Lightweight thermal-insulation engineering felt

Abstract

The invention discloses a light heat-preservation engineering felt which comprises a fabric layer, a flame-retardant layer is attached to the interior of the fabric layer, an adhesive layer is attached to one side of the flame-retardant layer, a reinforcing layer is arranged on one side of the adhesive layer, glass fibers are arranged in the reinforcing layer, and reinforcing steel wire meshes are fixed to the two sides of the reinforcing layer. Foaming cement is arranged on one side of the reinforcing layer; according to the lightweight thermal-insulation engineering felt, through cooperative use of the fabric layer, the flame-retardant layer, the adhesive layer and the foaming cement, the flame-retardant layer can inhibit or delay flame spreading and improve the fireproof safety of the material, the prefabricated engineering felt is laid on the working condition surface during use and is directly sprayed with water to be hardened and formed, and meanwhile, a foaming agent is added into the foaming cement, so that the thermal-insulation performance of the engineering felt is improved. The foamed cement can release gas to foam after meeting water, so that the foamed cement can be porous after being hardened, the product is lighter, meanwhile, the good heat preservation effect is ensured, the foamed cement is suitable for various scenes, the energy efficiency can be improved, and the building safety can be enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering felts, and particularly to a lightweight and heat-insulating engineering felt. Background Technique

[0002] An engineering felt is a soft fabric pre-impregnated with powders such as cement. When it encounters water, it will undergo a hydration reaction and harden into a very thin waterproof and fireproof concrete composite layer. The pre-made engineering felt is laid on the working surface and directly watered to harden and form. It has good flexibility before watering and hardening, and after hardening, it forms a thin, water-resistant, fire-resistant, durable and excellent mechanical property hardening material layer. And it can be cut and assembled in multiple sizes according to the actual requirements of the project.

[0003] In current ordinary cement blankets or ordinary engineering felts, only ordinary cement powder is filled and laid in the ditch slope protection. After watering and hardening, it can be used for water conservancy projects, etc. They are relatively heavy and the scope of application is limited. Therefore, this application provides a lightweight and heat-insulating engineering felt to meet the needs. Summary of the Invention

[0004] The purpose of the present invention is to provide a lightweight and heat-insulating engineering felt to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A lightweight and heat-insulating engineering felt, including a fabric layer, a flame retardant layer is attached to the inside of the fabric layer, an adhesive layer is attached to one side of the flame retardant layer, a reinforcing layer is provided on one side of the adhesive layer, glass fibers are provided inside the reinforcing layer, reinforcing steel wire meshes are fixed on both sides of the reinforcing layer, and foamed cement is provided on one side of the reinforcing layer.

[0006] Preferably, the flame retardant layer is composed of magnesium hydroxide material, and the flame retardant layer is closely attached to the fabric layer.

[0007] Preferably, the reinforcing steel wire meshes are arranged on the upper and lower sides of the reinforcing layer, and the reinforcing steel wire meshes are symmetrically arranged on the upper and lower sides of the reinforcing layer.

[0008] Preferably, a foaming agent is added to the foamed cement, and the reinforcing layer is arranged on the upper and lower sides of the foamed cement.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. The lightweight thermal insulation engineering felt, through the combined use of a fabric layer, a flame retardant layer, an adhesive layer and foamed cement, the flame retardant layer can inhibit or delay the spread of fire, improve the fire safety of the material. When in use, the prefabricated engineering felt is laid on the working surface and directly watered to harden and form. At the same time, a foaming agent is added to the foamed cement, which can release gas and foam when encountering water. In this way, the foamed cement can be porous after hardening, making the product lighter in weight and ensuring good thermal insulation effect. It is applicable to various scenarios, can improve energy efficiency and enhance building safety;

[0011] 2. The lightweight thermal insulation engineering felt, through the setting of a reinforcing layer, glass fiber and a reinforcing steel wire mesh, the reinforcing steel wire mesh is woven from high-strength metal wires, which can significantly improve the tensile strength of the engineering felt and prevent the material from being torn or deformed by external forces during construction or use. The glass fiber has high strength and flexibility, making the engineering felt have good flexibility before watering and hardening. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0013] Figure 2 is a schematic diagram of the layered structure of the present invention;

[0014] Figure 3 is a schematic diagram of the structure of the flame retardant layer of the present invention;

[0015] Figure 4 is a schematic diagram of the structure of the reinforcing layer of the present invention.

[0016] In the figure: 1, fabric layer; 2, flame retardant layer; 3, adhesive layer; 4, reinforcing layer; 5, glass fiber; 6, reinforcing steel wire mesh; 7, foamed cement. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1-4, the present invention provides a technical solution: a lightweight thermal insulation engineering felt, including a fabric layer 1, with a flame retardant layer 2 attached inside the fabric layer 1. The flame retardant layer 2 is composed of magnesium hydroxide material and is closely attached to the fabric layer 1. The flame retardant layer 2 can inhibit or delay the spread of fire, improving the fire safety of the material. On one side of the flame retardant layer 2, there is an adhesive layer 3. On one side of the adhesive layer 3, there is a reinforcing layer 4. Inside the reinforcing layer 4, there is glass fiber 5. On both sides of the reinforcing layer 4, there are fixed reinforcing wire meshes 6. The reinforcing wire meshes 6 are arranged on the upper and lower sides of the reinforcing layer 4 and are symmetrically arranged up and down on the reinforcing layer 4. The reinforcing wire meshes 6 are woven from high-strength metal wires, which can significantly improve the tensile strength of the engineering felt and prevent the material from being torn or deformed by external forces during construction or use. The glass fiber 5 has high strength and flexibility, making the engineering felt have good flexibility before watering and hardening. On one side of the reinforcing layer 4, there is foamed cement 7. A foaming agent is added to the foamed cement 7. The reinforcing layer 4 is arranged on the upper and lower sides of the foamed cement 7. The foamed cement 7 is added with a foaming agent, which can release gas and foam when encountering water. In this way, the foamed cement 7 can be porous after hardening, making the product lighter in weight and ensuring good thermal insulation effect. It is applicable to various scenarios, can improve energy efficiency and enhance building safety.

[0019] Working principle: When using this lightweight thermal insulation engineering felt, first, the glass fiber 5 has high strength and flexibility, making the engineering felt have good flexibility before watering and hardening. Second, when in use, the prefabricated engineering felt is laid on the working surface and directly watered to harden and form. At the same time, a foaming agent is added to the foamed cement 7, which can release gas and foam when encountering water. In this way, the foamed cement 7 can be porous after hardening, making the product lighter in weight and ensuring good thermal insulation effect. The flame retardant layer 2 can inhibit or delay the spread of fire, improving the fire safety of the material. Just like this, the use process of this lightweight thermal insulation engineering felt is completed.

[0020] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0021] The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lightweight heat-insulating engineering felt, comprising a fabric layer (1), characterized in that: The fabric layer (1) is laminated with a flame retardant layer (2), one side of the flame retardant layer (2) is laminated with an adhesive layer (3), one side of the adhesive layer (3) is provided with a reinforcing layer (4), the reinforcing layer (4) is provided with glass fiber (5), both sides of the reinforcing layer (4) are fixed with reinforcing steel wire mesh (6), and one side of the reinforcing layer (4) is provided with foamed cement (7).

2. A lightweight thermal insulation engineering felt according to claim 1, characterized in that: The flame retardant layer (2) is made of a magnesium hydroxide material, and the flame retardant layer (2) is in close contact with the fabric layer (1).

3. A lightweight thermal insulation engineering felt according to claim 1, characterized in that: The reinforcing steel wire mesh (6) is arranged on the upper and lower sides of the reinforcing layer (4), and the reinforcing steel wire mesh (6) is symmetrically arranged on the upper and lower sides of the reinforcing layer (4).

4. A lightweight thermal insulation engineering felt according to claim 1, characterized in that: A foaming agent is added into the foamed cement (7), and the reinforcing layer (4) is arranged on the upper and lower sides of the foamed cement (7).

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