Sheet · 4–5 mm
Clay-Polymer — indicative fig. C·05
Geosynthetic clay liner (GCL) with sodium bentonite between geotextiles. Typical properties include bentonite mass >4.2 kg/m2, swell index >=24 mL/2g, and hydraulic conductivity <=5 x 10^-10 m/s (ASTM D5887).
01 Physical
Density >=4500g/m2
Water absorption >600%
UV resistance 72hours
Chemical resistance Good
pH tolerance 12pH range 2-14
02 Mechanical
Tensile strength >10.4kN/m
Shear strength 24kPa
Creep resistance Good
03 Thermal
Data pending — not yet recorded for this material.
04 Compliance & Fire First question
Fire & compliance data pending — verify combustibility and BAL rating against product certification before specifying.
05 Sustainability & Health
Data pending — not yet recorded for this material.
06 Durability · Cost · Logistics
Data pending — not yet recorded for this material.
07 Assessment
Advantages
- Low hydraulic conductivity (<=5 x 10^-10 m/s) under ASTM D5887 index conditions
- High swell index (>=24 mL/2g) and controlled bentonite mass per unit area (ASTM D5890/D5993)
- Verified tensile/rupture and peel strengths via ASTM D6768/D6496
Constraints
- Performance is product-specific and requires manufacturer data for design
- Compatibility testing required for aggressive chemical environments
- Heavy rolls require mechanical handling and installation planning
08 Applications
A1 Below-ground waterproofing for basements and foundations
A2 Tunnel and underground structure waterproofing
A3 Retaining wall waterproofing
A4 Landfill base and cap lining systems
A5 Mining heap leach pads and tailings dams
A6 Agricultural and aquaculture pond lining
A7 Contaminated land remediation barriers
A8 Secondary containment for chemical storage
A9 Green roof waterproofing systems
A10 Marine and coastal structure protection
A11 Cut-off walls and vertical barriers
A12 Temporary dewatering applications
09 Sources & Standards
Sources pending — citations for this material are not yet recorded. Verify all figures against manufacturer data and current standards before specifying.