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Optimization of recycled concrete materials from precast concrete elements and their characteristics for building information model
Venkrbec, Václav ; Mésároš,, Peter (referee) ; Šuhajda, Karel (referee) ; Henková, Svatava (advisor)
The dissertation thesis deals with the use of recycled concrete aggregates obtained from deconstructed parts of a precast panels’ apartment building. Furthermore, the work presents an optimization supplier-logistics algorithm to achieve a wider application of recycled aggregate concrete (RAC) in structural concrete in a new building. As part of the newly developed optimization algorithm of ready-mixed concrete suppliers, non-graphical data from the building information model (BIM) were intensively used. The work also addresses the transfer of data from and back to the information model and the definition of characteristics needed to optimize the entire process. At the theoretical level, the work deals with a comprehensive literature review of the above-mentioned fields. The experimental part of the work is focused on materials research carried out in order to verify the suitability of a particular type of RAC for structural use. The work introduces the procedures and test results of two types of recycled aggregates and then presents a range of recycled concrete recipes with partial replacement of aggregates for RCAs, obtained from prefabricated panels of high-rise buildings. The gained test results show the technical suitability of the tested RCA sources for producing medium-strength structural RAC. A significant part of the analytically oriented experimental part of the work is the logistic optimization scenario with its own matrix-based discrete algorithm and economic graphical evaluation. The case study examines the relevance of the proposed algorithm on a real scenario, namely the construction of the scientific technology institute CEITEC in Brno. Furthermore, the work summarizes the issue of BIM and presents a methodology for handling non-graphical information of the building model to define the characteristics of recycled concrete in buildings. The conclusions are addressed both for practice and for the development of scientific disciplines. The work provides
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Optimization of aggregate composition with max. grain 22 mm for concretes
Opat, Lubomír ; Vojtek, Miroslav (referee) ; Hela, Rudolf (advisor)
This bachelor thesis deals with the issue of aggregate curve design, proportional representation of the individual separated aggregate sizes in the formula for concrete mixture. It clarifies the origin of aggregate types, from their mother rocks. It describes tests on aggregates, including the test of the shape suitability. In the practical part, there are nine formulas, two of them mixed with the maximum grain size of 16 mm, seven with the grain size of 22 mm. They are instances of fine curves or mixture of coarse curve. Aggregate dust or crushed fine aggregate was also used.
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Optimization of recycled concrete materials from precast concrete elements and their characteristics for building information model
Venkrbec, Václav ; Mésároš,, Peter (referee) ; Šuhajda, Karel (referee) ; Henková, Svatava (advisor)
The dissertation thesis deals with the use of recycled concrete aggregates obtained from deconstructed parts of a precast panels’ apartment building. Furthermore, the work presents an optimization supplier-logistics algorithm to achieve a wider application of recycled aggregate concrete (RAC) in structural concrete in a new building. As part of the newly developed optimization algorithm of ready-mixed concrete suppliers, non-graphical data from the building information model (BIM) were intensively used. The work also addresses the transfer of data from and back to the information model and the definition of characteristics needed to optimize the entire process. At the theoretical level, the work deals with a comprehensive literature review of the above-mentioned fields. The experimental part of the work is focused on materials research carried out in order to verify the suitability of a particular type of RAC for structural use. The work introduces the procedures and test results of two types of recycled aggregates and then presents a range of recycled concrete recipes with partial replacement of aggregates for RCAs, obtained from prefabricated panels of high-rise buildings. The gained test results show the technical suitability of the tested RCA sources for producing medium-strength structural RAC. A significant part of the analytically oriented experimental part of the work is the logistic optimization scenario with its own matrix-based discrete algorithm and economic graphical evaluation. The case study examines the relevance of the proposed algorithm on a real scenario, namely the construction of the scientific technology institute CEITEC in Brno. Furthermore, the work summarizes the issue of BIM and presents a methodology for handling non-graphical information of the building model to define the characteristics of recycled concrete in buildings. The conclusions are addressed both for practice and for the development of scientific disciplines. The work provides
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Optimization of aggregate composition with max. grain 22 mm for concretes
Opat, Lubomír ; Vojtek, Miroslav (referee) ; Hela, Rudolf (advisor)
This bachelor thesis deals with the issue of aggregate curve design, proportional representation of the individual separated aggregate sizes in the formula for concrete mixture. It clarifies the origin of aggregate types, from their mother rocks. It describes tests on aggregates, including the test of the shape suitability. In the practical part, there are nine formulas, two of them mixed with the maximum grain size of 16 mm, seven with the grain size of 22 mm. They are instances of fine curves or mixture of coarse curve. Aggregate dust or crushed fine aggregate was also used.
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