Study on pozzolanic activity of porphyrites of the Karatau deposit

This paper presents the results of a comprehensive analysis and determination of the hydraulic activity of porphyrites from the Karatau deposit to determine the possibility of using it as an active mineral additive to cement. Based on the results obtained, new types of local hydraulic additives are recommended for use, providing partial replacement of expensive Portland cement clinker and improving the performance properties of Portland cement.