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The utilization of the asphalt and concrete recycled materials to roads
Žďára, Zbyněk ; Šperka, Pavel (referee) ; Stehlík, Dušan (advisor)
This diploma thesis is divided into two parts, theoretical and practical. The is a review om the topic of recycled asphalt pavement and recycled concrete and their possible use in road construction in the theoretical part. The individual chapters deal with describing these materials, their production, and their use in construction layers of pavements. In the next chapters the attention is also paid to their problematic features and foreign experience using these materials in pavements. In the practical part, laboratory samples of recycled asphalt pavement and recycled concrete and their mixtures with cement are tested. The main purpose is to verify the applications of these mixtures of recycled asphalt pavement and recycled concrete in the bonded base layers of the pavement. Another purpose is to compare how these mixtures individual properties with different proportions of both components and different amounts of cement will be different. In the end, the two mixtures with the best properties was selected and the modulus of elasticity was experimentally determined for the possibility of replacing the currently used base layers and the economic evaluation of this design was made.
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Recycled aggregates to asphalt mixtures of the flexible pavements
Kropáč, Pavel ; Zdřálek, Petr (referee) ; Stehlík, Dušan (advisor)
This thesis deals with the theoretical part of the creation, distribution and recycling of construction and demolition waste. Subsequently covers made from these recycled construction and demolition waste and its potential application in structural layers of the pavement. In the practical part of the thesis deals with monitoring the overall properties of nine asphalt mixtures with different proportion of recycled concrete aggregate and asphalt binder, which are designed and intended for bed asphalt pavement. The recycled concrete aggregate and asphalt are performed various laboratory tests, the results are subjected to a comparison with the relevant standards and TP 210. The conclusion is made price comparisons of asphalt mixtures.
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Quality of the recycled aggregates to the roads
Sokolová, Veronika ; Pecha, Karel (referee) ; Stehlík, Dušan (advisor)
Theoretical part of the thesis describes the production, properties and characteristics of recycled aggregates and the resulting assessment of the suitability of its use in the construction of roads. The practical part is focused on implementing the basic tests of aggregates according to applicable standards, such as bulk density, water absorption and resistance to crushing of aggregates. Tests are performed on fractions of the three types of recycled aggregate and then compared with the same results of tests on natural aggregates.
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The Use of Alternative Sources in the Building Industry
Dvořák, Jakub ; Vymazal, Tomáš (referee) ; Žižková, Nikol (advisor)
This bachelor thesis is focused on the use of waste as alternative raw materials in construction industry. The first part is dedicated to the historical development of waste management, to the valid legislation in the Czech Republic in 2017 and outlines the distribution of waste according to various criteria. The information about waste production and waste management is processed in the form of tables and graphs. The more extensive second part of the thesis uses theoretical knowledge in the field of waste management and on the base of the Waste Separation Catalog is composed a list of waste materials which can be used in construction industry. Further are described the possibilities of suitable waste utilization at production and also mentioned some particular construction products with their features.
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Use of recycled building materials to urban pavement constructions
Průdková, Hana ; Hýzl, Petr (referee) ; Stehlík, Dušan (advisor)
This bachelor thesis describes the possibilities of construction and demolition waste management. It examines the issue of allocation and management of this waste and evaluates possibilities of their further use. It deals with production and use of recycled materials in construction of urban roads and economic advantage of recycled materials in comparison to natural aggregates. This work also discusses the issue of aerated concrete, as a modern building material, that will soon appear in construction and demolition waste to a greater extent. The practical part examines properties of mixed recyclates with a certain amount of brick and aerated concrete particles by testing the bulk density of grains and water absorption, freezing and thawing resistance and crushing resistance.
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Waste building materials to base layers of the pavements
Žďára, Zbyněk ; Hýzl, Petr (referee) ; Stehlík, Dušan (advisor)
This bachelor thesis is divided into two parts, theoretical and practical. In the theoretical part, there is processed information about recycled construction waste and their possible use in road construction in the form of research. The individual chapters deal with the description of these materials, their production, their use in base layers of the pavement and attention is also paid to their problematic features and foreign experience. In the practical part, laboratory samples of recycled asphalt pavement and recycled aggregates were tested. The main purpose was to find out if it was possible to use a mixture of recycled asphalt pavement and recycled aggregates in the base layers of the pavement with a low traffic load. Another purpose was to compare the properties of mixtures with different content of both recycled materials and to see how the bearing capacity of these mixtures changes when an elevated temperature is applied to them.
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The influence of the location of buildings on price and cost of a building
Petr, Lubomír ; Výskala, Miloslav (referee) ; Aigel, Petr (advisor)
The thesis deals with the influence of the location of buildings on the price and the cost of a building. In the first theoretical part it deals with brownfields, redevelopment of geological environment and construction and demolition waste. In this passage the various concepts, their division, the legislative side of things and generally their problems are explained. The second part is practical, it analyzes the cost associated with the revitalization of abandoned buildings for the possibility of reuse of land. For these purposes the representative brownfield is created and it is set in different environment. In conclusion all important findings are summarized.
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Study of durability of concrete with recycled concrete and brick
Voráč, Jiří ; Hela,, Vlastimil (referee) ; Hela, Rudolf (advisor)
This bachelor thesis deals with issues of recycled concrete. The theoretical part describes the process of recycling the construction and demolition waste and describes requirements for recycled aggregate and recycled concrete in Czech republic and some of the member states of EU. The experimental part is focused on design of concrete with a substitution of coarse aggregate with a recycled concrete and brick aggregate.
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Mechanical activation of recycled concrete as an active ingredient
Opat, Lubomír ; Hela,, Vlastimil (referee) ; Hela, Rudolf (advisor)
This diploma thesis deals with the issue of using fine powder of concrete recyclate. In this thesis, the theoretical expectations of milling are summarized as well as high energy milling. Afterwards professional articles, in which fine powder of concrete recyclate is successfully activated, are described and commented on. In the experimental part, there are 11 recipes of cement mortar and 3 recipes of concrete mixed. The benefit of using fine powder of concrete recyclate as a possible substitute for part of the cement is evaluated.
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Waste building material to subgrade pavement
Masař, Daniel ; Hýzl, Petr (referee) ; Stehlík, Dušan (advisor)
The theoretical part of the diploma thesis searches the production of Construction and demolition waste and their subsequent transformation into the final recyclate and its possible use in roads. Attention is focused on the use of mixed recycled material into subgrade of the pavement and the characteristics of tests that must be performed before its used to the road. The next chapters pai attention to the problematic properties of recyclates, foreign experience with the use of mixed recyclate in Construction and the possibilities of its development. The practical part verifies the suitability of mixed recycled material into subgrade of the pavement using laboratory tests. The tests are performer on individual mixtures of mixed recycled material with cement, blast furnace slag or cement dust in various percentages. The results are then compared and it is evaluated which mixtures show the best properties. Part of the practical part is also the economic evaluation of these mixtures against commonly used materials.
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