Abstract
The road construction industry is one of the strategic industries of Ukraine. Currently, the issue of quality and availability of basic building materials for road construction is particularly acute, which is directly related to its high material intensity. Known stocks of conditioned raw materials that could be used as components of asphalt concrete are constantly decreasing, so it is necessary to look for alternative sources of raw materials for construction materials and study the possibility of their use. In this regard, the most effective use of local raw materials is the use of industrial production waste, which can become one of the solutions to the problem of the lack of raw materials of inorganic origin. In Ukraine, about 30% of all electricity is generated by burning solid fuels such as coal, oil shale, and peat. There are about 15 operating thermal power plants in Ukraine, which generate about 5-6 million tons of ash and slag waste per year. Thus, the fuel and energy complex waste generated at thermal power plants is a huge accumulation of ash in the form of dusty residues and lumpy sludge, as well as various ash and slag mixtures. These products of high-temperature treatment (1200-1700 °C) of the mineral part of the fuel are widely used in many countries and given the global trend towards an increase in the share of the secondary market for the use of secondary industrial products, an increase in the rate of their processing in Ukraine should be predicted.
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