Mould susceptibility of Scots pine (Pinus sylvestris L.) sapwood: Impact of drying, thermal modification, and copper-based preservative
| Autor: | Tom Morén, Margot Sehlstedt-Persson, Sheikh Ali Ahmed |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Preservative
Materials science biology Waste management Scots pine chemistry.chemical_element biology.organism_classification Pulp and paper industry Microbiology Durability Copper respiratory tract diseases Single test Biomaterials Pinus Aesthetic value chemistry immune system diseases Waste Management and Disposal Water content |
| Zdroj: | International Biodeterioration & Biodegradation. 85:284-288 |
| ISSN: | 0964-8305 |
| DOI: | 10.1016/j.ibiod.2013.06.031 |
| Popis: | The development of mould on wood surfaces depends on several factors. Although mould does not affect the mechanical properties of wood, it greatly reduces the aesthetic value of wood such as the sapwood of Scots pine (Pinus sylvestris L.), which is very prone to mould. In addition, adverse health effects of mould on humans are a great concern. Different types of dried and treated wood were used to observe whether they had enhanced durability against mould following an accelerated laboratory test method in a climate chamber. Samples were green, air-dried, industrially thermally modified, treated with copper-based preservative, and kiln-dried wood, which were tested within a single test run. The test produced the following main results: The thermal modification increased the durability of the wood, and the protective effectiveness of alternative treatments was comparable to that of commercially available copper-based treatment. However, the initial moisture content of the samples during mould exposure had a great influence on the onset of mould growth. The risk of mould susceptibility of industrial kiln-dried lumber can be reduced by drying using the double-layering technique and planing off the nutrient enriched evaporation surfaces. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect