CN-117922147-B - Preparation method of water-curable anti-sticking waterproof cushion layer

Abstract

A method for preparing a water-curable anti-adhesive waterproof cushion layer comprises the following steps of S1, paving a permeable layer which is a 3D three-dimensional net-shaped fiber fabric, S2, filling a curing layer, filling a cement mixture into meshes of the permeable layer, wherein the cement mixture comprises cement, aggregate and a coagulant, S3, covering the anti-adhesive layer, covering reactive sand or a reaction coating or a water-soluble film on the upper surface of the permeable layer to form an anti-adhesive layer, S4, covering a healing layer, gluing the upper surface of the anti-adhesive layer to form a healing layer, S5, covering a waterproof layer, covering a waterproof material on the upper surface of the healing layer to form a waterproof layer, S6, puncture-sewing, and puncture-sewing the permeable layer, the cement mixture, the anti-adhesive layer, the healing layer and the waterproof layer to form an integral structure by adopting a needling technology. The method innovatively adopts the whole needling technology, so that the adhesiveness and the solidity among all layers are increased, and the backing is ensured not to fall off.

Inventors

• HUANG BAOLIANG
• XUE XIAOYUN

Assignees

• 佩普蓝(济南)新材料有限公司

Dates

Publication Date

20260505

Application Date

20240312

Claims (10)

1. 1. The preparation method of the water-curable anti-sticking waterproof cushion layer is characterized by comprising the following specific steps of: S1, paving a permeable layer, wherein the permeable layer is a 3D mesh fiber fabric; s2, filling a curing layer, and filling the cement mixture into mesh openings of the permeable layer to form the curing layer; the cement mixture comprises cement, aggregate and a coagulant; S3, covering an anti-adhesive layer, and covering reactive sand, a reactive coating or a water-soluble film on the upper surface of the permeable layer to form the anti-adhesive layer; S4, covering the healing layer, and coating glue on the upper surface of the anti-adhesive layer to form the healing layer; S5, covering a waterproof layer, and covering a waterproof material on the upper surface of the healing layer to form the waterproof layer; S6, puncture stitching, namely, puncture stitching the permeable layer, the cement mixture, the anti-adhesive layer, the healing layer and the waterproof layer by using fiber wires by adopting a needling technology, so as to form an integral structure.
2. 2. The method for preparing a water-curable anti-adhesive waterproof cushion according to claim 1, wherein in step S1, the mesh diameter of the permeable layer is between 4mm and 10mm, and the thickness of the permeable layer is between 3mm and 30 mm.
3. 3. The method for preparing a water-curable reverse-adhesive waterproof cushion according to claim 1, wherein in step S2, a vibration device is used to uniformly fill the cement mixture in the permeable layer.
4. 4. The method for producing a water-curable anti-adhesive waterproof cushion according to claim 1, wherein in step S3, the thickness of the anti-adhesive layer is between 0.01mm and 0.5 mm.
5. 5. The method of making a water-curable reverse adhesive waterproof underlayment according to claim 1, wherein the reactive sand comprises silica.
6. 6. The method of making a water-curable reverse adhesive waterproof backing layer according to claim 1, wherein the reactive coating comprises an acrylic emulsion.
7. 7. The method of making a water-curable reverse adhesive waterproof backing layer of claim 1, wherein the water-soluble film comprises polyvinyl alcohol.
8. 8. The method of claim 1, wherein in step S4, the healing layer is made of one of pressure sensitive adhesive, butyl adhesive and asphalt adhesive.
9. 9. The method for preparing a water-curable anti-sticking waterproof cushion layer according to claim 1, wherein in step S5, the waterproof layer is made of a polymer waterproof material.
10. 10. The method for preparing a water-curable anti-sticking waterproof cushion layer according to claim 1, wherein the thickness of the waterproof layer is between 0.01mm and 1 mm.

Description

Preparation method of water-curable anti-sticking waterproof cushion layer Technical Field The invention relates to the technical field of geosynthetics, in particular to a preparation method of a water-curable anti-sticking waterproof cushion layer. Background The concrete waterproof cushion layer has the characteristics of simple and quick construction, high strength, long service life and the like, and has been widely applied to projects such as ditches, revetments, ponds, impounding reservoirs, wetlands, temporary roads and the like. The concrete waterproof cushion has a simpler structural hierarchy, the middle cement mixture is knitted in advance to form a whole, then an anti-seepage geomembrane is stuck at the bottom, for example, patent number CN201720445866.2 discloses a waterproof cushion of a three-dimensional cement-based geotechnical composite material, the cement mixture and front geotechnical cloth are needled and combined into a whole in advance, and then the waterproof geomembrane is glued by hot melt glue. However, such waterproof mats have the following problems: (1) The adhesive technology has certain defects, if the concrete waterproof cushion layer is always in water or in a humid environment, the viscosity of the adhesive can be reduced, so that the backing of the bottom layer structure is fallen off, and the service life and the service effect of the product are affected; (2) And as the cement cannot completely prevent underwater seepage after solidification, once the seepage-proof geomembrane falls off again, the bottom structure cannot realize complete seepage prevention. Disclosure of Invention In order to solve the technical problems in the background technology, the invention provides a preparation method of a water-curable anti-sticking waterproof cushion layer, and perfect combination of rigid waterproof and flexible waterproof is realized. The technical scheme of the invention is as follows: A preparation method of a water-curable anti-sticking waterproof cushion layer comprises the following specific steps: S1, spreading a permeable layer which is a 3D mesh fiber fabric; One side of the cloth is provided with a base cloth, the other side is provided with meshes, and the middle fiber wires are connected. The base cloth can be made of PET, PP, glass fiber and other materials, so that the material leakage can be prevented, and the water infiltration is facilitated. The mesh size of the permeable layer is generally designed to be between 4mm and 10mm, and the thickness of the permeable layer is 3mm to 30 mm. This size is suitable for the general needs, but of course, thicker or thinner permeation layers can be produced, and the mesh aperture can be correspondingly increased or decreased, which is not limited by the invention. S2, filling a curing layer, and filling the cement mixture into mesh openings of the permeable layer to form the curing layer; the cement mixture comprises cement, aggregate and a coagulant, the cement mixture is injected from one side of the mesh during filling, the base cloth of the permeable layer can prevent the cement mixture from flowing out, and the cement mixture is uniformly filled in the permeable layer by adopting a vibration device. S3, covering an anti-adhesive layer, and covering reactive sand, a reactive coating or a water-soluble film on the upper surface of the permeable layer to form the anti-adhesive layer; The anti-adhesive layer mainly reacts with the solidified cement mixture, so that the adhesiveness of the cement mixture and the anti-adhesive layer is enhanced, and the reaction is more thorough. The thickness of the anti-adhesive layer is between 0.01mm and 0.5 mm. When reactive sand is used, silica may be used. When a reactive coating is employed, an acrylic emulsion may be used. When a water-soluble film is used, polyvinyl alcohol may be used. S4, covering the healing layer, and coating glue on the upper surface of the anti-adhesive layer to form the healing layer; The healing layer material is one of pressure sensitive adhesive, butyl adhesive or asphalt adhesive. S5, covering a waterproof layer, and covering a waterproof material on the upper surface of the healing layer to form the waterproof layer; the thickness of the waterproof layer is between 0.01mm and 1 mm. The waterproof layer is made of a high-molecular waterproof material. For example HDPE, LDPE, LLDPE, PVC, EPDM, TPO and the like are used as waterproof layers, so that water can be effectively prevented from penetrating out of the waterproof cushion layer in the hydration process, and the hydration effect and aging are affected. Meanwhile, the water consumption in the hydration process is reduced, and water resources are saved. Can also play a role in storing water to a certain extent, and better accelerate the hydration process. In addition, the adoption of the high polymer waterproof material also simplifies the construction process, can directly use welding equipment