CERAMIC MIXTURE FOR MAKING FRONT ARTICLES Russian patent published in 2019 - IPC C04B33/04 C04B33/13 

FIELD: construction.

SUBSTANCE: ceramic mixture relates to production of construction articles and can be used in making facing and face bricks, tiles, slabs and stones for finishing facades of buildings. Said technical result is achieved due to introduction of polyrite and boric acid into composition of stiff clay using the following composition of ceramic mass, wt%: stiff clay – 85.0–97.0; polyrite – 1.0–10.0; boric acid – 2.0–5.0. If the content of the polyrite in the charge is less than 1 wt%, the properties do not change substantially, and the increase in the polyrite content of more than 10 wt% does not lead to further improvement of properties. Introduction of boric acid in the declared limits provides for products self-glazing.

EFFECT: high compression strength and frost resistance of articles.

1 cl, 1 tbl, 4 ex