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Cold Mix Asphalt
Kolesniková, Simona ; Valenta, Jakub (referee) ; Šperka, Pavel (advisor)
The diploma thesis deals with the issue of cold asphalt mixtures, which are commonly used for temporary repairs of potholes on roads, especially in winter months. The theoretical section describes some of the world´s researches on this topic. This section also includes manufacturers of cold asphalt mixtures in the Czech Republic and products available on the Czech market are presented. The practical part describes the properties of the materials used, the results of laboratory testing on test speciments made of cold asphalt mixtures and their comparison with the properties of asphalt concrete for wearing course. The effect of hot mix asphalt temperature during compaction on selected properties i salso analysed.
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Microsurfacing using Reclaimed Asphal Pavement
Kolesniková, Simona ; Valenta, Jakub (referee) ; Šperka, Pavel (advisor)
The road network in the Czech Republic is almost 55,738 km long and its maintenance has been underfunded for a long time. It is therefore necessary to look for ways to extend the overall service life of roads. Microsurfacings belong to the emulsion slurry layers and are made up of a thin layer of a mixture of aggregate and modified asphalt emulsion. It is a pavement maintenance technology used to extend the service life of pavements by 5 to 9 years. As the supply of quality aggregate is gradually decreasing and the price of feedstock for microsurfacing is increasing, the possibility of incorporating R-material into this technology needs to be addressed. This thesis deals with the replacement of natural aggregates in microsurface R-material in the amount of 100 %. In the framework of the work, the formulation of the microsurface with R-material was optimized.
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Microsurfacing using Reclaimed Asphal Pavement
Kolesniková, Simona ; Valenta, Jakub (referee) ; Šperka, Pavel (advisor)
The road network in the Czech Republic is almost 55,738 km long and its maintenance has been underfunded for a long time. It is therefore necessary to look for ways to extend the overall service life of roads. Microsurfacings belong to the emulsion slurry layers and are made up of a thin layer of a mixture of aggregate and modified asphalt emulsion. It is a pavement maintenance technology used to extend the service life of pavements by 5 to 9 years. As the supply of quality aggregate is gradually decreasing and the price of feedstock for microsurfacing is increasing, the possibility of incorporating R-material into this technology needs to be addressed. This thesis deals with the replacement of natural aggregates in microsurface R-material in the amount of 100 %. In the framework of the work, the formulation of the microsurface with R-material was optimized.
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