SU647262A1 - Unit for drawing out glass tubing - Google Patents

Description

Union of Soviet Socialist Republics The State Committee on Inventions and Discoveries of OPs AND STORIES FOR AUTHOR'S CERTIFICATE (61) Supplementary to ed. certificate (22). Claim 30.03.72 (21) 1764823 / 29u33 with the accession of application no. (23) Priority Published on 15 .02.79. Bulletin No. 6 Date of publication of the description 18.02.79 647289 (51) M.Cl 04 B 39 / 02 В 32 В 13 / ОО (53) УДК 666.97. .035 (088.8)

(72) Author

the invention

G. K. Sokolovsky (71) For Fiiqiio-HccneaoBaTenbCKHfi /:

(54) METHOD OF MANUFACTURING IRON-LIGHT

one

The invention is related to the building materials industry and can be used in the manufacture of reinforced concrete floor slabs and wall panels with increased prefabrication.

There is a method of finishing concrete products, including wetting the concrete surface with water, sprinkling it with a layer of cement and laying cement mortar, followed by laying decorative plates ij.

 The known method is suitable for finishing building products in construction conditions and does not allow to obtain. product with increased factory readiness in the process of its manufacture.

The closest to the described invention to the technical essence and the achieved result is a method of manufacturing reinforced concrete first products, including the installation of reinforcement, laying the finishing layer on a greased form, sealing it, pouring concrete

its mixture, its vibration compaction and thermo-image (product 2).

The known method has the following disadvantages: a large number of pores and air cavities are obtained on the surface of the products, there may be sagging on the edges of the panels and deviations from the geometrical dimensions, which necessitates the finishing of the surface of reinforced concrete products for painting or gluing with the equipment in construction conditions.

The purpose of the invention is to obtain a face & surface of products suitable for painting or pasting with both.

This is achieved by the method of manufacturing reinforced concrete products, including the installation of reinforcement, laying the finishing layer on the greased form, compacting it, pouring the concrete mix, vibroplating it and heat treating the product, after compacting the layer of dry concrete mix.

Claims (2)

Applying a layer of dry mixture to the finishing layer ensures that the stationary building production institute has the position of vibrating (5) an additional heat-resistant layer when laying and vibrating the congructive cement). An example of the method. On cleaned and oiled frets. The finishing layer .Biiicqiipl 5 mM and SEAL ari vibrating. Then a layer of dry concrete mix is applied before the water glint is removed from the surface of the finishing layer and the foreguard of the product is installed. The reinforcement can be installed before the application of the finishing layer in the 3tt) M case it is necessary to make the linings of the reinforcement for the reinforcement. After installation of the reinforcement, the mold is filled with a concrete mix, it is vibrated and the molded product is subjected to heat treatment. The dry mix absorbs water from the compacted finishing layer, as a result of which the latter becomes more rigid. After structural concrete has been laid, the dry mix layer adsorbs part of the water from the concrete and, in the contact zone with the dry mix, the concrete also becomes more rigid and less mobile, with the result that the finishing layer is not lined up, it is mixed with the concrete mix during the final compaction of the product. After heat treatment, the surface of a concrete product is smooth, without cavities and does not require additional preparation before painting or pasting with both. Claims The method of manufacturing reinforced concrete products, including installation-reinforcement laying the finishing layer on the lubricated form, sealing it, pouring the concrete mix, vibrating it, heat and thermal treatment of the product, characterized in that in order to obtain the front surface of the products suitable for painting or Pasting both, on the finishing layer after compaction apply a layer of dry concrete mix. Sources of information taken into account in the examination 1. USSR author's certificate number 375275, cl. C O4 B 39/08, 197О. 2. Kryukov RV. Bending is a technology of house-building production. L., SI, 1968, p. 125