ӨЗДІГІНЕН НЫҒЫЗДАЛАТЫН БЕТОННЫҢ ҚАСИЕТТЕРІНЕ ТАБИҒИ ЦЕОЛИТТЕРДІҢ ӘСЕРІ

Abstract

The article presents the results of a study on the use of natural zeolites and stone dust as mineral fillers for self-compacting concrete (SCC), using local raw materials from Kazakhstan. The study used zeolite from the Chankanay deposit near Almaty and stone dust obtained from crushing rock waste at the Baltabay-1 deposit. The research aimed to assess the impact of different additive proportions on the rheological and strength properties of concrete mixtures. Various proportions of zeolite and stone dust (3-20% by cement weight) were tested, and their effects on the flowability, viscosity, and strength of concrete mixtures were determined after 7 days of curing. The results showed that adding up to 7% zeolite significantly increased the concrete strength by 80%, without negatively affecting its rheological properties, maintaining the required workability, and preventing water separation. The combination of stone dust and zeolite also improved the strength, reaching up to 70 MPa. In conclusion, the study demonstrates the effectiveness of using local mineral additives for developing high-quality self-compacting concrete with improved performance characteristics. Future research will focus on the optimal dispersion of these additives and their impact on strength development dynamics for different types of concrete.