Study of the influence of the share of sand in the mixture aggregates for the physical and mechanical properties of road heavy concrete mixtures

In this article, research was carried out by the laboratory of the "China Railway 20 bureau of the group of corporations mff2 / cwp3", located in the Bukhara region, to select the optimal composition of the Cement concrete mixture based on local materials, as well as to determine the effect of the proportion of sand in the mixture of aggregates on the properties of the mixture, the results are presented, recommendations and conclusions are given.