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Permeable pavements: Specifications (view source)
Revision as of 09:26, 20 September 2017
, 8 years agono edit summary
{|class="wikitable"
{|class="wikitable"
|+ 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
!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
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!Porous Asphalt
!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
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!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.
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