I have a problem with the lounge area of my bungalow built 1960 in that there is a bulge in the floor and cracks on the exterior walls have occurred causing damage to brickwork.
I have made excavations and find that the floor is a concrete block under which is a deep layer of red shale below this it appears there is another slab which covers the whole area.
Samples have been taken and analysed and suphate level 3 has been diagnosed.
Any help or advice as to what can be done to rectify the matter would be appreciated. P.S. Is the lower layer of concrete likely to be affected.