Geosynthetic Design Parameters: LLDPE_geomembrane
Geosynthetic engineering design parameters per AASHTO M288-21, FHWA NHI-07-092, and GRI standards — geotextiles (woven, nonwoven), geogrids (uniaxial, biaxial, triaxial), geomembranes (HDPE, LLDPE, PVC), GCL, geocomposite drains, and erosion control mats with tensile strength, reduction factors, hydraulic properties, and survivability classes
| product type | application class | CBR puncture N min (N) | application | chemical resistance | elongation at break pct min | elongation at break pct typical | expected design life years (years) | notes | reduction factor creep (dimensionless) | reduction factor durability (dimensionless) | reduction factor installation damage (dimensionless) | survivability class | tensile strength kN per m min (kN/m) | tensile strength kN per m typical (kN/m) | test methods | thickness mm typical (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LLDPE_geomembrane | barrier#1.5mm | 270 | barrier | Good resistance to acids bases alcohols; better flexibility than HDPE; limited resistance to hydrocarbons | 800 | 900 | 50 | GRI GM17 LLDPE 1.5 mm; break strength 13 N/mm (76 lb/in) min; break elongation 800 pct min; better flexibility in cold climates; OIT standard 400 min or HP-OIT 35 min; lower stress crack risk than HDPE | 1 | 1.05 | 1.1 | 1.5mm | 13 | 20 | ASTM D6693 ASTM D4833 ASTM D1004 GRI GM17 | 1.5 |
| LLDPE_geomembrane | barrier#2.0mm | 400 | barrier | Good resistance to acids bases alcohols; better flexibility than HDPE | 800 | 900 | 50 | GRI GM17 LLDPE 2.0 mm; break strength approx 22 N/mm; break elongation 800 pct min; suitable for irregular subgrades due to high flexibility; more conformable than HDPE | 1 | 1.05 | 1.1 | 2.0mm | 22 | 32 | ASTM D6693 ASTM D4833 GRI GM17 | 2 |
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