Difference Between Anti-seepage Geomembrane and Anti-seepage Geotextile in Geomembrane
The current building construction, regardless of the roof, wall, bathroom, basement, will have different degrees of water leakage, flat roof leakage problems, especially in the rainy season with heavy rain and heavy rain at this stage, the leakage is more obvious. The composite geomembrane can solve this problem very well. The wholesale HDPE geomembrane in the composite geomembrane has good impermeability and waterproofness, high tensile strength and ability to adapt to deformation, and the geotextile on the composite geomembrane can both play drainage The effect of air and bearing external force can improve the anti-sliding ability of the contact interface. The composite geomembrane used as the waterproof layer of the roof has better working conditions due to its lower water pressure.
The general structure of roof waterproofing is to first lay a cement mortar screed on the roof slab, then lay a composite geomembrane on it as a waterproofing layer and a thermal insulation layer, and finally, make a fine stone concrete rigid waterproofing layer.
Impervious geomembrane is that they are a kind of polymer chemical flexible materials, with a small specific gravity, strong extensibility, high ability to adapt to deformation, corrosion resistance, low-temperature resistance, and good frost resistance. The main mechanism is to block the leakage channel of the earth dam with the impermeability of plastic film, withstand its water pressure and adapt to the deformation of the dam with its large tensile strength and elongation. The wholesale polyester nonwoven geotextile uses plastic film as the anti-seepage base material, which is a geotechnical anti-seepage material compounded with non-woven fabric. Its anti-seepage performance mainly depends on the anti-seepage performance of the plastic film.
At present, the plastic films used in anti-seepage geomembrane at home and abroad are mainly polyvinyl chloride (PVC) and polyethylene (PE). They are a kind of polymer chemical flexible materials with a small specific gravity, strong extensibility, and adaptability. High deformation ability. Corrosion resistance, low-temperature resistance, and good frost resistance. The main mechanism is to block the leakage channel of the earth dam with the impermeability of plastic film, to bear the water pressure and adapt to the deformation of the dam with its large tensile strength and elongation.
The non-woven fabric is also a polymer short fiber chemical material. It has high tensile strength and elongation through needle punching or hot bonding. It combines with the plastic film to increase the tensile strength of the plastic film. Strength and puncture resistance, and because the surface of the non-woven fabric is rough, 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.