Sand -concrete is a mixture of cement, primarily the best Portland cement in quality with various sand options: river, purified and coarse (up to 5 mm), plasticizers are used as additives — chemical compounds to improve the mixture parameters. All parts of the composition carry their own load and determine the quality of sand concrete. For this reason, there are many types among building materials, and they are delimited by manufacturers according to the mixture formula. The method of preparing a dried mixture is usually the same — in special devices for mixing, parts of the composition are added in the priority and coordination with the calculations made by laboratories of manufacturers.