Your search resulted in 513 documents. Displaying 25 entries per page.
Fungal degradation of oak timber bridges
2025 - IRG/WP 25-11058
Wood is increasingly recognised as an eco-friendly building material, but its organic nature makes it vulnerable to degradation, especially in outdoor applications exposed to moisture. This study investigates wood-decaying fungi affecting oak timber bridges in Hanover, Germany. The study aimed to identify the fungal species using culture-independent methods and to examine the impact of poorly exec...
L Schrader, J Trautner, C Brischke
Performance of Chromated Copper Arsenic Treated and Untreated Papua New Guinea Timber Species in Marine Exposure after 95 weeks (664 days)
2025 - IRG/WP 25-11062
A Masters’ thesis on the topic was successfully completed and submitted in September 2024. The thesis reports on results obtained from exposure of five Papua New Guinea (PNG) timber species (obtained from secondary growth or plantation grown) after 218 days (31 weeks) in a marine environment in sub-tropical Queensland, Australia. The species studied were: Hopea iriana (Hopea, heavy), Vitex cofas...
E Galore, J Norton, T Singh
DURALARCH – Suitability of selected coloured coniferous heartwoods of different origin for their use in outdoor applications
2025 - IRG/WP 25-11064
For outdoor above-ground applications with high demands on biological durability, there are only a few softwoods available that also have high density and strength characteristics. One of the most important timbers with these material properties is Siberian larch (Larix sibirica, Larix gmelinii), which is available in sufficient quantities due to its large distribution area. Imports of Siberian la...
C Brischke, J Appelt, G Koch, S Majer, M Nopens, R Stirling, D Wong
NTR classified preservative-treated laminated wood
2025 - IRG/WP 25-20750
NTR is a trusted quality labelling system used for the classification and quality 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 laminate...
J Jermer, F Westin, R Digaitis
The iTrussT project – Advancements in timber bridge design, preservation, and monitoring
2025 - IRG/WP 25-20751
The Norwegian research project iTrussT (2025–2028) aims to advance timber bridge design and unlock wood’s full potential as a sustainable solution for modern infrastructure. It addresses three critical challenges: First, fatigue testing of glued laminated timber lamellae will provide deeper insights into shear failure mechanisms, supporting the development of safer, more efficient structures a...
K-C Mahnert, U Hundhausen
Moisture uptake in CLT during the construction phase: real construction conditions versus specimens exposed to environment
2025 - IRG/WP 25-41019
The rapid growth in the use of Cross-Laminated Timber (CLT) in construction highlights the need to address durability concerns, particularly in regions with less experience in Mass Timber Construction and favourable climatic conditions for the biological degradation of wood, such as Mediterranean countries. A lack of awareness and deficient construction management can negatively impact the public ...
D Lima, S Duarte, J M Branco, L Nunes (†)
Relationship between changes inside moisture content of wood measured using temperature and humidity sensors and swelling and shrinkage
2025 - IRG/WP 25-41030
With the spread of mid and high-rise timber buildings, the long-term use of timber buildings is getting required more than ever. It is considered that measurement of the local inside moisture content of a wooden member is one of the useful methods for periodic health assessment of timber buildings. The aim of this research is to establish an easy estimation method of the local inside moisture cont...
Y Sadakane, T Mori
Durability evaluation of outdoor-exposed CLT treated with various wood presevatives using CT scans
2025 - IRG/WP 25-41035
Methods for wood preservation treatment of large materials such as Cross Laminated Timber (CLT) are limited. It is unclear which wood preservation treatment methods can effectively protect CLT from rot risk. In this study, accelerated rot tests (fungus cellar test) of CLT treated with the solvent-borne wood preservative by non-pressure treatment, named ‘deep penetration treatment’, were conduc...
Y Sakurai, T Shigeyama, Y Sugai
Hyperspectral imaging in qualitative and quantitative assessment of biocide treated timber
2025 - IRG/WP 25-50407
A hyperspectral camera operating in the shortwave infrared light range between 1000 – 2500 nm was used to collect spectral profiles of timber treated with different biocides and varying concentrations of a copper-ethanolamine based wood preservative. The spectra were analysed using statistical methods like principal component analysis, linear discriminant analysis, and partial least squares to a...
J Levanič, E Keržič, B Lesar, M Humar
Timber reuse and circularity: Insight from Norway's SirkTre and CircWOOD initiatives
2025 - IRG/WP 25-50409
Timber is central to the EU’s decarbonisation strategy, particularly in the building sector, which faces challenges related to climate adaptation, resource constraints, and rising costs. The four-year SirkTRE project aims to improve circularity in the timber industry by developing standards, promoting reuse, and expanding market opportunities. A key focus of SirkTRE is to increase the longevity ...
K Nore, L Ross
Leveraging Geospatial Mapping for Timber Circularity in Australia
2025 - IRG/WP 25-50410
Timber, renowned for its low embodied carbon and renewable characteristics, is a prime candidate for integration into the circular economy. However, challenges arise in the reuse, repurposing, and recycling of chemically treated materials. The National Centre for Timber Durability and Design Life (NCTDDL) at the University of the Sunshine Coast (UniSC) is leading a collaborative initiative with Fo...
T Singh, P Mitchell, M Strandgard, M Harris
A Study on the Damage and Conservation of Wood in Dense Areas of Wooden Buildings
2025 - IRG/WP 25-50412
One of the key threats to timber buildings in large parts of the world is the risk for damage by termites. Therefore, effective preservation strategies need to be developed. The study presented here is focussing on the current condition of wooden houses in the Seocho area, a densely built wooden residential area in Jongno-gu in Seoul, Korea. This study has been conducted to explore the proactive a...
N-C Ko, Y-J Lee, H-D Kim
Wood Protection in the Tropics: A Necessity in the Face of Climate Change and Rising Demand for Wood Products Consumption
2025 - IRG/WP 25-50413
With the rising demand for forest products due to population growth and continuous expansion of tropical countries’ economies. Therefore, the need for judicious use of forest products in the advent of climate change to meet the needs of the people cannot be downplayed but serve as a clarion call to conserve and improve the use of forest products for longer services. My talk will highlight the st...
M Nurudeen Iddrisu