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The issue of concrete resistance to high temperatures
Krejčík, Jakub ; Hela, Rudolf (referee) ; Bodnárová, Lenka (advisor)
Bachelor´s thesis deals with resistance of cement concrete to high temperatures. Theoretical part of bachelor´s thesis describes changes that occures in concrete at thermal loading and behavior of each component of concrete. Next there were discribed ways to improve resistance of concrete to high temperatures, by choosing the right component or by adding fibre reinforcement. In experimental part composites with bassalt and polypropylen fibre and with bassalt aggregates were tested. In these composites changes of compressive strenght and changes of density were mesured according to the thermal loading. Next individual fibre reinforcement polypropylen, celulose and bassalt fibres were exposed to the thermal loading and their changes were observed.
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Analysis of methods for evaluation ETICS dirtiness
Krejčík, Jakub ; Žák,, Antonín (referee) ; Žižková, Nikol (advisor)
This diploma thesis deals with problems of dirtiness of surface layers of ETICS (External thermal insulation contact system). In the theoretical part, soil damping agents and processes occurring when adhering dirt are described. The practical part then evaluates the impact of the aspects described below on their dirtyness. At the same time, it monitors the differences in staining depending on the type of material and the manufacturer. A methodology for artificial staining with controllable and repeatable conditions was developed in a special simulator, and this methodology was also verified practically. Simultaneously, individual plasters were exposed to the natural environment, for comparison of laboratory and actual conditions.
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Analysis of methods for evaluation ETICS dirtiness
Krejčík, Jakub ; Žák,, Antonín (referee) ; Žižková, Nikol (advisor)
This diploma thesis deals with problems of dirtiness of surface layers of ETICS (External thermal insulation contact system). In the theoretical part, soil damping agents and processes occurring when adhering dirt are described. The practical part then evaluates the impact of the aspects described below on their dirtyness. At the same time, it monitors the differences in staining depending on the type of material and the manufacturer. A methodology for artificial staining with controllable and repeatable conditions was developed in a special simulator, and this methodology was also verified practically. Simultaneously, individual plasters were exposed to the natural environment, for comparison of laboratory and actual conditions.
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The issue of concrete resistance to high temperatures
Krejčík, Jakub ; Hela, Rudolf (referee) ; Bodnárová, Lenka (advisor)
Bachelor´s thesis deals with resistance of cement concrete to high temperatures. Theoretical part of bachelor´s thesis describes changes that occures in concrete at thermal loading and behavior of each component of concrete. Next there were discribed ways to improve resistance of concrete to high temperatures, by choosing the right component or by adding fibre reinforcement. In experimental part composites with bassalt and polypropylen fibre and with bassalt aggregates were tested. In these composites changes of compressive strenght and changes of density were mesured according to the thermal loading. Next individual fibre reinforcement polypropylen, celulose and bassalt fibres were exposed to the thermal loading and their changes were observed.
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