Pet @ www.gymratz.co.uk wrote:

how dry is a dry mix?
this is for a thin screed over UFH

My mate said it's like the consistency of Apple crumble topping, but is
there a more usefull way of working out what dry really is?

If its too wet it slumps.

It can almost be as dry as you like frankly. It will in time set no
matter how little water there is in it.

Being as how this is a dampish sort of planet.