Aquaflow 10-63mm is a high performance coarse aggregate specifically designed to provide controlled water management within Sustainable Drainage Systems (SuDS). Aquaflow 10-63mm has no fines and is typically used where the ground conditions are soft or where deep level make up is required where it forms a stable starter layer within the pavement construction. The angular shape offers optimal voids for controlled flow of rainwater, while it’s natural strength ensures the long term integrity of the pavement is maintained.