RU2311291C1 - Method for decorative concrete article production (variants) - Google Patents

Abstract

FIELD: concrete article production, particularly to manufacture wall panels and slabs.

SUBSTANCE: method involves proportioning binding agent, water and fillers; mixing thereof and pouring the obtained mix in form; laying decorative material in form and curing thereof. The decorative material is non-hardened billets made of cement-sand mix including colored cement and quartz sand in proportion of 1:4 with water-cement ratio of 0.35-0.45. In accordance with another variant the decorative material is non-hardened billets made of cement-sand mixes with water-cement ratio of 0.75-0.85, which are laid in concrete mix in elastic removable shell.

EFFECT: simplified decorative article production.

2 cl, 2 ex

Description

The invention relates to the production of a variety of concrete products, including for construction purposes, for example wall panels, slabs.

A known method of manufacturing concrete products, including dosing of binder, water, coarse and fine aggregates, mixing them, laying concrete mixture in a mold, laying decorating material (dry mix), hardening [1].

There is also known a method of manufacturing decorative concrete products, including dosing of binder, water, aggregates, mixing them, laying concrete mixture in a mold, laying decorative material (large natural aggregate), hardening [2].

The objective of the invention is to simplify the method of manufacturing decorative concrete products.

The technical result is achieved by the fact that in the method of manufacturing decorative concrete products, including dosing of binder, water, aggregates, mixing them, laying the concrete mixture in the mold, laying the decorating material, hardening, unhardened blanks from cement-sand mixtures containing colored cement and quartz sand in a ratio of 1: 4, with a water-cement ratio of 0.35-0.45, which are laid on the concrete mixture in the form of a pattern protruding above its surface.

The result is also achieved by the fact that in the method of manufacturing decorative concrete products, including dosing of binder, water, aggregates, mixing them, laying the concrete mixture in the mold, laying the decorating material, hardening, unhardened blanks from cement-sand mixtures containing colored cement and quartz sand in a ratio of 1: 4 with a water-cement ratio of 0.75-0.85, which are laid in a concrete mixture in an elastic, removable shell.

The method is illustrated by examples.

Example 1. The manufacture of panels with a three-dimensional pattern.

The starting components (Portland cement, water, coarse aggregate, silica sand) are prepared and dosed. The components are mixed, get a concrete mixture with a water-cement ratio, for example, equal to 0.4. The mixture is placed in a mold for the manufacture of a wall panel.

From colored cement and quartz sand in a ratio of 1: 4 with a water-cement ratio of 0.35-0.45, decorating material is prepared in the form of an uncured rigid billet. The blank may take the form of an oval, circle, lattice, figures of flora and fauna, etc. Several blanks of various configurations and colors can be prepared. The workpiece is laid on the concrete mixture in the form of a pattern protruding above its surface.

Example 2. The manufacture of decorative plates.

A cement-sand mixture is prepared using colored cement and quartz sand in a ratio of 1: 4, with a water-cement ratio of 0.75-0.85. They take an elastic shell made, for example, of an artificial film used in the food industry. The end part (end) of such a shell may have a cross section in the form of a geometric figure (circle, oval, triangle, etc.) or another figure. The elastic shell on the side of the end part is slightly twisted, the shell volume is filled with a colored cement-sand mixture, after which the shell is placed in any part of the mold for the production of blocks. Then the mold is filled with concrete mixture, and the shell together with the contents is rotated around its own axis (untwisted), squeezing decorating material out of it through the curly part. In this case, the cement-sand mixture in the shell remains in shape. After that, the shell is finally removed from the mold. The contents of the mold are compacted and left to harden. Using various (in size) elastic shells with various figured parts, colored cement-sand mixtures, it is possible to produce decorative concrete blocks. Blocks are cut, getting two-color or multi-color plates.

The method is simple, allows you to get the original decorative concrete products.

Information sources

1. A.S. No. 409989 USSR, C04B 41/00, 1974.

2. A.S. No. 1648009 USSR, B28V 11/00, 1991.

Claims (2)

1. A method of manufacturing decorative concrete products, including dosing of a binder, water, aggregates, mixing them, laying concrete mixture in a mold, laying decorative material, hardening, characterized in that as the decorating material use uncured blanks of cement-sand mixtures containing colored quartz cement and sand in a ratio of 1: 4 with a water-cement ratio of 0.35-0.45, which are laid on the concrete mixture in the form of a pattern protruding above its surface. 2. A method of manufacturing decorative concrete products, including dispensing a binder, water, aggregates, mixing them, laying concrete mixture in a mold, laying decoration material, hardening, characterized in that as the decoration material is used uncured blanks of cement-sand mixtures containing colored quartz cement and sand in a ratio of 1: 4 with a water-cement ratio of 0.75-0.85, which are laid in a concrete mixture in an elastic, removable shell.