Difference between revisions of "Permeable pavements: Specifications"

Revision as of 09:26, 20 September 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.

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-|+ specifications for pervious concrete, porous asphalt, and permeable pavers.
+|+ <h2>[[Specifications for pervious concrete, porous asphalt, and permeable pavers]] </h2>
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 !Pervious Concrete
-|* 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
+|* 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 mm-150 mm depending on the expected loads
 |-
 !Porous Asphalt
+|* open-graded asphalt mix with a minimum of 16% air voids <br> * 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.<br>*Pavers shall meet the minimum material and standard specification for Precast Concrete Pavers.<br>*Pigment in concrete pavers shall conform to ASTM C 979 ACI Report No. 212.3R provides guidance on the use of pigments.<br>*Maximum allowable breakage of product is 5%||*For vehicle applications the minimum paver thickness is 80 mm<br>*For pedestrian applications is 60 mm and Joint widths should be no greater than 15 mm.
+|-