CEMENT USING INDUSTRIAL PRODUCTION WASTES Russian patent published in 2014 - IPC C04B7/12 

FIELD: construction.

SUBSTANCE: its main component - clinker is obtained at decreased power costs, i.e. at the temperature that is lower than production temperature of Portland cement clinker from natural raw material (limestone+clay), owing to adding to composition of its flux flow charge in the form of metalware production waste and thermally activated aluminosilicate component - burnt rock. One and the same raw material is included both in cement composition and in clinker composition - and this is burnt rock. Composition of the supposed cement is as follows, wt %: burnt rock 5-80%; product of coke and by-product processes 4-6%; clinker is the rest. Composition of clinker for the proposed cement, wt %: burnt rock 22-24%; waste of metalware production processes 4-6%; limestone is the rest.

EFFECT: proposed cement is obtained at maximum use of technogenic products.

1 dwg, 3 tbl