Application of Polymer Dispersions in Complex Additives for Heavy Concrete

Abstract— Corrosion resistance of concrete and reinforced concrete products is one of the main properties that affect the strength of structures built from these materials. Improving the corrosion protection of such products is an urgent task of modern materials science. The article is devoted to the study of the effect of a new complex additive on the physical and mechanical properties, such as water absorption and strength, of a heavy concrete mix. The object of the study was B22.5 grade concrete. The complex additive was obtained by homogenizing an aqueous emulsion of petroleum resin and C-3 superplasticizer. The water absorption and strength of the samples were determined according to State Standard 12730.3-2020 and State Standard 28570-2019, respectively. The results of the study gave evidence showing that the complex additive imparts plasticizing and water-repellent properties to a heavy concrete mix. The effect of the concentration of the complex additive on the water absorption and compressive strength was assessed, which made it possible to determine the optimal concentration range of the additive in the concrete mixture for use in the manufacture of concrete and reinforced concrete products.