RESEARCH PHYSICAL AND MECHANICAL PROPERTIES OF SAND AND CEMENT FOR FOAM CONCRETE PRODUCTION

The article presents the results of experimental studies of the properties of sand and cement. A comparative study of cements from different manufacturers for physical and mechanical characteristics, as well as analyzed the mining sites of quarry sand in Akmola region and their characteristics on the physical and mechanical properties. Evaluation of the physical and mechanical characteristics of Portland cement was made for the three types. The main evaluation parameters were: setting time, compressive and flexural strength. Performed studies have shown that the sand deposits «Eltok» (Type 1) on the physical and mechanical properties can be used for building purposes in the production of foamed concrete. A comparative analysis of the data setting time and strength properties of Portland cement shows that the most positive effect on the kinetics of concrete strength has «Kokshe-Cement» (Type 3). Based on the parameters, as well as taking into account their effectiveness on the physical and mechanical properties of concrete for further studies, the composition of Type 3 was chosen. As a result of the study of properties it is shown that the sands and cements are suitable for use in the foam concrete production.