Polymer Grid
| Physical Characteristics | Test Methods | Data |
|---|---|---|
| Structure | Bi-Oriented Geogrids | |
| Mesh Type | Rectangular Apertures | |
| Standard Color | White | |
| Polymer Type | Polypropylene | |
| Carbon Black Content | ASTM D4218 | No |
| Flame Retardant | ISO 9705 | Yes |
| Packaging | ISO 10320 | Rolls in Polyethylene bags with I.D. labels. |
| Dimensional Characteristics | Test Method | Unit | FR 270 | Notes |
|---|---|---|---|---|
| Aperture MD | mm | 59.5 | b,d | |
| Aperture TD | mm | 56.5 | b,d | |
| Mass Per Unit Area | ISO 9864 | g/m² | 270 | b |
| Roll Width | m | 4.0 | b | |
| Roll Length | m | 25.0 | b | |
| Roll Diameter | m | 0.3 | b | |
| Roll Volume | m³ | 0.4 | b | |
| Gross Roll Weight | kg | 61.0 | b |
| Technical Characteristics | Test Method | Unit | FR 270 | FR 270 | Notes |
|---|---|---|---|---|---|
| MD | TD | ||||
| Peak Tensile Strength | ISO 10319 | Kn/m | 20.0 | 20.0 | a,c,d |
| Yield Point Elongation | ISO 10319 | % | 13.0 | 10.0 | b,c,d |
DSI Underground Polymer Mining Grid is an alternative to weld wire mesh products and can be used as a supplemental support structure between roof/rib bolts in any underground mining and or tunneling operation. It is corrosion resistant and is especially applicable to any screening project when it will need to be "mined through" such as for pillar wrapping or for pilot tunnels. It is also especially useful in corrosive environments.
