Uw browser wordt niet meer ondersteund

The soil’s permeability is expressed by the K-value.
Threshold level: 5,4 x 10⁴ m/s (540 litres of water per second per hectare)

We recommend always testing the substrate for water permeability (open-end test or well method).

A I GRASS PAVER

• A1 Grass paver mix (only possible for BC 1 & BC 2)
• A2 Gravel filler

B I UNDERLAYER / PAVING LAYER

• B1 Crushed stone / topsoil mix
• for grass paver mix (for BC 1, BC 2 & BC 3 only)
  Add a 5 cm layer of crushed stone/topsoil mix, rake and level.
  Raking is necessary to ensure that the grass pavers can bed down properly in the crushed stone/topsoil mix.
  
  
• B2 Underlayer (paving layer)
• Water permeability: minimum 5,4 x 10⁴ m/s (10 times higher than the threshold level).
  Preferably porphyry 2/6.3. Sand or fine sand/grit mix is not recommended as it gets washed away or disappears into the foundation.

C I FOUNDATION

• The purpose of the foundation is to conduct the water to the sub-base / substrate.
  Note: a saturated foundation reduces the load-bearing capacity.
  Load-bearing capacity and material according to load:

D I SUB-BASE

• The sub-base provides additional load-bearing capacity (which is necessary depending on the depth of the load-bearing soil).

• In addition, it protects the substrate against frost and provides some buffer capacity, depending on the infiltration capacity of the substrate and the rate of drainage. The thickness of the sub-base is determined on the basis of the above parameters.

• The sub-base should preferably consist of natural crushed stone 0/32 with non-continuous distribution OR concrete rubble granulate 4/32 depending on the LA value. No mixed rubble or masonry rubble!

E I DRAINAGE PIPE (PINCH PIPE)

F I WATER-IMPERMEABLE MEMBRANE

G I NON-WOVEN GEOTEXTILE

H I SUBSTRATE