Mathew Newton Wrote in message:
On Sunday, 27 January 2019 08:25:32 UTC, harry wrote:

I could never see the point of unbonded screeds.
Maybe too thin or the wrong mix.
https://www.ardexbuildingproducts.ie/types-of-screed/

As your link says, for a 50m+ thickness like mine it needs to be unbonded. I suspect it is because the extra thickness results in a greater differential in drying time throughout the depth hence greater potential for movement (as in this case!).


50m+ ? - feck, no wonder it's curling up...
--
Jim K


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