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What Is the Difference Between Geotextile And Geomembrane?

Geotextile, as the name implies, is made of non-woven fabric. It is mainly used to reinforce the foundation. Geomembrane, made of high-density polyethylene, is mainly used for anti-seepage.

The combination of the two is a composite geomembrane, which is divided into one cloth and one membrane and two cloths and one membrane, with stronger reinforcement and anti-seepage performance. Geotextile, also known as geotextile, is a permeable geosynthetic material made of synthetic fibers by needle punching or weaving. The finished product is in the shape of cloth, generally 4-6 meters wide and 50-100 meters long. Geotextiles are divided into woven geotextiles and non-woven geotextiles.

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What Is the Advantage of Geotextile?

Geotextiles have better filtering, drainage, isolation, reinforcement, anti-seepage and protection functions. They are light weight, high tensile strength, good permeability, high temperature resistance, anti-freezing, aging resistance and corrosion resistance. Geomembrane, geomembrane at the construction site uses plastic film as the anti-seepage base material and is composited with non-woven fabrics. Its anti-seepage performance mainly depends on the anti-seepage performance of the plastic film.

The Main Material of Geomembrane

At present, the plastic films used for anti-seepage at home and abroad mainly include polyvinyl chloride (PVC), polyethylene (PE), and EVA (ethylene/vinyl acetate copolymer). They are a kind of polymer chemical flexible material with low specific gravity, strong extensibility, high adaptability to deformation, corrosion resistance, low temperature resistance, and good antifreeze performance. Its main mechanism is to use the impermeability of plastic film to block the leakage channel of earth dam, and to withstand water pressure and adapt to the deformation of dam body with its large tensile strength and elongation;

What is Composite Geomembrane

Non-woven fabric is also a kind of polymer short fiber chemical material. It has high tensile strength and elongation through needle punching or hot bonding. After it is combined with plastic film, it not only increases the tensile strength and puncture resistance of plastic film, but also increases the friction coefficient of contact surface due to the rough surface of non-woven fabric, which is conducive to the stability of composite geomembrane and protective layer. At the same time, they have good corrosion resistance to bacteria and chemical action, and are not afraid of acid, alkali and salt erosion.

Applications of Geotextiles and Geomembrane

The application scope of geotextile and geomembrane is different. Geotextile plays the role of strengthening, reinforcing, isolating, stratifying, filtering, draining and stabilizing in engineering. Geomembrane is mainly used in engineering construction fields for projects with high anti-seepage requirements, such as anti-seepage, isolation, reinforcement, anti-cracking, reinforcement, and horizontal surface drainage. The two can act alone or be combined into one to play their respective strengths.

Composite geomembrane

Conclusion

From the above, we can see that there are differences between the two, but the two can also be used in combination, and the effect of combined use is better, so when choosing, we must consider our actual situation and decide whether to use them alone or in combination.

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Focusing on the design, manufacturing, sales and after-sales service of geomembranes, geotextiles and GLC for more than 10 years, our products are sold all over the country and exported to more than 36 countries and regions.

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