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Use of R-material in asphalt mixtures with PMB type binder
Navrátilová, Pavlína ; Dašek, Ondřej (referee) ; Hýzl, Petr (advisor)
The diploma thesis is focused on the use of R-material in asphalt mixtures with a PMB type binder. The work is divided into a theoretical part and a practical part. The theoretical part describes the acquisition of R-material by road milling, the use of R-material, the binder used in the practical part of the work and the types of recycling. The practical part deals with the design of four types of asphalt mixtures with different content of R-material in the asphalt mixture. It also deals with the description of functional tests of asphalt mixtures and the results of these tests.
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Design of asphalt mixtures with the use of higher amount of RAP
Pavličík, Petr ; Matoušek, David (referee) ; Varaus, Michal (advisor)
In the introduction of the Master’s thesis describes for obtaining and processing of reclaimed asphlalt. Major point of the thesis is design of asphalt mixtures with use of higher amount of RAP for asphalt binder course. Asphalt mixtures were designed with contents of 0%, 30%, 50% and 70% of RAP. On each asphalt mixtures were compared parameters set out by functional tests – resistence to permanent deformation and resistence to water.
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Using Reclaimed Asphalt Pavement in High Modulus Asphalt Mixture for Binder Asphalt Courses
Klimek, Matěj ; Hýzl, Petr (referee) ; Šperka, Pavel (advisor)
The bachelor thesis deals with design of high modulus asphalt mixture with using 30 % reclaimed asphalt pavement in combination with polymer modified bitumen. The goal of this thesis is to verify if the mixture reaches the requirements of technical regulations TP 151 [1]. Selected tests were performer in accordance with the European standards ČSN EN 12697 Bituminous mixtures – Test methods for hot asphalt mixtures. Theoretical part of my thesis is focused on possibilities of addition higher amounts of reclaimed asphalt pavement into asphalt mixtures.
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Recycled material in Stone mastic asphalts
Motl, Vojtěch ; Coufalíková, Iva (referee) ; Hýzl, Petr (advisor)
The Bachelor’s thesis deals with an issue of adding a Reclaimed asphalt pavement (RAP) into surface courses, especially SMA 11S. The thesis is divided into two parts – theoretical and practical. The theoretical part defines the term RAP and explains how to gain RAP and how to use it for a hot recycling at asphalt plants. The practical part deals with the design of asphalt mixture containing 30 % of RAP, the preparation of test specimens, the description of executed tests and the results of those tests. The results are compared with SMA 11S without RAP.
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Influence of usage of recycled material on asphalt mixtures functional properties
Šperka, Pavel ; Hegr, Zdeněk (referee) ; Hýzl, Petr (advisor)
Diploma thesis deals with the topic of using recycled material in the production of asphalt mixtures. In the theoretical part the methods of recycling flexible pavement are described and as well as ways in which recycled material is added to asphalt mixtures produced by the stationary hot mix plant. The thesis also deals with the current state of recycled material use in the Czech Republic and the reasons for its possible greater use. The practical part of the thesis studies the effect of using the amount of 20% recycled material to asphalt mixtures of asphalt concrete for wearing course ACO11+, on selected functional properties of these mixtures. It is also investigates the influence of bitumen binder contained in the recycled material, on the final properties in manufactured asphalt mixtures. 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 this thesis there are some results of findings about adding recycled material into asphalt mixtures.
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Use of RAP in coarse-grained asphalt mixtures
Teslík, Jozef ; Dašek, Ondřej (referee) ; Hýzl, Petr (advisor)
The diploma thesis examines the possibilities of using R-material in coarse-grained asphalt mixtures for ACP32 base layers. The theoretical part deals with the availability of aggregates in the Czech Republic and also solves the issue of producing asphalt mixtures with a higher content of R-material. The theoretical part also compares the use of R-materials in the Czech Republic with other countries. The practical part deals with the design, production and testing of selected mixtures. To determine the properties of the mixtures, the rolling wheel tests, TSRST and the determination of the modulus of elasticity were selected.
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Usage of reclaimed asphalt pavement in stone mastic asphalt
Coufalíková, Iva ; Katarína, Bačová (referee) ; Fišer,, Jiří (referee) ; Hýzl, Petr (advisor)
The dissertation deals with the possibilities of adding recycled asphalt pavement (RAP) to the stone mastic asphalt (SMA), which is increasingly being promoted due to its good resistance to permanent deformations and high traffic load. Thanks to the use of high-quality input materials in production, this is a valuable material source. The theoretical part describes composition of SMA mixture and problems of pavement recycling. The practical part deals with SMA 11S laboratory designs with RAP ratio of 0 to 50%. Based on these suggestions, a trial section with 17 variants was placed, which varied with the content and quality of the RAP and the used additives. All variants have been subjected to functional testing not only on mixtures but also on recovered binders. The results obtained during the dissertation were used to build a certified methodology named "Methodology of application RAP to Stone Mastic Asphalt." In conclusion, the results of the dissertation are summarized.
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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
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Recycling of bituminous binders by using recycling agents
Koudelka, Tomáš ; Komačka,, Jozef (referee) ; Dašek, Ondřej (referee) ; Varaus, Michal (advisor)
Increasing the content of Reclaimed Asphalt in hot asphalt mixtures is one of the current issues in road construction, to which society's attention is paid. The higher content of Reclaimed Asphalt brings higher technological demands not only for the production of asphalt mixture plants, but also for the handling of materials in general. The benefit for higher demands on asphalt mixture production is the subsequent reduction of the environmental burden associated with the construction of road infrastructure caused by the mining industry and use of natural resources. The dissertation is focused on studying recycling agents which are used in the production of asphalt mixtures containing Reclaimed Asphalt. Emphasis is put on comparing the properties of recycled binders with paving bitumen and binders from Reclaimed Asphalts whereas the effect of repeated recycling is taken into account. A large part of the thesis is devoted to the design of the optimal dosage of recycling agents. Certain findings were used to draw a methodology describing the design of dosing of these agents. At the same time, the properties and behaviour of the recycling agents themselves were evaluated.
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Asphalt recycled material to cold asphalt mixtures
Kotas, Vojtěch ; Varaus, Michal (referee) ; Stehlík, Dušan (advisor)
The thesis is focused on the use of R-material into cold asphalt mixtures, which is modern method using recyclate into subgrade of roads. Concretely, it deals with basic properties of R-material, such as grain size and compaction. It practically verifies and compares properties of cold asphalt mixtures with cement, asphalt emulsion or with combination of this two binders. As reference testing method was chosen test of tensile splitting strength.
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