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Climate change is a global problem with serious social, economic and distributional effects on the environment. It is one of the main current challenges for humanity. Changing climate conditions in the long term, as well as short-term fluctuations and non-standard variation of temperature characteristics, have a significant impact on the behavior of pavement structure. Since the end of the 19th century, average temperatures have risen to 0.6 -C. The article describes the results of measurements and evaluations of ...

In addition to the traffic load, the temperature also has a significant effect on the course of stresses in cement concrete slabs. It is the load of temperature changes that is often underestimated. Recently, there have been significant changes in climatic conditions and increasingly frequent extremes (especially high temperatures in the summer months and extreme fluctuations during the day), which affect the behavior of road structures and the basic characteristics affecting the stress of cement concrete pavement...

Cement concrete pavements are very specific group of the road construction due to the different traffic loads and vary time difficulties in the course of maintenance and repairs. For the design of the planed repairs the increased requirements are imposed especially in the terms of repair life time cycle. The economical evaluation shall consider not only the value of the repair itself but also the cost connected with the diversion of air traffic during the execution of the maintenance and repairs. Therefore, is hig...

In 2019, a new, modern Strategy of the Environmental Policy of the Slovak Republic until 2030 (the Envirostrategy 2030) was approved. The previous one has been in force since 1993, so it was only a matter of time before implementing a strategy to address current environmental challenges and problems. Along with industry and energy, transport is one of the main producers of greenhouse gas emissions. According to the statistics of the Ministry of the Environment of the Slovak Republic, the amount of greenhouse gas e...

Environmental risk factors for environmental problems with physical, chemical and biological factors that cause or may cause health disorders as well as environmental degradation. One possible factor is noise. The World Health Organization (WHO) estimates that a target of 40% of the EU population is exposed to traffic noise of more than 55 dB and that more than 30% is exposed to levels of more than 55 dB at night. The issue of protection of the health of the population against the adverse effects of noise and vibr...

Climate change is a global problem with serious social, economic and distributional effects on the environment. It is one of the main current challenges for humanity. Changing climate conditions in the long term, as well as short-term fluctuations and non-standard variation of temperature characteristics, have a significant impact on the behavior of pavement structure. Since the end of the 19th century, average temperatures have risen to 0.6 °C. The article describes the results of measurements and evaluations of ...

Recycling of asphalt is an important technological process applied worldwide. The strategy is to use as much milled, ripped or broke asphalt material into the new mixture. With the correct technological design, the maximum appreciation of this material is achieved. Due to the dominant use of asphalt mixtures in pavements, it is important to address the possibilities of their recycling. At present, a sufficient amount of reclaimed asphalt with good potential for further use is available in Slovakia. The problem is ...

Transport is part of our lives. We live in an accelerated time and this also affects our transport demands. We need to move from one place to another faster. People often use own cars to move faster. The individual automobile transport has advantages. I tis flexible, fast and comfortable. But the automobile transport disadvantages. Many cars cause traffic jams, have a negative impact on the environment and the public roads are load. Individual car transport competes with public transport. In our country the public...

The upward trend in Earth's surface temperature observed is the most visible manifestation of ongoing climate change, especially since the second half of the eighty?s and especially in Slovakia since the early 1990s of 20th century. While the global average temperature of the ground-level atmosphere has risen by almost 1 ° C since the early 20th century, central Europe, including Slovakia, it has twice as fast warming (at least 2 °C) over the same period. For the purposes of designing and assessing cement-concrete...

The cement concrete road pavements we can characterized with sensitivity to temperature changing and after that linear deformation, stresses owing to temperature gradients also. In pavement design we have to consider the traffic load and temperature condition. Unsuitable connection of concrete slabs has in results failure of pavements. In article is description of cement concrete pavements behavior under temperature changing and alternative solutions of structures and measures in rehabilitation design.

In Bratislava, Capital of Slovakia, there is a huge development boom on the edge of the Old City, where is risen up a new complex down town of the city. The territory specified on the edge of the first ring called Chalupkova Centre will have around 20 high-rises with different function and there will be more than 20,000 parking spaces. At present, the operation of the territory is at the border of the saturation flows. There will be a new bus station and begins to reflect on the new tram routes. The extensive trav...

The territory of Slovakia is in Central Europe at the interface of the parts of the continent that are influenced by continental and by oceanic climates. This is reflected in the variability of weather and climate characteristics. Apart from traffic load, change of climatic conditions are one of the constant external factors with adverse effects on physical and mechanical properties of different structural multi-layers in pavements. These impacts together with frost index and their corresponding changes significan...

There are many technologies in road construction to ensure the better parameters of materials, mainly strength and deformation parameters and in recent years are very interesting and necessary so called environmentally acceptable technologies. With the development in the field of asphalt pavements there are various types of organic or chemical additives applied. The main reason of this application is to reduce the temperature used for producing and especially for laying of asphalt mixture. Chemical additives are s...