Renovation of Bathroom, WC, Passage and Kitchen Sink Area in 20 Flats (10 each of Class I and III) at Reserve Bank of India (RBI) Staff Quarters, Byculla, Mumbai

SECTION 01 - DISMANTLING / DEMOLITION WORK

Carefully dismantling and removing the following existing items of any size, at any level/floor, without any damage to adjacent structure/walls,floor,etc by using manual tools, carting away the debris including loading, unloading, transport, mathadi charges, etc. complete. Contractor to pack the debris properly in bags and shift from site to downstairs up to debris location/identified location in the colony premises without making any nuisance/incovenience to the Ocuupants/Residents. Contractor to clean the area/surfaces after the dismantling work thoroughly using water, wire brush or any other approved methods, preparing the surface to receive the new work (i.e bed/back mortar for floor & wall dado tiles, granite slab, cement concrete/brick work, plastering, water proofing work, doors & windows,etc.) incluing making good to the damages with ready mixed cement plaster or plain cement concrete (1 cement : 2 sand : 4 aggregate). Contractor has to remove the debris from time to time and dump the same at municipal approved dumping yard, ect. complete and as directed: For Both Class-I & III flats a) All sanitary and plumbing fittings/fixtures including wash basin, EWC/IWC with flush tank, waste water connections, grating, concealed GI/CI/CPVC/UPVC/PVC pipe lines of any sizes, etc. The work shall include plugging of the water inlet temporarily without affecting water supply to the other areas/flats etc. complete as directed by the Bank's Enginner – per flat. b) Bath & WC Doors:- Doors of granite stone slab frame with shutter made of aluminum frame with backalite panel / wooden door frame with wood panelled shutter of approxi.size 0.75m x 2.10m – 02 nos. per flat (i.e Bath & W.C) inclding all hardwares of any type - per flat.

Carefully dismantling of the existing Brick bat coba, cement concrete floor/bed, flooring tiles (ceramic/vitrified) with bed mortar, including water proofing plastering in WC/BATH/Kitchen mori upto RCC slab top including cleaning the surface,etc. complete.

Rebate for taking away the salvageable/scrap items removed and stacked under the above item No.1.1 & 1.2 Note: Contractor to quote for the buyback amount to be paid to Bank for the above Items taken out from the colony premises by him.

SECTION 02 - REPAIRS / STRUCTURAL REPAIRS

Structural Repairs to R.C.C Members:- Carefully chipping of unsound/weak concrete material including cement mortar plastering from RCC members such as slabs, beams, columns, lintels, etc. with manual Chisel and/ or by standard power driven percussion type or of approved make including tapering of all edges, making square shoulders of cavities, cleaning the exposed concrete surface and reinforcement with wire brushes etc. and disposing of debris from the colony premises including all lead and lifts, etc complete and as directed. a) Removal of rust on steel reinforcement: Providing & applying rust remover of approved make to clean reinforcement bars & allowing it to react for specified time and cleaning the reinforcement of total rust by scrapping or using mechanical wire brush around the reinforcement bars to give it a totally rust free finished steel surface using suitable tools and equipment, etc. all complete and as directed by the Bank's Engineer. b) Passivator coat on steel reinforcement: Providing and applying one component, Polymer modified, cementitious anti-corrosive primer of approved make (having the technical parameters mentioned in material specifications) formulated to provide dual protection of a polymeric barrier and an integral corrosion-inhibiting system, to the existing steel and additional steel reinforcement provided before patching of damaged areas, using suitable tools and equipment inclusive of material, manpower and equipment, etc. all complete as directed. (Mode of measurement: concrete surface area with exposed reinforcement).

Ready Mix Plaster: Providing and applying average 12 mm to 20 mm thick ready mix cement plaster of approved make on damaged internal walls by carefully chipping & removal of damaged plaster from column, beams and walls , ceiling & redoing it (Removing & redoing plaster) Identifying loose plaster by tapping and carefully, breaking and removing damaged plaster by chiselling including any other finishing layer including removing loose material etc. at any / all level with help of small chisel and hammer weighing not more than 5 pounds and as directed etc. all complete. The quoted rate shall include for surface preparation, cost all materials, labour, tools & plants, scaffolding, curing, disposing off the debris from the colony premises including proper covering/protecting of all plumbing, carpentry & electrical fittings/fixtures, furniture, etc and cleaning of the area/floor, glass panes, etc. all complete as directed. Note: Prior to the commencement of the work, all masonry walls/non-structural members shall be thoroughly checked using a suitable hammer / plastic hammer to identify areas emitting a hollow sound or exhibiting signs of damage. Such identified areas shall be clearly demarcated with paint in regular geometric shapes (such as squares, rectangles, trapezoids,etc). and the same shall be kept informed to the Bank's Engineer.

SECTION 03 - WATERPROOFING WORK

PU Coating for BATH/ WC sunken portion & kitchen mori with water proof plastering :- i) PU Coating: Providing and applying single component Polyurethane resins bonded elastomeric waterproofing liquid membrane with chemical of approved make, properties on top of well prepared parent concrete surface in three coats. One coat of self-priming of Polyurethane resines bonded elastomeric waterproofing liquid (dilution with water in the ratio of 3:1 or as per manufacturers specification) and two coats of undiluted Polyurethane resines bonded elastomeric waterproofing liquid at a consumption rate of 500 gm per square metre per coat with brush/roller application. The operation shall be carried out after scrapping and properly cleaning the surface to remove loose particles with wire brushes, complete in all respect finish as per the manufacturers specifications and as directed by the Bank`s Engineer. (The coating shall be done on walls upto 300mm above the floor level.) Mode of Measurement - Application Area should be measured and paid for. ii) Waterproof Cement Plaster:- The top surface of the PU coating and walls upto floor level shall be applied with average 15 mm thick using readymix plaster admixed with waterproof chemical compound from approved manufacturer equivalent as per manufacturer`s specification including cement float coat finishing, curing, etc. complete all as directed by the Bank`s Engineer. Sunken portion shall be tested by ponding water for at least three days so as to ensure no leakages/seepages of water from the bottom of the slab. Note: Contractor shall furnish Leak proof performance guarantee in the form of "Bank Guarantee for Waterproofing Performance" for 5 years for all the waterproofing treated areas on stamp paper.

Brickbat Coba:- Providing, laying and filling sunken area of toilet block with well burnt bricks or sliced brick bats of approved size in required layers using ready mix plaster mixed with approved waterproofing compound as per manufacturer's specifications including proper curing etc. complete all as directed by the Bank`s Engineer. Mode of Measurement - Actual Volume of the Brickbat should be measured and paid for. Note: Contractor shall furnish Leak proof performance guarantee in the form of "Bank Guarantee for Waterproofing Performance" for 5 years for all the waterproofing treated areas on stamp paper.