2024/12/13 by Lischenko, A. N.
#fluidity #foam concrete #mechanical properties #porosity #slag and fly ash of thermal power plants #механические свойства #пенобетон #пористость #текучесть #шлак и зола-уноса ТЭС
paper · doi:10.71536/spgs.2024.v20n4.3
The paper considers the ways of using fly ash and slag from the Zuyevskaya TPP, and also identifies the prospect of using them in the production of non-autoclaved foam concrete. The possibility of using ash and slag waste from thermal power plants as a partial replacement for Portland cement is considered. The results of the study of the effect of fly ash and TPP slag additives from the mass of the mixture with Portland cement on the physical and mechanical properties of foam concrete grades with an average density of P400–P800 are presented. The influence of the content of additives of ash and slag waste of thermal power plants on the strength and average density of foam concrete has been studied. Additives of fly ash and slag of thermal power plants to Portland cement reduce the average density, increase the strength and porosity of the binder matrix, which will favorably affect the thermal protection properties of foam concrete based on them. It is proved that ash and slag waste from thermal power plants can be effectively used in the production technology of products made of non-autoclaved foam concrete. It has been established that on the basis of such raw materials as fly ash and slag, it is possible to obtain foam concrete with a strength of at least 1,25–5,75 MPa.