METHOD TO PREPARE ASH-CONCRETE MIX Russian patent published in 2014 - IPC C04B40/00 C04B28/08 C04B111/20 

FIELD: construction.

SUBSTANCE: method to prepare an ash-concrete mix, including mixing of ash, portland cement, sand, crushed stone and water, where ash of hydraulic removal is enriched, then the produced ash jointly with portland cement, gypsum and plasticising additive LTSM-2 is ground in a ball mill to the specific surface of 4500-5000 cm²/g, the produced mix is introduced, 2/3 part of the estimated hardening water quantity, sand and quick lime into a dispersing hydrator and exposed to activation for 1-2 min at speed of blades rotation 100-200 rpm, in the concrete mixer they mix crushed limestone and the remaining part of the hardening water for 1-2 min, then the activated mixture from the dispersing hydrator is charged into a concrete mixer, and by final mixing they produce a concrete mix of homogeneous consistence.

EFFECT: cheapening of a mix, faster process of setting and hardening of an ash concrete mix, increased strength and stability of ash concrete properties, expanded area of recycling of anthropogenic origin wastes.

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