The paper presents a study of the possibility of obtaining artificial porous aggregates for lightweight concrete based on household cullet and various types of ash and slag waste from thermal power plants: ash disposal, slag and ash and slag mixture from the ash dump. The influence of the type and amount of ash and slag waste in the composition of the charge, as well as the temperature and time of firing, on the final properties of the material has been investigated. The properties are determined and photographs of the macro- and microstructure of the obtained experimental samples of artificial porous filler are presented.
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