Civil Repair and Renovation work of old shed at CSIR NEERI Zonal Center Kolkata

Amount

Dismantling Gypsum/ aluminium/ Wooden partitions , fixed glazing and false ceiling including disposal of unserviceable material and stacking of serviceable material with in 50 meters lead as directed by Engineer-in-charge.

Demolishing brick work manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in charge.

In cement mortar

Dismantling roofing including ridges, hips, valleys and gutters etc., and stacking the material within 50 metres lead of:

Asbestos cement

Dismantling of Indian type Water Closet along with flushing cystern / Europian type Water Closet/Urinals along with flushing cystern / Wash basin / Water Heater with all inlet & outlet puprline / Sintex Over Head Water Tanks at all floor level along with all fixtures of any size including stacking of useful materials in NEERI premises and disposal of unserviceable materials with all lead and lift as per direction of Engineer-in-charge:

Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead.

Dismantling all type of tile work in wall, floors and roofs laid in cement mortar including it's base plaster, P.C.C. & stacking material within 50 metres lead.

For thickness of tiles 10 mm to 25 mm

Dismantling G.I. pipes (external , Internal & concealed) after taking out the pipes, manually/ by mechanical means including stacking of pipes within 50 metres lead as per direction of Engineer-in-charge :

15 mm to 40 mm nominal bore

Dismantling doors, windows and clerestory windows (steel or wood) shutter including chowkhats, architrave, holdfasts etc. complete and stacking within 50 metres lead :

Of area 3 sq. metres and below

Dismantling old rain ,waste water C.I. pipes including excavation if required and refilling , taking out the pipes, manually /by mechanical means stacking of pipes within NEERI premises with all lead as per the direction of Engineer-in-charge:

Up to 150 mm diameter

Demolishing cement concrete manually/ by mechanical means including refiling and disposal of material within 50 metres lead as per direction of Engineer - in - charge.

1:3:6 or richer mix

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

Removing dry or oil bound distemper, plastic emulsion, water proofing cement paint and oil paint by scrapping, sand papering and preparing the surface smooth including necessary repairs to scratches etc. complete.

Diluting and injecting chemical emulsion for POST-CONSTRUCTIONAL anti-termite treatment (excluding the cost of chemical emulsion) :

Treatment of existing masonry using chemical emulsion @ one litre per hole at 300 mm interval including drilling holes at45 degree and plugging them with cement mortar 1:2 (1 cement: 2 coarse sand) to the full depth of the hole

With Chlorpyriphos/Lindane E.C. 20% with 1% concentration

Supplying chemical emulsion in sealed containers including delivery as specified for post constructional anti-termite treatment.

Chlorpyriphos/ Lindane emulsifiable concentrate of 20%

Brick work with non modular fly ash bricks conforming to IS:12894, class designation 10 average compressive strength in super structure above plinth level up to floor V level in :

Cement mortar 1:4 (1 cement : 4 coarse sand)

12mm cement plaster of mix:

1:4 (1 cement: 4 fine sand)

18 mm cement plaster in two coats under layer 12 mm thick cement plaster 1:5 (1 cement: 5 coarse sand) and a top layer 6 mm thick cement plaster 1:3 (1 cement : 3 coarse sand) finished rough with sponge

Providing and laying cement concrete in retaining walls, return walls,walls (any thickness) including attached pilasters, columns, abutments, pillars, posts, struts, buttresses, string or lacing courses,parapets, coping, bed blocks, anchor blocks, plain window sills, fillets,sunken floor etc., up to floor five level, excluding the cost of centering, shuttering and finishing:

1:2:4(1 cement:2 coarse sand: 4 graded stone aggregate 20mm nominal size)

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.-

All kinds of soil

Supplying and laying boulder soling (soling stone 125 to 45 mm)and voids filled with murum below floor and plinth including watering compacting and consolidating in layer not more than 150mm thick etc. complete

Providing and fixing 15-18 mm thick gang saw cut mirror polished and prepolished machine cut of any colour shade and size for kitchen platforms, vanity counters, window sills , facias and similar locations of required size of approved shade, colour and texture laid over 20mm thick base cement cement, mixed with matching pigment, epoxy touch ups, including rubbing, curing and polishing, edge full moulding on both side or wherever necessarry as per drawing and instruction of Engineer Incharge etc. complete at all levels.

Granite of any colour and shade

Providing and laying rectified Glazed Ceramic floor tiles of size 300x300mm or more (thickness to be specified by the manufacturer), of 1stquality conforming to IS : 15622, of approved make, in colours White,Ivory, Grey, Fume Red Brown, laid on 20 mm thick cement mortar 1:4(1 Cement: 4 Coarse sand), jointing with grey cement slurry @ 3.3kg/ sqm including grouting the joints with white cement and matchingpigments etc., complete.

Providing and fixing 1st quality ceramic glazed tiles conforming to IS : 15622 (thickness to be specified by the manufacturer ) of approvedmake in all colours, shades except burgundy, bottle green, black of any size as approved by Engineer-in-Charge in skirting, risers of steps and dados over 12 mm thick bed of cement Mortar 1:3 (1 cement: 3 coarsesand) and jointing with grey cement slurry @ 3.3kg per sqmincluding pointing in white cement mixed with pigment of matching shadecomplete.

Providing and fixing factory made single extruded WPC (WoodPolymerComposite) solid decorative type flush door shutter of required size comprising of virgin polymer of K value 58-60(Suspension Grade), calcium carbonate and natural fibers (woodpowder/ rice husk/wheat husk) and non toxic additives (maximumtoxicity index of 12 for 100 gms) having minimum density of 650 kg/cum and screw withdrawal strength of 1800 N (Face) & 900 N Edge),minimum compressive strength 50 N/mm2, modulus of elasticity850 N/mm2 and resistance to spread of flame of Class A categorywith property of being termite/borer proof, ater/moisture proof and fire retardant. WPC to be laminated with PVC foil of minimum 14microns thick of approved design pasted with hot melt adhesive on both faces of shutter and fixing with stainless steel butt hinges of required size with necessary full body threaded star headed countersunk S.S screws, all as per direction of Engineer-In-Charge.

30mm Thick

Providing and fixing factory made panel PVC door shutter consisting of frame made out of M.S. tubes of 19 gauge thickness and size of 19 mm x 19 mm for styles and 15x15 mm for top & bottom rails. M.S. frame shall have a coat of steel primers of approved make and manufacture. M.S. frame covered with 5 mm thick heat moulded PVC 'C' channel of size 30 mm thickness, 70 mm width out of which 50 mm shall be flat and 20 mm shall be tapered in 45 degree angle on both side forming styles and 5 mm thick, 95 mm wide PVC sheet out of which 75 mm shall be flat and 20 mm shall be tapered in 45 degree on the inner side to form top and bottom rail and 115 mm wide PVC sheet out of which 75 mm shall be flat and 20 mm shall be tapered on both sides to form lock rail.

Top, bottom and lock rails shall be provided both side of the panel. 10 mm (5 mm x 2 ) thick, 20 mm wide cross PVC sheet be provided as gap insert for top rail & bottom rail, paneling of 5 mm thick both side PVC sheet to be fitted in the M.S. frame welded/ sealed to the styles & rails with 7 mm (5 mm+2 mm) thick x 15 mm wide PVC sheet beading on inner side, and joined together with solvent cement adhesive.An additional 5 mm thick PVC strip of 20 mm width is to be stuck on the interior side of the 'C' Channel using PVC solvent adhesive etc. complete as per direction of Engineer-in-charge, manufacturer's specification & drawing .

30 mm thick plainPVC door shutters

Providing and fixing factory made single extruded WPC (Wood Polymer Composite)solid oor/window/Ceosetory windows & otherFrames/Chowkhat comprising of virgin PVC polymer of K value 58-60 (Suspension Grade), calcium carbonate and natural fibers (woodpowder/ rice husk/wheat husk) and non toxic additives (maximumtoxicity index of 12 for 100 gms) fabricated with miter joints afterapplying PVC solvent cement and screwed with full body threaded.star headed SS screws having minimum frame density of 750 kg/ cum, screw withdrawal strength of 2200 N (Face) & 1100 N (Edge),minimum compressive strength of 58 N/mm2, modulus of elasticity900 N/mm2 and resistance to spread of flame of Class A categorywith property of being termite/borer proof, water/moisture proof and fire retardant and fixed in position with M.S hold fast/lugs/SS dashfasteners of required dia and length complete as per direction ofEngineer-In- Charge.

Note: For WPC solid door/window frames, minus 5mm tolerance in dimensions i.e depth and width of profile shall be acceptable. Variation in profile dimensions on plus side shall be acceptable but no extra payment on this account shall be made.

Frame size 65 x 100 mm

Providing and fixing aluminium work for windows and ventilators with extruded built up standard tubular sections/ appropriate Z sections and other sections of approved make conforming to IS: 733 and IS: 1285, fixing with dash fasteners of required dia and size, including necessary filling up the gaps at junctions, i.e. at top, bottom and sides with required EPDM rubber/ neoprene gasket etc. Aluminium sections shall be smooth, rust free, straight, mitred and jointed mechanically wherever required including cleat angle, Aluminium snap beading for glazing / paneling, C.P. brass / stainless steel screws, all complete as per architectural drawings and the directions of Engineer-in-charge. (Glazing, paneling and dash fasteners to be paid for separately) :

For fixed portion: including Powder coated aluminium (minimum thickness of powder coating 50 micron) shade as approved by the Engineer in charge.

For shutters: of doors, windows & ventilators including providing and fixing hinges/ pivots and making provision for fixing of fittings wherever required including the cost of PVC / neoprene gasket required (Fittings shall be paid for separately) including Powder coated aluminium (minimum thickness of powder coating 50 micron)shade as approved by the Engineer in charge.

Providing and fixing consealed lock (best make of approved quality in pair) for aluminium window including necessary cutting and making good etc. complete.

Providing and fixing glazing in aluminium door, window, ventilator shutters and partitions etc. with EPDM rubber / neoprene gasket etc. complete as per the rchitectural drawings and the directions of engineer-in-charge . (Cost of aluminium snap beading shall be paid in basic item):

With float glass panes of 5 mm thickness

Providing and fixing 9mm thick prelaminated particle board for shutter flat pressed three layer or graded wood particle board , in panelling fixed in platform shutters frames with stainless steel screws etc. complete as per architectural drawings and directions of engineer-in-charge.

Providing and fixing anodised aluminium grill (anodised transparent or dyed to required shade according to IS: 1868 with minimum anodic coating of grade AC 15) of approved design/pattern, with approved standard section and fixed to the existing window frame with C.P. brass/ stainless steel screws @ 200 mm centre to centre, including cutting the grill to proper opening size for fixing and operation of handles and fixing approved anodised aluminium standard section around the opening, all complete as per requirement and direction of Engineer-in-charge. (Only weight of grill to be measured for payment).

Providing and fixing stainless steel grade 304 mosquito net/wire gauze of average width of aperture 1.2-1.4mm with wire of 26 gauge mm with powder coated suitable aluminimum section (8X18 mm), 1.2mm th. for doors, windows in aluminium window etc. complete of make as approved by the Engineer in charge.

Providing and fixing aluminium/SS sliding door bolts ISI marked anodised (anodic coating not less than grade AC 10 as per IS : 1868) transparent or dyed to required colour or shade with nuts and screws etc. complete :

Providing and fixing aluminium handles/SS ISI marked anodised (anodic coating not less than grade AC 10 as per IS : 1868) transparent or dyed to required colour or shade with necessary screws etc. complete :

Providing and fixing aluminium/SS hanging floor door stopper ISI marked anodised (anodic coating not less than grade AC 10 as per IS : 1868) transparent or dyed to required colour and shade with necessary screws etc. complete.

Twin rubber stopper

Providing and fixing aluminium/SS tower bolts, ISI marked, anodised (anodic coating not less than grade AC 10 as per IS : 1868 ) transparent or dyed to required colour or shade, with necessary screws etc. complete :

Providing and fixing aluminium extruded section body tubular type universal hydraulic door closer (having brand logo with IS:3564 embossed on the body, door weight 36 kg to 80kg and door width 701mm to 1000mm) (make- Godrej or as approved) with double speed adjustment with necessary accessories and screws etc. complete.

Filling the gap in between aluminium frame & adjacent RCC/ Brick/Stone work by providing weather silicon sealant over backer rod of approved quality as per architectural drawings and direction of Engineer-in-charge complete. Upto 5mm depth and 5 mm width

Providing and applying white cement based putty of average thickness 1 mm, of approved brand and manufacturer, over the plastered wall surface to prepare the surface even and smooth complete.

Finishing with Deluxe Multi surface paint system for interiors using Primer as per manufacturers specifications including scafolding :

Two or more coats applied on walls @ 1.25 ltr/10 sqm over and including one coat of Special primer applied @ 0.75 ltr / 10 sqm

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade :

Two or more coats on new work

Steel work welded in built up sections/ framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required.

In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works

Providing and placing on terrace (at all floor levels) polyethylene water storage tank, IS : 12701 marked, with cover and suitable locking arrangement and making necessary holes for inlet, outlet and overflow pipes but without fittings and the base support for tank.

Providing & Fixing 15mm C.P. brass Concealed stop cock with protection cap( ALD-083 of Jaquar) with exposed part kit of concealed stop cock with fitting sleeve, operating lever and adjustable wall flange with seal(CON-087FTK) , washer complete, including cutting & making good the wall wherever required. As per list of approved make or Equivalent or as directed by Engineer Incharge

Providing and fixing white vitreous china wall hung wash basin 585x485x195mm aprox (Model -OPS-WHT-15305 of jaquar) with half pedestal wall Hung basin with fixing accessories and fittings / bracket including 15mm C.P brass Pillarcock auto closing system(Jaquar-PRS-031 or equivalent ), C.P Bottle Trap Casted Heavy (Jaquar-ALD769L 250/300X190 or equivalent), 32mm C.P. brass waste coupling(Jaquar-ALD705 80mm height or equivalent) full thread, brass angular stop cock with wall flange(CON-059KN), CP copper connecting pipe 450mm( ALD-805B) including cutting and making good the walls wherever required etc. Complete as per the instruction of Engineer incharge.

Providing and fixing vitreous china rimless wall hung WC with UF soft closing slim seat cover, hinges, accessories set (CNS-WHT-963UFSM) with all fittings & wall hung cistern with 39mm L bend drainage & extension pipe withgasket & O-ring & instalaltion kit ( top cover with ledge(ESH-WHT-184AN of jaquar essco) with installation of complete, brass angular stop cock with wall flange(CON-059KN), CP copper connecting pipe 450mm( ALD-805B) etc complete cutting and making good the walls and floors wherever required as per approved make of Jaquar or approved equivalent make. The approved make like Jaquar/Kohler make. Size 380x515x360mm

Providing and fixing white vitreous china flat back urinal of size 385x325x635mm ( URS-WHT-13253N of jaquar make) Back inletwith fixing accessories with including Auto closing concealed urinal flush valve with flange( PRS-073 of jaquar prismatic series) including SS connector pipe flushing of jaquar, unions and clamps (all in C.P. brass) with waste fitting ,including painting of fittings and cutting and making good the wallsand floors wherever required.

Providing and fixing 630x445mm Swivel Mirror (AKP-35795 of jaquar) for wash basin rectangular shape for gents and ladies toilet from approved make such as Jaquar/Kolhar/Roca having beveled edge with required fixtures such as bracket and screws etc. complete as per the direction of Engineer-in-charge.

Providing and fixing C.P brass Quarter turn two way Bib cock with wall flange(CON-041KN of jaquar) of approved make as per the instruction of Engineer-In-charge. 15 mm nominal bore.

Providing and fixing health faucet(jetspray)( ALD 573 of jaquar) of 8mm dia. 1 meter long flexible tube and hook of approved make as per the instruction of Engineer-In-charge.

Providing and fixing G.I. Pipes complete with G.I. fittings and clamps,i/c making good the walls etc. concealed pipe, including paintingwith anti corrosive bitumastic paint, cutting chases and making good the wall etc.

15 mm nominal outer dia Pipes

Providing and fixing G.I. pipes complete with G.I. fittings and clamp including cutting and good the wall etc

25 mm nominal outer dia Pipes

Providing and fixing ball valve (brass) of approved quality, High or low pressure, with plastic floats complete

25 mm nominal bore

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) :

25 mm nominal bore

Providing and fixing square-mouth S.W. gully trap class SP-1 complete with C.I. grating brick masonry chamber with water tight C.I. cover with frame of 300 x300 mm size (inside) the weight of cover to be not less than 4.50 kg and frame to be not less than 2.70 kg as per standard design:

100x100 mm size P type With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Making connection of G.I. distribution branch with G.I. main of following sizes by providing and fixing tee, including cutting and threading the pipe etc. complete :

25 to 40 mm nominal bore

Making connection of drain or sewer line with existing manhole including breaking into and making good the walls, floors with cement concrete 1:2:4 mix (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) cement plastered on both sides with cement mortar 1:3 (1 cement : 3 coarse sand), finished with a floating coat of neat cement and making necessary channels for the drain etc. complete :

For pipes 100 to 250 mm diameter

Providing and fixing on wall face/floor with clips unplasticised - PVC (SWR type 'A',working pressure 4 Kgf per sq cm ) pipes conforming to IS: 13592 including all fittings like Tee, Bend,cleaning type,Y etc.conforming to IS: 14735,scafolding & jointing with seal ring/ solvent cement and testing of joints complete, conforming to IS: 5382 leaving gap for thermal expansion of make Supreme/Kissan classic/Prince as approved by the Engineer in charge.

Single socketed pipes 110 mm diameter

Single socketed pipes40mm diameter

Single socketed pipes 75mm diameter

Providing and fixing on floor 110x75mm PVC(SWR) Nahani trap conforming to IS of make as approved by the Engineer in charge.

Providing and fixing stainless steel jali (grating) with or without hole for waste pipe for floor/ nahani trap.

110mm dia

Constructing brick masonry chamber for underground C.I. inspection chamber and bends with bricks in cement mortar 1:4 (1 cement : 4coarse sand) C.I. cover with frame (light duty) 455x610 mm internal dimensions, total weight of cover with frame to be not less than 38 kg (weight of cover 23 kg and weight of frame 15 kg), R.C.C. top slab with 1:1.5:3 mix (1 cement : 1.5 fine sand : 3 graded stone aggregate 20 mm nominal size), foundation concrete 1:5:10 (1 cement : 5 fine sand : 10 graded stone aggregate 40 mm nominal size), inside plastering 12 mm thick with cement mortar 1:3 (1 cement: 3 coarse sand), finished smooth with a floating coat of neat cement on walls and bed concrete etc. complete as per standard design:

Inside dimensions 600x 850 mm and 45 cm to 60cm deep for pipe line with three or more inlets :

With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Providing and fixing white vitreous china laboratory sink with C.I. brackets, C.P. brass chain with rubber plug, 40 mm C.P brass waste and 40mm C.P. brass trap with necessary C.P. brass unions complete, including painting of fittings and brackets, cutting and making good the wall wherever required :

Size 600x450x200 mm

Bench/wall Mounted 3 Way swan neck Column With Swiveling Spout, Water Flow Around 40i/min At 3 Bars Pressure, Surface Protection:epoxy Powder Coating Ral 7035 Materials:brass / Handle In Pp Head work Sealing.

Provided & fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm +/- 5% total coated thickness (TCT), Zinc coating 120gsm as per IS: 277 in 240mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches while transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in-charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55mm) with EPDM seal or with polymer coated J or L hooks, bolts and nuts 8mm diameter with bitumen and G.I. limpet washers or with G.I. limpet washers filled with white lead complete upto any pitch in horizontal/ vertical or curved surfaces excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

Providing and fixing chicken wire mesh in corner portion and joints by providing 'U' nails complete as per approved design and as per the direction of engineer-in-charge.

Providing and replacing exting damage false ceiling sheet with GRG (Glass Fibre Reinforced Gypsum) false ceiling tiles of Size 595x595 mm at all heights of approved texture, design and patterns having moisture content less than 2%, humidity resistance of 99%, NRC0.50 to 0.75 as per IS 8225:1987, Non combustible as per BS 476 (part 4)-1970 and light reflectance of 85% (minimum) etc as directed by Engineer Incharge.

Renewing bottom rail and/or top runner of collapsible gate including making good all damages and applying priming coat of zinc chromate yellow primer of approved brand and manufacturer.

Providing gola 75x75 mm in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 (1 cement : 3 fine sand) as per standard design :

In 75x75 mm deep chase

Providing and placing in position 100 mm thick factory made machinebatched & machine mixed Precast RCC Rectangular Covers ondrains of footpath of various sizes, of M-25 grade cement concretefor RCC work, including cost of centering, shuttering, reinforcement of 8 mm dia TMT bars of Fe 500 grade @ maximum 100mm c/c onboth ways , neat cement punning on finished surface, properlyencased on all edges with 1.6 mm thick , 100 mm wide MS sheetduly painted over priming coat , reinforcement to be welded at edgeswith MS sheet and providing 2 Nos. 12 mm dia bar for hooks etc i/ccost of cartage, all leads & lift, handling at site etc. all complete asper direction of Engineer-in-Charge.

Providing and laying integral cement based water proofing treatment including preparation of surface as required for treatment of roofs, balconies, terraces etc consisting of following operations:

(a) Applying a slurry coat of neat cement using 2.75 kg/sqm of cement admixed with water proofing compound conforming to IS. 2645 and approved by Engineer-in-charge over the RCC slab including adjoining walls upto 300 mm height including cleaning the surface before treatment.

(b) Laying brick bats with mortar using broken bricks/brick bats 25 mm to 115 mm size with 50% of cement mortar 1:5 (1 cement : 5 coarse sand) admixed with water proofing compound conforming to IS : 2645 and approved by Engineer-in-charge over 20 mm thick layer of cement mortar of mix 1:5 (1 cement :5 coarse sand) admixed with water proofing compound conforming to IS : 2645 and approved by Engineer-in-charge to required slope and treating similarly the adjoining walls upto 300 mm height including rounding of junctions of walls and slabs.

(c) After two days of proper curing applying a second coat of cement slurry using 2.75 kg/ sqm of cement admixed with water proofing compound conforming to IS : 2645 and approved by Engineerin- charge.

(d) Finishing the surface with 20 mm thick jointless cement mortar of mix 1:4 (1 cement :4 coarse sand) admixed with water proofing compound conforming to IS : 2645 and

approved by Engineerin- charge including laying glass fibre cloth of approved quality in top layer of plaster and finally finishing the surface with trowel with neat cement slurry and making pattern of 300x300 mm square 3 mm deep.

(e) The whole terrace so finished shall be flooded with water for a minimum period of two weeks for curing and for final test. All above operations to be done in order and as directed and specified by the Engineer-in-Charge.

With average thickness of 120 mm and minimum thickness at khurra as 65 mm.

SANJAY H. AGRAWAL (BID ID -878091)