METHOD OF PRODUCING POROUS AGGREGATE Russian patent published in 2013 - IPC C04B14/00 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 until achieving moisture content of 4-6%, firing is carried out at temperature of 1200-1250°C and the aggregate used is natural pearlite, wherein the mixture has the following composition, wt %: natural pearlite 25-30; clay 25-30; water 40-50.

EFFECT: obtaining light and strong porous aggregate.

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