Geosynthetic Properties: GEOCOMPOSITE_DRAIN
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 | aos mm max (mm) | aos mm min (mm) | interface friction angle deg max (deg) | interface friction angle deg min (deg) | notes | permittivity sec max (s^-1) | permittivity sec min (s^-1) | polymer | thickness mm max (mm) | thickness mm min (mm) | typical applications |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GEOCOMPOSITE_DRAIN | Heavy | 0.6 | 0.15 | 30 | 20 | High compressive load applications; ASTM D6244 for compressive creep; design transmissivity = tested value / (RF_cc x RF_bc x RF_in) | 1.5 | 0.3 | HDPE geonet or foam core + heavy nonwoven | 35 | 15 | MSE wall internal drainage; green roof drainage; heavy-duty foundation drainage |
| GEOCOMPOSITE_DRAIN | Lightweight | 0.45 | 0.07 | 25 | 16 | Flow rate ASTM D4716 at 1000 Pa and i=0.1: 2-10 gpm/ft typical; transmissivity theta = k x t; must resist compression under design load | 3 | 0.8 | HDPE geonet core + PP nonwoven geotextile filter | 10 | 5 | Retaining wall drainage; edge drain; pavement drainage; foundation wall drainage |
| GEOCOMPOSITE_DRAIN | Medium | 0.3 | 0.07 | 28 | 16 | Flow rate ASTM D4716: 5-25 gpm/ft; must maintain flow under sustained load; compressive creep reduction factor RF_cc for design flow | 2 | 0.5 | HDPE triplanar geonet + PET geotextile | 20 | 10 | Retaining wall primary drainage; landfill leachate collection; rooftop drainage composite |
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