CEMENT COMPOSITION AND METHOD OF PRODUCING CURED CEMENT ARTICLE USING SAID COMPOSITION Russian patent published in 2019 - IPC C04B28/04 C04B40/00 C04B40/02 C04B14/38 C04B18/14 C04B22/06 C04B24/26 C04B111/20 

FIELD: chemistry.

SUBSTANCE: invention relates to a cement composition having high fluidity (for example, 0-drop mobility of 200 mm or more) before curing and having high compression strength (for example, 320 N/mm² or more) after hardening. Cement composition contains cement, fine silica powder having BET specific surface area of 10 m²/g up to 25 m²/g, inorganic powder with 50 % integral particle size of 0.8 mcm to 5 mcm, fine aggregate with maximum particle size of 1.2 mm or less, plasticiser, antifoaming agent and water. Cement fraction ranges from 55 vol. % to 65 vol. %, the portion of fine silica powder ranges from 5 vol. % to 25 vol. %, and the proportion of inorganic powder is from 15 vol. % to 35 vol. % of total amount of 100 vol. % of cement, fine silica powder and inorganic powder.

EFFECT: invention also relates to a method of producing cement articles.

10 cl, 1 dwg, 6 tbl