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City within the City / "Trnitá City Block"
Solár, Michal ; Hybská, Bohumila (referee) ; Nový, Vítězslav (advisor)
The area of today's southern center of Brno was determined from the very beginning by the location of the rivers Svratka, Svitava and their drives, which defined the southern part of the city as a fertile area suitable for cultivation. After the advent of industrialism, the city transformed rapidly. The southern area was transformed from smaller villages into industrial units, which, due to the proximity of water and the newly established railway, expanded after 1838 to the entire vicinity of the Trnitá district. Already in this period, the location of the station by the Svratka River (in the proposed position from 2016) began to be considered, but due to the waterlogged soil and difficult construction conditions, it was decided for the station under the walls. It was this decision and the unsatisfactory conditions of waterlogged land for the development of the industrial area closer to the Svratka River that caused the suspension of the development of the southern suburbs. The proposal seeks to reflect the context of Brno's apartment buildings in the vicinity of the area, which lacks a comprehensive context and scale. At the same time, however, to solve the environmental problem by proper management of rainwater or the use and design of a recycled perimeter cladding of material obtained after the demolition of other buildings. The building is structurally designed as a combination of a wall system with monolithic, communication cores and the first floor.
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Testing ways of use of secondary raw materials replacing naturals aggregate.
Vašek, Tomáš ; Holák, Michal (referee) ; Hela, Rudolf (advisor)
Master's thesis consists of two parts, theoretical and practical. In the theoretical section are listed basic information about alternative aggregates used for concrete mixture, like polystyrene, cinder and recycled concrete. Further, the influence of these alternative aggregates, used as secondary raw materials, on the behaviour and properties of fresh respectively hardened concrete. Possibilities of application concrete containing secondary raw materials are mentioned. In the practical part are experimentally verified physical and mechanical properties of concrete containing crushed waste polystyrene beads, furthermore thermal insulation properties and resistance to elevated temperatures is tested. Influence of heating plant cinder powder as active addition to concrete mixture was tested. As a next is prepared concrete with replacement of coarse aggregate by cinder and recycled concrete and tested. The influence of these secondary raw materials on workability, compressive strength, frost resistance and water permeability of concrete is also defined. The last part of research is focused on recycled concrete such as main material used in mixture of aggregates bonded with cement, dispose for base layers in roads. In conclusion are discussed results from experimental research and summary of knowledge’s about using polystyrene, cinder and recycled concrete as aggregates for concrete mixtures.
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Particle Polymer Composite in structural details of the building envelope
Dostálová, Darina ; Lavický, Miloš (referee) ; Vokoun,, David (referee) ; Matějka, Libor (advisor)
Due to a European energy concept for reducing energy consumption and also the concept of sustainable development, there is a growing demand for reduced energy consumption during the operation of the building and hence increasing demands on the thermal and mechanical properties of the building envelope. For this reason, it is necessary to look for materials that could meet both thermal and mechanical properties, as well as mechanical resistance and loadability, especially for the application for the foundations of the house, the base of the house and for application to structural details for elimination of the thermal bridges between interior and exterior boundaries. The main motivation for choosing the topic of thesis was to find materials derived from recycled or secondary raw materials that would be suitable for manufacturing composite applicable for structural details in the envelope of the building and for insulating in humid environment. An economic and environmental aspect plays an important role in the choice of material. The main theme of the thesis is the laboratory manufacturing of a composite with a thermoplastic matrix derived from recycled plastic materials and waste foam as a phase. Has been developed a unique Waste-based Particle Polymer Composite (WPPC) made from recycled foam and polypropylene. However, before WPPC can be reliably used by construction designers, physical properties of WPPC must be accurately identified. Therefore, it was designed laboratory manufacturing system and sample testing system, it was studied thermal, mechanical, thermomechanical and moisture absorptivity of WPPC. Application of finished composite material with satisfying thermal insulation properties to structural details to eliminate the thermal bridge, was the next step. These are details of the unloaded, prefabricated balconies, windows, atics, as well as basement constructions and the heel of the central load-bearing wall, the terrain flooring and the staircase wall
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City within the City / "Trnitá City Block"
Solár, Michal ; Hybská, Bohumila (referee) ; Nový, Vítězslav (advisor)
The area of today's southern center of Brno was determined from the very beginning by the location of the rivers Svratka, Svitava and their drives, which defined the southern part of the city as a fertile area suitable for cultivation. After the advent of industrialism, the city transformed rapidly. The southern area was transformed from smaller villages into industrial units, which, due to the proximity of water and the newly established railway, expanded after 1838 to the entire vicinity of the Trnitá district. Already in this period, the location of the station by the Svratka River (in the proposed position from 2016) began to be considered, but due to the waterlogged soil and difficult construction conditions, it was decided for the station under the walls. It was this decision and the unsatisfactory conditions of waterlogged land for the development of the industrial area closer to the Svratka River that caused the suspension of the development of the southern suburbs. The proposal seeks to reflect the context of Brno's apartment buildings in the vicinity of the area, which lacks a comprehensive context and scale. At the same time, however, to solve the environmental problem by proper management of rainwater or the use and design of a recycled perimeter cladding of material obtained after the demolition of other buildings. The building is structurally designed as a combination of a wall system with monolithic, communication cores and the first floor.
|
|
|
Particle Polymer Composite in structural details of the building envelope
Dostálová, Darina ; Lavický, Miloš (referee) ; Vokoun,, David (referee) ; Matějka, Libor (advisor)
Due to a European energy concept for reducing energy consumption and also the concept of sustainable development, there is a growing demand for reduced energy consumption during the operation of the building and hence increasing demands on the thermal and mechanical properties of the building envelope. For this reason, it is necessary to look for materials that could meet both thermal and mechanical properties, as well as mechanical resistance and loadability, especially for the application for the foundations of the house, the base of the house and for application to structural details for elimination of the thermal bridges between interior and exterior boundaries. The main motivation for choosing the topic of thesis was to find materials derived from recycled or secondary raw materials that would be suitable for manufacturing composite applicable for structural details in the envelope of the building and for insulating in humid environment. An economic and environmental aspect plays an important role in the choice of material. The main theme of the thesis is the laboratory manufacturing of a composite with a thermoplastic matrix derived from recycled plastic materials and waste foam as a phase. Has been developed a unique Waste-based Particle Polymer Composite (WPPC) made from recycled foam and polypropylene. However, before WPPC can be reliably used by construction designers, physical properties of WPPC must be accurately identified. Therefore, it was designed laboratory manufacturing system and sample testing system, it was studied thermal, mechanical, thermomechanical and moisture absorptivity of WPPC. Application of finished composite material with satisfying thermal insulation properties to structural details to eliminate the thermal bridge, was the next step. These are details of the unloaded, prefabricated balconies, windows, atics, as well as basement constructions and the heel of the central load-bearing wall, the terrain flooring and the staircase wall
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| |
|
|
Testing ways of use of secondary raw materials replacing naturals aggregate.
Vašek, Tomáš ; Holák, Michal (referee) ; Hela, Rudolf (advisor)
Master's thesis consists of two parts, theoretical and practical. In the theoretical section are listed basic information about alternative aggregates used for concrete mixture, like polystyrene, cinder and recycled concrete. Further, the influence of these alternative aggregates, used as secondary raw materials, on the behaviour and properties of fresh respectively hardened concrete. Possibilities of application concrete containing secondary raw materials are mentioned. In the practical part are experimentally verified physical and mechanical properties of concrete containing crushed waste polystyrene beads, furthermore thermal insulation properties and resistance to elevated temperatures is tested. Influence of heating plant cinder powder as active addition to concrete mixture was tested. As a next is prepared concrete with replacement of coarse aggregate by cinder and recycled concrete and tested. The influence of these secondary raw materials on workability, compressive strength, frost resistance and water permeability of concrete is also defined. The last part of research is focused on recycled concrete such as main material used in mixture of aggregates bonded with cement, dispose for base layers in roads. In conclusion are discussed results from experimental research and summary of knowledge’s about using polystyrene, cinder and recycled concrete as aggregates for concrete mixtures.
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