Geosynthetic Properties: UNIAXIAL_GEOGRID
Geosynthetic material properties — woven and nonwoven geotextiles, biaxial and uniaxial geogrids, HDPE and LLDPE geomembranes, and geocomposite drains — with tensile strength, permittivity, AOS, and interface friction data
| geosynthetic type | product class | interface friction angle deg max (deg) | interface friction angle deg min (deg) | ltds lb ft max (lb/ft) | ltds lb ft min (lb/ft) | notes | polymer | thickness mm max (mm) | thickness mm min (mm) | typical applications | ultimate tensile strength lb ft max (lb/ft) | ultimate tensile strength lb ft min (lb/ft) | ultimate tensile strength lb ft typical (lb/ft) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UNIAXIAL_GEOGRID | Heavy | 40 | 30 | 45,000 | 10,000 | PET geogrids: creep rate lower than HDPE; RF_cr PET = 1.6-2.0 vs 2.0-4.0 for HDPE; ASTM D6637 Method A (single rib) for testing | High-tenacity PET woven or HDPE | 10 | 3 | MSE wall reinforcement heavy loading and tall walls >30 ft; bridge abutment approaches | 80,000 | 35,000 | 55,000 |
| UNIAXIAL_GEOGRID | Light | 35 | 28 | 8,000 | 1,500 | LTDS = Tult/RF_cr/RF_dur/RF_id per FHWA NHI-10-024; typical LTDS 30-60% of Tult at 75-100 yr design life | HDPE extruded uniaxial | 4 | 1.5 | MSE wall reinforcement; slope reinforcement low heights; embankment on soft soils | 15,000 | 5,000 | 10,000 |
| UNIAXIAL_GEOGRID | Medium | 38 | 30 | 18,000 | 4,000 | LTDS = Tult/(RF_cr x RF_dur x RF_id); RF product = 2.5-5.0 for HDPE; lower for PET; AASHTO LRFD Section 11.10 | HDPE or PET extruded/woven | 6 | 2 | MSE wall reinforcement medium heights 10-30 ft; reinforced slopes | 35,000 | 15,000 | 25,000 |
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