Construction of Standard Operation Boundary Wall on backside of Line Maintenance Building and beside International Cargo in place of old damaged boundary wall and temporary fencing for CISF KOTE area at NSCBI Airport, Kolkata.

Amount

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, for all lift, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. All kinds of soil

Credit item for disposal of excavated earth (mixed with dismantled pavement rubbish) outside of airport premises all complete as per the direction of Engineer-In-Charge. [Note: Agency have to quote negative rate for this item]

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

Supplying and filling in plinth with sand under floors, including watering, ramming, consolidating and dressing complete.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :1:5:10 (1 cement : 5 coarse sand derived from natural sources : 10 graded stone aggregate 40 mm nominal size derived from natural sources)

Providing and laying in position specified grade of reinforced cement concrete excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level: 1:1.5:3 (1 cement : 1.5 coarse sand derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement : 1:1.5:3 (1 cement : 1.5 coarse sand derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)

Centering and shuttering including strutting, propping, etc and removal of form for : Foundations, footings, bases of columns, etc. for mass concrete

Centering and shuttering including strutting, propping, etc and removal of form for :Walls (any thickness) i/c attached pilasters, butteresses, plinth and string courses etc.

Centering and shuttering including strutting, propping, etc and removal of form for : Lintels, beams, plinth beams, girders, bressumers and cantilevers.

Centering and shuttering including strutting, propping, etc and removal of form for : Columns, pillars, piers, abutments, posts and struts.

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. Thermo Mechanically treated Bars of Grade Fe-500 D or more.

Steel Reinforcement for RCC work i/c straightening, cutting, bending ,placing in position and binding all complete above plinth level. Thermo-mechanically treated bars of grade Fe-500D or more.

Brick work with non modular fly ash bricks conforming to IS:12894, class designation 10 average compressive strength in foundation and plinth in : cement mortar 1:6 (1 cement : 6 coarse sand)

Providing and laying Autoclaved Aerated concrete (AAC) blocks masonry 150mm/230mm/300 mm thick with Grade- I AAC blocks in foundation and upto plinth level with approved block laying polymer modified adhesive mortar all complete as per direction of Engineer-in-Charge.

Providing and laying Autoclaved Aerated concrete (AAC) blocks masonry 150mm/230mm/300 mm thick with Grade- I AAC blocks in super structure above plinth level up to floor V level with approved block laying polymer modified adhesive mortar all complete as per direction of Engineer-in-Charge.

12 mm cement plaster of mix: 1:6 (1 cement : 6 fine sand) (Note: Rates for external plaster are for height upto 10m from ground level in less otherwise stated).

15 mm cement plaster on the rough side of single or half brick wall of mix:. 1:6 (1 cement : 6 fine sand) (Note: Rates for external plaster are for height upto 10m from ground level in less otherwise stated)

Finishing walls with Acrylic Smooth exterior paint of required shade :New work (Two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/10 sqm)

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade : Two or more coats on new work.

Steel work welded in built up sections/framed work i/c 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 fixing concertina coil fencing with punched tape concertina coil 600 mm dia 10 metre openable length ( total length 90 m) having 50 nos rounds per 6 metre length, upto 3 m height of wall with existing angle iron 'Y' shaped placed 2.4 m or 3.00 m apart and with 9 horizontal R.B.T. reinforced barbed wire, stud tied with G.I. staples and G.I. clips to retain horizontal including necessary bolts or G.I. barbed wire tied to angle iron all complete as per direction of Engineer-in-charge with reinforced barbed tape(R.B.T.) / Spring core (2.5mm thick) wire of high tensile strength of 165 kg/ sq.mm with tape (0.52 mm thick) and weight 43.478gm/ metre (cost of M.S. angle, C.C. blocks shall be paid separately)

Providing and Fixing in position for expansion joint, 25mm thick pre cut Synthetic joint filler board of approved make conforming to IS:1838 complete as per directions of Engineer-in-charge. (Note: Mode of measurement shall be length of joint multiplied by width of filler board ).

Providing and erecting 2.5 metre high temporary barricading at site; each panel of size 2.50 m x2.50 m made of 40x40x5 mm angle iron posts/horizontal members/bracings covered with 3.00 mm thick MS sheet. The sheet shall be fixed with 50x50x6 mm angle iron by suitable welding/riveting. Suitable arrangement shall be made to fix the barricading to avoid from overturning by providing long expansion fasteners at both ends. The work shall be executed as per drawing/direction of Engineer-in-Charge which includes writing and painting, arrangement for traffic diversion such as traffic signals during construction at site for day and night, glow lamps, reflective signs, marking, flags, caution tape as directed by the Engineer-in-Charge. The barricading provided shall be retained in position at site continuously including shifting of barricading from one location to another location as many times as required during the execution of the entire work till its completion. Rate include its maintenance for damages, painting, all incidentals, labour materials, equipments and works required to execute the job. The barricading shall not be removed without prior approval of Engineer-in-Charge.(Note :- One time payment shall be made for providing barricading from start of work till completion of work including shifting. The barricading provided shall remain to be the property of the contractor on completion of the work).

Making AAI Logo of size 450 mm height and 690 mm width on walls with cement plaster using cement mortar (1cement : 4 fine sand) projecting 12 mm on the surface of the wall as per direction of Engineer-in-charge.

Lettering with synthetic enamel paint of approved brand and manufacture as per the 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

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.

Dismantling steel work in single sections including dismembering and stacking within 50 metres lead in:Channels, angles, tees and flats.

Dismantling barbed wire or flexible wire rope in fencing including making rolls and stacking within 50 metres lead.

Deduct for not disposing the excavated earth within 50 m lead (under BOQ item no. 1) [Note: Agency have to quote negative rate for this item]

Credit item for taking away old useable bricks obtained from demolished boundary wall as directed by Engineer-In-Charge. [Note: Agency have to quote negative rate for this item]

Credit item for taking away single section structural steel as per direction of Engineer-in-Charge. Channels, angles, tees and flats etc. [Note: Agency have to quote negative rate for this item]

Credit item for taking away Concertina Coil, RBT, barbed wire or flexible wire rope as per direction of Engineer-in- charge. [Note: Agency have to quote negative rate for this item]

Designing and vetting of boundary wall in and around operational area at NSCBI Airport, Kolkata including structural stability in accordance with the relevant IS codes along with preparation of detailed design, good for construction drawings, reinforcement/structural steel details, and submission of (Three sets with original copy) designs and drawings vetted by government engineering college/ NIT/IIT, all complete, as per the satisfaction of the Engineer-in-Charge (E-I-C)

Credit item for taking away reinforcement bars as per direction of Engineer-in-Charge. [Note: Agency have to quote negative rate for this item]

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :1:1½:3 (1 Cement: 1½ coarse sand derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)

Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-Charge) of total coated thickness 0.50mm (base metal of minimum 0.45mm thickness with total coating thickness of 0.05mm) with zinc coating 120 grams per sqm as per IS: 277, in 240 mpa 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 during 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 55 mm) with EPDM seal, 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 G.I. chain link fabric fencing of required width in mesh size 50x50 mm including strengthening with 2 mm dia wire or nuts, bolts and washers as required complete as per the direction of Engineer-in-charge.Made of G.I. wire of dia 4 mm

RECHI CONSTRUCTION PVT LTD (BID ID -936771)

PRAFULLYA CONSTRUCTION (BID ID -938800)