The Difference Between Geomembrane and Geotextile
Geotextile, as the name suggests, is made of non-woven fabric. Mainly used to strengthen the foundation. Geomembrane is made of high-density polyethylene, which is mainly used for anti-seepage. The combination of the two is a composite HDPE geomembrane factory price, which is divided into one cloth and one membrane and two cloths and one membrane, which has stronger reinforcement and anti-seepage performance.
Geotextile, also known as geotextile, is a water-permeable geosynthetic material made of synthetic fibers by needling or weaving. The finished product is cloth-like, generally 4-6 meters wide and 50-100 meters long. Geotextiles are divided into woven geotextiles and nonwoven geotextiles.
Geotextiles have excellent filtering, drainage, isolation, reinforcement, anti-seepage, and protection functions. They have lightweight, high tensile strength, good permeability, high-temperature resistance, freeze resistance, aging resistance, and corrosion resistance. Geomembrane, geomembrane at the construction site is a geomembrane impervious material made of plastic film as an impervious base material and non-woven fabric. Its impermeability mainly depends on the impermeability of plastic film.
At present, plastic films for anti-seepage applications at home and abroad are mainly polyvinyl chloride (PVC), polyethylene (PE), and EVA (ethylene/vinyl acetate copolymer). They are a kind of polymer chemical flexible materials with a small proportion. Strong extensibility, high ability to adapt to deformation, corrosion resistance, low-temperature resistance, good frost resistance.
The main mechanism is to block the leakage channel of the earth dam with the impermeability of the plastic film, withstand the water pressure and adapt to the deformation of the dam with its large tensile strength and elongation; and the non-woven fabric is also a polymer short fiber chemistry The material 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 the plastic film but also because of the rough surface of the non-woven fabric. The friction coefficient of the contact surface is increased, which is beneficial to the stability of the composite geomembrane and the protective layer. At the same time, they have good erosion resistance to bacteria and chemical action and are not afraid of acid, alkali and salt erosion.
Geotextiles and geomembrane have different application scopes. Filament nonwoven geotextile for sale plays a role in strengthening and reinforcing, isolating and layering, filtering, drainage and stabilization in the project. Geomembrane is mainly used in projects with high anti-seepage requirements such as anti-seepage, isolation, reinforcement, anti-cracking, reinforcement, and drainage of horizontal surfaces. The two can work independently or can be combined into a whole to play their respective strengths.