Changes

[[File:Vibratory-screed.PNG|375px|thumb|right|Vibratory screed flattening porous concrete.]]

[[File:Vibratory-screed.PNG|375px|thumb|right|Vibratory screed flattening porous concrete. ([https://cvc.ca/wp-content/uploads/2013/03/CVC-LID-Construction-Guide-Book.pdf CVC, 2012])<ref>CVC. 2012. Low Impact Development Construction Guide. Version 1.0. https://cvc.ca/wp-content/uploads/2013/03/CVC-LID-Construction-Guide-Book.pdf</ref>]]

[[File:Vibratory-screed-2.JPG|400px|thumb|right|Porous concrete being pre-leveled prior to initial consolidation with a vibratory screed.]]

[[File:Vibratory-screed-2.JPG|400px|thumb|right|Porous concrete being pre-leveled prior to initial consolidation with a vibratory screed. (Photo Source: Washington State Dept of Transportation on Flickr)]]

[[File:Concrete-roller.JPG|400px|thumb|right|Partial covering with plastic and final consolidation with a hand-roller.]]

[[File:Concrete-roller.JPG|400px|thumb|right|Partial covering with plastic and final consolidation with a hand-roller.(Photo Source: CVC, n.d.)]]

The installation of pervious concrete requires the placement of ready-mix into forms. Unlike permeable pavers, pervious concrete also requires extensive curing time. Pervious concrete has the most particular installation requirements of the various permeable pavement types. It is recommended that contractors with certifications for the installation of pervious concrete, such as NRMCA certifications, are tasked with its installation.

The installation of pervious concrete requires the placement of ready-mix into forms. Unlike permeable pavers, pervious concrete also requires extensive curing time. Pervious concrete has the most particular installation requirements of the various permeable pavement types. It is recommended that contractors with certifications for the installation of pervious concrete, such as National Ready Mix Concrete Association certifications ([https://www.nrmca.org/certifications/ NRMCA, 2022])<ref> National Ready Mix Concrete Association. 2022. Certifications https://www.nrmca.org/certifications/</ref> are tasked with its installation. See [[Permeable pavements: Specifications]] for more information.

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