ARTIFICIAL STONE FROM A CONCRETE MIXTURE WITH THE EFFECT OF ACTIVE SELF-CLEANING OF THE SURFACE IN THE EXTERNAL AIR ENVIRONMENT FOR THE PRODUCTION OF WALL PANELS Russian patent published in 2024 - IPC C04B28/04 C04B38/00 C04B41/60 C04B41/62 C04B111/20 

FIELD: construction.

SUBSTANCE: group of inventions relates to production of construction materials and can be used to produce wall panels exhibiting ability to self-cleaning under action of ultraviolet radiation. Concrete mixture for making artificial stone contains the following, wt. %: cement with clinker content of not less than 94–95 % from 15 to 20, microfiller based on calcite with fraction of 2–100 mcm from 5 to 10, sand with particle size of up to 0.4 mm from 5 to 10, sand with particle size of 0.4–1 mm from 10 to 30, white marble with particle size of 2.5–10 mm from 40 to 60, photocatalyst from 0.15 to 0.5, water – the rest. Photocatalyst is a composition of a polymer of ethylene oxide and titanium oxide.

EFFECT: preservation of the photocatalytic effect after mechanical processing of the artificial stone, which is ensured by uniform distribution of titanium oxide in the structure of the stone.

6 cl, 2 tbl