SPECIFIC FEATURES OF THE FORMATION OF THE MICROSTRUCTURE OF GRANULAR AGGREGATES ON DIFFERENT BINDING COMPOSITIONS (PART 3)

Abstract

This article represents a logical continuation of the research results presented in the previous publication and reflects the results of studies of the effect of the binder composition No. 3 (BC-3) on the formation of the microstructure and physical and mechanical properties of granular aggregates. The experimental results demonstrate that the best indicators of the strength of granular aggregates are provided with the adding of BC-3 in an amount of 15%, regardless of the fractional composition of quartz sand. In addition, the density of crystalline formations reflecting the microstructure of the samples directly affects the physical and mechanical properties of the composites. On dispersed micro fillers, as on a base plate, a dense microcrystalline structure of new formations of hydrated calcium silicates is formed. The addition of 15% binder composition No. 3 (BC-3) to the component composition of granular aggregates ensures the stability of physical and mechanical properties. Thus, they can be recommended for use as coarse aggregates in the preparation of special-purpose mortar mixtures