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.
In order to effectively improve the construction quality of composite geomembrane, construction quality management is required, and quality management is generally guaranteed from two aspects. One is to ensure the quality of raw materials, and the other is to ensure the quality of the construction process.
Composite geomembrane is a composite impermeable material, woven or non-woven fabric is used as reinforcement material, and polyethylene is used as impermeable material. Most of the materials are one cloth and one film, and two cloth and one film. Laying impermeable membrane procedure: When laying the impermeable membrane, please make sure that there is no gap in the corner. If there are gaps, they should be filled in time during construction, and the laying order should be determined according to the specific conditions of the moisture content of the laying site. If there are pores, the air should be vented at the air bubble, and the anti-permeable membrane at the vent should be cleaned for subsidies.
Waterproof geotextile is actually a composite geomembrane, but two names for a product. Waterproof geotextiles are divided into one fabric and one membrane, two fabrics and one membrane, and multiple fabrics and multiple membranes.
When we choose farmland anti-seepage materials, we usually use relatively single anti-seepage materials such as rockfill and concrete. However, the choice of this material cannot achieve the effect of farmland anti-seepage work as expected, and its durability is relatively poor. However, in recent years, China has also made new developments in the development of impermeable materials, and a new impermeable composite material-waterproof geotextile has emerged.
In which fields can the anti-seepage geomembrane be used, I will give you a detailed analysis today.
