Summary of specifications for permeable pavement Summary of specifications for permeable pavement

This table shows summarizes specifications for permeable pavement.
Link to this table.

Material	Specification	Notes
Permeable Pavers	Surface open area: typically 5% to 15%; minimum thickness: 3 inches for vehicles; minimum compressive strength: 8,000 psi	Concrete pavers conform to ASTM C936 and clay pavers C1272. Reservoir layer required to support the structural load.
Pervious Concrete	Void content: 15% to 35 % Thickness: typically 5 to 8 inches	May not require a reservoir layer to support loads, but a layer is required for storage/infiltration. In no case should plain steel rebar or mesh be used in pervious concrete as this invites corrosion.
Porous Asphalt	Void content: 16% to 20 % Thickness: minimum 2.5 inch surface	Reservoir layer contributes to structural load support.