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Specific cement composite based on secondary raw materials with emphasis on durability
Figala, Petr ; Dohnálek,, Pavel (referee) ; Drochytka, Rostislav (advisor)
Nowadays the attention to the utilization of secondary raw materials as a component of building materials is being paid to in the Czech Republic and in the world. This thesis deals with possibilities of using secondary raw materials as partial cement substitutes in industrial floors. The aim of this thesis is to verify the influence of cement substitution amount with secondary raw materials and their fineness of grinding on the properties of the floor surface in time and on its structure. On the basis of the acquired knowledge, the influence of the pre-treatment of the secondary raw material on the properties of the floor ceiling with an emphasis on the economic aspect was assessed. After evaluating the results, some substitution of cement in the floor screed with secondary raw materials is beneficial. The significant influence of more intensive milling of the floor screeds base on the parameters of the final floor screed was not confirmed. It seems, that it is possible to achieve very good results even when using secondary raw materials with a lower percentage of fine particles. This brings together the economic benefits of lowering the cost of a lower dose of expensive cement by using cheaper secondary raw materials, because pre-treatment of such materials does not require the use of a large amount of energy.
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Evaluation of local filler sources suitability for anhydrite-based screeds
Šikral, Martin ; Kaláb, Michal (referee) ; Drochytka, Rostislav (advisor)
Goal of this thesis is to evaluate suitability of local filler sources for anhydrite based screed floor covers. The theoretical part is mostly aimed at summarization of general findings about flooring constructions and about anhydrite itself. The thesis also includes description of primary and secondary raw materials. The goal of this work is to suggest suitable fillers for anhydrite based screed floor covers in accordance with distance from Sika CZ, s.r.o with residence in Brno – Modrice. At the same time this thesis explores possibility of secondary raw materials usage as a replacement of primary fillers. In conclusion the thesis focuses on the laboratory test of chosen fillers, summarization and discussion of discovered findings.
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Diagnostics of flooring failures and defects in the housing and civic construction
Vrtal, Roman ; Žítt, Petr (referee) ; Schmid, Pavel (advisor)
The object of the thesis is a description of preparation process, realization and subsequent treatment of floors based on calcium sulphate, including problems related to the issue. The aim of the work is to closely acquaint the reader with methods used in diagnostics of flooring failures and defects in the housing and civic construction, including practical applications of these methods on real structures. The work also includes experimental analysis of a real floor construction during local load effect.
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Evaluation of local filler sources suitability for anhydrite-based screeds
Šikral, Martin ; Kaláb, Michal (referee) ; Drochytka, Rostislav (advisor)
Goal of this thesis is to evaluate suitability of local filler sources for anhydrite based screed floor covers. The theoretical part is mostly aimed at summarization of general findings about flooring constructions and about anhydrite itself. The thesis also includes description of primary and secondary raw materials. The goal of this work is to suggest suitable fillers for anhydrite based screed floor covers in accordance with distance from Sika CZ, s.r.o with residence in Brno – Modrice. At the same time this thesis explores possibility of secondary raw materials usage as a replacement of primary fillers. In conclusion the thesis focuses on the laboratory test of chosen fillers, summarization and discussion of discovered findings.
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Specific cement composite based on secondary raw materials with emphasis on durability
Figala, Petr ; Dohnálek,, Pavel (referee) ; Drochytka, Rostislav (advisor)
Nowadays the attention to the utilization of secondary raw materials as a component of building materials is being paid to in the Czech Republic and in the world. This thesis deals with possibilities of using secondary raw materials as partial cement substitutes in industrial floors. The aim of this thesis is to verify the influence of cement substitution amount with secondary raw materials and their fineness of grinding on the properties of the floor surface in time and on its structure. On the basis of the acquired knowledge, the influence of the pre-treatment of the secondary raw material on the properties of the floor ceiling with an emphasis on the economic aspect was assessed. After evaluating the results, some substitution of cement in the floor screed with secondary raw materials is beneficial. The significant influence of more intensive milling of the floor screeds base on the parameters of the final floor screed was not confirmed. It seems, that it is possible to achieve very good results even when using secondary raw materials with a lower percentage of fine particles. This brings together the economic benefits of lowering the cost of a lower dose of expensive cement by using cheaper secondary raw materials, because pre-treatment of such materials does not require the use of a large amount of energy.
|
|
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Diagnostics of flooring failures and defects in the housing and civic construction
Vrtal, Roman ; Žítt, Petr (referee) ; Schmid, Pavel (advisor)
The object of the thesis is a description of preparation process, realization and subsequent treatment of floors based on calcium sulphate, including problems related to the issue. The aim of the work is to closely acquaint the reader with methods used in diagnostics of flooring failures and defects in the housing and civic construction, including practical applications of these methods on real structures. The work also includes experimental analysis of a real floor construction during local load effect.
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