CN Drain (Geodrain)
Highly trusted prefabricated vertical drain that has an extensive amount of construction records
CN Drain is a free form composite structure that has separate filters and core materials. It is highly capable of collecting water as well as tacking land subsidence.
１.Specifications
| Properties | Unit | Specification | Test Method | |
|---|---|---|---|---|
| Dimension | Length | mm | 3 | |
| Width | mm | 100 | ||
| Drain | Tensile Strength | kN | > 2.0 | ASTM D4595 |
| Grab Tensile Strength | kN | > 1.9 | ASTM D4632 | |
| Elongation at break | % | > 20 | ASTM D4632 | |
| Elongation at 0.5kN | % | < 10 | ASTM D4632 | |
| Discharge Capacity at straight 10kPa, i = 0.5 | m3/s | > 85 x 10-6 | ASTM D4716 | |
| Discharge Capacity at straight 350kPa, I = 0.5 | m3/s | > 60 x 10-6 | ASTM D4716 | |
| Filter | Tensile Strength | kN/m | > 7.0 | ASTM D4595 |
| Grab Strength | N | > 500 | ASTM D4632 | |
| Tear Strength | N | > 150 | ASRM D4533 | |
| Permeability | m/s | > 1.0×10-4 | ASTM D4491 | |
| Apparent Opening Size, O90 | micron | < 75 | ASTM D4751 | |
２.Structure
CN Drain (Geodrain) Cross-section diagram
