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Machine for the recovery of road signs on roads
Malchárek, Martin ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
Object of this bachelor’s thesis is machine for the removing road signs on roads. Bachelor’s thesis involves background research with selection of similar machines on the market. Next part is focused on self design of the machine. Requirement of the design was simplicity of producing and high comfort for operator. This design is supported by calculations of basic parameters, V-belt transmission and strength check of shaft with tools.
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Design of asphalt concrete mixture and determinantion of the resistance against permanent deformation
Němec, Jan ; Matoušek, David (referee) ; Varaus, Michal (advisor)
This bachelor thesis deals with the problem regarding asphalt concrete mixtures, concretely ACO 11+. This type of mixture has low resistance to permanent deformation (rutting) while high temperatures are present. The binder and aggregate tests regarding physical and mechanical properties were carried out. Subsequently the new mixture was designed on the basis of stricter requirement for grading envelope and air void content. The design mixture was tested for resistance to permanent deformation. From the obtained results the change in the national annex of the standard ČSN EN 13108-1 is considered in terms of change in testing temperature for some kinds of binders. The same tests were conducted in others asphalt laboratories in the Czech Republic to ensure the maximum comparability.
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