CN2581572Y - Composite sandwich fire-proof wall board - Google Patents

Abstract

The utility model belongs to the technical field of building materials, and is a composite cored type firewall body plate. Its main features are: the wall panel has a high-strength protective surface layer, and a lightweight thermal insulation core layer is arranged inside the surface layer, and a fiber layer is attached between the surface layer and the core layer, and the protective layer is made of chlorine oxygen Magnesium cement or magnesium oxysulfide cement is used as the cementitious material, and it is made by adding a small amount of inert stone powder, light powder and modified materials; the light heat insulation core layer is made of hollow glass spheres to form the floating bead insulation core, and also It can be made of ceramsite and perlite mixed materials; the fiber layer is made of glass fiber mesh cloth to increase strength and fire resistance. In terms of strength, the impact strength of the board can reach 18kj/m ² . It is not easy to be damaged during construction, and the surface layer is not easy to scratch or cause depressions due to collision. It can directly hang wall cabinets, air conditioners, and even heavier objects. A 9-11cm thick wall is composed of a 10-18mm thick single-layer board and rock wool , The fire resistance limit can reach more than 3 to 4 hours. Compared with the prior art, the board has the advantages of good overall performance, light weight, good fire resistance and high strength.

Description

Composite cored firewall body plate

Technical field:

The utility model belongs to the technical field of building materials, and is a composite cored type firewall body plate.

Background technique:

In the known technology, gypsum boards are usually used for light steel keel internal partition boards. Due to the low strength of gypsum boards, they are easy to break and damage during installation and use, and cannot directly hang heavy objects. They have poor water resistance and fire resistance. The performance is not high.

Invention content:

The purpose of the utility model is to provide a composite cored firewall body plate with good overall performance, light weight, high strength, good water resistance and fire resistance.

The technical solution adopted to achieve the purpose of this utility model is: the wall panel has a high-strength protective surface layer, a light-weight thermal insulation core layer is arranged in the surface layer, and a fiber layer is attached between the surface layer and the core layer. Among them, the protective surface layer is made of magnesium oxychloride cement or magnesium oxysulfide cement as the cementitious material, and is mixed with a small amount of inert stone powder, light powder and modified materials; the lightweight thermal insulation core layer is made of hollow glass spheres To form the core of floating beads, the heat preservation core can also be made of ceramsite and perlite mixed materials; the fiber layer is made of glass fiber mesh cloth.

Composite cored fire wall panels manufactured according to the above scheme have much higher service performance than gypsum boards, and in terms of strength, their impact strength can reach 18kj/m2. It is not easy to be damaged during construction, and the surface layer is not easy to scratch or sag caused by collision. It can directly hang wall cabinets, air conditioners, and even heavier objects, and there is no need for keels inside the wall panels to reinforce the hanging parts. It has been tested as a class A non-combustible material. A 9-11cm thick wall is composed of 10-18mm thick single-layer boards and rock wool. The fire resistance limit can be more than 3-4 hours, which can meet different fire protection requirements. And soaked in water for 40 days without foaming, peeling and delamination. Using this board, it can be nailed, sawed, planed, and can be excavated at will for junction boxes, switch boxes and water pipe inlets and outlets, and the installation and construction are very convenient. The board is not only suitable for the body board of the firewall, but also can be used as the fire protection layer of high-rise buildings, ventilation ducts and cable ducts.

Below utilize accompanying drawing to further describe embodiment of the present utility model.

Description of drawings:

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

Detailed ways:

Referring to Fig. 1, the composite cored type firewall body panel of the present utility model has a high-strength protective surface layer 1, and a light-weight thermal insulation core layer 2 is arranged in the surface layer, between the surface layer and the core layer A fiber layer 3 is attached, wherein the protective layer 1 is made of magnesium oxychloride cement or magnesium oxysulfide cement as the cementitious material, and is mixed with a small amount of inert stone powder, light powder and chlorine-based materials; the light powder is made of The most popular is wood fiber powder, and the modified materials use water-resistant agents, heat-regulating agents and stabilizers. The floating bead insulation core used in the lightweight thermal insulation core layer 2 is a lightweight hollow glass sphere extracted from waste—fly ash. Because the inside of the floating bead is semi-vacuum, it can withstand high temperatures of 1400°C and the ball wall is thick. Has high strength and fire resistance. The insulation core layer can also be made of ceramsite and perlite mixed materials. The ratio of ceramsite and perlite is 1:4, so that the perlite can be used to improve the insulation effect, and the ceramsite can be used to improve the core strength. At the same time, a new type of fiber material with high strength and good fire resistance-glass fiber mesh cloth is used to increase the strength. It is formed once and extruded with the protective surface layer at the same time. After sanding the surface, it can be made into a composite cored firewall body board with light weight, high fire performance, much higher strength than gypsum board, and uniform thickness.

Claims (6)

1, a kind of compound core pattern firewall body board that adds, it is characterized in that: this ash wall body plate has high-intensity protection surface layer, is provided with the light heat-insulating sandwich layer in the surface layer, is attached with fibrage between surface layer and the sandwich layer.

2, the compound core pattern firewall body board that adds according to claim 1 is characterized in that: the protection surface layer is to do cementitious material by magnesia oxychloride cement or magnesium oxysulfide concrete, and mixes a small amount of inertia stone flour, lightweight powder and multiple material modified formation.

3, the compound core pattern firewall body board that adds according to claim 1 and 2 is characterized in that: what the lightweight powder adopted is wood fiber powder, material modified employing be water repellent agent, transfer thermit powder and stabilizing agent.

4, the compound core pattern firewall body board that adds according to claim 1 is characterized in that: the light heat-insulating sandwich layer adopts hollow glass spheroid formation to float different insulation core.

5, the compound core pattern firewall body board that adds according to claim 1, it is characterized in that: the light heat-insulating sandwich layer can adopt haydite, perlite mixed material to make, and wherein haydite and perlitic proportioning are 1: 4.

6, the compound core pattern firewall body board that adds according to claim 1 is characterized in that: fibrage adopts fiberglass gridding cloth.

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