Your search resulted in 110 documents. Displaying 25 entries per page.
Properties of Iron (II) Sulphate treated Norway Spruce
2022 - IRG/WP 22-30765
Exterior wood is exposed to various environmental factors that cause weathering. Weathering is important primarily from an aesthetic standpoint. However, not all parts of the building are equally susceptible to weathering. Parts exposed to moisture will discolour faster than protected parts, such as wood under roof overhangs. To achieve fast and uniform artificial greying, a surface treatment with...
B Lesar, M Humar, M Škamlec
Premature adhesion failure of exterior wood coatings – The influence of substrate temperature at coating application and moisture accumulation during storage
2022 - IRG/WP 22-40937
The present study aimed at extending the knowledge about premature coating failures of industrially finished wood cladding. Two potential factors were studied: the influence of substrate temperature at coating application and moisture accumulation during storage on the adhesion of waterborne coating systems. In the first experiment, 4 batches of wood specimens were submitted to 4 different tempera...
U Hundhausen
Outdoor performance of Tanalith® K treated timber: Dimensional stability and corrosivity towards metal fasteners
2023 - IRG/WP 23-30798
This study was carried out to investigate dimensional stability and corrosivity towards metal fasteners in radiata pine (Pinus radiata D. Don) treated with Tanalith® K to Hazard class 4 (H4) retentions in comparison with chromated copper arsenic (CCA) treated timber. For corrosion test, untreated and treated matched specimens were prepared from Australian-grown radiata pine, tested with mild stee...
G Rassam, J Hague, D Humphrey
Adhesion and performance of exterior wood coatings on chemically and thermally modified wood – Results from 5.5 years outdoor exposure
2023 - IRG/WP 23-40964
Non-durable softwood and hardwood species were treated with the water-soluble cyclic N-methylol compounds 1,3-dimethylol-4,5-dihydroxyethyleneurea (DMDHEU) and methylated DMDHEU. One half of the modified specimens were coated with a waterborne acrylic coating system prior a natural weathering for 5.5 years according to EN 927-3 (2020). By frequent evaluations, the impact of chemical modifications ...
L Emmerich, H Militz
Short-term absorption of water and coatings on thermally modified blue-stained spruce wood
2023 - IRG/WP 23-40984
The importance of wood has been increasing in the last decades. Among conifers, predominantly spruce (Picea abies) wood is often used in building constructions in Europe. Namely for construction and facades of buildings, decking and fences. Due to the increased public concerns about biocides, alternative techniques for protection, such as thermal modification and protection by construction, are ga...
R Hasanagic, M Bahmani, M Humar, L Fathi, L Cai
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
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
Outdoor termite resistance performance of zinc borate (Borogard® ZB) treated parallel strand lumber (PSL) – 15 years field test results
2024 - IRG/WP 24-40999
This report discloses the outdoor termite resistance performance of PSL samples treated with zinc borate at a dosage of 0.85% BAE and 1.72% BAE in Wuxi, China. The outdoor field trial lasted for 15 years and observations were made after 6 months, 3 years, 5 years 1 month, 6 years 6 months and 15 years. The retaining rates of B2O3 and ZnO in the final samples were also tested, and the hypothesis wa...
S Shi, E Laval, K Lung, F Ascherl, R Williams, W Li, X Li
How personality traits influence the perception of fungal decay in a wooden cladding – A survey in three Modelling wood moisture content in outdoor conditions from measured data
2024 - IRG/WP 24-41002
This study examined perceptions of fungal decay damage on wooden cladding across Norway, Sweden, and Germany. The majority of respondents across all countries did not find the fungal decay damage in question acceptable, with the least acceptance in Norway. This could be due to Norway having the highest frequency of wooden residential buildings and the most experience with maintaining wooden claddi...
G W Gustavsen, G Alfredsen, P B van Niekerk, J Niklewski, C Brischke
Modelling wood moisture content in outdoor conditions from measured data
2024 - IRG/WP 24-41005
Sustainable use of wood requires an understanding of expected service life, particularly when the material is exposed to outdoor conditions and, thus, fungal decay. Since moisture is the primary vector for fungal decay, accurate moisture prediction is a key component in service life assessment. For this purpose, the present study leverages existing measured data for linear regression of in-field m...
J Niklewski, P B van Niekerk, L Meyer-Veltrup, J Sandak, C Brischke