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Composite waterproof board and production technology thereof

A production process and technology of waterproof board, applied in the direction of synthetic resin layered products, layered products, lamination, etc., can solve the problems of serious water leakage, water channeling, etc., to save energy costs, prevent water channeling, and facilitate replacement. Effect

Inactive Publication Date: 2012-05-02
SICHUAN WEIDUN JIANGXIN CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Nowadays, serious leakage often occurs in tunnel construction. One of the main reasons is that after the waterproof board is damaged in subsequent construction or during the service period, water passes through the waterproof board, and water channeling occurs between the waterproof layer and the secondary lining concrete, resulting in water leakage. The phenomenon is getting worse

Method used

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  • Composite waterproof board and production technology thereof
  • Composite waterproof board and production technology thereof
  • Composite waterproof board and production technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] combine Figure 7 , Figure 8 . Figure 7 It is a sectional view of the composite waterproof board of the present invention; Figure 8 It is a plan view of the composite waterproof board with block bonding parts of the present invention.

[0043] as the picture shows. The composite waterproof board includes a waterproof board and a geotextile, the geotextile is located on one surface of the waterproof board, the geotextile and the waterproof board have evenly distributed and discontinuous bonding parts, and the bonding parts have evenly arranged suspension fixtures. On the other surface of the waterproof board, there is a self-adhesive layer made of rubber-modified asphalt coating compound, and the surface of the self-adhesive layer is compounded with an isolation film.

[0044] In this example, the hanging and fixing parts are made of cotton fiber braid, the width is 15-25mm, the length is 200-300mm, the tensile strength is ≥300N / 10mm, and the number of fixing part...

Embodiment 2

[0050] combine Figure 7 , Figure 9 . Figure 7 It is a sectional view of the composite waterproof board of the present invention; Figure 9 It is a plan view of the composite waterproof board with strip bonding part of the present invention.

[0051] as the picture shows. The difference between this example and Example 1 lies in the shape of the adhesive part. In this example, the adhesive part is an adhesive strip arranged in parallel along the length direction of the waterproof board, that is, a longitudinal adhesive strip, and the hanging fixing parts are evenly arranged on the strip-shaped adhesive part. , due to the hydrophobic and drainage channels reserved in the strip-shaped bonding part, the further drainage requirements are met. Other structures are with embodiment 1.

[0052] Similarly, the strip-shaped adhesive part can also be arranged vertically along the length direction of the waterproof board, that is, the transverse adhesive strip, and other structures...

Embodiment 3

[0056] combine figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 with Image 6 .

[0057] as the picture shows.

[0058] The production process flow of the present invention is divided into four stages: the first stage is raw material preparation and extrusion molding, the second stage is preheating and bonding, the third stage is self-adhesive rubber coating and film covering, and the fourth stage is Finished products for rolls.

[0059] specifically is:

[0060] 1) The waterproof sheet is extruded from the main raw material through the extruder, and then extruded by the pressure roller of the extrusion device to form the main sheet of the waterproof sheet, and then sent to the cooling roller through the conveying supporting device.

[0061] 2) Preheating the fixed-point position set by the main body sheet through the hot air preheating device 2; causing one side of the main body sheet to be heated and slightly melted. The melting width of the block bonding pr...

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Abstract

The invention discloses a composite waterproof board and a production technology thereof. The composite waterproof board comprises a geotextile arranged on a surface of a waterproof board, wherein the geotextile and the waterproof board have a uniformly distributed and discontinuous adhesive part, the adhesive part is provided with a uniformly distributed and suspended fixed part; and the other surface is provided with a self-stick layer prepared through clading and a surface isolation membrane of the self-stick layer. The production technology comprises the following steps of: preparing raw materials, performing extrusion moulding; preheating and bonding; coating a self-stick rubber material and laminating; and rolling to obtain the finished product, wherein in the preheating and bonding step, a program is utilized to control a retractable compression roller to laminate the preheated waterproof board which is overlapped with the geotextile and form the discontinuous adhesive part. The adhesive part of the geotextile and the waterproof board is uniformly distributed, a uniform draining channel is reserved to meet the further drainage requirement; and the composite waterproof board can be embedded in the existing waterproof board production line, waterproof boards with different structures can be conveniently produced according to needs, preheating and bonding are performed continuously on the surface of the compression roller, the product has high quality and is more stable, and energy is saved.

Description

technical field [0001] The invention belongs to the field of design and manufacture of building materials, in particular to a waterproof material for tunnels in the railway, subway and highway industries and a production process thereof. Background technique [0002] In tunnel waterproofing and drainage works, the waterproofing layer is fixed on the primary support. A layer of non-woven fabric is pre-laid as a buffer layer, which mainly has the functions of protecting the waterproof layer and hydrophobicity. Since the non-woven fabric needs to be laid in advance to form an independent buffer layer, and then the waterproof board is laid on the non-woven buffer layer, the construction is more complicated. Complex and long construction period. Therefore, a composite waterproof board with non-woven fabric completely bonded to the waterproof board has appeared on the market. However, this composite waterproof board is made of a non-woven buffer layer and the main waterproof boar...

Claims

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Application Information

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IPC IPC(8): E21D11/38B32B27/12B32B37/15B32B37/06B32B37/10
Inventor 何梁周林金永峰胡慰儒张晶
Owner SICHUAN WEIDUN JIANGXIN CONSTR CO LTD
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