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Permeable Interlocking Concrete Pavement (PICP)

by
Permeable Pavements Task Committee


Part of: Permeable Pavements

Abstract:

Permeable interlocking concrete pavement (PICP) consists of (impervious) manufactured concrete units that form permeable voids and joints, when assembled into a laying pattern. The openings typically comprise 5% to 15% of the paver surface area that maintain high permeability with small-sized aggregates. The openings allow stormwater to enter a permeable stone bedding layer and base/subbase that support the pavers while providing storage and runoff treatment. PICP replaces traditional impervious pavement for most pedestrian and vehicular applications, except high-volume/high-speed roadways. PICP has performed successfully in pedestrian walkways, sidewalks, driveways, parking lots, and low-volume roadways. Key resources for designers are published by the Interlocking Concrete Pavement Institute (ICPI), which include a detailed manual entitled Permeable Interlocking Concrete Pavements: Selection Design Construction Maintenance (Smith 2011) and a design software program entitled Permeable Design Pro (ICPI 2009).

Subject Headings: Concrete pavements | Permeability (material) | Pavement design | Pavement condition | Walkways | Pedestrians and cyclists | Highways and roads

 

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