GEOGRID

Biaxial Geogrid

1. Road Engineering Applications
Subgrade Reinforcement
Biaxial geogrids enhance roadbed performance by:
✔ Uniformly distributing traffic loads to minimize differential settlement
✔ Increasing bearing capacity of soft soils (e.g., marshland foundations)
✔ Preventing pavement cracking/subsidence in weak subgrade conditions
Pavement Interlayer Stabilization
When installed between asphalt layers, they:
✔ Reduce reflective cracking by 60-80% (per ASTM D6432)
✔ Extend service life of semi-rigid pavement structures
✔ Lower maintenance costs by delaying surface deterioration
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2. Railway Engineering Applications

Track Bed Reinforcement
Biaxial geogrids improve railway infrastructure through:
✔ Lateral confinement of ballast particles (reducing settlement by 40%)
✔ Enhanced load distribution under dynamic train loads (up to 25t/axle)
✔ Preserved drainage capacity (permeability >10⁻² cm/s)

Subgrade Stabilization
They provide:
✔ Increased CBR values (from 3-5 to 8-10 in weak soils)
✔ Reduced track geometry maintenance frequency

3. Hydraulic Engineering Applications

Embankment Reinforcement
In dam/levee construction, geogrids:
✔ Improve shear strength (φ increase by 5-10°)
✔ Prevent piping erosion through particle retention
✔ Withstand wave overtopping (up to 2 m/s flow velocity)

Canal Lining Systems
When combined with concrete linings:
✔ Control shrinkage cracks (crack width reduction >50%)
✔ Resist hydraulic scour (service life extension by 15+ years)

Technical Advantages

✅ Equal strength in MD/XMD directions (typical 30-100 kN/m)
✅ UV-resistant formulations (5000+ hour weatherability)
✅ Chemical inertness (pH 2-12 compatibility)

Performance Data