Firstly thanks to Mike Taylor for the suggestion of slate across the
> cavity,and thanks to Michael Mcneil for replying to my question about
> making a dry mix for screeding.
>
> Yesterday, we made the mix, placed it, but I am now wondering if we > made it too dry!
> It compacted in the hand when squeezed, but absolutely no excees > moisture was present.
>
> I wet the slab four times during the day before laying, and PVA'd 5:1 > as we screeded.
>
> Even after covering the screed with polythene, the top surface just
> became dust, so today I went over the screed with a mist sprayer and
> trowelled the surface.
> However, it is still suspiciously loose on top.
>
> Should the mix have been wetter, or is it normal for the top to become
> a bit loose as it cures?
>
> Is it irredeemable? - am I going to end up needing to seal it or put a
> self leveler on to hold it together. Or dig the whole lot out :-( > > Thanks in advance
>
> Bill M
too many unknowns Bill, need more info. Mix, depth, just how dry it was, how well it was tamped, etc
Even at the worst, if its just for domestic use you'd only need to dig it out if it was loose, otherwise it could just be glued - but hopefully its nothing like that bad!
Regards, NT