Paper film for pouring concrete

Abstract

The utility model discloses a paper film for pouring concrete, and belongs to the technical field of concrete forming. The paper film comprises a paper film main body, wherein the paper film main body comprises a waterproof film layer, a craft paper layer, a first plastic bonding layer, a wire clamping layer, a second plastic bonding layer and an aluminum laminated film layer; and an aluminum laminated film layer is arranged on the outer side of the second plastic bonding layer. The paper film is simple in overall structure, easy to form and low in use cost, the aluminum laminated film layer can resist aging and can provide low moisture permeability for the paper film body, the craft paper layer serves as a main pressure bearing layer, the overall thickness and stiffness can be increased, the paper film is not prone to breakage, and the strength requirement in the concrete pouring and forming process can be met; the wire clamping layer is used for enhancing the performance and prolonging the service life of the paper film main body, the strength characteristic of the paper film main body can be obviously improved, and the external expansion resistance is increased, so that the paper film main body is high in strength and toughness, can be applied to building construction, and has a good market prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete molding, and more specifically to a paper film used for pouring concrete. Background Art

[0002] During the construction of wall buildings, the concrete casting formwork is generally assembled on site, and then the concrete is poured into the assembled formwork using a concrete pouring machine. After the concrete solidifies and takes shape, the concrete casting formwork is removed to obtain a concrete casting wall.

[0003] At present, the existing concrete walls may encounter the following difficulties during the pouring process: a. During the concrete pouring process, the concrete will produce a certain extrusion pressure on the formwork, which may cause the formwork itself to deform, resulting in uneven thickness and poor quality of the wall; b. During the deformation of the formwork itself, gaps are likely to appear between the formworks at the corners, causing the poured concrete to flow out of the formwork from the gaps, thereby causing concrete waste and increasing the pouring cost; c. After the pouring is completed, the disassembled formwork will inevitably have residual concrete on the surface, and the formwork needs to be repeatedly used, so it needs to be repeatedly cleaned, resulting in high subsequent cleaning and maintenance time costs. Utility Model Content

[0004] 1. Technical problems to be solved by the utility model

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a paper membrane for pouring concrete. The utility model has a simple overall structure, is easy to form, and has a low use cost. The aluminum-plated membrane layer is resistant to aging and can provide a low moisture permeability for the paper membrane body, providing a basis for concrete molding. The kraft paper layer serves as the main pressure-bearing layer, which can increase the overall thickness and stiffness, making it less likely to break and able to meet the strength requirements during concrete pouring and molding. The wire layer is used to enhance the performance and life of the paper membrane body, which can significantly improve the strength characteristics of the paper membrane body and increase the external expansion resistance, so that the paper membrane body has high strength and high toughness, can be used in building construction, and has a good market prospect.

[0006] 2. Technical solution

[0007] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0008] The utility model discloses a paper film for pouring concrete, comprising a paper film body, wherein the paper film body comprises a waterproof film layer, a kraft paper layer, a first plastic adhesive layer, a wire layer, a second plastic adhesive layer and an aluminum-plated film layer;

[0009] The outer side of the waterproof membrane layer is provided with a kraft paper layer, the outer side of the kraft paper layer is provided with a first plastic adhesive layer, the first plastic adhesive layer and the second plastic adhesive layer are bonded to each other, the wire layer is provided between the first plastic adhesive layer and the second plastic adhesive layer, and the outer side of the second plastic adhesive layer is provided with an aluminum-plated film layer.

[0010] Furthermore, the paper film body has an overall thickness of 0.3-1.0 mm and is in the shape of a long strip, which can be rolled into a cylindrical or multi-cubic column.

[0011] Furthermore, the wire layer is composed of a plurality of high-density longitudinal filaments, the width of the high-density longitudinal filaments is 2-3 mm, and the intervals between adjacent high-density longitudinal filaments are 1-2 mm.

[0012] Furthermore, the wire layer is laid along the length direction of the paper film body.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0015] The utility model has a simple overall structure, is easy to form, and has low use cost. The aluminum-plated film layer is resistant to aging, can provide a low moisture permeability for the paper film body, and provide a basis for concrete forming. The kraft paper layer serves as the main pressure-bearing layer, which can increase the overall thickness and stiffness, making it not easy to break, and can meet the strength requirements of concrete pouring and its forming process; the paper film body has a small overall volume and can be rolled into a tube for unified collection and management. When it is needed, it can be laid and unfolded and rolled into a corresponding shape. It has a small volume, light weight, easy operation, and low use cost. The wire layer is used to enhance the performance and life of the paper film body, can significantly improve the strength characteristics of the paper film body, and increase the external expansion resistance, so that the paper film body has high strength and high toughness, can be used in construction, and has good market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is the implementation state diagram of the utility model;

[0018] Figure 3 It is a cross-sectional view of the implementation state of the utility model.

[0019] In the figure: 1, paper film body; 10, waterproof film layer; 20, kraft paper layer; 30, first plastic bonding layer; 40, wire layer; 41, high-density longitudinal filaments; 50, second plastic bonding layer; 60, aluminized film layer. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0021] Example 1

[0022] from Figure 1 It can be seen that the paper membrane for pouring concrete in this embodiment includes a paper membrane body 1, which includes a waterproof membrane layer 10, a kraft paper layer 20, a first plastic adhesive layer 30, a wire layer 40, a second plastic adhesive layer 50 and an aluminum-plated membrane layer 60;

[0023] A kraft paper layer 20 is arranged on the outer side of the waterproof membrane layer 10, a first plastic adhesive layer 30 is arranged on the outer side of the kraft paper layer 20, the first plastic adhesive layer 30 and the second plastic adhesive layer 50 are bonded to each other, the wire layer 40 is arranged between the first plastic adhesive layer 30 and the second plastic adhesive layer 50, and an aluminum-plated film layer 60 is arranged on the outer side of the second plastic adhesive layer 50.

[0024] The paper film body 11 has an overall thickness of 0.3-1.0 mm and is in a long strip shape, and can be rolled into a cylindrical or multi-cubic column shape.

[0025] The wire layer 40 is composed of a plurality of high-density longitudinal filaments 41, the width of the high-density longitudinal filaments 41 is 2-3 mm, and the intervals between adjacent high-density longitudinal filaments 41 are 1-2 mm. The wire layer 40 is laid along the length direction of the paper film body 1.

[0026] The wire layer 40 is used to enhance the performance and life of the paper membrane body 1, which can significantly improve the strength characteristics of the paper membrane body 1 and increase the external expansion resistance, thereby having a positive impact on the tensile strength characteristics. The gaps between the wires can effectively improve the stability of the paper membrane body 1, and the gaps between the wires can block the penetration of resin and impurities, so that the paper membrane body 1 has high strength and high toughness, can be used in construction, and has good market prospects.

[0027] The aluminized film layer 60 is resistant to aging, provides low moisture permeability for the paper film body 1, and provides a basis for concrete molding;

[0028] The kraft paper layer 20 is used as the main pressure-bearing layer, which can increase the overall thickness and stiffness, making it not easy to break, and can meet the strength requirements of concrete pouring and molding processes; the paper film body 1 has a small overall volume and can be rolled into a tube for unified collection and management. When it is needed, it can be laid out and rolled into a corresponding shape. It has a small volume, light weight, easy operation, and low cost of use;

[0029] from Figure 2-3It can be seen that the paper film body 1 is rolled into a cylindrical shape, and the paper film body 1 is spirally wound on the inner and outer surfaces of the base layer to form a cylindrical paper mold that can be used for concrete molding. Concrete casting can be achieved by pouring concrete inside the cylindrical paper mold. The paper film body 1 can isolate the concrete inside from the base layer outside, and produce the effect of preventing the inner concrete from penetrating and preventing the base layer from adhering to the surface.

[0030] The base layer can be made of cardboard, wood or aluminum alloy plate with a certain strength and thickness. The number of turns and layers of the paper film body 1 and the material of the base layer can be adjusted according to the actual diameter and height of the concrete to be poured.

[0031] When the cylindrical paper mold is disassembled, it is only necessary to tear off the paper film body 1 on the surface of the base layer and replace it, which can greatly save the time and cost of cleaning the template;

[0032] The utility model has a simple overall structure, is easy to form, and has a low cost of use. The aluminum-plated film layer 60 is resistant to aging, can provide a low moisture permeability for the paper film body 1, and provide a basis for concrete forming. The kraft paper layer 20 serves as the main pressure-bearing layer, which can increase the overall thickness and stiffness, making it not easy to break, and can meet the strength requirements of concrete pouring and its forming process; the paper film body 1 has a small overall volume and can be rolled into a tube for unified collection and management. When it is needed, it can be laid and unfolded and rolled into a corresponding shape. It has a small volume, light weight, easy operation, and low cost of use; the wire layer 40 is used to enhance the performance and life of the paper film body 1, can significantly improve the strength characteristics of the paper film body 1, and increase the external expansion resistance, so that the paper film body 1 has high strength and high toughness, can be used in construction, and has a good market prospect.

[0033] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A paper membrane for pouring concrete, comprising a paper membrane body (1), characterized in that: The paper film body (1) comprises a waterproof film layer (10), a kraft paper layer (20), a first plastic adhesive layer (30), a wire layer (40), a second plastic adhesive layer (50) and an aluminized film layer (60); The outer side of the waterproof membrane layer (10) is provided with a kraft paper layer (20), the outer side of the kraft paper layer (20) is provided with a first plastic adhesive layer (30), the first plastic adhesive layer (30) and the second plastic adhesive layer (50) are bonded to each other, the wire layer (40) is provided between the first plastic adhesive layer (30) and the second plastic adhesive layer (50), and the outer side of the second plastic adhesive layer (50) is provided with an aluminum-plated film layer (60).

2. A paper film for pouring concrete according to claim 1, characterized in that: The paper film body (1) (1) has an overall thickness of 0.3-1.0 mm and is in the shape of a long strip, which can be rolled into a cylindrical or polygonal column.

3. A paper film for pouring concrete according to claim 1, characterized in that: The wire layer (40) is composed of a plurality of high-density longitudinal filaments (41), the width of the high-density longitudinal filaments (41) is 2-3 mm, and the interval between adjacent high-density longitudinal filaments (41) is 1-2 mm.

4. The paper film for pouring concrete according to claim 1, characterized in that: The wire layer (40) is laid along the length direction of the paper film body (1).

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