COMPLEX ADDITIVE FOR CONCRETE MIXTURE Russian patent published in 2017 - IPC C04B24/08 C04B14/08 C04B28/00 C04B18/02 C04B111/20 

FIELD: chemistry.

SUBSTANCE: additive is described that includes a mineral carrier, a surfactant, further contains oily waste, and spent silica gel is used as a mineral carrier, which is the waste of the gas preparation plant for transportation, filter and absorbent waste materials - as surfactants, formed at the step of recycling vegetable oil refining process containing waste diatomite (diatomaceous earth) and plant waxes, with the following ratio of components, wt %: spent silica gel 14-22, waste mass 26-30, oily waste 52-56.

EFFECT: increasing the strength of concrete, increasing the coefficient of salt resistance in a solution of sodium sulfate.

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