F
Flintstone
1mm per day up to 40mm then 1mm every two days for any additional thickness, at optimum temperature. People take this as gospel, I’ve seen it a lot, when it’s only been a few degrees or no windows in the house.
Floor drying times in a conservatory.
- Thread starter Andy Allen
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- canada conservatory dry drying floor
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If it's concrete it has 2 drying mechanisms. 1 is evaporation. The Other is hydration. This is the hardening reaction and continues until the moisture is used up. It takes a while. Liquid DPMs on damp concrete are extremely common in the UK. There are loads of them.
H
hmtiling
Ditra or durabase simples
Hmmm. Curing is a much mis quoted term. Curing of concrete is carried out by either spraying on a curing membrane or by covering with a sheet of polythene. We used to use damp Hessian many years ago. This process is designed to entrap as much moisture in the concrete whilst it sets and gains enough internal strength to prevent cracking due to drying shrinkage. It takes typically 7 days. Once done the concrete can be allowed to dry by evaporation. It is equally possible and some would say sensible to keep the moisture entrapped as the hydration reaction simply continues making the concrete gain strength ad infinitum. One of the reasons we see so many sand cement screeds crack is because they are not cured. Many people confuse curing with setting and also with drying. They are all separate functions. In short it is perfectly ok to entrap residual moisture in a screed or concrete provided there is a DPM below it. Liquid membranes are good for this. We used to use bitumen or black jack as it was called. They are usually epoxy these days. There must be a DPM below as the membranes are not designed to cope with the variable vapour pressures caused by rising damp. Hope this helps.
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