development of mould growth is therefore important to ensure successful use of untreated wood as a façade material. More knowledge about the factors affecting mould growth on outdoor exposed wood is required to give better predictions. In this study, climatic factors and material propertie...
S Karlsen Lie, G I Vestøl, O Høibø, L Ross Gobakken
Evaluation of Particulate Materials as a Physical Barrier against Termites under Floor of Experiment House
2017 - IRG/WP 17-10900
In Japan, the damages by the subterranean termites (Coptotermes formosanus and Reticulitermes speratus) are more common. Recently the more attention is paid to the less- or non-chemical methods for termite control. As a non-chemical treatment, physical barriers using particles such as gravels were investigated in terms of environmental safety, cost effectiveness, and duration of performance, and t...
Y Yanase, Y Fujiwara, Y Fujii, T Mori, T Yoshimura, S Doi
Design and performance prediction of timber structures based on a factorization approach
2017 - IRG/WP 17-20603
Service life of timber structures in outdoor conditions is predominantly affected by the climatic conditions in terms of moisture and temperature over time. On the one hand, the two parameters moisture content and temperature determine the exposure-induced dosage that can lead to fungal infestation and subsequent decay. On the other hand, the material resistance of wood stands in opposition to exp...
L Meyer-Veltrup, C Brischke
Laboratory test to determine the effect on durability of combining biobased building materials with timber in construction
2017 - IRG/WP 17-20604
The use of Structural Insulated panels is a construction approach that is seeing more abundant use and is becoming a widely available method. Preformed units are usually a composite structure which often include a range of bio-based materials such as timber, wool or straw. Traditional laboratory based wood decay tests do not take into account this combination of biobased materials and it may be po...
S F Curling, G A Ormondroyd
Moisture performance of wood determined in laboratory and field trials
2017 - IRG/WP 17-20621
It is widely accepted that wood moisture content (MC) is the key factor when it comes to durability of wooden structures exposed to weathering. The moisture performance of wood and wood-based products has been recognized as key element in wood durability and wood protection. Actually, it should be considered as major component of the material-intrinsic resistance of wood, but never found its way i...
D Kržišnik, N Thaler, B Lesar, M Humar
Assessing the nutrient value of bio-based materials in relation to early fungal growth
2017 - IRG/WP 17-20631
Bio-based materials are gaining importance in the building industry, as the focus on sustainability and life-cycle-assessment has increased dramatically over the last decade. Wood and wood-engineered products as well as insulation materials made from flax, hemp, etc. are hence increasingly used. These materials originate from renewable resources and are often biodegradable, which can cause problem...
L De Ligne, J Van den Bulcke, J Baetens, B De Baets, J Van Acker
Material Resistance and Chemical Composition of Italian Stone Pine (Pinus pinea)
2018 - RG/WP 18-20645
Relevant properties of stone pine (Pinus pinea) wood have been only fragmentarily addressed in the past, which has been recognized as a limiting factor for its potential applications. The amount of the respective wood species on the market will likely increase in the future. The sorption properties, permeability to water, extractives content and durability against fungi of Pinus pinea sapwood and ...
M Humar, M De Angelis, M Romagnoli, V Vek, I Poljanšek, P Oven, N Thaler, B Lesar, D Kržišnik
Depictions on Wood: Acceptation and Internalization of Wood, which is an intercultural interaction tool, as “A Valuable Object” (Wood is the Material of Endless Possibilities)
2018 - IRG/WP 18-40837
Wood is a renewable and natural organic material that has a larger range of uses with inclusion of so many different places with its easy processing, functionality, versatility, anatomical structure, chemical composition, physical properties, mechanical properties, aesthetic appearance, healthy and environmentally friendly aspects, and hence there is a growing interest in making better use of wood...
I Usta
Preventivephysical barriers against subterranean termites species for building protection: How to implement innovative materials to reach efficacy requirements
2018 - IRG/WP 18-40845
As the European regulation dealing with the use of biocides (BPR) for preventive protection of buildings against subterranean termites is leading to more and more pressure on physico-chemical barriers currently used (PT18), some existing developments are focusing attention on physical biocides-free barriers. The main target is then to avoid the use of active ingredients, to stay out of the BPR sco...
N Delourme-Fonseca, P Poveda, F Simon
Potential of totora and derivatives as sustainable lignocellulosic material
2019 - IRG/WP 19-40859
Totora (Schoenoplectus californicus C.A. Mey. Soják) is a macrophyte from the Cyperaceae family that grows in the Americas from California to Chile. This plant has long been used by several cultures such as the Ohlone in California, the Moche in Peru, or the Incas in Los Andes. Some communities have maintained its traditional use until the present, such as the communities living nearby Lake San P...
J F Hidalgo-Cordero, D Casado, J García, L Robertson, M T Troya
Performance of bio-based building materials – durability and moisture dynamics
2020 - IRG/WP 20-20666
When exposed to conditions favourable for decay, bio-based building materials can be susceptible to degradation. Their ability to withstand deterioration over time (performance) depends on the intrinsic or enhanced durability of the material as well as its wetting and drying behaviour. The effect of fungicidal components in wood is known since long. Other material characteristics, such as the mate...
L De Ligne, J Caes, S Omar, J Van den Bulcke, J M Baetens, B De Baets, J Van Acker
Studies on the material resistance and moisture dynamics of Douglas fir and Sitka spruce from Slovenia
2021 - IRG/WP 21-20677
Wood in outdoor applications is subject to various decomposition factors. Wood degradation can be prevented by construction details, biocide protection of wood, wood modification, or selection of naturally durable wood species. Unfortunately, the majority of timber species in Europe do not have naturally durable wood. Imported tree species represent a new pool from which we can draw wood species w...
M Humar, B Lesar, D Krzisnik, E Kerzic, R Brus
Application of an Ultrasound-based Instrument to Evaluate Condition of Drywood Termite Infested Timber Components
2022 - IRG/WP 22-11000
The characteristics of ultrasound waves propagation from non-destructive ultrasound-based instrument on drywood termite infested wooden components were investigated. Features of wave 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 woo...
S Fauziyyah, L Karlinasari, D Nandika, R Wimmer
Evaluation of different wood by-products for sustainable building biomaterial production using fungal mycelium
2022 - IRG/WP 22-50373
As human population increases, the demand for new innovative, sustainable, and low impact construction materials also grows. Mycelium-based composites have shown to be an excellent alternative for traditional products ranging from low-density objects to semi-structural applications. They also present the advantage of using the waste streams from other productive processes as feedstock, enabling th...
C Charpentier-Alfaro, M Poggerini, S Palanti, G Della Rocca, D Pellegrini, A Crisci
Assessment of the Material Durability and Structural Integrity of the Wooden Velodrome in Češča vas, Slovenia
2023 - IRG/WP 23-11012
Wood is a widely used material in the construction industry, and it has been utilized for thousands of years to create buildings and other structures. When wooden structures are designed, built, and maintained properly, they can be safe and long-lasting. Sports facilities, which provide athletes with a space to train, compete, and improve their abilities, are crucial in creating a strong and susta...
D Kržišnik, M Humar, B Lesar
Moisture performance of wooden shingles tested on the Golobar cable yarding
2023 - IRG/WP 23-20704
Wood is a traditional roofing material in Europe and other parts of the world. In the 17th century, wooden roofing was generally used on more important buildings, but today it is mainly used on huts and houses in the Alpine regions. As wooden roofing is expensive, we investigated the possibility of extending the service life of the roofing through material selection and details. The roof of the Go...
M Humar, B Lesar, D Kržišnik
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 waste MDF. Not only will there be a material reuse option for waste MDF but due to the small particl...
P T Lewandowski, W Perdoch, E Larnoy, H Militz
Prevention of termite tubing on foam insulation materials
2024 - IRG/WP 24-11039
Foam insulation products have been shown to be damaged by termites who can readily tunnel within it and use it as a conduit within structures. Different types of commercially available foam insulation were tested to see if they could support termite (Coptotermes formosanus, Shiraki) tunnelling on or within them and whether they could be used as a conduit to access a wood food source placed above i...
Q Wu, J Curole, J D Lloyd
Developing thermal-energy storage systems based on Kraft lignin-glyoxal and organic phase-change material modified wood
2024 - IRG/WP 24-30810
This study investigated the use of modified wood as a thermal-energy storage material through the integration of paraffin-based phase-change materials (PCMs). The objective was to evaluate the influence of Kraft lignin-glyoxal prepolymer on the properties of wood modified with PCMs. The implementation of the modified wood involved preparing PCM emulsions, synthesizing lignin-glyoxal prepolymer, an...
C-F Lin, O Karlsson, D Jones, D Sandberg
Bio-based thermal insulation panels – a way of cascading utilization of post-consumer wood
2024 - IRG/WP 24-50388
Cascading wood utilization is critical to fulfilling a circular economy frame in the wood industry. The work's aim was to apply wood dust from plywood production to the production of innovative bio-based thermal insulation panels. Trametes hirsute fungus was used as a composite binder, and then a composite structure and thermal insulation properties, water absorbability, and strength properties of...
W Perdoch, A Szelag