ICPI Releases New Maintenance Guide for Permeable Interlocking Concrete Pavements

April 28, 2017

CHANTILLY, Va. – The Interlocking Concrete Pavement Institute (ICPI) released “Tech Spec 23:  Maintenance Guide for Permeable Interlocking Concrete Pavements (PICP).”

PICP is a durable, cost-effective solution for compliance with national, state/provincial and municipal stormwater regulations. The surface consists of solid, durable concrete pavers with small, stone-filled joints that allow water to flow into highly permeable, open-graded bedding, base, and subbase aggregates. The spaces among the aggregates store water and enable infiltration into the soil subgrade rather than generating surface runoff.  PICP is an excellent option for freeze thaw climates.

“PICP has demonstrated significant runoff and pollutant reduction for walkways, plazas, driveways, parking lots, alleys, and streets throughout the U.S. and Canada,” said Matt Lynch, ICPI Chair.  “Like all other types of stormwater control measures, PICP requires some maintenance as over time sediment accumulates in the joints. Tech Spec 23 is a highly anticipated guide designed to provide project owners, design professionals, stormwater and road agencies, plus homeowners with PICP maintenance best practices.”

The 12-page guide with 36 figures and tables includes state-of-the-art information including:

  • An overview of PICP benefits and maintenance
  • Practices to support surface infiltration
  • Techniques for infiltration inspection and testing
  • Preventive maintenance equipment options for various PICP applications
  • Restorative infiltration maintenance information for highly clogged surfaces
  • Inspection intervals and procedures for maintaining surface infiltration
  • Winter maintenance practices

Tech Spec 23 is available in a PDF download version or print at www.icpi.org.  For a PDF, see the Resource Library and click on “Find a Tech Spec.”  The print version is also available for purchase on the website store.