HDPE Plastic Dimple Drain Board
Drainage Board with dimple is made from high density polyethylene plastic and it is a kind of geomembrane with dimples on the surface. The dimples can be in cylinder and semi cone shape. It could also be coated by non woven geotextile. The liquid and gas can go through freely between dimples.
Technical parameter
| Plastic drainage board | ||
| item | Specification | |
| Tension at 10% elongation (N/100mm) ≥ | 350 | |
| Maximum pulling force (N/100mm) ≥ | 600 | |
| Elongation at break /% ≥ | 25 | |
| Tear performance/N ≥ | 100 | |
| Compression performance | Maximum strength when compression rate is 20%/KPa ≥ | 150 |
| Extreme compression performance | No break | |
| Low temperature flexibility | -10℃ no cracks | |
| Heat aging | Tensile retention at 10% elongation≥ | 80 |
| Maximum tensile retention rate/(N/100mm) /% ≥ | 90 | |
| Elongation at break retention rate /% ≥ | 70 | |
| Maximum strength retention rate when the compression rate is 20% ≥ | 90 | |
| Extreme compression performance | No break | |
| Low temperature flexibility | -10℃ no cracks | |
| Longitudinal water flow (test pressure 150KPa) (cm²/s) ≥ | 10 | |
Feature
1. Drainage cell has the functions of building layer drainage, discharging soil infiltration water and storing part of infiltration water.
2. Drainage cell can store water and is conducive to the growth of vegetation.
3. Drainage cell has good compressive strength.
4. Convenient construction, simple maintenance and economic.
5. Drainage cell has Strong load resistance and durability.
6. Ensure that excess water can be quickly drained away.
7. Drainage cell can provide sufficient water and oxygen for plant growth.
8. Lightweight and strong roof insulation.