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Waterproof geotextile is a type of geosynthetic waterproof coating made of polyethylene as a waterproof substrate and geotextile.

When non-expandable damage causes water leakage, such as cracks or problematic joints, the system you use is an external waterstop, and the waterproof barrier is located in the external part above the fault area.

Composite geomembrane is widely used in irrigation projects and is a new type of anti-permeability material used to treat roadbed diseases. Due to its excellent anti-permeability, excellent frost resistance, convenient structure and low engineering cost, it is expected to be widely used in road disease management in the future.

Geotextile is a protective layer of composite geomembrane to protect the impermeable layer from damage.

The composite geomembrane is composed of one layer of geotextile and one layer of hdpe geomembrane or two layers of hdpe geomembrane. The geomembrane is a layer of hdpe film. What is the difference between the two? Geotextiles only need thermal fusion materials, and composite geotextiles need stitched geotextiles.

The purpose of geomembrane is to use its anti-permeability effect. Geomembrane should be impermeable to the molecular structure and manufacturing process. However, due to the unevenness and defects in manufacturing, the commonly used geomembrane must not leak. It's just that it is relatively difficult to permeate and what is more important is whether the geomembrane can maintain its anti-seepage performance under the action of long-term water head when it contacts the actual soil (or other materials). Due to the uneven contact surface, rough soil particles, large local deformation of the soil, etc., the geomembrane may be broken or torn under the action of high water head, and its anti-seepage performance will be lost or weakened. Therefore, corresponding anti-seepage tests are also required.