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Possibilities of using Crystallization and sealing Admixtures for Concrete in a highly chemically aggressive Environment
Fittl, David ; Slezák, Viktor (referee) ; Hubáček, Adam (advisor)
Previously neglected and today largely run-down agricultural and farm buildings, which have not been properly maintained, are in a dilapidated state. In recent years, however, farmers and husbandmen have been trying to create a greener and more sustainable environment. Therefore, construction companies and concrete manufacturers are under pressure to produce more resistant concrete structures with enhanced durability for buildings that must withstand aggressive environments. This thesis summarizes the current knowledge of the durability of concrete exposed to highly chemically aggressive environments; it provides a summary of the knowledge of individual types of crystallization additives in concrete; and it includes descriptions of the various types of environment affecting concrete and descriptions of agricultural and farm buildings.
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Study of properties of Fiber-Reinforced Polymers
Fojtášek, Martin ; Hela, Rudolf (referee) ; Bodnárová, Lenka (advisor)
Bachelor thesis deals with monitoring the properties of the FRP reinforcement when exposed to aggressive environments that cause degradation. In the theoretical part of this thesis there are described the method of production, the most commonly used types of FRP profiles, the composition of the FRP profiles, durability of FRP profiles against the action of aggressive environment and durability of the FRP material in the damage environment. Further more there are briefly described the most common types of tests on FRP profiles. In the experimental part of this thesis there are defined conditions for laboratory testing of FRP samples, which were stored in an alkaline environment at temperatures of 20 degrees, 40 degrees and 60 degrees. These samples of the FRP were stored and tested after 90 days. Subsequently there are described the changes of the physical properties of rebar in a time when saving in an aggressive environment.
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Possibilities of using Crystallization and sealing Admixtures for Concrete in a highly chemically aggressive Environment
Fittl, David ; Slezák, Viktor (referee) ; Hubáček, Adam (advisor)
Previously neglected and today largely run-down agricultural and farm buildings, which have not been properly maintained, are in a dilapidated state. In recent years, however, farmers and husbandmen have been trying to create a greener and more sustainable environment. Therefore, construction companies and concrete manufacturers are under pressure to produce more resistant concrete structures with enhanced durability for buildings that must withstand aggressive environments. This thesis summarizes the current knowledge of the durability of concrete exposed to highly chemically aggressive environments; it provides a summary of the knowledge of individual types of crystallization additives in concrete; and it includes descriptions of the various types of environment affecting concrete and descriptions of agricultural and farm buildings.
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|
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Study of properties of Fiber-Reinforced Polymers
Fojtášek, Martin ; Hela, Rudolf (referee) ; Bodnárová, Lenka (advisor)
Bachelor thesis deals with monitoring the properties of the FRP reinforcement when exposed to aggressive environments that cause degradation. In the theoretical part of this thesis there are described the method of production, the most commonly used types of FRP profiles, the composition of the FRP profiles, durability of FRP profiles against the action of aggressive environment and durability of the FRP material in the damage environment. Further more there are briefly described the most common types of tests on FRP profiles. In the experimental part of this thesis there are defined conditions for laboratory testing of FRP samples, which were stored in an alkaline environment at temperatures of 20 degrees, 40 degrees and 60 degrees. These samples of the FRP were stored and tested after 90 days. Subsequently there are described the changes of the physical properties of rebar in a time when saving in an aggressive environment.
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