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Self-leveling floors based on secondary raw materials
Darakevová, Michaela ; Šiler, Pavel (referee) ; Opravil, Tomáš (advisor)
The work deals with the use of secondary raw materials in the self-leveling floor systems when used as a secondary raw material perform here especially classic ash, boiler slag and gypsum from flue gas. Work is looking for ways in as much as possible to replace conventional materials used in self-leveling flooring systems, secondary energy products. The aim of this work is to determine the optimal amount and ratio of secondary raw materials in self-leveling flooring compounds so that they are maintained or improved standard properties of these compounds reported in the standards. The work is divided into several points, the first point was first sought appropriate composite binder, where it was used as aggregates reach a standard sand. At other points the sand was then replaced by secondary materials. Were also tested ingredients to influence the rate of cooling, or for the onset of the initial strength.
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Concretes based on solid residues from fluidized bed combustion
Darakevová, Michaela ; Kalina, Lukáš (referee) ; Opravil, Tomáš (advisor)
The work is focused on the possible use of secondary raw materials of the energy industry in the construction industry, particularly in concrete applications, where as the main raw material of the binder composition are used solid fluidized bed combustion residues - filter and ground. The aim of this work is to prepare concrete or concretes based on solid residues from fluidized bed combustion, that will fulfill or at least approximately approach by their parameters to commonly used concretes based on portland cement. The experimental part is divided into several chapters, at first the results of analyzes of feedstock and solid residues from fluidized bed combustion, portland cement and calcium hydroxide. Other chapters describe proposals for alternative binders, concrete, characterization and testing. Mainly were observed changing properties of the prepared concretes by changing the ratio of binders and aggregates. In tests were evaluated mainly mechanical properties and phase composition.
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Self-leveling floors based on secondary raw materials
Darakevová, Michaela ; Šiler, Pavel (referee) ; Opravil, Tomáš (advisor)
The work deals with the use of secondary raw materials in the self-leveling floor systems when used as a secondary raw material perform here especially classic ash, boiler slag and gypsum from flue gas. Work is looking for ways in as much as possible to replace conventional materials used in self-leveling flooring systems, secondary energy products. The aim of this work is to determine the optimal amount and ratio of secondary raw materials in self-leveling flooring compounds so that they are maintained or improved standard properties of these compounds reported in the standards. The work is divided into several points, the first point was first sought appropriate composite binder, where it was used as aggregates reach a standard sand. At other points the sand was then replaced by secondary materials. Were also tested ingredients to influence the rate of cooling, or for the onset of the initial strength.
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