RE CARPETING OF RUNWAY TAXIWAYS GRADING OF OPERATIONAL AREA DEVELOPMENT OF DRAINAGE SYSTEM AND ASSOCIATED WORKS CIVIL AND ELECTRICAL AT MBB AIRPORT AGARTALA

Amount

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 m and lift upto 1.5 m.

Excavation of soil using hydraulic excavator of 0.90cum bucket capacity including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross sections, and disposed of the excavated earth, transporting to the embankment location including loading and unloading with all lifts and leads within airport premises excluding the survey work as per direction of Engineer-in-charge (ref. MORTH Specification section-301)

Construction of embankment with available excavated earth deposited at site from other locations with spreading, neatly leveling/ grading and compacting layer by layer to achieve the desired levels and compactions to meet the requirement of table 300-2 of MORTH specification etc. complete in all respects excluding the survey work as per direction of Engineer-in-Charge.(ref. MORTH Specification section-305)

Carrying out Topographical and contour surveying, traversing , contouring & coordinating all permanent and semi-permanent feature by Total station survey instrument and Auto Level as required including mobilization and demobilization of the survey team after completion of survey work at Airport premises of operational area and newly acquired in different plots as per direction of the Engineer in-charge. The following steps shall be taken up: i) Carrying out site survey and taking reduced level 3m x 3m grid. ii) Submission of sets of contour map in suitable scale and size with marking import ants (3 (three) nos. coloured hard copies & 1(one)soft copy. iii) Submission of level sheet in Excel format (Hard copy & soft copy) with quantity calculation for cutting & filling earth as per the gradient which shall be decided by the Engineer in charge. iv) The requisite all survey works for execution of earthwork, quantity work out for Running/Final Bill shall also be included in the scope of survey work.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering (a) All work up to plinth level (i) 1:4:8 (1 Cement : 4 coarse sand (zone-III) : 8 graded stone aggregate 40 mm nominal size)

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering (a) All work up to plinth level (i) 1:3:6 (1 Cement : 3 coarse sand (zone-III) : 6 graded stone aggregate 40 mm nominal size)

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 / 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 following grades of concrete. Note: Extra cement up to 10% of the minimum specified cement content in design mix shall be payable separately. In case the cement content in design mix is more than 110% of the specified minimum cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement. (a) All works upto plinth level (i) Concrete of M25 grade with minimum cement content of 330 kg /cum

Add for using extra cement in the items of design mix over and above the specified cement content therein.

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) including attached pilasters, butteresses, plinth and string courses etc.

Centering and shuttering including strutting, propping etc. and removal of form for : Suspended floors, roofs, landings, balconies and access platform

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. (a) Thermo-Mechanically Treated bars.

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in: (a) Cement mortar 1:4 (1 cement : 4 sand)

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Welded steel wire fabric of required width having rectangular mesh painted with two or more coats of enamel paint of approved shade over a coat of primer (Priming & painted to be paid seperately)

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

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 / 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 following grades of concrete. Note: Extra cement up to 10% of the minimum specified cement content in design mix shall be payable separately. In case the cement content in design mix is more than 110% of the specified minimum cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement. (a) All works upto plinth level (i) Concrete of M35 grade with minimum cement content of 370 kg /cum

Providing and submitting the preliminery drawings, carrying out structural design, preparation of detailed structural drawing and developing working architectural drawing. This item also includes carrying out necessary soil investigation works. In which the design to be done for the proposed work. The structural design and drawings shall be got vetted by IIT/NIT/Govt. Engineering colleges. The design and drawing so submitted shall be got approved by Engineer in charge before execution of work. After approval of structural design and drawing by AAI 5 (Five) set of "Good for Construction" design and drawing showing all relevant details shall be submitted duly signed by the consultant. Consultant shall also submit any other details required relevant to the scope and completion of work. (a) For all RCC Structures

Supply and Stacking at site

(a) 90mm to 45mm size stone aggregate

(b) 63mm to 45 mm size stone agreegate.

(c ) Stone screening 13.2 mm nominal size.

(d) Moorum

Laying, spreading and compacting stone aggregate of specified size to WBM specifications including spreading in uniform thickness, hand picking rolling with 3 wheeled road/ vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening/ binding material to fill up interstices of coarse aggregate watering and compacting to the required density.

Providing and applying tack coat using bitumen emulsion (Rapid setting) complying with IS:8887, spraying the bitumen with mechanically operated spray unit at the rate specified below, cleaning and preparing the existing pavement surface as per specifications complete in all respects as per direction of Engineer-In-Charge. If the actual quantity of bitumen varies from the quantity specified, necessary cost adjustment for deviation in the quantity of bitumen shall be done as per rate in actual supply voucher from nearest refinery at the time of execution. The rate of bitumen exclusive of GST shall only be considered for payment. (a) 0.20 Kg/Sqm on existing bituminous surface

Providing and laying of Hot Mix Dense Bituminous Macadam (DBM) using crushed stone aggregate of quality, size and grading as specified and Cement filler as specified and Viscosity Grade Bitumen (supplied in bulk) in proportions as per job mix formula and laid to specified levels, grade and camber as per specification, drawings and as directed by the Engineer-in- Charge including compacting with 8-10 tonne, preferably vibratory road roller of adequate capacity to achieve the specified values of compaction, strength, surface accuracy complete [for tendering purpose VG bitumen of grade VG-30 shall be taken as 110 kg/m3 of mix supplied in bulk produced by Govt. Refineries and 2% Cement by weight of aggregates as filler material.

Providing and laying of Hot Mix Semi Dense Asphaltic Concrete (SDAC) using crushed stone aggregate of quality, size and grading as specified and Cement filler as specified and Viscosity Grade Bitumen (supplied in bulk) in proportions as per job mix formula and laid to specified levels, grade and camber as per specification, drawings and as directed by the Engineer-in- Charge including compacting with 8-10 tonne, preferably vibratory road roller of adequate capacity to achieve the specified values of compaction, strength, surface accuracy complete [for tendering purpose VG bitumen of grade VG-30 content shall be taken as 120 kg/m3 of mix supplied in bulk produced by Govt. Refineries and 2% Cement by weight of aggregates as filler material.

Providing and laying of Hot Mix Dense Asphaltic Concrete (DAC) using crushed stone aggregate of quality, size and grading as specified and Cement filler as specified and Viscosity Grade Bitumen (supplied in bulk) in proportions as per job mix formula and laid to specified levels, grade and camber as per specification, drawings and as directed by the Engineer-in- Charge including compacting with 8-10 tonne, preferably vibratory road roller of adequate capacity to achieve the specified values of compaction, strength, surface accuracy complete [for tendering purpose VG bitumen of grade VG-30 content shall be taken as 135 kg/m3 of mix supplied in bulk produced by Govt. Refineries and 2% Cement by weight of aggregates as filler material

Painting runway/taxi track/apron marking including lettering with adequate nos of coats to give uniform finish with road marking paint of superior make as approved by the Engineer-in-charge, i/c cleaning the surface of ail dirt, scales, oil, grease and other foreign mater;al etc. and lining out complete. (a)Two or more coats

Painting runway/taxi track/apron marking including lettering with adequate nos of coats to give uniform finish with road marking paint of superior make as approved by the Engineer-in-charge, i/c cleaning the surface of ail dirt, scales, oil, grease and other foreign mater;al etc. and lining out complete. (a)One or more coats

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. (a) In Cement Mortar

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge. (a) Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge. (a) Nominal concrete 1:4:8 or richer mix (i/c equivalent design mix).

Dismantling of flexible pavement (bituminous courses) by mechanical means and disposal of dismantled material up to a lead of 1 kilometre, as per direction of Engineer-in-charge.

Providing and laying Non Pressure NP-3 class (Medium duty) R.C.C. pipes including collars/spigot jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 sand) including testing of joints etc. complete (a) 900 mm dia RCC pipes.

Carriage of material by mechanical transport including Loading, unloading upto 4.00km (a) Lime, moorum,building rubbish.

Supply of C.I. Isolating Transformer housing box, water light round type, metal container of outside size 330 mm, height 450 mm made of 10 mm thick cast iron moulding all round, except the top surface, which is 15 mm thick, cast iron moulding suitable to receive a light fitting base plate on the top and underground housing associated with transformer power cable and having 2nos both side 50mm dia clear hole centre (each180 degree apart) at 75 mm above bottom surface suitable to receive 02 nos 50 mm diameter HDPE pipe and check nut as required. The box should have two SS earth bolt of M 10 x 40 tapped inside near the holes (4" away from the hole centre) and having a drain hole at the bottom suitably tapped to receive 15 mm diameter, 'B' class GI pipe and having clear opening of 220 mm at the top surface and 6 Nos. M 10 tapped hole at the hole centre 260 mm to receive fitting base plate and bolts complete with neoprine rubber gasket for the top covers as required as per the drawing & specifications.

Supply of C.I. Collar suitable for mounting installing on the existing transformer housing box, made out of water tight round type metal container of outside size 330 mm diameter and upto 175mm height (as per site requirement), 10 mm thick all round except on the top surface which is 15 mm thick and a clear opening of 220 mm diameter at the top as well as bottom having 6 Nos. x M-10 tapped hole along the circumferential centre of 260 mm diameter top/bottom plate to receive bolts as required as per the drawing & specifications. total 12nos of SS bolts shall be provided to fix the collar and light fixture. the housing box should have 2 nos. clear hole (01 nos in each opposite side) of 50mm dia suitable to receive 50 mm dia HDPE pipe and check nuts as required. The housing box should be complete with neoprine rubber gasket for the top covers, painting with Anti-corrosive primers and paint inside and outside etc. as per drawing and specification complete as required.

Supply of 1 x 16 Sq. mm 5 KV grade single core, multistranded annealed plain copper conductor, underground, unscreened, unarmoured XLPE insulated and PVC outer sheathed,anti-rodent and anti-termite treated Airfield Lighting Cable generally confirming to IS 7098 Part II with up to date amendments etc. complete as required.

Supply of of 5 KV grade, 16 sq. mm size plug and receptacle of type I class "B" connector suitable for field attachment with 5 KV grade of PVC/XLPE insulated PVC sheathed single core copper conductor Airfield Lighting cable conforming to the relevant IS specification etc. complete as required.

Supply of 50 mm size HDPE pipe including all accessories such as couplers, end cap etc in accordance with IS- 4984 - 1995 as amended up to date (PE80, PN10) complete as required.

Supply of Secondary lead cable of size 2 x 4 sq.mm PVC insulated PVC sheathed anti termite & anti rodent stranded copper conductor airfield lighting cable of 1.1 KV grade. Confirming to IS 1554 part II with up to date amendments as required for following length along with 1.1KV grade Plug and receptacles moulded plug at one end and receptacles at the other end etc complete as required.

a) 1 Mtrs

b) 15 Mtrs

c) 20 Mtrs

d) 30 Mtrs

Supply of Secondary lead cable of size 2 x 4 sq.mm PVC insulated PVC sheathed anti termite & anti rodent stranded copper conductor airfield lighting cable of 1.1 KV grade. Confirming to IS 1554 part II with up to date amendments as required.

Supply of 1.1KV Plug and receptacle suitable for secondary lead of size 2 x 4 sq.mm PVC insulated PVC sheathed anti termite & anti rodent stranded copper conductor airfield lighting cable.

Supply of following type 5 KV grade 50Hz series type Isolating Transformers, encapsulated in polyester resin finally moulded in neoprene type rubber with primary & secondary connections and ready to install etc. complete as required.

a) 200W 20A/6.6Amp5KV Grade Isolating Transformer

b) 15W, 20/6.6 Amps 5 KV grade Isolating Transformer

Supply of Inset type bidirectional fittings suitable for high intensity THRESHOLD/END light fitting for aviation visual aids requirements meeting ICAO standards complete with shallow base and matching body of the fitting, inner body and outer cover made of die cast aluminium complete with 3 x 105 Watts, 6.6 Amps pre focused reflector halogen lamp of 6.6 amps current with connected heat resistant accessories, prism assembly, optical assembly, "O" ring seal, pressure relief test plug, hardware, green/red prism / lenses and all standard accessories and ready for site installation complete as required.

Supply of Inset type bidirectional fittings suitable for high intensity RUNWAY EDGE light fitting for aviation visual aids requirements meeting ICAO standards complete with shallow base and matching body of the fitting, inner body and outer cover made of die cast aluminium complete with 2 x 105 Watts, 6.6 Amps pre focused reflector halogen lamp of 6.6 amps current with connected heat resistant accessories, prism assembly, optical assembly, "O" ring seal, pressure relief test plug, hardware, Yellow/white/green/red prism / lenses and all standard accessories and ready for site installation complete as required.

a)White/White

b)White/Yellow

Supply of Bi-Directional Elevated Type high intensity Runway Edge Light Fittings in compliance with ICAO: Annex 14-Volume I & FAA: L-862 AC150/5345-46 suitable for use with 200W 6.6A halogen lamp complete with all accessories including lamp and clear or Yellow/White spreader lens and CI base plate.

Cutting groove of size 300 mm wide and 150 mm deep (or as required) with saw cut machine, refilling and finishing the surface with coarse sand and bitumen or cement concrete 1:2:4 (1 cement: 2 coarse sand: 4 graded stone aggregate 10 mm dia nominal), etc complete as reqd.

Laying of 50mm dia HDPE pipe as per IS specification complete with fitting and cutting, jointing with coupler, bend etc. direct in ground (75 cm below ground level) including excavation and refilling the trench but excluding sand cushioning and protective covering etc., complete as required.

Laying of one number 5 KV grade single core, PVC/XLPE insulated and PVC sheathed stranded copper conductor underground airfield lighting cable in the existing RCC/ HUME/ METAL/HDPE pipe complete as required.

Laying of 50mm dia HDPE pipe as per IS specification complete with fitting and cutting, jointing with coupler, bend etc. in in the existing trench/ runway surface complete as required.

Making field connections by crimping upto 16 Sq.mm plug and receptacle with the existing 6 / 16 Sq.mm single core PVC/XLPE insulated copper conductor cable including filling the gap with water sealant material, applying PVC insulation tape of approved/reputed make etc complete as required.

Installation of transformer housing boxes (Item No.1) with a base concrete of 1:2:4 of size 800 mm X 600 mm with 100mm thick at bottom and all around concrete of 1 : 2 : 4, 150 mm thick, top sloped with 1:2:4 cement concrete including fixing 2nos. 50mm dia HDPE pipe and providing and fixing of 15mm diameter B class GI pipe with check nuts for drainage of water, smoothening the top surface with cement, including excavation of hard surface/ bituminous concrete at the runway shoulder etc. complete as required.

Installation of transformer housing box Collar (Item No.2) with a base concrete of 1:2:4 of size 600 mm diameter and 175mm height and all around concrete of 1 : 2 : 4, 150 mm thick, top sloped with 1:2:4 cement concrete including fixing 2nos. 50mm diameter HDPE pipe with check nuts for series AFL cable, smoothening the top surface with cement, including excavation of hard surface/ bituminous concrete at the runway shoulder etc. complete as required.

Dismantling of Bi-directional/unidirectional, ELEVATED type of RUNWAY EDGE LIGHT/ TURNING PAD LIGHT/ THRESHOLD LIGHT/WING BAR LIGHT and its supporting pipe fitting etc. from the base plate, isolating transformers from transformer housing box after opening the base plate and M10 size SS/MS hardware etc., and stacking in AAI store.

Dismantling of INSET type of RUNWAY EDGE LIGHT fitting etc., from the Runway surface including disconnection and removing its secondary lead of length up to 60 meters from the runway surface after properly removing the compound, making good the damages and stacking in AAI store.

Re-Installation of Bi-directional/unidirectional, ELEVATED type of RUNWAY EDGE LIGHT/ TURNING PAD LIGHT/ WING BAR LIGHT etc., complete fittings on the existing base plate, installation of isolation transformer, interconnection, testing, commissioning including thoroughly cleaning the fixtures and its accessories, before installation i/c providing extension support pipe of cast aluminum/aluminum of 65 mm diameter size to raise the height of elevated Approach light to match with the new central runway surface etc. as required.

Re-installation of Bi-directional/unidirectional, INSET type of RUNWAY EDGE/THRESHOLD light fittings , installation of isolating transformer, interconnection, testing, commissioning including thoroughly cleaning the fixtures and its accessories before installation laying of secondary lead in length up to 50 mtrs. including core/groove cutting of the hard standing and fixing the fitting using quick setting sealant compound etc. complete as required.

Earthing with G.I pipe of 4.5 meters long x 40 mm diameter i/c accessories and providing masonry enclosures with cover plate having locking arrangement, watering pipes etc., including charcoal or coke and salt complete as required.

Providing and fixing 6 SWG GI wire along with cable for loop earthing as required.

Supply and laying for Earth connection from earth electrode with 6 SWG GI wire in 15 mm diameter G.I pipe (Class-B ) etc., as required.

Supply of 160mm size HDPE pipe including all accessories such as couplers, end cap etc in accordance with IS- 4984 - 1995 as amended upto date (PE80, PN10) complete as required.

Making horizontal boring with all terrain horizontal directional drilling, digging machine at a depth of minimum 1.2 meter or as per site condition and Civil Aviation Requirement (CAR) and laying of 160 mm size of HDPE pipe.

Laying of cable size upto 11 kV, 120 sqmm. in the existing horizontal bore HDPE pipe

Supply of 1 x 6 Sq. mm 5 KV grade single core, multistranded annealed plain copper conductor, underground, unscreened, unarmoured XLPE insulated and PVC outer sheathed,anti-rodent and anti-termite treated Airfield Lighting Cable generally confirming to IS 7098 Part II with up to date amendments etc. complete as required.

Supply of of 5 KV grade, 6 sq. mm size plug and receptacle of type I class "B" connector suitable for field attachment with 5 KV grade of PVC/XLPE insulated PVC sheathed single core copper conductor Airfield Lighting cable conforming to the relevant IS specification etc. complete as required.

Supply of following type 5 KV grade 50Hz series type Isolating Transformers, encapsulated in polyester resin finally moulded in neoprene type rubber with primary & secondary connections and ready to install etc. complete as required. a) 200W 6.6A/6.6Amp 5KV Grade Isolating Transformer

Supply and Installation of suitable size MS Junction Box of Size 300(L)X300(H)X200mm(W) with provision for 2 nos cable entry/exit, alongwith 2 nos 5 KV grade fuse base with copper Link for incoming & outgoing cable (upto 1 x 16 Sqmm) with copper lugs. The base of the box to be fixed with 2feet 40mm GI pipe complete as required as per the site condition.

Supply of elevated type LED fitting suitable for taxiway, apron edge light for operation at 20/6.6 Amp series supply, complete with omnidirectional blue lens (Glass), lens clamping mechanism, breakable coupling, gasket, 2-pin lead, base plate with 06 nos. M 10 stainless steel bolts and other accessories including LED with an integrated encapsulated electronic converter of power consumption approx 7 watt, complete fitting conforming to latest ICAO requirement.

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