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The study of alkali-silica reaction in the cement-concrete shelters
Láznička, Josef ; Urbanec, Květoslav (referee) ; Hela, Rudolf (advisor)
Alkali – silica reaction is concrete durability problem resulting in significant maintenance and reconstruction costs to concrete infrastructures. This paper intends to summarize the current state of understanding this reaction with respect to reaction mechanisms. The experimental part of this paper deals with deterioration observed in cement – concrete cover for sections of highways in the Czech Republic. The objective was to determine wheter concrete failure arose due alkali – silica reaction or other mechanism.
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Issues of experimental determination of concrete moisture
Vaněk, Dominik ; Přikryl, Jan (referee) ; Sedlmajer, Martin (advisor)
This bachelor´s thesis studies issues of moisture determination in concrete. First part describes the relationship between moisture and concrete structure. Second part is dedicated to methodology of concrete moisture determination and also to an own experiment. Main focus of thesis is to evaluate the accuracy and relevance of selected methods of determining the concrete moisture.
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Study of the effect of sealing paints on the resistance of concrete to weathering
Sláma, Radek ; Hela,, Vlastimil (referee) ; Hubáček, Adam (advisor)
Purpose of this bachelor thesis is to summarize existing knowledge of sealing paints and evaluate its effect on concrete surface. Emphasis is placed especially on description of single paint type, application methods and description of degradation effect on concrete, which protective painting should prevent. In experimental part of this thesis are researched properities of chosen sealing paintings types on resistence of concrete to wheathering. Observed tests are especially absorption, resistance of concrete surface to effect of chemical and defrosting substances and depth of penetration of water under pressure.
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Issues of experimental determination of concrete moisture
Vaněk, Dominik ; Přikryl, Jan (referee) ; Sedlmajer, Martin (advisor)
This bachelor´s thesis studies issues of moisture determination in concrete. First part describes the relationship between moisture and concrete structure. Second part is dedicated to methodology of concrete moisture determination and also to an own experiment. Main focus of thesis is to evaluate the accuracy and relevance of selected methods of determining the concrete moisture.
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Study of the effect of sealing paints on the resistance of concrete to weathering
Sláma, Radek ; Hela,, Vlastimil (referee) ; Hubáček, Adam (advisor)
Purpose of this bachelor thesis is to summarize existing knowledge of sealing paints and evaluate its effect on concrete surface. Emphasis is placed especially on description of single paint type, application methods and description of degradation effect on concrete, which protective painting should prevent. In experimental part of this thesis are researched properities of chosen sealing paintings types on resistence of concrete to wheathering. Observed tests are especially absorption, resistance of concrete surface to effect of chemical and defrosting substances and depth of penetration of water under pressure.
|
|
|
The study of alkali-silica reaction in the cement-concrete shelters
Láznička, Josef ; Urbanec, Květoslav (referee) ; Hela, Rudolf (advisor)
Alkali – silica reaction is concrete durability problem resulting in significant maintenance and reconstruction costs to concrete infrastructures. This paper intends to summarize the current state of understanding this reaction with respect to reaction mechanisms. The experimental part of this paper deals with deterioration observed in cement – concrete cover for sections of highways in the Czech Republic. The objective was to determine wheter concrete failure arose due alkali – silica reaction or other mechanism.
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