REPAIRS TO ROOF WATER PROOF TREATMENT, SUNKEN FLOORS, WALLS, CHAJJAS, PLASTER, PLINTH PROTECTION AND OTHER MISC WORKS FOR OTM AND MD ACCN OF INSPECTION ORGANISATION, AUNDH UNDER GE MH AND RH KHADKI

Demolition of cement concrete unreinforced of any description and in any position, not otherwise specifically provided for complete all as specified and directed.

M & L for 40 mm thick cement concrete 1:2:4 type B-0, using 12.5mm graded stone aggregates for filleting, benching, slightly rounding or chamfering on edges, filling undulations / depressions in roof surface, providing concrete platform for tanks wherever required as directed.

Taking down / removing existing water proofing treatment from RCC roof slab including removal of plaster bed below felt / membrane and disposal of the same to distance exceeding 50m but not exceeding 100m as and where directed and M & L for 10 mm thick screeding / rendering in cement mortar 1:4 on concrete roof surface, using Water Proofing Compound @ 3% by weight of cement, surface finished even and smooth without using extra cement all as directed. Note: Water Proofing Compound shall be measured and paid separately.

Supply only intergral water proofing compound.

M & L for cleaning the plastered /concrete surface with wire brush and applying water proofing treatment as under:- (a) Apply one coat of water based bituminious primer @ 0.20 Kg per Sqm. (b) Laying APP polimerised modified membrane weighing not less than 3.5Kg / sqm by torch application method. (thickness of membrane shall not be less than 3 mm). (c) The overlap for APP membrane shall be 75 mm on longitudinal direction and100 mm on transverse direction. (d) Finally applying a coat of solar reflective bituminious aluminium paint @0.15 Kg/Sqm over the membrane.

Disconnecting existing tanks exc 250 & not exc 500, setting asides (or lowering if required) for repairs, cleaning, waterproofing etc and hoisting if required reconnecting and re-fixing in position.

Disconnecting existing tanks exc 500 & not exc 1000, setting asides (or lowering if required) for repairs, cleaning, waterproofing etc and hoisting if required reconnecting and re-fixing in position.

Cleaning the surface with wire brush, detecting sources of leakages and removing/taking down unsound treatment/surface and M&L for carrying out non-destructive waterproofing treatment to sunken portion of slab, floor and walls of bath, WC, WHB and floor traps (combined unit) by using construction chemical method as hydrophobic PU grouting, etc, with first course of injection MDI based PU foam and second course of injection PU plain all as per manufacturers instruction, etc, complete and as directed. The PU foam shall have 100% solids and solvent free, and shall expand 30-40 times its volume at liquid stage in presence of water, the PU plain injection shall have minimum 100 CPS viscosity and shore hardness minimum 50. Make: PIDILITE or equivalent

Making hole and M&L for fixing thr metallic packer for hydrophobic PU foam and Sealer as per manufacturers specification. The PU foam shall have 100% solids and solvent free, and shall expand 30-40 times its volume at liquid stage in presence of water, the PU plain injection shall have minimum 100 CPS viscosity and shore hardness minimum 50. Make: PIDILITE or equivalent

M&L for the tile joint chemical cleaning and re-grouting carefully by washing the existing tille with heavy duty tile cleaner preferbly of M/S Pidilite or equivalent cleaner, again washing with fresh jet water, scratching the joints and filling the same with (white/matching colour) epoxy tile grout of M/s Pidilite, ROFF RTM epoxy or equivalent, or equivalent , curing , cleaning the surface etc, complete all as directed by Engr-in-Charge and as per the sample done at ground level.