Guidelines for Permeable Interlocking Concrete Pavements (PICP) in South Africa Volume 1 Clogging in Permeable Interlocking Concrete Pavement (PICP). Download - Stars (0) 123 Downloads Owner: Hendrick Manaiwa Version: 1.0 Last Updated: 02-06-2023 9:40 DescriptionPreview Posted in Uncategorized.