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• 21:59, 22 September 2022 SamanthaPelayo talk contribs created page Permeable pavement sub-base and base course (Created page with "Because permeable pavements may be required to support heavy loads (driveways, laneways, etc.), the sub-base and base course may require compaction to prevent heaving and shifting. ===Sub-base reservoir=== In permeable pavement systems, the sub-base is the layer of granular material that is laid on the sub-grade. The granular sub-base should be clear, crushed 50 mm stone. See the Permeable pavements: Specifications page for detailed sub-base material specifications. Th...")