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Bituminous mixture desing with the use of 30 % reclaimed asphalt and its functional evaluation
Horáček, Daniel ; Šperka, Pavel (referee) ; Kudrna, Jan (advisor)
The aim of my bachelor thesis is to design asphalt mixture with a higher lifetime (mixture of type VMT 16) and its subsequent assessment by selected functional tests. VMT blends are used for load and underlayer layers of roads with higher transport loads. The main idea of this bachelor thesis is the design of an asphalt mixture consisting of natural aggregates, recycled asphalt mixtures and crumb rubber modified bitumen, yet retaining good road-holding properties. The use of recyclable bituminous mixtures will allow the recycling of bent or milled asphalt layers, which is currently high in surplus, and will allow the overall cost of building new high-quality asphalt layers to be reduced. The bachelor thesis describes the empirical and functional tests performed, according to which the resulting asphalt mixture was designed, and the results compared with the TP151 Asphalt mixture with high modulus of stiffness (VMT).
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Evaluation of properties of PMB containing binder from RAP
Měšťanová, Petra ; Hýzl, Petr (referee) ; Dašek, Ondřej (advisor)
Subject of this diploma thesis is to describe the effect of adding different amount of aged binder recovered from RAP on the change of properties of polymer modified bitumen. The RAP containing unmodified bitumen and the RAP where we can expect bitumen modification are used to recover binder. The binder obtained from RAP is dosed into the virgin binder in amount of 15 %, 30 % and 50 %. The methods of recycling of flexible pavements, extraction and regeneration of asphalt binders, rejuvenating of their properties and methods of empirical and functional laboratory tests are described in the theoretical part. The practical part deals with evaluating and comparison of the results mixed binders properties.
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ASFALT IS LIQUID
Prokop, Tomáš ; Novotný, Jaromír (referee) ; Ambrůz, Jan (advisor)
This installation is thematicly associated with my long term sold problems which is connected with loneliness, parting, leaving. I put the stress on the act of physical nearness which looks like a touch or contact but in fact it isn't so. Just this nearness generates inside tension. As you can see the installation is based on simple principles resulting from the abilities of a material. It is about two blocks of asphalt which spontanously produce a pressure on the glass. In this case the glass has the importance of imaginary dividing level which prevents a physical contact. A glass obstacle makes the fusion of the two asphalt blocks impossible. Despite a volatile character, asphalt will run down. The installation results from a human standard because the blocks of asphalt have a human proportion. I give the blocks a statute of beings who long for a touch but without success. The fusion is impossible.
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Permanent deformation on asphalt mixtures
Bambulová, Lucie ; Coufalík, Pavel (referee) ; Hýzl, Petr (advisor)
The bachelor thesis deals with a description of the laboratory properties of aged bituminous binders in relation to permanent deformation. The theoretical part deals with the empirical tests: needle penetration and softening point. There is also explained the procedure and the principle of the MSCR test. In the practical part are evaluated the properties of fifteen tested bituminous binders and based on the results are made two plates which are tested to permanent deformation.
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Influence of temperature on the penetration of asphalt binders
Koblížek, Ondřej ; Koudelka,, Tomáš (referee) ; Dašek, Ondřej (advisor)
The bachelor thesis deals with an influence of temperature on the needle penetration results of tested bitumens in various test temperatures. The theoretical part describes the issue of laboratory tests in the world. This work also describes the american research program called SHRP (American Highway Research Program). The following part explains used test methods in detail (determination of needle penetration, determination of the softening point – ring and ball method). The practical part briefly introduces used materials and determines the results of laboratory tests and their comparison.
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Double Layer Porous Asphalt with Aspahlt-rubber Binder
Klimeš, Petr ; Hegr, Zdeněk (referee) ; Kudrna, Jan (advisor)
The possibilities of double layer porous asphalt usage and rules for design of porous asphalt mixtures are introduced in this work. The porous asphalt mixtures PA 8, PA 11 and PA 16 are designed with different content of asphalt-rubber according to Marshall Test method. The water sensitivity, drainability, particle loss of these PA are determined. The permanent deformation and drainability of double layer PA 8 and PA 11 were also determined. The possibility of usage of this double layer porous asphalt with expected decreasing of traffic noise was proved.
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Recycling of asphalt mixtures with higher amount of RAP
Klimek, Matěj ; Koudelka, Tomáš (referee) ; Varaus, Michal (advisor)
The theoretical part of the diploma thesis recapitulates the existing literature in the field of recycling asphalt mixtures with a higher content of RAP (Reclaimed asphalt pavement). The practical part of the diploma thesis examines changes in the properties of asphalt mixtures with a higher content of RAP, due to changes in mixing time. Five mixtures have been proposed for this research. It is an asphalt mixture intended for the road abrasive layer (ACO 11+). Reference mixture "A" without RAP, with a standard mixing time of 25 seconds. Mixture "B" with 40% RAP, without rejuvenator, with an extended mixing time of 40 seconds. Mixture "C" with 40% RAP, with rejuvenator and standard mixing time. Mixture "D" with 40% RAP with rejuvenator and extended mixing time of 40 seconds. Mixture "E" with 40% RAP, with rejuvenator and extended mixing time of 55 seconds.
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Influence of polymer modified bitumens storage on their properties
Měšťanová, Petra ; Fišer,, Jiří (referee) ; Dašek, Ondřej (advisor)
Subject of this bachelor’s thesis is to describe the influence of long-term storage of polymer modified bitumen at temperature of 180 °C on their properties. The principle of binder modification and test procedure of needle penetration, softening point, elastic recovery and dynamic viscosity in DSR will be explained in the theoretical part. The properties changes of five tested modified binders during storage will be evaluated and compared in the practical part.
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Influence of boundary conditions on the aging index of asphalt binders
Štohlová, Barbora ; Koudelka, Tomáš (referee) ; Dašek, Ondřej (advisor)
The bachelor thesis deals with an influence of several boundary conditions on the aging index of various modified asphalt binders. In the thesis there is rheology and modification of asphalt binders, types of ageing (short-term, long-term) and used tests (needle penetration, softening point, complex shear modulus, phase angle, aging tests) described. In the second part there is a brief description of used materials and comparison of the test results on these materials.
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