The plastic drainage board is made of polystyrene (HIPS) or polyethylene (HDPE), stamped and made into a conical projection or a stiffened rib (or a hollow cylindrical porous). Now the raw materials have been replaced with polyvinyl chloride (PVC), which compressive strength and overall flatness have been greatly improved. The width is 1-3 meters and the length is 4-15 meters or more.
Apply to expressways, railways, airports, power plants, storage yards, ports, reclamation, sewage treatment plants, landfills, land construction around the sea, water conservancy and hydropower, dock construction, etc.
| No. | Item | Index | |
|---|---|---|---|
| 1 | Tension at 10% Elongation (N/100mm) ≥ | 350 | |
| 2 | Max. Tension (N/100mm) ≥ | 600 | |
| 3 | Elongation at Break (%) ≥ | 25 | |
| 4 | Tearing Strength (N) ≥ | 100 | |
| 5 | Compression | Maximum Strength at Compression Rate of 20% | 150 |
| Performance After Full Compression | No Cracks | ||
| 6 | Flexibility at Low Temperature | ﹣10℃ No Cracks | |
| 7 | Aging (80℃, 168h) | Tension Retention at 10% Elongation | 80 |
| Max. Tension Retention (%) ≥ | 90 | ||
| Retention Rate of Elongation at Break (%) ≥ | 70 | ||
| Max. Strength Retention Rate at Compression Rate of 20%, ≥ | 90 | ||
| Performance After Full Compression | No Cracks | ||
| Flexibility at Low Temperature | ﹣10℃ No Cracks | ||
| 8 | Longitudinal Flow Capacity (cm³/s) ( Lateral Pressure 150KPa) ≥ | 10 | |
| Material | HDPE | ||
|---|---|---|---|
| Height (mm) | 20 | 25 | 30 |
| Compressive Strength ( KPa≥) | 350 | 350 | 350 |
| Longitudinal Water Flow (cm2/s) | 12 | 13 | 20 |
| High Water Storage (L/m2) | 4 | 4 | 4 |