CN205776867U - A kind of ultralow heat conduction fire preventing steel structure construction wall - Google Patents

Abstract

The utility model discloses an ultra-low heat conduction fireproof steel structure building wall, which belongs to the technical field of building materials. Including facing layer, reinforced expansion mesh, anti-cracking layer, light steel keel, thermal insulation mortar, leveling layer, adhesive layer, airgel insulation board, anchor; the inner side of the light steel keel is laid with anti-cracking layer, so A facing layer is laid on the outside of the anti-cracking layer; thermal insulation mortar is laid on the inside of the light steel keel, and the surface of the thermal insulation mortar is laid with a ribbed expansion net, and a leveling layer is coated on the surface of the ribbed expansion net, and the leveling layer The surface is coated with a bonding layer, and the surface of the bonding layer is laid with an airgel insulation board, and the airgel insulation board is fixed on the wall through anchors, and the adjacent airgel insulation boards are filled with foam strips, Then patch it with a waterproof and weather-resistant sealant. The utility model has good fireproof performance, low thermal conductivity and excellent heat preservation effect.

Description

An ultra-low thermal conductivity fireproof steel structure building wall

technical field

The utility model belongs to the technical field of building materials, in particular to an ultra-low thermal conduction fireproof steel structure building wall.

Background technique

Based on the current reality of frequent fires in external wall thermal insulation systems, the country has strictly regulated the scope of use of organic external wall thermal insulation materials that are currently widely used, and made clear the fire ratings of external wall thermal insulation systems used in buildings Require.

At present, most cold-formed thin-walled steel structure wall systems are filled with rubber powder polystyrene particle insulation slurry, inorganic insulation mortar or other organic or inorganic plates. However, the wall filling material, the external wall insulation layer and the interior wall insulation layer material all have the disadvantage that the thermal conductivity and the combustion level cannot be combined at the same time. For example: foam boards, extruded plastic boards, polyurethane boards, etc., which have low thermal conductivity and good thermal insulation effects for the insulation layer of the insulation system, but these materials are flammable, have poor fire resistance and low safety performance. Materials with good fire performance include inorganic thermal insulation mortar, rock wool board, foamed cement board, etc., but these materials have high thermal conductivity and poor thermal insulation effect.

Utility model content

The purpose of this utility model is to solve the above-mentioned deficiencies, and provide an ultra-low thermal conduction fireproof steel structure building wall with a combustion grade of A-class non-combustible, low thermal conductivity, and excellent heat preservation effect.

In order to achieve the above purpose, the technical solution of the utility model is: an ultra-low thermal conductivity fireproof steel structure building wall, including a facing layer, a ribbed expansion net, an anti-cracking layer, a light steel keel, thermal insulation mortar, a leveling layer, Adhesive layer, airgel insulation board, anchor; the inside of the light steel keel is laid with an anti-crack layer, and the outside of the crack-resistant layer is laid with a finish layer; the inside of the light steel keel is laid with thermal insulation mortar, the The surface of the thermal insulation mortar is laid with a ribbed expansion net, the surface of the ribbed expansion net is covered with a leveling layer, the surface of the leveling layer is coated with an adhesive layer, the surface of the adhesive layer is laid with an airgel insulation board, and the air condensation The glue insulation board is fixed on the wall through anchors, the gap between adjacent airgel insulation boards is filled with foam strips, and the surface of the gap is repaired with waterproof and weather-resistant sealant.

The airgel insulation board is a nano-airgel insulation and decoration integrated board with a density of 140-250kg/m³, a combustion grade of Class A non-combustible, a thermal conductivity of 0.013-0.02w/(m.k) at 25°C, and a thickness of 20mm .

The utility model has the following advantages: the use of airgel insulation boards and reasonable matching of layers has good fire resistance, low thermal conductivity and excellent heat preservation effect; light steel keel structure is used as the main support structure, and the wall strength is high; the layer structure Simple and productive.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

detailed description

As shown in Figure 1, an ultra-low thermal conductivity fireproof steel structure building wall, including a facing layer 1, a ribbed expanded mesh 2, an anti-cracking layer 3, a light steel keel 4, thermal insulation mortar 5, a leveling layer 6, a bonding Layer 7, airgel insulation board 8, anchor 9; the inside of the light steel keel 4 is laid with an anti-crack layer 3, and the inside of the crack-resistant layer 3 is laid with a decorative layer 1; the outside of the light steel keel 4 is laid There is thermal insulation mortar 5, and the surface of the thermal insulation mortar 5 is laid with a ribbed expansion net 2, and the surface of the ribbed expansion net 2 is covered with a leveling layer 6, and the surface of the leveling layer 6 is coated with an adhesive layer 7, and the adhesive The airgel insulation board 8 is laid on the surface of the layer 7, and the airgel insulation board 8 is fixed on the wall through the anchor 9. The gap between adjacent airgel insulation boards 8 is filled with foam strips, and the surface of the gap is waterproof and weather-resistant. Sealant repair.

The airgel insulation board 8 adopts a nano-airgel insulation and decoration integrated board with a density of 140-250kg/m³, a combustion grade of Class A non-combustible, a thermal conductivity of 0.013-0.02w/(m.k) at 25°C, and a thickness of 20mm.

Claims (3)

1. a ultralow heat conduction fire preventing steel structure construction wall, it is characterised in that: include finish coat, have muscle expansion web, crack-resistant layer, lightgage steel joist, thermal insulation mortar, screed-coat, tack coat, aeroge warming plate, anchoring piece；It is laid with crack-resistant layer inside described lightgage steel joist, outside described crack-resistant layer, is laid with finish coat；It is laid with thermal insulation mortar inside described lightgage steel joist, described thermal insulation mortar surface has been equipped with muscle expansion web, described have muscle expansion web surface to be covered with screed-coat, described screed-coat surface is covered with tack coat, described tie layer surface lays aeroge warming plate, and described aeroge warming plate is fixed on body of wall by anchoring piece.

One the most according to claim 1 ultralow heat conduction fire preventing steel structure construction wall, it is characterised in that: between described aeroge warming plate is adjacent, gap foam strip is filled, and surface water-proof climate resisting fluid sealant is repaired.

One the most according to claim 1 ultralow heat conduction fire preventing steel structure construction wall, it is characterized in that: described aeroge warming plate is nanoporous aerogel heat insulation decoration integrated plate, density be 140 250kg/m, burning grade be A level do not fire, 25 DEG C time heat conductivity be 0.013 0.02w/ (m.k), thickness be 20mm.