FIBER CEMENT PRODUCTS FOR FLOORING AND THEIR MANUFACTURING METHODS Russian patent published in 2021 - IPC C04B28/02 C04B14/38 C04B40/02 

FIELD: building materials.

SUBSTANCE: present invention relates to fiber cement products for flooring that contain at least one or more pigments and that are at least partially colored in mass, also relates to methods for manufacturing such fiber cement products for flooring and options for their application. An air-cured fiber cement product for flooring, colored in mass, contains at least one or more pigments, while the specified product for flooring additionally contains polypropylene fibers in amount from 0.1 wt. % to 1 wt. % (wt. % per the total dry weight of a fiber cement composition) and fibers based on polyvinyl alcohol in amount from 0.1 wt. % to 3 wt. % (wt. % per the total dry weight of the fiber cement composition). A method for manufacturing an air-cured fiber cement product for flooring, colored in mass, includes at least stages of: (i) providing a fiber cement solution; (ii) manufacturing a fiber cement product for flooring using a method for producing fiber cement; (iii) providing air-curing of a fiber cement product for flooring; while, during stage (i) and/or stage (ii), one or more pigments are added to the specified fiber cement product, as well as, during stage (i) and/or stage (ii), polypropylene fibers in amount from 0.1 wt. % to 1 wt. % (wt. % per the total dry weight of the fiber cement composition) and fibers based on polyvinyl alcohol in amount of 0.1 wt. % to 3 wt. % (wt. % per the total dry weight of the fiber cement composition) are additionally added to the specified fiber cement product. The air-cured fiber cement product for flooring, colored in mass, is used as a building material.

EFFECT: technical result is an increase in the mechanical strength of the product.

11 cl, 13 dwg, 10 tbl