Pretending to solve the problem would be kind of pointless.
Application of an effective tanking system or similar which stopped the damp from reaching the inside of the building, damaging finishes, timber etc would be far from pointless.
Alternatively you could ask a specialist damp-proofing company to look at this for you - you will no doubt still lose your tiling but they may offer a cheaper solution than breaking up & renewing your floor slab?
This works out around 17.2m2 - that doesn't allow for any wastage so you may want to order more than this quantity to ensure you allow for cutting, breakages etc.
Cheers
Ade