Good Water resistant thick bed floor adhesive

[Sam2494]

*what does this actually mean... what has waste land got to do with it... soluble salts are in the water in the entire water table throughout the UK, off into the sea and over into the rest of the world... the efflorescence is not caused by salts in the ground water its caused by evaporation of moisture from the surface of the grout which leaves behind calcium, magnesium and sodium carbonate (depending on the makeup of the background materials) on the surface of the floor. This appears as white chrystals. It is nowt to do with ground borne moisture... if it was how do you think efflorescence appears on brickwork at the forth story of a new house...

** A systm of control of moisture in buildings is a requirement of part C of the building regulations. It is usually achieved in ground borne floor slabs by means of a polythene DPM. Tiling or no tiling is completely irrelevant.

I meant to say "Marshland" sorry, if the property is in an area surrounded by a lot of marshland then naturally there is going to excessive amount of moisture in the ground. Which then would lead to more than usual moisture coming up through the floor slab, making its way through grout joints and then there would be large amounts of moisture to evaporate which would lead to essofflerecent.

I understand that essofflerecent isn't caused by ground moisture as like you say take brickwork for instance, that's caused from any water on the Surface evaporating and reacting to cause essofflerecent.

Yes I know that an integral polythene DPM is what stops rising damp entering a floor slab, an epoxy just creates a barrier to stop it coming through onto the surface of the slab.