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Reliefs
Horčicová, Monika ; Sedlák, Jan (referee) ; Gabriel, Michal (advisor)
This master´s thesis consists of three relief objects composed from femur bones. The first relief object is geodetic structure applied to the shape of a sphere. The following two are deformed by softening the material from which they are cast. The second relief object also works with geometry (a square at the base) and systematic folding bones according to a clear order. The third relief can directly interfere with the viewer - the individual femurs contain every two magnets and therefore can move freely with them after the metal plate.
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Development of wood-based board materials applying thermal modification process
Buriánek, Vlastimil ; Pipíška,, Tomáš (referee) ; Vaněrek, Jan (advisor)
This diploma thesis deals deals with the effectiveness of polyurethane and phenol-resorcinol-formaldehyde adhesives when applied in bonded joints of thermally treated sheet materials. The thermal resistance of commercially used adhesives was analysed as part of a research activity. Furthermore, the changes in the properties of wood materials after heat treatment were described. In the practical part, the effectiveness of the used adhesives on densified birch plywood was verified with respect to the shear strength of the resulting composite. Based on the results obtained, it was proceeded to verify the effectiveness of densification on spruce plywood.
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Development of new chemically resistant coating system containing secondary raw materials
Stodolovská, Šárka ; Jakubík, Aleš (referee) ; Drochytka, Rostislav (advisor)
New types of highly chemically resistant coating systems, primarily designed for concrete and metal substrates are designed and experimentally verified within the diploma thesis. Secondary raw materials, including solidified hazardous waste, are used as microfillers. The developed coating system is solved in two quality levels – PREMIUM and ECOLOGY. The level of PREMIUM is mainly designed for environments where extreme chemical stress is occurring. The polymer coating systém ECOLOGY can be used in environments where aggressive chemical media also act, however the ecological foot of the input raw materials is most important. The diploma thesis is dealing with current issues in the practice and it is the part of the research project.
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SPECIAL POLYMER COATINGS AND SCREEDS MATERIALS WITH USE OF SECONDARY RAW MATERIALS
Žlebek, Tomáš ; Seidlová, Michaela (referee) ; Bydžovský, Jiří (referee) ; Ďurica, Tibor (referee) ; Drochytka, Rostislav (advisor)
The work deals with the development of new polymeric coatings and screeds – epoxy, polyurethane and vinyl ester materials with the use of hazardous waste in the form of fillers. The areas that are destined for their landfill are constantly expanding and the costs of disposing of this waste are high. Their use eliminates negative impacts on the environment, but also leads to significant financial savings. The aim of this PhD thesis was to find a suitable way to treat selected hazardous waste and experimentally verify the possibilities of using the fillers pre-treated by optimal way in polymer coatings and screeds. The coatings and screeds are intended primarily for concrete substrates but the possibility of use on metal substrates, asphalt and cement-bonded particle boards was also been verified. These materials serve as a secondary protection of structures against the adverse effects of weather conditions. Secondary raw materials were used as fillers, which were fluidized bed combustion fly ash contaminated due to flue gas denitrification and specially pre-treated hazardous waste (solidification products). The aim was to proceed progressive use of the secondary raw materials as much as possible in order to reduce landfilling in the maximum possible way. It was necessary to treat hazardous waste in such a way that the most effective solidification would be achieved. The behavior of the solidifaction products in the polymer matrix, the distribution of particles in the structure and the disruption of coatings and screeds due to chemical stress were also investigated.
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Development of new chemically resistant coating system containing secondary raw materials
Stodolovská, Šárka ; Jakubík, Aleš (referee) ; Drochytka, Rostislav (advisor)
New types of highly chemically resistant coating systems, primarily designed for concrete and metal substrates are designed and experimentally verified within the diploma thesis. Secondary raw materials, including solidified hazardous waste, are used as microfillers. The developed coating system is solved in two quality levels – PREMIUM and ECOLOGY. The level of PREMIUM is mainly designed for environments where extreme chemical stress is occurring. The polymer coating systém ECOLOGY can be used in environments where aggressive chemical media also act, however the ecological foot of the input raw materials is most important. The diploma thesis is dealing with current issues in the practice and it is the part of the research project.
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Reliefs
Horčicová, Monika ; Sedlák, Jan (referee) ; Gabriel, Michal (advisor)
This master´s thesis consists of three relief objects composed from femur bones. The first relief object is geodetic structure applied to the shape of a sphere. The following two are deformed by softening the material from which they are cast. The second relief object also works with geometry (a square at the base) and systematic folding bones according to a clear order. The third relief can directly interfere with the viewer - the individual femurs contain every two magnets and therefore can move freely with them after the metal plate.
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