Abstract
Introduction. Asphalt mixtures are one of the most widely used materials in the construction of roads. For the production of these mixtures, mainly conditioned mineral materials are used — coarse aggregate, fine aggregate and filler, and bitumen is used as a binder. Problem statement. In Ukraine, the filler is mainly used material obtained by grinding the carbonate rocks, which is established in DSTU B V.2.7-119 and DSTU B V.2.7-121. At the same time, as a result of coal combustion, millions of tons of dusty waste are generated at power generating plants of Ukraine - fly ashes and ashes from the hydraulic mine dump. These materials are close by grading to the requirements for the filler in accordance with DSTU B V.2.7-121 and probably can be used for the production of asphalt mixtures. Purpose. Determination of the possibility of using the fly ashes for the production of asphalt mixtures. Materials and methods. Type B asphalt concrete and mineral fillers of different origins were used during the research. Results. Test results showed that the studied fly ashes can be used for the production of asphalt mixtures, because the complete replacement of limestone filler with fly ashes from the thermal power plants does not lead to the deterioration of asphalt mixtures properties.
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