Your search resulted in 159 documents. Displaying 25 entries per page.
Preliminary Investigation into the Natural Decay Resistance of Nigerian Grown Hevea brasiliensis and Mitragyna ciliata wood to Phanerochaete chrysosporium White-Rot Fungus
2018 - IRG/WP 18-10919
Wood is an important and versatile structural building material that finds applications in numerous uses. However, wood is also a biological material vulnerable to degradation by microbial activities; this is especially true in the tropics. Following the scarcity of highly durable species from our natural forests and the introduction of so many lesser used/durable wood species into the booming tim...
J M Owoyemi, U O Emmanuel
Molecular identification of marine borers causing wood deterioration on marine facilities in Korea
2019 - IRG/WP 19-10955
The deterioration factors of wood which was used in the marine environment, Tongyeong (South Coast) and Incheon (West Coast) in Korea, were investigated in order to develop technologies for safe and long-term use of timber in ocean facilities.
The marine microorganisms isolated by damaged wood were identified as morphological Chelura sp. and Teredo sp. As a result of DNA sequencing, it was confir...
Sae-Min Yoon, Min-Ji Kim, Won-Joung Hwang, Yong-Seok Choi, Dong-Won Son
Limiting Polysaccharide Motion Protects Wood From Decay
2020 - IRG/WP 20-40890
It is well known that chemical modifications to improve decay resistance also reduce the equilibrium moisture content (EMC) of wood. The mechanism of this action, however, has been the subject of much debate. Several groups have suggested that decay resistance is a result of lower diffusion rates of fungal degradation agents through the wood cell wall. A recent paper explained the fundamental prin...
C G Hunt, S L Zelinka, J E Jakes
Application of suberin fatty acids extracted from birch bark for wood coating
2021 - IRG/WP 21-40914
It is well known that chemical modifications to improve decay resistance also reduce the equilibrium moisture content (EMC) of wood. The mechanism of this action, however, has been the subject of much debate. Several groups have suggested that decay resistance is a result of lower diffusion rates of fungal degradation agents through the wood cell wall. A recent paper explained the fundamental prin...
A Kumar, Risto Korpinen, Veikko Möttönen
Effects of Borax and Boric Acid as Fire Retardants on the Resistance of Pterygota macrocarpa Wood to Fire Tests
2022 - IRG/WP 22-30770
The combustible nature of wood as a building material, when exposed to hazards of fire underscores the reason for fire retardant treatments. Pterygota macrocarpa wood is commonly used by builders in Nigeria for roof and other structural applications. Therefore, this study was carried out to assess the effect of Borax and Boric acid on the fire-retardant properties of P. macrocarpa wood. Wood sampl...
J M Owoyemi, O Apogbona, T O Akinwamide
Molecular dynamics investigation of wood modification with furfuryl alcohol
2022 - IRG/WP 22-40931
Molecular dynamics (MD) was applied to investigate and understand the structural characteristics and the interaction of cellulose and lignin with furfuryl alcohol for explaining the wood modification process. A single chain of cellulose polymer model and a softwood lignin model was considered to represent cellulose and lignin polymers. The obtained radial distribution function results revealed tha...
V Ponnuchamy, J Sandak, A Sandak
Resistance of phenol formaldehyde impregnated beech (Fagus sylvativa L.) LVL against biodegradation in soil contact
2023 - IRG/WP 23-40965
Alternatives to preservative impregnation are emphasized in Germany and other European countries. Even though these treatments significantly improve wood's resistance to decay, they often do not have a beneficial impact on the dimensional stability. One alternative product, which may be used in ground contact for items like poles and railway sleepers, could be beech (Fagus sylvatica L.) laminated ...
M Slabohm, C Brischke, S Bicke, H Militz
Binder-free, fire-resistant, light-weight fiberboard materials encrusted with expandable graphite and borax
2024 - IRG/WP 24-20714
Despite abundant data on innovative fire protection technologies tailored for wood and lignocellulosic materials, the prevailing approach revolves around the formulation of fire retardant solutions employing water-soluble salts, e.g., phosphorus or boron compounds. On the other hand, additives fostering the formation of a char layer during the combustion of lignocellulosic materials as a non-leach...
W Perdoch, W Grześkowiak, B Mazela
Durability and molecular analysis of fungal communities in wood exposed above ground
2025 - IRG/WP 25-11068
The objective of the study was to explore the durability of wood exposed above ground, comprising a wide diversity of wood species and treatments and extensive assessment data on wood durability in ongoing long-term testing. Larch species and Scots pine heartwood, two tropical species ntholo and ncurri and a number of treated wood by copper-based formulations and alternatives (silanes, spiroborate...
N Högberg, D Panov, G Daniel, N Terziev