ADDN/ALTN OF ROOF TREATMENT IN BLDG NO P-35 (JCOs MESS) AND P-27 (RELIGIOUS BLDG) AT 5 RAJPUT AND CERTAIN MINOR WORKS UNDER AGE B/R-I OF GE (SOUTH) DELHI CANTT-10

Amount

Dismantling of brick tiles (laid flat or on edge) on roof surface.laid bedded and pointed in any mortar complete all as specified and as directed.

Demolition of mud in roof, any thickness, including plastering and leeping (whether full thickness removed or only a part there of) complete all as specified and as directed.

M & L for Surface preparation :cleaning of entire roof, removal of loose concrete and filling cracks with polymer modified mortar. Making of angle fillets allaround the periphery of the wall with polymer modified mortar, Supplying & grouting the gaps around the pipe/inserts general purpose grout, a non shrink cementitious water proof grout. This shall conform the following standards: ASTM C 109-1999 18, ASTM C 1107, Grade C complete as per instructions. Providing 3 coats of single component pure, elastomeric polyurethane liquid applied membrane and 40-50 GSM polyester fleece sandwiched between 1st and 2nd coats completely up to the top edge of the pipe etc. complete as per manufacturer’s instructions.Providing and applying single component pure, elastomeric polyurethane liquid applied membrane over the primer RCC surface, having elongation of > 400 % & tensile strength of>2 Mpa with DFT (Dry film thickness) of > 1.2 mm in 2 or more coats. Primer consumption should not be less than 0.250 Kg/sqm.

Notes : (i) The entire treatment shall be carried out as per manufacturer’s instruction/as specified here in after. If there is any differences betrween manufacturer specification and specifications and specification mentioned here in after, the manufacturer specification shall be supperseed and followed. Providing and applying HCFC & CFC free roof insulation PU insulator, a two component system having SC PU Ins Polyol and SC PU Ins Isocyanate that are used in combination to produce closed cell rigid density polyurethane spray foam (density of foam being 45-55kg/cum), over a coat of polyurethane primer applied @ 6-8 sqm per liter, The surface on which spray is applied to be cleaned properly, the moisture content in the surface shall be less than 5% and is to be dried before the application of spray, Polyurethane chemical (A side and B side) shall be sprayed in layers to produce overall 80mm average thick closed cell polyurethane foam over the spraying surface with the help of appropriate foaming Machine. Precautions shall be taken to cover the nerby areas to avoid spray of PU Foam on the other areas. The termination of spray at the corners shall be done as per IS : 12432 (part 3) : 2000, all complete as per manufacturer’s recommendation. Providing and applying dampproof Ultra, fibre reinforced elastomeric liquid water proofing membrane formulated with PU hybrid polymer and reinforcing acrylic fibers having Sun Reflectivity Index (SRI) of 105 on top of concrete roof in three coats @ 10.76 liter/10 sqm. One coat of self-priming of elastomeric waterproofing liquid (dilution with water in the ratio of 3:1) and two coats of undiluted elastomeric waterproofing liquid (dry film thickness of complete application/system not less than 500 microns). The operation shall be carried out after scrapping and properly cleaning the surface to remove loose particles with wire brushes, complete in all respect as per the direction of Engineer-in-charge. When the 2nd coat is wet, the EPDM tape (at corners and edges) shall be inserted between second and third coat, let the material out from the tapes corner.

(ii) Same treatment of Dampproof Ultrafibre reinforced elastomeric liquid water proofing membrane shall be continued to the parapet walls to better envelope the whole area. The coating shall be terminated carefully to the other side of the parapet wall. Laying 150 GSM Geotextile over the final waterproofing treatment. Note:- Contractor shall submit methodology statement with all details in illustrative sketch form and get approved form Engineer-in-charge. All material from single manufacturer. Application shall be carried out by approved applicator of manufacturer and as per recommended by manufacturer. Actual applied area of PU coating with PU foam insulation shall be measured for payment. (iii) The water proofing treatment shall be got carried out by the manufacturer or their authorised applicators. The contractor shall give 10 years guarantee for effectiveness of water proofing treatment, 2.5% of work done amount of this item shall be retained from contractors payment for a period of 10 years reckoned from date of physical completion of this work, or in lieu contractor may deposit bank FDR for the said amount for 10 years which shall be released by GE on expiry of satisfactory completion of 10 years period.

M & L for chipping of spalled and loose concrete and cleaning rust from re-inforcement by sand blasting scrubbing down conrete sufrace with wire brushes cleaning with water allowed to dry and applying a layer of zinc rich epoxy primer as antirust on all exposed reinforcement followed by a layer of bonding coat of approved epoxy adhesive on complete exposed surfaces of concrete to be gunited all as specified and applying two layess of guniting over steel welded mesh 2mm dia of wire and aperture 75mm,total thickness of gunite n.exc 25mm thick (average thirteen) auth cement mortar 1: 2 using OPC 53 grade cement mixed with polycrete admixture @ 2% by weight of cement or as per manufacturers instructions and finally applying cement plaster over gunite surface of required thickness to give even uniform and smooth finish conforming to proper gerometrics in cement mortar ( 1 : 3) to match with the existing surface as in sides and soffits etc of slabs, chajjas, fins, facias, parapets , columns and beams etc complete including necessary scaffolding, shuttering, necessary chases to brick work or RCC members at any height upto 4 storey bldgs all as specified. (Note : Steel welded mesh is to be tightening /welding with the existing re-inforcement ). The cost of welded mesh is deemed to be included in the unit rate quoted.

Taking down rain water pipe (any size) or pattern incl all fittings, head shoes, bends swan necks etc incl removal from site complete all as specified and as directed..

S&F for PVC (SWR) pipes single socketed in any length with rubber ring joints fixed in trenches or in floors, of 110 mm dia complete all as specified and directed.

S&F for PVC (SWR) pipes single socketed in any length with rubber ring joints fixed to walls, of 110 mm dia complete all as specified and directed.

S&F for PVC (SWR) bends any radius 110mm dia bore

M & L Concrete bed to drain pipes including packing under and completely surrounding pipes with concrete after they are laid and tested; in cement concret, 1:4:8, type D-2 for 110 mm pipe.

Dismantling water tanks, capacity exc 250 & n exc 500 letres, and removing to store.

Dismantling water tanks, capacity exc 500 & n exc 1000 letres, and removing to store

S&F 500 litres capacity rotational moulded polyethylene water storage tanks (cylindrical vertical with closed top), hoisted and fixed in position all as specified in SSR Part-I, connecting up pipes including 25 mm bore ball brass valves, high pressure, with polythene float and fly- nut complete, screwed for iron pipe or brass ferrule and fixed.

S&F 1000 litres capacity rotational moulded polyethylene water storage tanks (cylindrical vertical with closed top), hoisted and fixed in position all as specified in SSR Part-I, connecting up pipes including 25 mm bore ball brass valves, high pressure, with polythene float and fly- nut complete, screwed for iron pipe or brass ferrule and fixed.

Taking up or down steel tubing and connections removal to roof, 20 mm bore of pipe.

S & F 25 mm bore high density polyethylene pipes (HDPE) of pressure rating 6 kgf/cm2 fixed complete to walls, ceilings or in floors etc.

Dismantling floor, hearth or wall tiling including cement mortar bedding (but not backing), removing serviceable tiles to store and rubbish off the premises complete all as specified.

M & L Virified Ceramic tiles 10 mm thick (square/ rectangular) polished, area of each tiles not exceeding 0.36 sqm, in floors etc. set and jointed in neat cement slurry and pointed in white or coloured cement to match, laid over and including 15 mm thick screed bed in cement mortar (1:6) complete all as specified.

M & L Virified Ceramic tiles 10 mm thick (square/ rectangular) polished, area of each tiles not exceeding 0.36 sqm, in skirting / dado etc. set and jointed in neat cement slurry and pointed in white or coloured cement to match, laid over and including 10 mm thick plastered in cement mortar (1:4) complete all as specified.

Demolition of cement concrete( un reinforced) in ground floors and pavings n exc 15 cm thickness (below or above ground level)

Demolition of Stone slabs and tiles laid, bedded and pointed of any description or thickness in floors, aprons etc.

M & L Machine cut kota stone slab flooring 20-25mm thick over and including 20mm thick cement screed base, in CM (1:4), laid and jointed with grey cement slurry mixed with pigment to match the shade of the slab including rubbing and polishing complete

M & L Kota stone slab 20-25mm thick in riser of steps, skirting, dado and pillar laid over and including 10 mm thick cement plaster (1:4) and jointed with grey cement slurry mixed with pigment to match the shade of the slab including rubbing and polishing complete.

M & L 25 mm thick Cement concrete type B-1, 1:2:4 (20mm graded aggregate) complete all as specified.

M & L cement concrete, 1:3:6, type C-1 (using 20 mm graded stone aggregate) in lintels upto 1.5m clear span, cills, steps; seismic and other similar bands, plinth protection, string courses, lacing courses, copings, kneelers, apex stones, bed plates, water troughs and the like including weathering, slightly rounded or chamfered angles and throating as directed.

M&L Mild steel TMT bars 10mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends & binder, ties, rings, etc. and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips.

Demolition of Brickwork or stone/ boulder masonry, built in cement or cement lime mortar including all quoins, arches, pillars, etc, but excluding ashlar facings, dressed stonework and precast concrete articles.

M & L Brickwork with subclass ‘B’ bricks, straight or curved on plan exc 6m mean radius built in cement mortar (1:4) complete all as specified.

Taking down cement or cement lime plaster, any description, on brick or stone walls, etc including raking out joints, hacking for key, scrubbing down with water etc complete.

M&L 15mm thick Ready Mix Plaster (Make : Ultratech radiplast/Birla Aerocon RMP/ACC Suraksha RMP) on brickwork or concrete surfaces of the wall finished even and smooth complete all as specified and directed.

Taking down Chowkhats or frames with shutters (without taking off shutters from the frames) not exc. 1.5 Sqm each

S & F powder coating anodised aluminium frame (minimum thickness of powder coating 50 micron) for doors, windows, ventilators with one or more rebates including joining cleat for fixing etc. complete all as specified.

S & F powder coated Anodised aluminium window and ventilator shutters, side hung type without sash bars, aluminium sections weighing 0.55 kg/m including necessary joining cleats, glazing clips, rubber packing, anodised aluminium snap beading, screws, anodised aluminium fittings such as peg stays 150mm long (1 no.). hinges type B-21 100mm long (2 no.) suitable handle (1 no.), powder coating of any colour (Thickness or powder coating not less than 50 micron) complete all as specified

S & F powder coated Anodised aluminium window and ventilator shutters, fixed type without sash bar, aluminium section weighing 0.55 kg/m including necessary joining cleats, glazing clips, rubber packing, anodised aluminium snap beading, screws etc., powder coating of any colour (Thickness or powder coating not less than 50 micron) complete all as specified.

S & F 7.5 mm thick Aluminium Deco grll Aparture as per manufacturing instruction and as approved by GE complete all asspecified. ( The screw of all aparture should be min two screw over all the aluminium deco grill)

S & F 3mm thick Sheet glass, ordinary quality and glazing with oil putty in square n exc 0.5 sq. m in each pane complete all as specified.

S & F Sheet glass, ordinary quality and glazing with oil putty in square exc 0.5 sq. m in each pane complete all as specifeid.

M & L preparation of new plaster surfaces of wall and applying water proof wall care putty to achieve even and smooth surface and then applying two or more coat 100% anti fungal acrylic emulsion exterior grade whether proof paint over and including one coat of exterior primer complete all as specified and directed. Note :- Primer should be compatible with the paint.

M & L preparation of old plaster surfaces of wall and applying water proof wall care putty to achieve even and smooth surface and then applying two coat 100% anti fungal acrylic emulsion exterior grade whether proof paint over and including one coat of exterior primer complete all as specified and directed. Note :- Primer should be compatible with the paint.

M & L for Providing cement concrete 1:2:4 type B-1 using 20mm graded stone aggregate in roof kerbs or mud stops, rounded or chamfered and hold fast on edge including necessary form work complete all as specified and as directed.

Cutting holes into or through brick wall bult in cement mortar or cement lime mortar and stone walls n.exc 150 sq.cm including making good to the original surface

Cutting chases, pining in making good to facing where required and pinting in cement to , cutting not exc 10cm girth in brick walls.

S & F steel work in tubular trusses including special shaped washer etc. complete using ERW or induction butt welded tubes conforming to IS 1161-1979 grade St.-240 complete all as specified and as directed by the Engineer-in-Charge

S&F Pre-printed galvalume aluminium zink coating GI based corrugated steel sheet 0.50 mm thick of an colour having tensile strength of 550 Mpa as in roof overing/cladding to wall, fixed with self tapping screw all as specified and directed.

S&F Structural Steel in roof, purlins crane of angle or other section gusset plates, Flat Iron rails braces etc, drilled for fixing, and other covering r etc to be prepared for hanging and sliding with and including either hooks and hinges and other covering running rails and guides and hanging also fastening and fixing complete. Fe- 410 Grade E-250 quality -Bl

M & L for applying two coats of synthetic enamel paint over a coat of red oxide primer on newly steel surfaces of any description over 10 cm in width or grith, not otherwise described including preparation of surfaces.

Surface excavation in soft/loose soil, not exceeding 30 cm deep and averaging 15cm deep and getting out, complete all as specified

M&L for 75 mm thick cement concrete 1:4:8 type D-2 using 40 mm graded stone aggregate in sub base.

Machine pressed precast concrete interlocking paver block M-35 Grade.with grey cement and pigment, any shape and size yellow/red colour confirming to IS 15658-2006 of 60 mm thickness.

M&L for sand cushion under layer of floor all as specified and directed.

Removing of excavated material exc 250 mtr and not exceeding 500 mtr depositing where directed all as specified and directed.

M&L Brick work with sub class B bricks straight or curved on plan exc 6m mean radius built in CM 1:6 Complete all as Specified and directed

M&L for renderning 15 mm thick in CM 1:4 mixed with WPC on any faces of brick/concrete surfaces finished even and fair with out using extra cement complete all as specified.

M&L for preparation for applying two coat of Premium acrylic emulision paint having VOC less than 50 gm/littre and UV resistence as per IS 15489 : 2004, Alkali fungal resistence dirt resistance exterior paint of required shade (Company Depot Tinted) with silicon additives @ 1.43 litre/10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/10 sqm over new surfaces.

Excavating in post holes in soft loose soil (or similar holes) each n exc 0.5 cu. m, getting out , returning, filling in and ramming earth or broken rubble mixed with earth around, in layers not exceeding 25 cm all as specified and directed.

S&F, Fe 410-W (Gde E- 250) quality Joist, channel, angle, or tee sections, fixed independently, without connecting plates, etc. (cut to ordinary lengths i.e. within 20mm of the length indicated)

Supply only chain link fencing incl line wires any mesh size & type to any type of standards rails straining bolts etc. incl provision of binding wire.

Fixing only chain link MS galavnised fencing of any description and size complete.

Note :- The contract sum shall be after deducting the amount of credit shown in Sch of Credit of this tender

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