METHOD OF PRODUCING POROUS AGGREGATE Russian patent published in 2014 - IPC C04B20/06 C04B20/10 

FIELD: chemistry.

SUBSTANCE: invention relates to production porous aggregates for concrete. In the method of producing a porous aggregate, which involves preparation of a ceramic casting mixture, immersing aggregate particles into the mixture, drying said particles and firing, drying is carried out to moisture content of 1-8 %, firing is carried out at temperature of 1100-1200°C and the aggregate used is natural schungite, wherein the mixture has the following composition, wt %: natural schungite 10-15, flue ash 10-15, clay 25-30, water 45-50.

EFFECT: obtaining light and strong porous aggregate.

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