Abstract
The research results of the composition, properties and structural features of bottom ash waste from the Trans-Baikal Territory were presented to determine the possibility of their use in road construction. It was stated that bottom ash waste are non-frost heaving. The indicator of specific effective activity of natural radionuclides was determined SEA (226Ra, 232Th, 40K) for samples of pulverized ash and ash and slag mixtures, which was less than 370 Bq/kg and indicated the possibility of their use in road construction without restrictions. The hydraulic properties of pulverized ash were identified that characterize them as latently active, and ash and slag mixtures as inert materials, which limits the possibility of their use as a separate binding agent. The conclusion was made about the need for an integrated approach to a targeted change in the physical and mechanical properties of ash and slag waste including the use of various mineral binders and stabilizing additives to include waste in the composition of road materials.
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