A self-adhesive composite geomaterial

Abstract

This utility model belongs to the field of geotechnical materials technology, and specifically relates to a self-adhesive composite geomaterial. This self-adhesive composite geomaterial includes a geotextile and a geomembrane bonded together, characterized in that: a cellophane layer is laminated to the surface of the geomembrane, the cellophane layer being composed of an adhesive layer and an oil-paper surface layer. The beneficial effects of this utility model are: reduced slippage during construction, improved project quality, and easier construction. Products with small leaks can be quickly repaired and filled, improving work efficiency and reducing waste.

Description

Technical Field

[0001] This utility model belongs to the field of geotechnical materials technology, and specifically relates to a self-adhesive composite geotechnical material. Background Technology

[0002] Geotextile-membrane composites are geosynthetic materials made by laminating geotextiles (such as needle-punched geotextiles and bentonite waterproof blankets) with polymer membranes (such as HDPE and LDPE membranes) through calendering or hot-melt bonding. They are a type of composite seepage control and drainage material, mainly used in water conservancy, transportation, construction engineering, and environmental protection projects. This material combines the drainage performance of geotextiles with the barrier properties of geomembranes, featuring tear resistance, puncture resistance, a high coefficient of friction, and strong deformation adaptability. It can disperse stress and improve structural stability. The geotextile layer can replace traditional granular protective layers while also serving as a drainage channel; the geomembrane layer achieves continuous seepage control through hot welding or overlapping processes.

[0003] However, existing geotextile-membrane composite geotextiles are prone to slippage during construction due to wind or other factors, which reduces project quality and hinders construction. Furthermore, when pinholes appear in geotextile-membrane composite geotextiles, repairing these holes requires sufficiently strong adhesion, water resistance, crack resistance, and cold resistance, while also being easy to repair and construct. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a self-adhesive composite geomaterial.

[0005] This utility model is achieved through the following technical solution: A self-adhesive composite geomaterial includes a geotextile and a geomembrane bonded together, characterized in that: a cellophane layer is bonded to the surface of the geomembrane, the cellophane layer being composed of an adhesive layer and an oil paper surface layer.

[0006] The surface of the geotextile is bonded with a repair geomembrane through an adhesive layer, and the surface of the repair geomembrane is bonded with a repair geotextile.

[0007] The beneficial effects of this invention are: it reduces slippage during construction, improves project quality, and facilitates construction. Products with minor defects can be quickly repaired and filled, improving work efficiency and reducing waste. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings.

[0009] Appendix Figure 1 This is a schematic diagram of the structure of this utility model; Appendix Figure 2 This is a schematic diagram of the repair structure of this utility model; In the diagram, 1 is geotextile, 2 is geomembrane, 3 is cellophane layer, 4 is adhesive layer, 5 is oil paper surface layer, 6 is repair geomembrane, and 7 is repair geotextile. Detailed Implementation

[0010] The attached figure illustrates a specific embodiment of this utility model. This embodiment includes a geotextile 1 and a geomembrane 2 bonded together. A cellophane layer 3 is laminated to the surface of the geomembrane 2, and the cellophane layer 3 is composed of an adhesive layer 4 and an oil-paper surface layer 5. A repair geomembrane 6 is laminated to the surface of the geotextile 1 via the adhesive layer 4, and a repair geotextile 7 is laminated to the surface of the repair geomembrane 6.

[0011] The self-adhesive composite geotextile of this invention first combines geotextile 1 and geomembrane 2. One side of the geomembrane 2 is then bonded to a cellophane layer 3, forming an adhesive composite membrane. During use, the cellophane layer 5 is peeled off, leaving the adhesive composite membrane side for construction. The adhesive layer facilitates bonding with other materials, preventing slippage due to wind or other factors, thus improving project quality and construction efficiency. For products with small leaks, a piece larger than the leak area is cut, the cellophane layer 5 is peeled off, and the adhesive layer 4, repair geomembrane 6, and repair geotextile 7 are bonded together to the leaking side of the geotextile 1. This facilitates repair and construction, reducing material waste, costs, and losses. Repairs using the same material have sufficient adhesion, are water-resistant, crack-resistant, and cold-resistant, simplifying repair work. Rapid repair and filling are possible, improving work efficiency.

Claims

1. A self-adhesive composite geomaterial, comprising a geotextile (1) and a geomembrane (2) bonded together, characterized in that: The surface of the geomembrane (2) is coated with a cellophane layer (3), which is composed of an adhesive layer (4) and an oil paper surface layer (5).

2. The self-adhesive composite geomaterial according to claim 1, characterized in that: The surface of the geotextile (1) is bonded with a repair geomembrane (6) through an adhesive layer (4), and the surface of the repair geomembrane (6) is bonded with a repair geotextile (7).

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