Terrabase Addagrid

Terrabase Addagrid is a geonet made by three sets of overlaid intersecting strands. The inner strands are thicker and heavier to provide high compressive resistance and transmissivity. The intersecting strands form overlaid sets of continuous deep channels which provide high flow capacity. They are made from extrusion of High Density Polyethylene (HDPE). For use as part of the Terrabase Resin Bound Surfacing System.

General information
Specification data - Plastics sheets

Product Reference

Terrabase Addagrid

Standard product features


6.0 mm.



Technical characteristics:

  • Tensile strength: 10 kN/m.
  • Water flow capacity in plane between rigid boundaries (EN ISO 12958): 2.20 E-03 m²/s.
  • Durability (Annex B): Predicted to be durable for a minimum of 50 years in soil with 1.6 < pH > 13 and soil temperature up to 40°C on the basis of durability assessment report TDCE 006-07/05 and related test results. To be covered within one month after installation.

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