Hi all i was a plasterer years ago & now im a bit lost with all the new stuff, well i need to repair my block paving drive as it keeps sinking,know im sure i used grit before but cant seem to get it now is it still available? & is that the right stuff? then of course id sweep over some kiln dry on top. also while im here ive finished building a wall outside & years ago we used sharp sand for rendering,so what is this new plastering sand all about showing me age aint i cheers woody