The use of small granite slabs as a substitute for fine aggregate in heavy concrete

The influence of the content of granite granite slab (KGP) as a fine aggregate in a concrete mixture with proportions to the standard fine aggregate (Volga river sand) from its absence (control sample) is considered through the values 1:3, 1:1, 3:1 up to 100 %. The values of workability and water-cement ratio were fixed at P2 and V/C = 0.6, respectively. Using these introductory data, a series of concrete samples were produced to assess the effect of the fine aggregate composition on such physical and mechanical parameters as density and compressive strength on the 7th and 28th days of hardening.