Bastion Quik Set Concrete is a blend of dry aggregate, graded sands, cement and set accelerating additives ideal for posts, uprights, letter boxes, clothes lines and other non-structural building applications. It is easy to use with no mixing required and, with a initial setting time of 20 minutes, is great for small jobs where rapid hardening is required.,Bastion Quik Set Concrete is a blend of dry aggregate, graded sands, cement and set accelerating