SU1537540A1 - Method of producing ferroconcrete articles - Google Patents

Abstract

The invention relates to the construction, in particular, to the production of reinforced concrete products, such as enclosing panels, floor panels with smooth surfaces. The purpose of the invention is to obtain a smooth surface of finished products and increase productivity by eliminating plastering. The method of obtaining reinforced concrete products includes the installation of reinforcement in the form, laying in it of the concrete mix, the impact of the electromagnetic floor, curing. A perimeter partition with a gap, which is filled with metal powder, is pre-installed into the mold, then the concrete mix is simultaneously laid, an electromagnetic field is applied and the perimetric partition is moved, and the displacement is performed at a speed equal to the speed of the concrete mix.

Description

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The invention relates to the construction, in particular, to the production of reinforced concrete products, for example, enclosing

panels, floor panels, and so on with smooth surfaces.

The purpose of the invention is to obtain a smooth surface of finished products and increase productivity by eliminating plastering.

The proposed method is carried out as follows.

A layer of metal powder is poured onto the hinged bottom of a rectangular metal shape. A perimetric partition wall with a gap descends completely into the mold against the metal powder surface. The perimeter wall can be made of any material (metal, fluoroplastic, vinyl plastic, wood, etc.). Metal powder is poured into the gap between the shape and the perimetric partition, reinforcing mesh or carcass necessary for the design of the product is mounted. Placing the form in a solenoid connected to the AC mains, keep it in an electromagnetic field until the end of the process. Under the action of an electromagnetic field and inductive fields in the armature, metal powder poured into a shape around the perimeter partition, as if pressed, transformed into a monolith, and acquires its shape, having a perfectly smooth surface and subsequently performing its function, then simultaneously laying the concrete mix and move the perimeter partition, and the movement is made at a speed equal to the speed of movement of the concrete mix.

When the form is filled with concrete to the upper limits, the mixture is stopped and the perimetric partition is completely out of the form.

The stresses arising from the action of the electromagnetic field squeeze the mixture from all sides to the center, squeezing it from the walls of the monolith from metal powder, removing the adhesion, and the surface of the concrete products is smooth.

The intensity and direction of the lines of force of the electromagnetic field, can be adjusted by compressing the mixture by lines of force.

The interaction of the electromagnetic field power lines and inducing currents leads to the heating of the concrete mix. This heating process can be regulated by changing the intensity of the electromagnetic field.

If necessary, in order to achieve uniform crystallization of concrete, a high-frequency inductor operating in an alternating mode is built in to the bottom and external surfaces of the mold. As a result, in a mixture of concrete,

as if “running jets that mix the concrete mix. At the same time, there is no need to vibrate the mold with the concrete mix.

After curing the concrete is turned off

the current, temporary form — the monolith crumbles to form a metal powder. The bottom of the mold is advanced and the metal powder is poured onto the conveyor located under the mold and reused for new concrete fillings. Thus, the metal powder is repeatedly used in the process.

The drawing shows a flow chart of a method for producing reinforced concrete products.

A perimetric partition 2 with hooks 3 to the bottom is placed in the metal mold 1. A framework 4 is mounted inside the partition wall. Metal powder 5 is poured into the gap between the mold 1 and the partition 2 and at the bottom of the mold.

A high-frequency inductor 6 is embedded on the outer sides of the form and bottom. Form 1 is placed in an electromagnetic field. From the top of the bunker serves the concrete mix. After the process is completed, metal powder 5 is poured onto conveyor 7.

The reinforced concrete products obtained by the proposed method have a smooth surface and make it possible to completely eliminate all piecework from the construction industry. This gives a 30% saving in labor costs. They are ready immediately for molar works for the interior decoration of buildings and structures. In addition, the work force is released from plastering, Q and also manual labor is reduced by 50% and the wet processes at the construction site are completely eliminated.

In the manufacture of reinforced concrete products for wiring, you must pre-set the shape and place of the grooves. 5 The processes of laying the concrete mixture and moving the perimeter partition, as well as adjusting the voltage of the electromagnetic field, can be automated.

Claims (1)

Formula of invention A method of manufacturing reinforced concrete products, which includes placing the reinforcement in the form, laying the concrete mixture into it, applying an electromagnetic floor, curing, characterized in that, in order to obtain a smooth surface of the finished products and increase productivity 1537540 56 by avoiding plastering, a pre-impact by an electromagnetic field and a perimeter-displacement perimeter partition is installed in a mold with a choir, The partition wall with a gap, which, moreover, is displaced with scrap-filled metal powder, with a resistance equal to the rate of displacement of the concrete mix at the same time, 5 n of the concrete mix.