I'm raising the level of my lawn so I need to build a short retaining wall (850cm x 25w x 45h). I think i need to lay concrete down underneath the hollow concrete blocks i have chosen and was thinking of using Blue CIrcle Quickset Concrete. A) Is that a good idea, b) how much water should I add (as it says sprinkle straight on, and c) is there a better way?
Any help would be great.
Thanks!!