Description: 20mm RCP is a suitable alternative to traditional road crush and is made up of highly angular fractured concrete and manufactured sand for exceptional compaction. Used for: 20mm RCP is a versatile material that can be used for roadway and pathway base material under paving stones or retaining walls, granular backfill or as surface gravel on roads and driveways. Colour: Gray with minor colour variations. Cost: $5 minimum, $15/tonne |