The surface of the slab will be thoroughly cleaned. The entire area would be scanned and the cracks and loose concrete, thus found in the slab will be grouted by pressure with cement slurry. Due to pressure grouting cement slurry will reach the vacuum in the slab. A base coat of 12mm thk waterproof plaster will be provided over the entire slab. After 2-3 days curing, a layer of brickbats is to be laid over the slab with appropriate gradients. The water ponding will be done over it for 3-4 days. Later it will be finished with fresh cement waterproof mortar with rough finished surface to receive china mosaic or the false marking of 1’-3”x 1’-3”. Again the water will be ponding for 15 days for curing and testing.
We treat the r.c.c. tank with our “injection grouting process”. In this process each and every corners and honeycomb surface will to be treated by pressure grouting with cement slurry. So that cement slurry reaches in vacuum in the slab and r.c.c. pardi. The floor of the tank will have metal (aggregate) work. Floor, ceiling and side walls are treated by joint less waterproof plaster with smooth finished surface. Each and every coat needs 2-3 days gap between them for proper curing and setting. After the final coat tank, should be filled by water for curing and testing.
W.C.and bath are to be completed in three coats. A base coat layer of 12mm thk waterproof plaster is to be provided over the entire inner surface of the w.c. and bath. After 2-3 days curing the brickbats will be fixed. The brickbat is needed 3-4 days curing. The final coat is finished with rough surface to receive tiles or marbles. After final coat the w.c. and bath will be ponding by water for testing and curing.
The basement is treated by our “box type method”. In this method the shahbad stones are used. Our treatment starts on the p.c.c. metal work is to be done over the p.c.c. before metal work if found any water, comes through the p.c.c. will be injected by cement slurry. After 2-3 days curing, shahbad stones are provided over it. The joints of the shahbad stones are later grouted with cement slurry and the 12mm size of aggregate is poured in the joints. If the water pressure is more, then to release the pressure some sockets of pipes would be fixed (these sockets should be grouted after the raft slab.). For the side walls, the shahbad is fixed with cement to the wall with keeping ¼” gap between wall and shahbad stone. Later this gap will be grouted by cement slurry. The entire area will be applied by waterproof plaster with smooth finished surface.
Note: a branded company’s waterproof compound shall be used.
