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Sahlla Abbasi moved page Permeable paving: Specifications to Permeable pavements: Specifications: Updating terminology from permeable paving -> permeable pavements on all pages
{|class="wikitable"
{|class="wikitable"
|+ specifications for pervious concrete, porous asphalt, and permeable pavers.
|+Specifications for pervious concrete, porous asphalt, and permeable pavers
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!style="background: cyan; color: black"|Material
!Material
!style="background: cyan; color: black"|Specification
!Specification
!style="background: cyan; color: black"|Quantity
!Quantity
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|'''Pervious concrete'''
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|* 28 day compressive strength = 5.5 to 20 MPa <br> * Void ratio = 14% - 31%<br>* Permeability = 900 - 21,500 mm/hr||Thickness will range from 100-150 mm depending on the expected loads
* NO4-RG-S7 mix with air entrainment proven to have the best freeze-thaw durability after 300 freeze-thaw cycles.
* 28 day compressive strength = 5.5 to 20 MPa.
* Porosity between 14% to 31%.
* Permeability = 900 to 21,500 mm/hr.
* Proprietary pre-cast slabs meeting required specifications are also available.
|Thickness will range from 100 mm - 150 mm depending on the expected loads.
|-
|-
|'''Porous asphalt'''
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* Open-graded asphalt mix with a minimum porosity of 16%.
* Polymers can be added to provide additional strength to heavy loads.
*The University of New Hampshire Stormwater Center has detailed design specifications for porous asphalt.
|Thickness will range from 50 mm - 100 mm depending on the expected loads.
|-
|'''Permeable Interlocking Pavements'''
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*Pavers shall meet the minimum material and standard specifications for precast concrete pavers (CSA A231.2 in Canada; ASTM C936 in United States).
*Open space between pavers (i.e. joint space) typically ranges between 5 and 15% of the total surface area.
*ASTM No. 8 (5 mm dia.) crushed aggregate is recommended for fill material in the paver joints (typically HPB).
*For narrow joint pavers, a smaller sized aggregate may be used. Narrow joints are required where pavement must be AODA compliant.
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*For vehicle applications the minimum paver thickness is 80 mm
*For pedestrian applications the minimum paver thickness is 60 mm and joint widths should be no greater than 15 mm.
|}