Agru Ireland Ltd. T/A Lining Tech

Agru Ireland Ltd. T/A Lining Tech

Geosynthetic Clay Liners


A Geosynthetic Clay Liner (GCL) is a self-sealing lining material. It has a composite structure that utilises the strength of millions of needle-punched fibres to secure a uniform layer of high swelling sodium bentonite. Polymer fibres and a naturally occuring clay material create very balanced combination, creating the ultimate sealing layer with high long-term shear strength. Once hydrated, GCL’s provide an effective barrier against liquids, gases and vapours. GCL’s are used for a wide variety of applications including landfill lining, secondary containment and groundwater protection.

Advantages of GCL

  • Versatile sealing applications with different GCL types and sodium bentonite
  • Can reduce construction costs by replacing compacted clay
  • Robust geotextiles encapsulate and contain the bentonite
  • Withstands differential settlement
  • Uniform peel strength provides multi-directional shear strength
  • Thermal Lock process increases internal shear strength and interface friction angles
  • Self-sealing overlaps available
  • Quick and easy to install

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