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Recycling of asphalt mixtures - variability of RAP - parameters
Tuháček, Martin ; Koudelka, Tomáš (referee) ; Varaus, Michal (advisor)
The bachelor thesis is focused on RAP material (Reclaimed asphalt pavement), particularly on its characteristics and usage while producing hot mix asphalt at plant. The theoretical part thoroughly describes different fields of application of RAP, these include both the hot and cold recycling. The practical part, on the other hand, essentially covers the problem of using the maximum feasible amount of RAP in hot mix asphalt mixtures; mechanical and psychical properties of a binder and aggregate grading curves are evaluated. On the basis of the testing results, the classification of RAP is undertaken. Moreover, the variability of RAP characteristics is assessed and compared within two various plants. Therefore, the maximum amount of RAP added is based on the very deviation of each characteristic. Representative samples were of two sizes – 0/11 and 0/22.
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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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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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Recycling of asphalt mixtures - variability of RAP - parameters
Tuháček, Martin ; Koudelka, Tomáš (referee) ; Varaus, Michal (advisor)
The bachelor thesis is focused on RAP material (Reclaimed asphalt pavement), particularly on its characteristics and usage while producing hot mix asphalt at plant. The theoretical part thoroughly describes different fields of application of RAP, these include both the hot and cold recycling. The practical part, on the other hand, essentially covers the problem of using the maximum feasible amount of RAP in hot mix asphalt mixtures; mechanical and psychical properties of a binder and aggregate grading curves are evaluated. On the basis of the testing results, the classification of RAP is undertaken. Moreover, the variability of RAP characteristics is assessed and compared within two various plants. Therefore, the maximum amount of RAP added is based on the very deviation of each characteristic. Representative samples were of two sizes – 0/11 and 0/22.
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