Features:
- High tensile strength polymer grids that improve the bearing capacity of aggregate base materials supporting paved and unpaved roadway surfaces.
- Prevent cracking and subsidence by increasing the vertical stress distribution of unbound base aggregates.
- Manufactured from polypropylene using extrusion, punching, heating, longitudinal and transverse stretching.
Performance:
- High tensile strength in both the transverse and longitudinal directions.
- Lateral stability is achieved by the geogrids restraining the lateral and vertical deformation of the aggregate
- Reinforcement is generated by the application of vertical stress that causes lateral and vertical deformation of the aggregate and the geogrids.
Typical Values:
| Property | Test Method | Unit | GG1515 (MD TD) |
GG2020 (MD TD) |
GG3030 (MD TD) |
GG4040 (MD TD) |
|---|---|---|---|---|---|---|
| Polymer | PP | PP | PP | PP | ||
| Minimum Carbon Black | ASTM D 4218 |
% | 2 | 2 | 2 | 2 |
| Tensile Strength @ 2% Strain | ASTM D 6637 |
kN/m | 5 5 | 5 5 | 10.5 10.5 | 14 14 |
| Tensile Strength @ 5% Strain | ASTM D 6637 |
kN/m | 7 7 | 14 14 | 21 21 | 28 28 |
| Ultimate Tensile Strength | ASTM D 6637 |
kN/m | 15 15 | 20 20 | 30 30 | 40 40 |
| Strain @ Ultimate Strength | ASTM D 6637 |
% | 13 10 | 13 10 | 13 10 | 13 10 |
| Structural Integrity | ||||||
| Junction Efficiency | GRI GG2 | % | 93 | 93 | 93 | 93 |
| Flexural Rigidity | ASTM D 1388 |
mg-cm | 700,000 | 1,000,000 | 3,500,000 | 10,000,000 |
| Aperture Stability | COE Method | mm-N/deg | 646 | 707 | 1432 | 2104 |
| Dimensions | ||||||
| Aperture | mm | 38 36 | 38 36 | 36 34 | 36 34 | |
| Minimum Rib Thickness | ASTM D 1777 |
mm | 0.9 0.7 | 1.3 1.0 | 2.1 1.8 | 2.1 1.6 |
| Roll Width | m | 3.95 | 3.95 | 3.95 | 3.95 | |
| Roll Length | m | 50 | 50 | 50 | 50 | |
| Roll Weight | kg | 39 | 50 | 72 | 105 | |
MD = Machine Direction
TD = Transverse Direction
