Why Does HDPE Geomembrane Do Not Block The Roots Of Vegetation?
At present, most of the current market uses SBS membrane as the root barrier layer of the roof, which is divided into two categories: physical root resistance and chemical root resistance. Why does HDPE geomembrane do not block the roots of vegetation, and the anti-root puncture function is stronger than usual waterproof rolls What about the materials, here are you one by one:
The HDPE geomembrane material is made of about 97.5% high-quality polyethylene, 2.5% carbon black, a trace amount of antioxidants and heat stabilizers. The co-extrusion process is used, which is a one-time molding production, and the rough surface hdpe is resistant. The more important feature of the permeable membrane is that it can supplement the stability of the slope of the material, so that the usable volume that can be carried by the HDPE geomembrane is more poor, and it is suitable for laying steep slopes while also raising the design. Talent. The rough surface geomembrane has the following seven functions:
1.High friction coefficient-the small particles of HDPE geomembrane increase the friction coefficient and the stability of the slope, so that the usable volume that the smooth HDPE film can carry is more poor.
2. High anti-seepage coefficient-HDPE geomembrane has an anti-seepage effect that cannot be compared with ordinary waterproof materials, and the water vapor penetration coefficient K<=1.0*10-13g.cm/c cm2.s.pa.
3. Chemical stability-The chemical stability of HDPE geomembrane is widely used in sewage treatment, chemical reaction tanks, waste landfills. It is resistant to high and low temperature, asphalt, oil and tar, acid, alkali, salt, etc. more than 80 What kind of strong acid and alkali chemical medium is corroded.
4. Anti-aging function-HDPE geomembrane has excellent anti-aging, anti-ultraviolet, anti-decomposition properties, can be exposed and used, and has a life span of 50-70 years.
5. Anti-vegetation root system-HDPE geomembrane has puncture resistance.
6.High machine strength-HDPE geomembrane has excellent machine strength and excellent elasticity and deformation talents, making it extremely suitable for expansion or contraction of the base surface, which can effectively restrain the uneven settlement of the base surface, and the fracture extension rate is 700%.
7. Fast construction speed-HDPE geomembrane has high flexibility, has a variety of specifications and multiple laying methods, adopts hot melt welding, high weld strength, convenient and rapid construction.
