Step 1 - Porous Base

The guideline is 16mm-32mm aggregate with 250 Kg of cement per cubic metre.

The advantages of this rigid porous base are:-

Connected void spaces allow free drainage of any excess water from weather or cleaning activities.

Connected void spaces allow the porous laying course to bind into the top layer of the porous base. This provides a strong bond between the layers that resists shear forces and allows the layers to act as one.