| 摘要 |
FIELD: building materials industry; methods and equipment for the bricks manufacture. ^ SUBSTANCE: the invention is pertaining to the field of the building materials industry and may be used in production of bricks, including the facing brick, building stones, blocks and tiles. The technical result of the invention is the expansion of the assortment of the building bricks and the means for its production, provision of simultaneously of the heightened strength and the frost resistance the bricks, improvement of the bricks decorative effect of their front-face surface imitating the surface texture of the natural building stone. The given technical result is reached because the building wall bricks having the form of the monolithic polyhedron is manufactured out of the mixture having the humidity of 3-10 % and containing a chalkstone with the size of its particle of no more than 8 mm, portland cement of the grade of no less than 400 - as the binding substance, at their ratio (in mass %): the indicated chalkstone - 85.1-90.0, portland cement of the grade of no less than 400 - 10.0-14.9 by the mixture molding under the pressure of 15.0-20.9 MPa during 2-9.9 seconds and by the heat-moisture treatment or a by aging up to the mixture gains the strength amounting to no less than of 50 % from the grade strength of the a ready bricks. The invention gives the characteristic of the building bricks, the method of the bricks manufacture and the set of equipment used for the bricks production. ^ EFFECT: the invention ensures expansion of the assortment of the building bricks, simultaneously heightened strength and the frost resistance of the bricks, improvement of decorative effect of the bricks front-face surface imitating the surface texture of the natural building stone. ^ 25 cl, 1 dwg, 1 ex |
