EXTENSION OF CHEMICAL LAB AT HAL BARRACKPORE DIVISION.

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TURN OVER IN Rupees

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Experience of having successfully completed similar works during last 7 years ending last day of previous month. [Latest work experience certificate may be uploaded] [WORK COMPLETION CERTIFICATE AS PER ENCLOSED FORMAT IN TENDER DOCUMENT TO BE UPLOADED] (i) THREE similar completed works each costing not less than the amount equal to 40% of the estimated cost. (ii) TWO similar completed works each costing not less than the amount equal to 50% of the estimated cost. (iii) ONE similar completed work each costing not less than the amount equal to 80% of Amount put to the tender.

40% (Three Works)

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Description

Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of 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 steel work in built up sections in angles, tees, flats and channels including all gusset plates, bolts, nuts, cutting rivets, welding etc. including dismembering and stacking within 50 metres lead, complete as per direction of Engineer-in-charge.

Dismantling tile work in floors and roofs laid in cement mortar including stacking material within 50 metres lead for For thickness of tiles 10 mm to 25 mm, complete as directed by EIC.

Dismantling roofing including ridges, hips, valleys and gutters etc., and stacking the materials within 50 metres lead of G.S. sheet, complete as per directions of the Engineer in charge of the work.

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, complete as directed by EIC.

Dismantling aluminium/ Gypsum partitions, doors, windows, fixed glazing and false ceiling including disposal of unserviceable material and stacking of serviceable material within 50 metres lead, complete as directed by EIC.

Taking out doors, windows and clerestory window shutters (steel or wood) including stacking within 50 metres lead: of area 3 sq. metres and below, complete as direcetd by EIC.

Removing / transporting the surplus excavated earth including debris, vegetation waste etc., to a distance not exceeding 350 m including loading, unloading, depositing, spreading, levelling etc., after obtaining due clearance from the Engineer-in-Charge etc., all complete as directed by the Engineer-in-Charge.

Earth work in excavation by mechanical means {Hydraulic excavator)/manual means over areas (exceeding 30cm in depth, 1.5m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and for all lift, as directed by Engineer-in-charge.

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundation etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50m and for all lift, as directed by the Engineer-in-Charge.

Supplying chemical emulsion in sealed containers including delivery as specified. Chlorpyriphos/Lindane emulsifiable concentrate of 20%, as directed by Engineer-in-Charge

Providing anti-termite treatment with bifenthrin emulsifiable concentrate chemical mixture prepared and applied in multiple stages as specified etc. all complete as directed by the Engineer-in-Charge. Diluting and injecting chemical emulsion for CONSTRUCTIONAL anti-termite treatment (excluding the cost of chemical emulsion). Treatment of soil under floors using chemical emulsion @ one litre per hole, 300 mm apart includingdrilling 12 mm diameter holes and pluggingwith cement mortar 1 :2 (1 cement :2 Coarse sand) to match the existing floor with Chlorpyriphos/Lindane E.C. 20% with 1% concentration, complete as directed by the Engineer-in-Charge. For top surface of filled earth at 5 litres of chemical emulsion per m² of surface NOTE: A performance guarentee bond for 10 years on non-judicial stamp paper of ₹100/- shall be given by the contractor. 10% of completed value of this item shall be deducted as defect liability deposit and the same shall be returned after successful completion of 10 years from the date of completion of the contract / project as a whole.

Providing and laying in position cement concrete of specified grade 1:4:8 (1 Cement : 4 coarse sand (zone-Ill) derived from natural sources :8 graded stoneaggregate 40 mm nominal size derived from natural sources) excluding the cost of centering and shuttering - All work up to plinth level (in foundations, mass concrete, sub bases, floors, pavings and other similar works including mechanical mixing, transporting, vibrating, consolidation, levelling, curing, dewatering if any, all materials, labour, lead & lift, tools, plant & machinery, keeping concrete well wetted during the curing period and protecting it in extreme weather conditions etc.), all complete as directed by the Engineer-in-Charge.

Providing and laying damp-proof course 40mm thick with cement concrete 1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 12.5mm nominal size derived from natural sources)

Providing & applying a coat of residual petroleum bitumen of grade of VG-10 of approved quality using 1.7kg per square metre on damp proof course after cleaning the surface with brushes and finally with apiece of cloth lightly soaked in kerosene oil.

Centering and shuttering including strutting, propping etc. and removal of form for foundations including footings, bases of column, mass concretes, floor etc. complete as diected by EIC

Centering and shuttering including strutting, propping etc. and removal of form for slabs, landings, chajja, canopy, racks etc. in fair finish complete as diected by EIC

Centering and shuttering including strutting, propping etc. and removal of form for Lintels, beams, plinth beams, girders, beams, roof beams, cantilever beams etc., for all span complete as diected by EIC

Centering and shuttering including strutting, propping etc. and removal of form for Columns, Pillars, Piers, Abutments, Posts and Struts etc. complete as diected by EIC

Steel reinforcement of Thermo-Mechanically Treated bars of grade Fe-5000 or more for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete above plinth level as directed by EIC.

Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana / Ordinary Portland /Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate I retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering,shuttering, finishing and reinforcement as per direction of the engineer-in-charge, for the Concrete of M30 grade with minimum cement content of 350 kg /cum of concrete.etc., all complete as directed by the Engineer-in-Charge. All works upto plinth level - Concrete of M30 grade with minimum cement content of 350 kg /cum NOTE: (i) Reinforcement & formwork shall be paid separately. (ii) Mix design to be obtained from Govt. / NABL laboratory for site batching concrete and RMC with minimum cement content as per IS 456 from approved manufacturer and the same shall be approved by HAL before execution.

Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana / Ordinary Portland /Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate I retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering,shuttering, finishing and reinforcement as per direction of the engineer-in-charge, for the Concrete of M30 grade with minimum cement content of 350 kg /cum of concrete.etc., all complete as directed by the Engineer-in-Charge. All works above plinth level upto floor V level - Concrete of M30 grade with minimum cement content of 350 kg /cum NOTE: (i) Reinforcement & formwork shall be paid separately. (ii) Mix design to be obtained from Govt. / NABL laboratory for site batching concrete and RMC with minimum cement content as per IS 456 from approved manufacturer and the same shall be approved by HAL before execution

Providing and fixing bright finished brass tower bolts (barrel type) of size 200x10 mm with necessary screws etc. complete as directed by the Engineer-in-Charge.

Providing and fixing bright finished brass door latch of size 250x16x5 mm with necessary screws etc. complete as directed by the Engineer-in-Charge.

Providing and fixing bright finished brass handles of 125 mm size with screws etc. complete as directed by the Engineer-in-Charge.

Providing and fixing bright finished brass hanging type floor door stopper with necessary screws, etc. complete as directed by the Engineer-in-Charge.

Providing and fixing aluminium extruded section body tubular type universal hydraulic door closer (having brand logo with ISI, IS : 3564, embossed on the body, door weight upto 36 kg to 80 kg and door width from 701 mm to 1000 mm), with double speed adjustment with necessary accessories and screws etc. complete as directed by the Engineer-in-Charge.

Providing and fixing stainless steel ( Grade 304) railing made of Hollow tubes, channels, plates etc., including welding, grinding, buffing, polishing and making curvature (wherever required) and fitting the same with necessary stainless steel nuts and bolts complete, i/c fixing the railing with necessary accessories & stainless steel dash fasteners , stainless steel bolts etc., of required size, on the top of the floor or the side of waist slab with suitable arrangement as per approval of Engineer-in-charge, (for payment purpose only weight of stainless steel members shall be considered excluding fixing accessories such as nuts, bolts, fasteners etc.).

Providing and fixing on wall face unplasticised Rigid 110mm dia PVC rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS : 5382, leaving 10 mm gap for thermal expansion, (i) Single socketed pipes etc. complete as directed by EIC.

Providing, applying and laying cement mortar (1:4) plastering 12 mm thick on brick/concrete surfaces, finished even and smooth for ceilings, with necesary materials, labour, scaffolding, curing, tools and tackles etc., at all heights, all complete as directed by the Engineer-in-Charge.

Providing 20 mm thick cement plaster 1:4 (1 cement : 4 sand) on fair faces of brick work or concrete surface including finishing even and smooth using extra cement as per direction of Engineer-in-Charge.

Providing rendering and plastering 15mm thick. (av) in cement mortar 1:4 on brick or concrete surface work including neat cement finishing to an even and smooth surface including materials, transportation, curing, scaffolding etc. complete as directed by EIC.

Providing, applying and laying cement mortar (1:4) plastering 15 mm thick on brick/concrete surfaces, finished even and smooth with trowel for internal walls etc., including supply and fixing of hexagonal chicken mesh minimum 150 mm wide having opening 20 mm x 20 mm of 26 gauge at junctions of concrete & brick work or between different material, with necesary materials, labour, scaffolding, curing, chicken mesh, tools and tackles etc., at all heights, all complete as directed by the Engineer-in-Charge.

Providing and laying double charged vitrified floor/wall tile polished finish of size 600 x 1200 mm (thickness to be specified by the manufacturer) with water absorption less than 0.08% and conforming to IS: 15622, of approved make, in all colours and shades, laid on 20 mm average thick cement mortar 1:4 (1 cement : 4 coarse sand), jointing with grey cement slurry @ 3.3 kg/ sqm including grouting the joints with white cement and matching pigments etc., joints with white cement and matching pigments etc. The tiles must be cut with the zero chipping diamond cutter only . Laying of tiles will be done with the notch trowel, plier, wedge, clips of required thickness, leveling system and rubber mallet for placing the tiles gently and easily. complete as directed by EIC. NOTE: The rate is inclusive of plastering work where tiling work shall be done.

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.

Providing and laying gang saw cut 18 mm thick, mirror polished pre moulded and pre polished machine cut granite stone of required size and shape of approved shade, colour and texture in footpath, flooring cut granite stone of required size and shape of approved shade, colour and texture in footpath, flooring in road side plazas and similar locations, laid over 20 mm thick base of cement mortar 1:4 (1cement : 4 coarse sand) including grouting the joints with white cement mixed with matching pigment, epoxy touch ups etc. complete as per direction of Engineer-in-Charge.

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) of 15 mm nominal dia pipes, having thermal stability for hot & cold water supply, including all CPVC plain & brass threaded fittings and fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step CPVC solvent cement and the cost of cutting chases and making good the same including testing of joints complete as per direction of Engineer in Charge. Concealed work, including cutting chases and making good the walls etc.

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) of 20 mm nominal dia Pipes, having thermal stability for hot & cold water supply, including all CPVC plain & brass threaded fittings and fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step CPVC solvent cement and the cost of cutting chases and making good the same including testing of joints complete as per direction of Engineer in Charge. Concealed work, including cutting chases and making good the walls etc.

Providing and fixing brass stop cock 15 mm nominal bore of approved quality, as per direction of EIC.

Providing and fixing gun metal gate valve of 20 mm nominal bore with C.I. wheel of approved quality (screwed end), as per the direction of EIC.

Providing and fixing Powder coated aluminium (Minimum thickness of powder coating 50 micron) work for doors, windows, ventilators and partitions 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 of 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,handle towe bolt, lock etc. all complete as per architectural drawings and the directions of the Engineer-in-Charge. NOTE: Glazing and paneling shall be paid separately.

Finishing walls with Premium Acrylic Smooth exterior paint with Silicone additives of required shade - New work (Two or more coats applied @ 1.43 ltr/10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/10 sqm).

Painting with synthetic enamal paint of approved brand and manufacture of required colour to give an even shade: Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture, complete as directed by EIC.

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 as direcetd by EIC.

Providing and applying of two coat of approved premium acrylic emulsion paint of interior grade, having VOC (Volatile Organic Compound ) content less than 50 grams/ litre of approved brand and manufacture including necessary preparation, cleaning, scaffolding etc. complete as directed by EIC.

Providing and applying one coat of primer of approved brand and manufacture With water thinnable cement primer on wall surface having VOC content less than 50 grams/litre including surface preparation, cleaning etc. complete as direcetd by EIC.

Providing and fixing Powder coated aluminium (minimum thickness of powder coating 50 micron) work 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 EPDM rubber / neoprene gasket required, handle, lock etc. complete as directed by EIC.

Providing and fixing 12 mm thick prelaminated particle board with decorative lamination on one side and balancing lamination on other side flat pressed three layer or graded wood particle board conforming to IS: 12823 Grade l Type ll, in panelling fixed in aluminum doors, windows shutters and partition frames with C.P. brass / stainless steel screws etc. complete as per architectural drawings and directions of engineer-in-charge

Providing and fixing glazing with float glass panes of 4 mm thickness (weight not less than 10.00 kg/sqm in aluminium window shutters etc. with EPDM rubber / neoprene gasket etc. complete as per the architectural drawings and the directions of engineer-in-charge .

Providing and fixing glazing with sheet glass panes of 5 mm thickness (weight not less than 12.50 kg/sqm in aluminium door shutters and partitions etc. with EPDM rubber / neoprene gasket etc. complete as per the architectural drawings and the directions of engineer-in-charge.

Providing and fixing false ceiling at all heights with integral densified calcium silicate reinforced with fibre and natural filler false ceiling tiles if 15mm of Size 595x595 mm of approved texture, design and patterns as per CPWD Specification 2019, to be laid in true horizontal level suspended on inter- locking metal T-Grid of hot dipped galvanised iron section of 0.33 mm thick (galvanized @ 120 grams per sqm including both sides)comprising of main-T runners of size 24x38 mm of length 3000 mm,cross - T of size 24x32 mm of length 1200 mm and secondaryintermediate cross-T of size 24x32 mm of length 600 mm to formgrid module of size 600 x 600 mm, suspended from ceiling using galvanised mild steel items (galvanizing @ 80 grams per sqm) i.e. 12x50 mm long dash fasteners, 6 mm dia fully threaded hanger rod upto 1000 mm length and L-shape level adjuster of size 76x25x25x1.6 mm fixed with grid and Z cleat of size 25x37x25x1.6 mm thick with precut hole on both 25 mm flange to pierce into 12x50 mm or even bigger size dash fastener if require, fixed with Glavanised iron perimeter wall angle or size 24x24x0.40 mm of length 3000 mm to be fixed on periphey wall / partition with the help of plastic rawl plugs at 450 mm center to center and 40 mm long dry wall S.S screws. The work shall be carried out as per specifications, drawing and as per directionsof the Engineer-in-Charge. NOTE: lenght of GI wire may vary as per site contions and the quote should be inclusive of all)

Drilling suitable holes upto and including 12 mm dia in reinforced or plain cement concrete with power driven drill machine to a minimum depth of 100 mm upto 200 mm in RCC beams, lintels, columns and slabs to introduce steel bars for sunshades/ balconies including fixing the steel bars in position using epoxy resin anchor grout of approved make but excluding the cost of reinforcement, all complete as per direction of Engineer-In-Charge.

Providing and fixing factory made single extruded WPC (Wood Polymer Composite) solid door/window/Clerestory windows & other Frames/ Chowkhat of 45 x 85 mm size comprising of virgin PVC polymer of K value 58-60 (Suspension Grade), calcium carbonate and natural fibers (wood powder/ rice husk/ wheat husk) and non toxic additives (maximum toxicity index of 12 for 100 gms) fabricated with miter joints after applying 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 elasticity 900 N/mm2 and resistance to spread of flame of Class A category with property of being termite/borer proof, water/moisture proof and fire retardant and fixed in position with M.S hold fast/lugs/SS dash fasteners of required dia and length complete as per direction of Engineer-In- Charge. (M.S hold fast/lugs or SS dash fasteners shall be paid for separately). NOTE: For WPC solid door/window frames, minus 5 mm 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.

Providing and fixing factory made single extruded WPC (Wood Polymer Composite) solid plain flush door shutter 30 mm thick of required size comprising of virgin polymer of K value 58-60 (Suspension Grade), calcium carbonate and natural fibers (wood powder/ rice husk/wheat husk) and non toxic additives (maximum toxicity 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 elasticity 850 N/mm2 and resistance to spread of flame of Class A category with property of being termite/borer proof, water/moisture proof and fire retardant and fixing with stainless steel butt hinges of required size with necessary full body threaded star headed counter sunk S.S screws, all as per direction of Engineer-In- Charge.