The Modifying Additive for Concrete Compositions Based on the Oil Refinery Waste

The use of chemical and mineral additives is the most effective way to improve the quality of the concrete, and to give them specific properties. Expansion of the range of the chemical additives of compound action through the use of oil refinery waste of enterprises in the region is a relevant and economically feasible task. Surfactants derived from petrochemical synthesis products and substances formed during refining, are not only inexpensive and abundant, but also significantly exceed the additives of the natural origin by their technical properties. Therefore, the analysis of oil refinery waste applicability as a modifying additive for concrete is of a scientific and practical interest. The decline in water absorption by 2 - 2.5 times, the density increase by 10% on average, an increase in the strength of concrete indicators of the modified compositions, gives grounds to define organic waste refinery as a chemical additive that improves the physical and mechanical properties of concrete. The experimental results enable one to recommend it for modification of concrete and concrete mixtures in the production of both construction and repair work at the facilities of industrial enterprises, residential buildings, houses, boiler house foundations, etc. (C) 2016 The Authors. Published by Elsevier Ltd.