METHOD OF FABRICATING CONCRETE ARTICLE (VERSIONS) Russian patent published in 2012 - IPC B28B23/00 

FIELD: process engineering.

SUBSTANCE: invention relates to construction, namely, to method of fabricating concrete articles. Proposed method comprises preparing dry concrete mix by mixing cement, gravel and sand, adding dosed water, mixing said mix, placing reinforcing material and pouring prepared mix into mould. Reinforcing materials represent cords with or without impregnation with binding agent. Every said cord comprises braid and core made from single aramide threads with linear density of 9.0-3600 tex and single or twisted carbon threads with linear density of 100-3700 tex. Braid is made from single or twisted aramide threads with linear density of 9.0-600 tex with the number of braids varying from 1.0 to 12 braid per cm. Cords are laid in mould in parallel and stretched. After stretching, mould is filled by fresh concrete mix and vibrated. Prepared mix is cured at 22±2°C and humidity of 95+3% for 28 days.

EFFECT: higher quality and strength.

6 cl, 10 tbl, 5 ex