METHOD OF PRODUCING PAPER WEB FOR APPLYING PATTERN ON CONCRETE SURFACE (EMBODIMENTS) AND METHOD OF APPLYING PATTERN ON CONCRETE SURFACE Russian patent published in 2019 - IPC C04B41/72 D21H19/12 D21H21/00 

FIELD: construction.

SUBSTANCE: in the method of producing a paper web for applying a pattern on a concrete surface according to a first version, a paper web with density of 150–210 g/m² is used, which is impregnated with moderator of concrete hardening: or 2–8 % aqueous solution of nitrilotrimethanephosphonic acid, or composition in percentage ratio: sodium gluconate 3–5; xylitol 2–6; water is the rest, which is then dried and the given pattern is applied using offset printing using the paint with a photopolymerising composite. In the method of producing a paper web for applying a pattern on a concrete surface according to a second embodiment, a paper web with density of 150–210 g/m² is used, on which with the help of printing head there applied is specified pattern by decelerator of concrete hardening, which is either 2–8% aqueous solution of nitrilotrimethanephosphonic acid, or composition in percentage ratio: sodium gluconate 3–5; xylitol 2–6, then paper web with applied pattern is dried. Method of applying a pattern on a concrete surface comprises placing paper web with a retarder prepared in said method into a mold, wherein paper is densely cut in accordance with dimensions of concrete article, is adhered by means of double-sided adhesive tape to plastic base with thickness of 0.2–0.5 mm, laid on the bottom of the mold with a pattern upwards, poured with a concrete mixture with subsequent compaction on a vibration table and after strength is washed with water using a high-pressure apparatus, then dried.

EFFECT: technical result is obtaining a pattern with clear contours on concrete surface, faster transfer of pattern on concrete surface with simultaneous cost reduction.

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