RAW MIX FOR PREPARATION OF ASH-AND-SLAG CONCRETE Russian patent published in 2005 - IPC

FIELD: building materials industry; production both of monolithic and prefabricated structures and items out of concrete.

SUBSTANCE: the invention is pertaining to the field of building materials industry and may be used for production both of monolithic and prefabricated structures and items out of concrete based on an ash-and-slag filler and allows to provide a capability of an effective utilization of the large-tonnage waste products of industry. The technical result allows to increase the concrete strength, to simplify the process of its production and to decrease its cost. The raw mix for preparation of the ash-and-slag concrete includes a filler and a binder consisting of the flue ash produced from incineration of brown coal and a liquid glass produced from a multi-tonnage production waste of crystalline silicon -microsilica and containing carbonaceous impurities - blacklead and carborundum and also contains the indicated flue ash of the second (II) field, the indicated liquid glass with a silicate module n=1 and firmness ρ = 1.38 g / cm³, and in the capacity of the filler - a stacking ash-and-slag mix with grain sizes of 0.63-2.5 mm, produced from incineration of brown coal at the following contents of components (in mass. %): the indicated flue ash - 25.6-27.0, the indicated liquid glass - 18.9-23.1, the indicated ash-and-slag blend - 51.3-54.1.

EFFECT: the invention ensures an increase of the concrete strength, simplification of the production process and a decrease of its cost.

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