Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fungal susceptibility of bio-based building materials
Bio-based building materials are made from renewable resources and produced with considerably less energy and associated carbon emissions than many traditional building materials. This makes them essential building elements in the much needed transition towards a more sustainable building industry. Many bio-based building materials are (to some extent) biodegradable, an excellent quality at the end of a material’s service life as it solves waste issues, but a less desirable feature during use. When an organic material is exposed to favourable moisture and temperature conditions as well as to degrading organisms, its functional and aesthetic service life can decrease. The risk of fungal decay depends on the environmental conditions and the material resistance. The purpose of this PhD thesis was to determine how different material characteristics affect the decay risk of bio-based building materials. A test method was developed to assess the importance of material chemistry as compared to material structure and moisture dynamics on durability. State-of-the-art methods (LFNMR, IR, X-ray CT) were applied to better understand the moisture dynamics of wood-based panels and bio-based insulation materials and a method was developed to assess the influence of material structure on decay progress with X-ray CT. As material moisture dynamics and structure have a (major) influence on durability and decay risk, there is a great opportunity to tailor bio-based building materials for diversified end uses and moisture conditions, ensuring an increased service life.
Fungal susceptibility of bio-based building materials
Bio-based building materials are made from renewable resources and produced with considerably less energy and associated carbon emissions than many traditional building materials. This makes them essential building elements in the much needed transition towards a more sustainable building industry. Many bio-based building materials are (to some extent) biodegradable, an excellent quality at the end of a material’s service life as it solves waste issues, but a less desirable feature during use. When an organic material is exposed to favourable moisture and temperature conditions as well as to degrading organisms, its functional and aesthetic service life can decrease. The risk of fungal decay depends on the environmental conditions and the material resistance. The purpose of this PhD thesis was to determine how different material characteristics affect the decay risk of bio-based building materials. A test method was developed to assess the importance of material chemistry as compared to material structure and moisture dynamics on durability. State-of-the-art methods (LFNMR, IR, X-ray CT) were applied to better understand the moisture dynamics of wood-based panels and bio-based insulation materials and a method was developed to assess the influence of material structure on decay progress with X-ray CT. As material moisture dynamics and structure have a (major) influence on durability and decay risk, there is a great opportunity to tailor bio-based building materials for diversified end uses and moisture conditions, ensuring an increased service life.
Fungal susceptibility of bio-based building materials
De Ligne, Liselotte (Autor:in) / Van Acker, Joris / Van den Bulcke, Jan / De Baets, Bernard / Baetens, Jan
01.01.2021
Hochschulschrift
Elektronische Ressource
Englisch
DDC:
690
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