Difference between revisions of "Permeable pavements: Specifications"

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* Void ratio = 14% - 31%
* Void ratio = 14% - 31%
* Permeability = 900 - 21,500 mm/hr
* Permeability = 900 - 21,500 mm/hr
|Thickness will range from 100 mm-150 mm depending on the expected loads
|Thickness will range from 100 mm - 150 mm depending on the expected loads
|-
|-
|'''Porous Asphalt'''
|'''Porous Asphalt'''
|
|
* open-graded asphalt mix with a minimum of 16% air voids  
* open-graded asphalt mix with a minimum of 16 % air voids  
* Polymer can be added to provide additional strength to heavy loads
* Polymer can be added to provide additional strength to heavy loads
|Thickness will range from 50 mm-100 mm depending on the expected loads
|Thickness will range from 50 mm - 100 mm depending on the expected loads
|-
|-
|'''Permeable Pavers'''
|'''Permeable Pavers'''

Revision as of 20:33, 16 October 2017

Specifications for pervious concrete, porous asphalt, and permeable pavers
Material Specification Quantity
Pervious Concrete
  • 28 day compressive strength = 5.5 to 20 MPa
  • Void ratio = 14% - 31%
  • Permeability = 900 - 21,500 mm/hr
Thickness will range from 100 mm - 150 mm depending on the expected loads
Porous Asphalt
  • open-graded asphalt mix with a minimum of 16 % air voids
  • Polymer can be added to provide additional strength to heavy loads
Thickness will range from 50 mm - 100 mm depending on the expected loads
Permeable Pavers
  • ASTM No. 8(5 mm dia) crused aggregate is recommended for fill material in the paver openings.
  • Pavers shall meet the minimum material and standard specification for Precast Concrete Pavers.
  • Pigment in concrete pavers shall conform to ASTM C 979 ACI Report No. 212.3R provides guidance on the use of pigments.
  • Maximum allowable breakage of product is 5%
  • For vehicle applications the minimum paver thickness is 80 mm
  • For pedestrian applications is 60 mm and Joint widths should be no greater than 15 mm.