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Coarse graded asphalt mixtures
Mucha, Ondřej ; Dašek, Ondřej (referee) ; Hýzl, Petr (advisor)
The bachelor’s thesis is focused on asphalt mixtures that contain coarser aggregates than currently allowed by technical regulations in the Czech Republic. The introductory part of the work describes the composition of asphalt mixtures, their division and use. Further deals with foreign experience with these types of asphalt mixtures and their use in the surrounding European countries and in the United States of America. The aim of this work is to obtain a theoretical overview of knowledge about coarse graded asphalt mixtures from foreign sources and research.
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The usage of the quarried aggregates to base layers of pavements
Borkesz, Michael ; Mondschein,, Petr (referee) ; Stehlík, Dušan (advisor)
The work deals with the possibilities of using fine crushed and quarried aggregate to base layers of roads. The introduction of the theoretical part explains the origin of this type of aggregate. There are also described the tests, which were used to verify the attributes and features of these mixtures and their use in cemented base layers of roads. In a brief way, the work also deals with foreign research and the possibilities that arise from it. In the practical part is then described the process of mixture preparing and laboratory tests carried out on them, the production of test specimens, load tests of these specimens and interpretation of the results. The conclusion summarizes the findings. Here are also discussed ways to apply them in practice.
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The use of the waste aggregates for bound mixtures of pavements
Chloupek, Adam ; Zajíček, Jan (referee) ; Stehlík, Dušan (advisor)
The works deals with the possibilities of using non-standard fraction of fine crushed aggregate in route base layers. Goal of my thesis is research of using material from specific location. Theoretical part summarizes basic knowledge regarding bound mixtures and their normative requirements. Practical part of my thesis describes my various mixture design and following testing and determination of design properties by official and experimental tests. The conclusion summarizes the researched outputs and findings, which confirm the future possibilities of using this material in base layers.
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Cold asphalt mixtures with R-material
Ševc, Jan ; Mondschein,, Petr (referee) ; Stehlík, Dušan (advisor)
The thesis is focused on the use of R-material into cold asphalt mixtures. It deals with cold recycling and with input materials for this technology. It verifies properties of R-material and residues of bituminous binder. It also verifies properties of designed cold asphalt mixtures by the probative controls (indirect tensile strenght and water resistance). Furthermore is focused on the experimental measurement of selected mixtures to ensure more characteristics. The amount of homogenity of R-material, quantity and quality of residues bituminous binder is essential for positive results.
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The use of asphalt recycled materials in the base and subbase layers of pavements
Tanečková, Pavlína ; Hýzl, Petr (referee) ; Stehlík, Dušan (advisor)
This thesis consists of theoretical and practical parts. The theoretical part gathers available information on the current state of construction and demolition waste management. This part discusses foreign experiences with SDW management, provides basic information on the introduction of circular economy. Equally important is the environmental impact, which is discussed from the perspective of Decree No 283/2023 Coll. It also provides basic information on construction and demolition waste and describes the recycling process. It also discusses the most common types of recyclates and their use in roads. The practical part of this thesis verifies the possibilities of using asphalt recyclates and their mixtures cemented with asphalt emulsion or hydraulic binder. The main objective was to verify the possibilities of using these recyclates in cemented subbase layers for urban roads. These possibilities were verified and then compared by means of laboratory tests. Finally, a comparison of cemented mixtures of asphalt recyclates with specific binder dosage and low temperature heating of the mixture for optimum compaction to the desired strength values using recyclates is made.
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Stabilization of the base layers of roads by using secondary raw materials
Buřičová, Karolína ; Kulísek, Karel (referee) ; Drochytka, Rostislav (advisor)
The bachelor's thesis deals with the up-to-date subject of secondary raw material usage. The aim of this thesis is to suggest a potential way of these materials’ usage by stabilization of base courses of road or railway constructions. Parameters of individual primary and secondary commodities are evaluated and the acquired knowledge in the field of stabilization is presented. An optimal technology for stabilization is suggested and applicability of used materials and their subsequently prepared mixtures is experimentally verified in the experimental work of this thesis.
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Coarse graded asphalt mixtures
Mucha, Ondřej ; Dašek, Ondřej (referee) ; Hýzl, Petr (advisor)
The bachelor’s thesis is focused on asphalt mixtures that contain coarser aggregates than currently allowed by technical regulations in the Czech Republic. The introductory part of the work describes the composition of asphalt mixtures, their division and use. Further deals with foreign experience with these types of asphalt mixtures and their use in the surrounding European countries and in the United States of America. The aim of this work is to obtain a theoretical overview of knowledge about coarse graded asphalt mixtures from foreign sources and research.
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Stabilization of the base layers of roads by using secondary raw materials
Buřičová, Karolína ; Kulísek, Karel (referee) ; Drochytka, Rostislav (advisor)
The bachelor's thesis deals with the up-to-date subject of secondary raw material usage. The aim of this thesis is to suggest a potential way of these materials’ usage by stabilization of base courses of road or railway constructions. Parameters of individual primary and secondary commodities are evaluated and the acquired knowledge in the field of stabilization is presented. An optimal technology for stabilization is suggested and applicability of used materials and their subsequently prepared mixtures is experimentally verified in the experimental work of this thesis.
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The use of the waste aggregates for bound mixtures of pavements
Chloupek, Adam ; Zajíček, Jan (referee) ; Stehlík, Dušan (advisor)
The works deals with the possibilities of using non-standard fraction of fine crushed aggregate in route base layers. Goal of my thesis is research of using material from specific location. Theoretical part summarizes basic knowledge regarding bound mixtures and their normative requirements. Practical part of my thesis describes my various mixture design and following testing and determination of design properties by official and experimental tests. The conclusion summarizes the researched outputs and findings, which confirm the future possibilities of using this material in base layers.
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