SU833895A1 - Method of making three-layer ferroconcrete panels - Google Patents

Description

, 54) METHOD OF MAKING THREE-LAYERED REINFORCED CONCRETE PANELS

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The invention relates to the building materials industry and can be used in the manufacture of three-layer reinforced concrete panels in factory conditions.

The known method of manufacturing two-layer concrete products, including the sequential laying of the structural layer of concrete and the layer of insulation l.

The disadvantage of this method is that it provides for the use of the finished product as a heat insulation material - a mineral wool slab, rather than a semi-finished product, which hardens together with structural concrete.

Closest to the proposed method of manufacturing three-layer reinforced concrete products, including sequential laying of the lower outer layer of heavy concrete, light concrete layer and upper hard concrete and heat treatment of panels 21

The disadvantage of this method is that when forming a layer of insulation it is difficult to provide a predetermined thickness of insulating concrete and the required humidity after the end of heat treatment, since

Drying of the finished product requires significant energy consumption.

The purpose of the invention is to reduce energy consumption while reducing the equilibrium moisture.

This goal is achieved by the fact that in the method of producing three-layer reinforced concrete panels, including the sequential laying of the lower outer layer of heavy concrete, light concrete layer and top layer of heavy concrete and heat treatment of the panels, after laying a light concrete layer, it is dried at 80 90 0 within 60-90 minutes to a moisture content of 8-13%.

The method is carried out as follows.

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The bottom outer layer is formed of a panel of heavy concrete, then a layer of lightweight concrete is laid on it, compacted and its thickness is checked, and then dried, light concrete

Claims (2)

Layer 5 at SO-EO C for 60-90 minutes before light concrete acquires an equilibrium moisture content and reinforcement and heavy concrete are installed. The molded panel is fed to a thermoprocessing. Drying of the lightweight concrete layer allows laying the heavy concrete of the upper layer without precipitation, since after drying the heat insulating concrete partially cures and acquires sufficient strength. To reduce water content, plastering and fixing the thickness of the layer, a perforated prigrue equal to the weight of the outer layer of the concrete is applied. . N Rome r. In the manufacture of a three-layer reinforced concrete panel, after forming the lower layer of heavy concrete, a layer of vermiculite concrete with a mass of 400 kg / m 100 mm thick is laid, compacted and its thickness is checked. Over the surface of heat-insulating concrete, a thermite is installed and the layer of verticulite-concrete is dried during 75 minutes until it reaches an equilibrium moisture content of 10% and a strength of 2.0 kg / cm. Thereafter, reinforcement is installed on the insulating concrete, a layer of heavy concrete is laid and compacted, after which the panel is heat treated. To avoid wetting of the dried layer, the next layer of heavy concrete is asphamine or polyethylene plexus between them, which also serves as poreeation. The application of the proposed method for the manufacture of three-layer reinforced concrete panels allows to achieve a reduction in the tempering moisture of the panels and compliance with the design thickness of the concrete layers. The invention The method of manufacturing three-layer reinforced concrete panels, including the sequential laying of the lower outer layer of heavy concrete, lightweight concrete layer and top layer of heavy concrete and heat treatment of the panel, characterized in that, in order to reduce energy costs while reducing the equilibrium moisture, after laying the lightweight concrete layer t its drying at WO-EO C for 60-90 minutes to a moisture content of 8-13%. Sources of information taken into account in the examination 1. USSR author's certificate number 332066, cl. From 04 To 39/00, 1969. 2.Morozov N.V. Wall structures of large-panel residential buildings. M., stroiizdat, 1964.