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Studying the properties of vibro-pressed concrete products, with coated surface
Bednář, Patrik ; Eger, Lukáš (referee) ; Hubáček, Adam (advisor)
Technology so-called vibro-pressed concrete is currently used, inter alia, also for the manufacture of concrete products such as concrete paving blocks, slabs, kerbs, masonry and other elements. Especially for products intended for the covers of the tiles have recently begin to apply their ennoble facing layers by using special methods and technologies. The objective of this bachelor´s thesis is a summary of current knowledge about vibro-pressed concrete products whose surface is finally adjusted with the coating, followed by hardening the surface. Emphasis will be put on the description of the current methods and different ways of finalization facing layers of these products.
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The research of cause of failure of concrete elements Face Block
Eger, Lukáš ; Husařík, Petr (referee) ; Dufka, Amos (advisor)
This master thesis focus on the analysis of effects that cause defects in concrete blocks. Experiences show that the defect of the blocks are often manifested in the form of cracks. Great rate of occurrence of defects is attributed to volume changes of poor quality concrete filler. The aim of this master thesis is to analyze the finding from the practical use and exploration of the requirements for the actual blocks and especially the concrete filler which is used to make monolithic structures built from these blocks. The attention will be paid to the interaction between the block and the concrete filler. Here we focus mainly on the volume changes caused by a change of moisture level and especially the cyclic moisture.
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Activation admixtures in concrete
Eger, Lukáš ; Hela, Vlastimil (referee) ; Hela, Rudolf (advisor)
The aim of my bachelor´s work is the summarization and focus on admixure concrete,and the active and inert admixure, which have some positive characteristies for fresh and hardened concrete. Theoretically, I tried to study the increase of their joining potential while this characteristic can be used by either chemici or mechnical way, their combination as well. I also Works on evaluetion of physically mechanical influence for fresh and hardened concrete that can up to 60 days old while the cement was partly substituted by admixure of different character.
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