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The evaluation of properties of fine aggregate for asphalt mixtures
Kadlček, Jakub ; Sychra, Martin (referee) ; Dašek, Ondřej (advisor)
The diploma thesis is focused on evaluation of properties of fine aggregate by means of laboratory tests. Fine aggregate evaluation was performed using sieving test, laser diffraction, delta ring and ball test, bitumen number test, uncompacted void content of fine aggregate according to AASHTO T 304, voids of dry compacted filler (Rigden) test and particle density of filler. Laboratory research has led to the discovery of some properties of fine aggregate and their dependencies.
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Mobile belt conveyor
Čech, David ; Pokorný, Přemysl (referee) ; Jonák, Martin (advisor)
The aim of this work is to design mobile belt conveyor to transport fine aggregate and small rubble with traffic performance 60 000 kg/h, 3,5 meters height difference. This work also contains a description of the basic parts of the conveyor, functional analysis according to ISO 5048, the design of the main dimensions of the conveyor, drive and tensioning device. The work is accompanied by drawings.
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The usage of the fine aggregates to cement bound mixtures
Švarcová, Monika ; Hýzl, Petr (referee) ; Stehlík, Dušan (advisor)
This bachelor thesis occupies with use of fine aggregates in hydraulically bound mixtures for road pavement bases and sub-bases. The theoretical part describes properties of bound mixtures, aggregates and bound materials. This part also deals with laboratory methods used for bound mixtures and foreign research. In the practical part sand and gravel, crushed stone and recycled fine aggregates are used in bound mixtures with cement or cement and fluidized bed combustion ash. The unconfined compressive strength and frost and water resistance of bound mixtures are tested. The results of laboratory tests are evaluated and compared. The used mixtures are mostly found as suitable for pavement sub-bases.
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Study of effect of the introduced parameters to aerate of aerated concrete
Urbánek, Libor ; Voves, Jiří (referee) ; Hubáček, Adam (advisor)
Bachelor thesis is focused on aerated concrete, their parameters of composition and properties. Further, the thesis focuses on the study of the effect of the introduced aeration on fresh concrete on its properties in both fresh and hardened state. Emphasis is placed on the assessment of the aeration rate in fresh concrete, as compared to the various parameters of hardened concrete, especially the content of hardened concrete and the durability of concrete. The study is complemented by a description of air pore distribution tests in fresh and hardened concrete, a description of individual aeration additives and a study of the influence of aeration additives on the durability of concrete.
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The evaluation of properties of fine aggregate for asphalt mixtures
Kadlček, Jakub ; Sychra, Martin (referee) ; Dašek, Ondřej (advisor)
The diploma thesis is focused on evaluation of properties of fine aggregate by means of laboratory tests. Fine aggregate evaluation was performed using sieving test, laser diffraction, delta ring and ball test, bitumen number test, uncompacted void content of fine aggregate according to AASHTO T 304, voids of dry compacted filler (Rigden) test and particle density of filler. Laboratory research has led to the discovery of some properties of fine aggregate and their dependencies.
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|
|
The usage of the fine aggregates to cement bound mixtures
Švarcová, Monika ; Hýzl, Petr (referee) ; Stehlík, Dušan (advisor)
This bachelor thesis occupies with use of fine aggregates in hydraulically bound mixtures for road pavement bases and sub-bases. The theoretical part describes properties of bound mixtures, aggregates and bound materials. This part also deals with laboratory methods used for bound mixtures and foreign research. In the practical part sand and gravel, crushed stone and recycled fine aggregates are used in bound mixtures with cement or cement and fluidized bed combustion ash. The unconfined compressive strength and frost and water resistance of bound mixtures are tested. The results of laboratory tests are evaluated and compared. The used mixtures are mostly found as suitable for pavement sub-bases.
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|
|
Study of effect of the introduced parameters to aerate of aerated concrete
Urbánek, Libor ; Voves, Jiří (referee) ; Hubáček, Adam (advisor)
Bachelor thesis is focused on aerated concrete, their parameters of composition and properties. Further, the thesis focuses on the study of the effect of the introduced aeration on fresh concrete on its properties in both fresh and hardened state. Emphasis is placed on the assessment of the aeration rate in fresh concrete, as compared to the various parameters of hardened concrete, especially the content of hardened concrete and the durability of concrete. The study is complemented by a description of air pore distribution tests in fresh and hardened concrete, a description of individual aeration additives and a study of the influence of aeration additives on the durability of concrete.
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Mobile belt conveyor
Čech, David ; Pokorný, Přemysl (referee) ; Jonák, Martin (advisor)
The aim of this work is to design mobile belt conveyor to transport fine aggregate and small rubble with traffic performance 60 000 kg/h, 3,5 meters height difference. This work also contains a description of the basic parts of the conveyor, functional analysis according to ISO 5048, the design of the main dimensions of the conveyor, drive and tensioning device. The work is accompanied by drawings.
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