I screeded (75mm) a floor about 10 days ago and removed the plastic sheeting today. There are some areas that are crumbly and once the loose material is removed a small crater is left behind, say 30-40mm diameter and about 3 or 4 mm deep. The screed surrounding this appears sound.
Not sure what I did wrong, perhaps it got too dry or not compacted enough in these areas?
Anyway, I am now looking for advice as to what to do about it. The floor will be covered with laminate flooring, so in some ways it probably doesn't matter too much. Could I fill the larger craters with more screed or as it would be so thin should I be using something else?
Many thanks for any advice, Jon...