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Use of R-material in asphalt mixtures with highly modified binder (HiMA)
Christ, Roman ; Dašek, Ondřej (referee) ; Hýzl, Petr (advisor)
The subject of this diploma thesis is paid attention to the influence of different dosing of R-material containing unmodified asphalt on the properties of asphalt concrete for abrasive layers (AC011 +) bonded with polymer highly modified asphalt (binder type HiMA). The properties of asphalt mixtures will be evaluated by means of the stiffness modulus test and the test of low-temperature properties by a uniaxial tensile test.
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Maintenance and reconstruction of pavements issues
Masaříková, Petra ; Stehlík,, Dušan (referee) ; Hýzl, Petr (advisor)
The Bachelor thesis deals with failures of roadways on the basis of the TP 82 Catalog failures of flexible pavements and their subsequent options of reparations. It includes the description of technology maintenance and reparations of roads on the basis of the TP 87 Design of maintenance and reparations of flexible roads and new options of technology of reparations and maintenance. Further in this thesis there is a comparison of technologies of reparations and maintenance according to several criteria.
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Mastic Asphalts
Škorík, Michal ; Dašek, Ondřej (referee) ; Hýzl, Petr (advisor)
This bachelor‘s thesis aims to closely showcase the knowledge of mastic asphalt. The theoretical part describes history, consistency of the mixture, production process and technique of application including the newest trends. The practical part includes the assessment of bulk density altogether with the functional tests of stiffness modulus and the resistance to low temperatures for the sample of mastic asphalt with polymer modified asphalt.
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Adhesion of bituminous binders to aggregate
Vlk, Petr ; Hýzl, Petr (referee) ; Varaus, Michal (advisor)
In 2005 the revised European standard 12697-11:2005 [1] was introduced offering a choice of three different methods. The static method described in part B has some similarities with the replaced Swiss standard for the determination of the affinity between bitumen and aggregates [2] and Czech standard for adhesions of asfalt binder to aggregates ČSN 73 6161 [3]. The result of this study is to compare the static method described in the [3] and a draft changes by Swiss research project [4] with the current revision of the European Standard 12697-11: 2005.
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Slurry surfacing
Koudelka, Tomáš ; Komínek, Zdeněk (referee) ; Hýzl, Petr (advisor)
This thesis is focused on microsurfacing technology. The theoretical part describes modern trends especially in the field of coloured surfaces and special system Flexiplast®. The practical part presents the results of conducted tests, particularly tests of breaking time, cohesion, determination of wearing and determination of friction after polishing. The key advantage is that it specifies which aggregates, which were taken from quarries through the Czech Republic, are convenient for this specialized technology. It was verified that RAP material suits use in microsurfacing. Furthermore, colour mixtures are viable for practical application which was confirmed by tests in the laboratory and trial lying as well. Special use of technology in the system Etanpalst and pictures which show field work are presented.
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New trends in the construction of flexible pavements
Palátová, Marcela ; Špaček, Petr (referee) ; Hýzl, Petr (advisor)
The aim of this thesis is to introduce innovations and trends in the construction of flexible pavement layers, which are used abroad. The paper is focused on some surfaces, which help to reduce noise pollution from traffic, and binders, which are based on natural ingredients called bioasphalt. It provides an information summary of increasing share of reclaimed asphalt in bituminous mixtures and introduces possible procedures that could lead to an increase in pavement life.
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Stone mastic asphalts with recycled materials - bituminous binders properties
Dzurková, Veronika ; Coufalíková, Iva (referee) ; Hýzl, Petr (advisor)
The bachelor thesis is focused on the issue of adding R-material to stone mastic asphalt mixtures (SMA). The material was obtained from a plant that put the mixture in the test section on the road II/227. The theoretical part describes the problems of recycling of asphalt roads, bituminal binder theory and problems associated with the addition of R-material to hot asphalt mixtures. Bituminal binders from mixtures with different percentages of R-material were extracted in the practical part. Empirical and functional tests were performed on these binders. The aim of the thesis is to determine the influence of the presence of R-material on SMA asphalt mixture in terms of properties of asphalt binder.
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Low - noise pavements
Bárta, Jan ; Frýbort, David (referee) ; Hýzl, Petr (advisor)
Master´s thesis describestheproblemsoflow-noiseroadsurfaces. Thetheoretical part describestrafficnoise, sourcesofnoise, thelow-noiseroadsurfaces and thepractical part - describestwoproposalsoflow-noise stone masticasphalt SMA 8 LA and Düsseldorflow-noise stone asphalt LOA 5.
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Cold asphalt mixtures
Spáčil, Petr ; Hýzl, Petr (referee) ; Dašek, Ondřej (advisor)
The bachelor thesis is divided into theoretical and practical part. The theoretical part consists of explanation of the problem. The thesis includes definitions as Bitumen, Asphalt Mixture, Asphalt Binder, Cut-back Bitumen and Viscosity. The practical part is focused mainly on the description of the test methods used on Asphalt Binders and Mixtures which were intended for repairs. It describes differences between used Asphalt Binders and explains and describes other used materials. The practical part compares the mixtures of different Cut-back Bitumen. It describes the production process and project of Cut-back bitumen mixture, the production process of individual test solids and compares the differences with hot made asphalt mixture. It also describes the analysis of volumetric, mechanical-physical and funcional tests in purpose of evaluating the differences between standard Cut-back Bitumen and new biofluxed asphalt binder.
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Usage of polymer modified bitumens and rejuvenators in asphalt mixtures
Maláník, Stanislav ; Hýzl, Petr (referee) ; Dašek, Ondřej (advisor)
Diploma thesis deals with the influence of various dosing of Reclaimed asphalt pavement (RAP) using modified bitumen on the properties of asphalt concrete (ACO 11+) of cemented by polymer modified bitumen, while a rejuvenating agents are added into asphalt mixtures. The theoretical part of the thesis summarizes the basic knowledge of pavement recycling, polymer modified bitumens and their reuse in asphalt mixtures. The practical part deals with laboratory tests of ACO 11+ mixtures with the RAP proportion of 0 % to 50 %. The asphalt mixtures compared are evaluated by means of the Thermal Stress Restrained Specimen Test (TSRST) and Stiffness test. The results obtained within the diploma thesis can approximate the issue of recycling of asphalt mixtures with polymer modified bitumens.
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