Providing and applying of swell able type water stop tape, 19mmx25mm thick in linear meter (expansive nature) for construction joints treatment of RCC structure such as raft slab retaining walls, water storage tank and at the junctions of raft slab with the retaining walls etc. After cleaning the surface, one coat of required primer for swell able water stop tape shall be applied throughout the length of the joint @ 3.78 litre per 240 running meter. Over the primed surface swell able type water stop tape shall be placed. The work shall be carried out all complete as per specification and the direction of the Engineer-in-Charge. The product performance shall carry guarantee for 10 years against any leakage.