Search for dissertations about: "Thermally modified wood"

Showing result 1 - 5 of 8 swedish dissertations containing the words Thermally modified wood.

2. 1. Thermally Modified Timber : Novel Aspects of Bending Behaviour Towards Grading and Structural Applications

   Author : Joran van Blokland; Stergios Adamopoulos; Anders Olsson; Jan Oscarsson; Mark Hughes; Linnéuniversitetet; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; checks; cracks; digital image correlation; four-point static bending; fracture characteristics; grade determining properties; non-destructive testing; Norway spruce; machine learning; outdoor above-ground exposure; timber grading; scanning electron microscopy; scanning of fibre direction; strain distribution; ThermoWood®; weathering; Forestry and Wood Technology; Skog och träteknik; Byggteknik; Civil engineering;

   Abstract : Thermally modified timber (TMT) has gained market share in Europe as an environmentally friendly and durable building material. Unfortunately, TMT products are currently prohibited for use in structural applications as there is insufficient data to estimate the loss in strength due to thermal modification. READ MORE

4. 2. Surface characterisation of thermally modified spruce wood and influence of water vapour sorption

   Author : Susanna Källbom; Magnus Wålinder; Kristoffer Segerholm; Dennis Jones; Marko Petrič; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thermally modified wood; Norway spruce; inverse gas chromatography IGC ; dynamic vapour sorption DVS ; X-ray photoelectron spectroscopy XPS ; surface energy; Värmebehandlat trä; gran; omvänd gaskromatografi IGC ; dynamic vapour sorption DVS ; röntgenelektronspektroskopi XPS ; ytegenskaper; ytenergi;

   Abstract : Today there is growing interest within the construction sector to increase the proportion of biobased building materials made from renewable resources. By-products or residuals from wood processing could in this case be valuable resources for manufacturing new types of biocomposites. READ MORE

5. 3. Colour – A Reliable Quality-Control Tool for Industrial Thermowood® Production

   Author : Petteri Torniainen; Dennis Jones; Olov Karlsson; Dick Sandberg; Henrik Veikko Juhani Heräjärvi; Luleå tekniska universitet; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Thermally-modified timber; Thermo-S; Thermo-D; colour Lab; Scots pine; Pinus sylvestris; Norway spruce; Picea abies; quality control; Träteknik; Wood Science and Engineering;

   Abstract : The objective of the work presented in this doctoral thesis has been to correlate the commercial output of  ThermoWood® process with a pre-defined, quantifiable, non-destructive measurable parameter - colour, and to show the feasibility of measurements to be the essential part of the internal and external quality-control system. Colour is the most evident property changed of thermally-modified timber (TMT). READ MORE

6. 4. Characteristics of wood plastic composites based on modified wood : Moisture properties, biological performance and micromorphology

   Author : Kristoffer Segerholm; Magnus Wålinder; Mark Hughes; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wood plastic composites; WPC; acetylation; thermal modification; furfurylation; moisture sorption; biological durability; UV excimer laser; micromorphology;

   Abstract : Biobased materials made from renewable resources, such as wood, play an important role in the sustainable development of society. One main challenge of biobased building materials is their inherent moisture sensitivity, a major cause for fungal decay, mold growth and dimensional instability, resulting in decreased service life as well as costly maintenance. READ MORE

7. 5. Effectiveness and Evaluation of Wood Protection against Biological Deterioration Caused by Filamentous Fungi

   Author : Olena Myronycheva; Olov Karlsson; Lone Ross; Luleå tekniska universitet; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Träteknik; Wood Science and Engineering;

   Abstract : Developing a holistic understanding of the biological deterioration of wooden material by fungi in the laboratory and outdoor conditions requires the development of new assessment procedures and tools that allow describing the process with maximum precision and accuracy. Environmental biodeterioration is a complex process including a combination of physical, chemical and biological changes, with many uncertainties limiting the predictability and effectiveness of selected preservatives after laboratory tests. READ MORE