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Study of passive stabilisation of building materials temperature
Šebek, Jan ; Pavlík,, Zbyšek (referee) ; Zmeškal, Oldřich (advisor)
The topic of presented master’s thesis was study of passive stabilization of building materials temperature. The main goal of this thesis was measuring and characterization of the thermal properties of building materials, which are used to PCM technology. PCM technology is based on utilization of latent heat of phase change. At the beginning of this thesis it was needed to define physical principle of phase change, then the most usable PCM chemicals (e.g. paraffin, Glauber’s salt, hexahydrate calcium chloride) and their basic physical properties (especially thermo-physical), background research of building materials with PCM and also the methods of thermo-physical properties measurement. It was also needed to characterize measured building materials and define theirs thermal parameters; because the values of thermal parameters of measured samples were compared to these values. In the experimental part of my thesis are measurements of material thermal analysis, which are methods, where the properties of materials are studied as they change with temperature. I had used to differential scanning calorimetry, transient pulse method and other methods, which are usable for thermo-physical properties measuring and characterization. I have been much interested in properties of measured material, which were specific heat capacity, temperature diffusivity, heat conductivity and phase change temperature (the melting point of PCM). At the end of my thesis the findings of all methods were finally summarized, compared and commented.
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Price comparison of variant technical solution of the building
Čapek, Dušan ; Rázl, Roman (referee) ; Tichá, Alena (advisor)
The subject of this thesis is to compare the price of a variant of the technical solution to a specific building. On introduction describes the various parts of the construction budget and their origins. In the practical part the comparison of alternative building materials on the basis of their technical characteristics. Victorious materials are inserted into the original budget, so a change was made final price of the building.
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Modern trends in the building construction
PROBOŠTOVÁ, Tereza
This bachelor thesis on "Modern Trends in Construction" deals with an overview of building materials that are most commonly used in the construction industry in the 21st century, especially for houses. These include thermal insulation, waterproofing, jointing materials, multi-purpose materials, suitable materials for vertical and horizontal structures, roofing and flooring materials. The work in each chapter is divided according to the building structures concerned. Both traditional and modern materials are covered. The work explains the chemical composition, manufacture and application of modern building materials. Their mechanical and physical properties and their benefits and limitations are also discussed. An extensive review of building materials is presented in the form of a literature search. Part of the extensive work is to find possible modern building materials that could be used to construct the family house "Vertigo". The practical part focuses on the creation of a specimen book containing selected building materials in the field of waterproofing, thermal insulation materials, wall elements, cladding, roofing, multi-purpose materials and the respective bonding of the given samples. The main contribution of this work is that it can serve as a supporting text for students, of certain engineering disciplines involving building materials.
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Changes in the properties of cement-bonded particleboards due to fluctuations in atmospheric humidity
Vasas, Silvestr ; Vacula, Miroslav (referee) ; Bydžovský, Jiří (advisor)
The work is focused on changing dimensional, volume, weight and mechanical properties of cement bonded particleboards due to fluctuations in the humidity of the surrounding environment. Part of the work is a search of scientific literature focused on the possible modification of organic materials used as fillers in cement bonded matrices, as well as cement bonded composites. Since wood is used as a filler, which is very susceptible to moisture, it is important to treat it – thermally, chemically. In the practical part, various recipes of cement bonded particleboards were inspired by previous research are designed and tested. The laboratory assessment of changes in the properties of cement bonded particleboards due to relative humidity demonstrated compliance with the theoretical foundations, as a result of the thesis, suitable recipes for the production of cement bonded particleboards including their verification were defined.
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Cost estimating of water supply and sewerage
Pravcová, Tereza ; Roudná, Veronika (referee) ; Tichá, Alena (advisor)
The bachelor thesis deals with the budgeting of water main and gravity sewer system. The theoretical part provides basic information related to the price. Historical development of pricing in construction, basic concepts and regulations. In next part there are described costs in budgeting, types of budgets and basic characteristics of water management structures. The practical part deals with the revaluation of budgets and the creation of an analysis of the development of prices of building materials and works of water management structures.
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Influence of humidity changes to properties of building materials with organic filler
Vasas, Silvestr ; Vacula, Miroslav (referee) ; Bydžovský, Jiří (advisor)
The bachelor's thesis deals with the issue of dimensional changes of building materials containing organic filler, in connection with changes in the humidity of the environment in which the material is located. Searches of knowledge, especially from the scientific literature showed a significant effect of moisture on volume and weight changes of both wood itself and wood of cement composites. In this respect, the treatment of wood (thermal, chemical, etc.) ort he surface treatment of the final wood of the cement composite (coating systém, impregnation, etc.) is essential to reduce the rate of change due to ambient humidity. Experimental laboratory assessment of dimensional and mass changes proved compliance with theoretical knowledge and extended them by specifying the effect on individual dimensions. The different behavior of cement-bonded particleboards in terms of their hygroskopicity was demonstrated on the changes of the boards surface threatment with the coating system and on the boards without surface threatment.
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Computational Model and Analysis of Energy-Aware Buildings
Kaleta, Radoslav ; Šimek, Václav (referee) ; Strnadel, Josef (advisor)
The thesis deals with the analysis of the properties of the external and internal environment of the buildings, the possibilities of heating and cooling. The emphasis is mainly on the energy intensity and the impact of weather conditions on the building temperature during the year. The model created by UPPAAL SMC describes the behavior of heating and cooling during the year and identifies the energy demand of the given building. The building model itself can be partially modified using the built-in user interface.
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Computational structural assessment of buildings in terms of energy performance
Kaplan, Václav ; TROJAN,, Karel (referee) ; Šťastník, Stanislav (advisor)
This thesis deals with the computational comparison of the energy performance of buildings of various construction materials. The work aims at assessing the building as a thermal system. The theoretical part describes the methods for calculating the energy performance of buildings. The experimental part of the work focuses on quantifying the heat consumption of specific buildings in terms of thermal stability and it is later compared with the results calculated in accordance with the applicable technical standards.
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Possibilities of utilizing waste from the production of cement-bonded particleboards in building materials
Bartoň, Andrej ; Vacula, Miroslav (referee) ; Bydžovský, Jiří (advisor)
This bachelor thesis deals with possible applications of waste created during cement-bonded particleboard in building materials production. The theoretical part of the thesis analyzes the individual components and processes in the production of cement-bonded particleboard, production processes during which the waste is produced, and the form and quantity the waste can be found in. The theoretical part focuses on the treatment of the various waste forms and their further use in modified or untreated form. In the practical part, the influence of the binder parts substitution on the cement matrix properties is verified. Fine loose waste from the cement-bonded particleboard was used for the sample production.
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