So its about a 16 hectare park , so if all covered in concrete ,...

So its about a 16 hectare park , so if all covered in concrete , not including what is needed for buildings and 4 inch thick cement that would be
16 * 100 * 100 * 0.1 M = 16,000 cubic meters of cement
Say 2 gallons of Edencrete per cubic meter at $20 a gallon * 16,000 = US $640K not exactly mind blowing unless it starts a new wave however the low overall cost of Edencrete for the net benefits look compelling for a theme park operator ie less rebar , less ground preparation compaction/subbase , , less cement to be used , easier cleaning , less surface cracks and abrasion .