Water proofing treatment of RCC structures (after making the surface clean, dry & free from all internal voids or honey combs ), with Zycosil/equivalent water proofing Solution (1 litre of Zycosil / equivalent & 20 litres of potable water stirred first & 2 litres of Zycoprime / equivalent added and stirred (total 23 litres)) using two coats till it meets the saturation level and testing as per RILEM or by water drops test in which water drops do not absorb but drops remain or rolls.