RU37123U1 - INSULATED CONCRETE PLATE FOR ATTIC BUILDINGS - Google Patents

Description

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Thermal insulating concrete slab for attic buildings

The utility model relates to construction and can be used in the construction of new buildings with an attic type floor and reconstruction of existing buildings.

Filling the under-roof space in attic-type buildings can have various options, the most common of which is with the ventilation system of the under-roof space (see Yu.A., Lavrenkin, VB Belevich “The use of heat-insulating materials in metal roofs in the construction of attics. R1nf. Bulletin “Roofing and insulation, 2000, No. 2 (8), pp. 20–23). The disadvantages of this design of the attic roof with the use of various fibrous, organic and cellular concrete materials as a heat insulator are:

-fast (within 5-8 years) caking of fibrous materials, inconvenience in work, mandatory protection against atmospheric influences;

- flammability of foam polymer insulators, accompanied by the release of toxic substances, high cost of products;

-high thermal conductivity and average density of non-autoclaved cellular concrete products;

- Significant shrinkage deformation and low tensile strength of non-autoclaved aerated concrete products, which do not allow manufacturing products of low average density parameters, characterized by sufficient crack resistance, good transportability and durability.

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The disadvantages of polystyrene heat-insulating boards are the relatively high cost of products and their combustibility, accompanied by the release of toxic substances.

The essence of the utility model is that the heat-insulating concrete slab for attic buildings, which is a horizontally located parallelepiped with a trapezoidal groove on one of the sides and a trapezoidal crest on the other side, is made of autoclave-free cellular concrete dispersed reinforced with pieces of synthetic fibers.

The possibility of the claimed model is explained by the fact that the dispersed reinforcement of foam concrete with segments of synthetic fibers allows to obtain light heat-insulating concrete with tensile strength in bending equal to compressive strength; thus, sufficient crack resistance of materials and products made of them with a density of 150-7-500 kg / m with the required thermal conductivity is ensured.

Technical characteristics of fiber-reinforced concrete in comparison with other heat-insulating materials are presented in table 1.

The essence of the utility model is illustrated by drawings, where:

FIG. 1 shows a heat-insulating fiber-reinforced concrete slab;

FIG. 2 - the construction of the attic roof using fiber-reinforced concrete slabs as a heat-insulating layer.

The plate is a horizontally located parallelepiped 1, on one side 2 of which a trapezoid groove 3 is located, and on the other side 4 - a trapezoidal crest 5.

Formwork forms for slabs are metal-plastic or metal cassettes.

Products are molded in factory or construction conditions using injection molding technology in an autoclave-free manner.

- thickness from 50 to 150 mm (depending on climatic conditions of construction);

-width up to 600 mm and length up to 3000 mm (depending on the overall dimensions of the supporting structures of the roof);

- depending on the calculated loads, the concrete class is selected (from 0.5 to 2.0 M Pa).

The advantages of this model include:

- incombustibility of filaments and resistance to alternating dark impacts;

-high thermal insulation qualities, provided by a low coefficient of thermal conductivity, which allows you to keep indoor heat in winter and cool in summer;

-guaranteed protection against caking during the entire period of operation of buildings is one of the most important qualities of thermal insulation used in inclined structures of attic floors;

- the possibility of a perforation device that does not reduce the mechanical characteristics of the material, but significantly reduces the resistance to vapor permeation of products, which eliminates the need for a vapor barrier layer;

- the material is perfectly glued and nailed, therefore, when decorating the premises from the inside, with plasterboard sheets, lining and other materials, the device of the crate is not required;

-lower cost, providing resource savings while improving the quality of facilities under construction;

-ecological purity of products made of fiber-reinforced concrete, due to the purity of the starting material.

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Claims (1)

The heat-insulating concrete slab for attic buildings is a horizontally located parallelepiped, characterized in that there is a trapezoidal groove on one side and a trapezoidal crest on the other side, and is made of autoclave-free cellular concrete dispersively reinforced with pieces of synthetic fibers.