|
|
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.
|
|
|
Usage of kevlar fibres in asphalt mixtures
Mazáč, Jan ; Hegr, Zdeněk (referee) ; Hýzl, Petr (advisor)
Diploma thesis deals with topic of using aramid (Kevlar) fibres in road engineering in asphalt mixtures. Theoretical part of thesis is describing characteristics of aramid fibres and their technical usage. Thesis deals with research and application of aramid fibres abroad and also in Czech Republic. Practical part deals with influence of aramid fibres, namely FORTA FI fibres in mixture with modified binder for wearing course. An integral part of this thesis is a description of all methods that were used during the processing of the practical part. In the end of the thesis there are outcomes of tests and theoretical research.
|
|
|
Open-graded asphalt concrete filled with a special cement grout
Hruška, Lukáš ; Mondschein,, Petr (referee) ; Hýzl, Petr (advisor)
Aim of this thesis is the usage of the open-graded asphalt concrete filled with a special cement grout in the road structures. Thesis defines the main concrete properties and explains related legislation and norms that apply. In addition, laboratory design of asfalt mixtures and a tree kind mortal filler and possibilities of mortal filler pigmentation are dealth with. Finally, thesis evaluates the results from various laboratory tests that were performed on the specimens made from final mixtures.
|
|
| |
|
|
Asphalt recyclated material for base and subbase layers of pavements
Winterová, Karin ; Hýzl, Petr (referee) ; Stehlík, Dušan (advisor)
This bachelor thesis reviews the use of asphalt recyclated material and its application in the base and subbase layers of pavements. In addition to domestic knowledge, a foreign experience with the use of tested material and also covers currently used technologies for the processing of asphalt recyclates into the constructional layers of roads.is presented. Possibile application of asphalt recyclates in the unblemished and coated subbase layer of the road are verified in the practical part
|
|
|
Skid resistance of pavements
Stránský, Jakub ; Stehlík, Dušan (referee) ; Hýzl, Petr (advisor)
Bachelor’s thesis main purpose is to process the knowledge about skid resistance, its mesurement, the equipment used and its failures and suitable repairs of solid and nonsolid roadways. The practical part evaluates skid resistance properities of selected highway sections with solid and nonsolid surface on the basis of measured values of PTV.
|
|
|
Low volume roads
Kučera, Vlastimil ; Stehlík, Dušan (referee) ; Hýzl, Petr (advisor)
Thesis deals with an issue of low-volume roads and brings basic informations about their design. The most of the low-volume roads in the world are unpaved roads, while in the Czech republic there are not enought of experience with their construction, therefore a foreign literature was used as an almost exclusive source. The advantages of the roads with unpaved materials are, they are environment-friendly and money saving, therefore when correct procedure is used, good quality material is chosen and proper maintenance is used, they are advisable alternative to normally used asphalt surfaces. With increasing volume of vehicles their advantages decreases. They are suitable for a road surfaces in protected landscape areas, because they represents minor impact on the landscape.
|
|
|
Usage of foam bitumens in asphalt mixtures
Venclíková, Michaela ; Komenda, Radek (referee) ; Hýzl, Petr (advisor)
In this diploma thesis there are described the issues use of foamed bitumen as binder in asphalt mixtures. The thesis is divided into two parts, theoretical and practical. The aim of theoretical part was to elaborate an overview of technologies, which allow to reduce the temperature during the production and laying of asphalt mixtures. The aim of the practical part was to compare the selected empirical and functional parameters of two types of asphalt mixtures produced in two variants, with hot bitumen and foamed bitumen. Attention was paid mainly to stiffness and low temperature parameters.
|
|
|
Crude oil materials on pavement surface
Slavíček, Michal ; Stehlík, Dušan (referee) ; Hýzl, Petr (advisor)
The bachelor thesis addresses an issue of an influence of crude oil materials on pavement surface. An analysis of valid legislation for transportation of dangerous goods in the European Union and in the Czech Republic is provided. The thesis is also concerned with transportation of dangerous goods, especially class 3: Flammable liquids in tanks, specifics of the tanks, requirements for their use, accidents and problem solving connected to their disposal with respect to the environment. The practical part deals with a test of resistance of Bituminous Mixtures to fuel , which is more specified in norm ČSN EN 12697-43 "Bituminous mixtures - Test methods for hot mix asphalt - Part 43: Resistance to fuel. The thesis is concluded with the description of results of the influence of fuel effect on specimens made of specific Bituminous Mixtures.
|
|
|
Microsurfacing
Koudelka, Tomáš ; Stehlík,, Dušan (referee) ; Hýzl, Petr (advisor)
This thesis is focused on slurry surfacing technology, particularly on microsurfacing. The theoretical part describes various issues of this technology: composition, manufacturing process, ecology, storage, making and design of the mixture. The practical part presents results of cohesion tests, wearing tests, consolidation and breaking time that has been performed on the mixture for microsurfacing. During the tests, the temperature of both bitumen emulsion and aggregate has been changed several times.
|
guest ::
