RU2304044C1 - Method of incrustation of concrete articles - Google Patents

Abstract

FIELD: manufacture of concrete and reinforced concrete articles (tiles, blocks, panels, pillars).

SUBSTANCE: proposed method of incrustation of concrete articles consists in securing the incrusting unit on surface of blank in recesses made preliminarily which reproduce the pattern. Blank is made from low-flow concrete mix and incrusting unit is made from cast expanding concrete mix of the following composition, mass-%: expanding cement, 25-75 at water-to-cement ratio of 0.8-1.2. Incrusting unit may be secured in blank before its hardening.

EFFECT: simplified procedure of incrustation.

2 cl, 3 dwg, 2 ex

Description

The invention relates to the production of concrete, reinforced concrete products (tiles, blocks, panels, columns).

A known method of inlaying products, including the implementation of the recesses on the surface being trimmed and fixing them inlaid element (made of natural stone) [1]. The method requires special preparation of the inlaid element.

There is also a method of inlaying concrete products, which consists in fixing on the surface of the workpiece an inlaid element (made of metal) in previously applied recesses that reproduce the pattern [2]. The method requires the use of ultrasonic crushing of the material and the use of cliches. The method is complex and time consuming.

The objective of the invention is to simplify the inlay process.

The technical result of solving the stated problem is achieved by the fact that according to the method of inlaying concrete products, which consists in fixing the inlaid element on the surface of the workpiece in pre-deposited recesses that reproduce the pattern, the workpiece is made of inactive concrete mixture, and the inlaid element is made of expanding cast concrete mixture of the following composition, wt.%: expanding concrete 25-75; aggregate 25-75, with a water-cement ratio of 0.8-1.2. The inlaid element is fixed in the workpiece until it is cured.

1 and 2 depict possible devices for applying depressions in the surface of the workpiece, respectively, of the crown and tree trunk; figure 3 shows an inlaid concrete product (panel).

The method is illustrated by examples. In all cases, the position of the inlaid surface of the workpiece is horizontal.

Before carrying out operations according to the instructions, devices for applying depressions are prepared. As such devices, molds in the form of ringed and bent in accordance with a given configuration thin-walled strips 1 of sheet metal (aluminum, plastic, etc.) having loops 2 for mold extraction can be used. The hinges are attached (soldered, glued) to the strips or are removable (screwed or mounted on hooks).

Prepared with a different water-cement ratio (W / C) cast concrete mixture (cone sediment more than 15 cm), table 1. Coarse (for example, crushed stone, gravel) and / or fine (for example, silica sand) aggregates can be used as part of the mixture.

Table 1
Cast concrete mixes Components The content in the compositions, wt.%: No. 1 Number 2 Number 3 Expanding cement
Aggregate 75
25 fifty
fifty 25
75 W / C 0.8 1,0 1,2

Example 1. On the surface of a future product, obtained from a slow-moving concrete mixture (precipitate cone 1-3 cm), perform recesses 5-30 mm, for example, in the form of a picture. Such recesses can be obtained by molding an uncured preform or mechanically applied to the surface of a cured preform. The recesses in the cured workpiece are filled (flush with the surface) with cast concrete, forming an inlaid element after curing. During curing, the cast concrete mix expands, holding firmly to the recesses of the workpiece.

Example 2. On the surface of an uncured billet made on a slow-moving concrete mixture (draft of a cone of 1-3 cm), recesses of 5-30 mm are made, for example, using devices (FIGS. 1 and 2). The recesses in the workpiece, preserving the clear contours of the pattern, are filled (flush with the surface) with cast concrete mixture, which forms an inlaid element after curing. In this case, the curing of inactive and cast concrete mixtures is carried out simultaneously.

The proposed method allows to obtain (in the case of using colored cements) on the surfaces of products colorful images with clear contours. At the same time, the process of fixing the inlaid element is greatly simplified. The method can be used in the decoration of residential, public, industrial, religious buildings and structures.

Information sources

1. Kiswani for inkrustation, Damascus - Syria. (Avenue).

2. A.S. No. 453388 USSR, MKI C04B 41/00, 1974.

Claims (2)

1. The method of inlaying concrete products, which consists in fixing on the surface of the workpiece an inlaid element in pre-applied recesses that reproduce a pattern, characterized in that the preform is made of inactive concrete mixture, and the inlaid element is made of cast expanding concrete mixture of the following composition, wt.%: expanding cement 25-75, aggregate 25-75 with a water-cement ratio of 0.8-1.2. 2. The method of inlaying concrete products according to claim 1, characterized in that the inlaid element is fixed in the workpiece until it is cured.

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