pavers may be impermeable bricks, cobbles, natural stone, or modular unit concrete pavers with permeable joints to allow runoff to percolate to subsurface layers. Where soil permeability is low, an under drain system connected to the storm drain...
paving stones are installed over a compacted stone sub-base and a leveling bed of sand. Concrete paving stones can be used for walkways, patios, pool decks and driveways and airport or loading docks. Instead of connecting the pavers by pouring grout...
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