Expanded Clay Aggregate, ECA, Leca, Clay Courts Construction

Clay Courts Construction

  • EXPANDED CLAY AGGREGATE (ECA) is laid on the sub-grade
  • 100 – 500 mm compacted depth of foundation
  • 40 - 80 mm of EXPANDED CLAY AGGREGATE (ECA) that supports capillary action
  • 30 - 40 mm compacted depth of crushed EXPANDED CLAY AGGREGATE (ECA)
  • 3 – 5 mm of fine crushed EXPANDED CLAY AGGREGATE (ECA), which serves as a cushion effect. It reduces the level of injury when kids fall on this kind of a surface.


Application of Expanded Clay Aggregate (ECA) in a Football or a Golf Turf Grass

  • EXPANDED CLAY AGGREGATE (ECA)  laid on the sub-grade
  • 5 – 9 mm of EXPANDED CLAY AGGREGATE (ECA), which serves as a permeable backfill
  • 40 mm of EXPANDED CLAY AGGREGATE (ECA)  with a binder (resin) to separate top soil from foundation layer
  • 80 – 120 mm of top soil (root-zone)
  • 6 – 10 mm of turf


Drainage below playing fields

The use of ECA is for the drainage systems below playing fields prevents flooding and allows the field to be used in adverse weather conditions. Expanded Clay Aggregate also prevents the ground from settling.




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