ADDN/ ALTN TO CERTAIN BLAST PENS AND CERTAIN MINOR WORKS AT 273 SU AND 20 WING AFS BAGDOGRA UNDER GE (AF) BAGDOGRA

Amount

Provn of 10 Nos mooring points and 02 Nos GRP Strip M&L for RCC core cutting work dia 300 mm and 700 mm to 750 mm deep using hilti core cutting machine or similar core cutting equipment complete all as specified and directed.

Supply only MS/HYSD-U Bar hooks dia 25 mm, length 1700 mm painted with enamel paint and fixed in position complete all as specified and directed.

M&L for PQC grade M-40 to fill 500 mm deep and 300 mm dia placed after core cutting tool and positioned MS/HYSD-U bar hook of 25 mm dia, compacted/ vibrated complete all as specified and directed.

Application of epoxy grout and hardener or equivalent of M100 and above for 200 mm thick in 300 mm dia hole complete all as specified and directed.

M&L for 100 mm size mooring of 20 mm dia painted with two coats of synthetic enamel paint over a coat of zinc primer complete all as specified and directed.

M&L for 3000mm x 150mm strip, cutting in PQC for laying GRP strip (Cutting size 60x10mm size and 3 m in length painted with two coats of synthetic enamel paint over a coat of zinc primer) with mild slope zero at one end and 40 mm at another end for laying GRP strip attached with shear key of 20 mm cutting in deep fixed with epoxy bond complete all as specified and directed.

Provn of aluminium partition at 156 HU M&L for aluminium partition made of aluminium frame (101mm x 50mm) powder coated and ACP board of 4 mm thick including all necessary beads, screws etc complete all as specified and directed.

Provn of road furniture in Tech and Domestic area S&F 5.5 mtr, plastic road hump safety breaker in black & yellow colour for high visibility (width 35 cm and height 35 cm) of heavy duty load complete all as specified and directed.

S&F 800 mm dia polycarbonate traffic convex mirror with pole of minimum height as per IRC 067 code for practice with all necessary arrangement complete all as specified and directed.

Provn of approach path/ hard standing for garbage bins Surface excavation n.exc 30 cm deep and averaging 15 deep and getting out in soft/ loose soil complete all as specified and directed.

Removing excavated material (soil) n.exc 50 m and depositing where directed at a level n.exc 1.5 m above the starting point complete all as specified and directed.

M&L for hard core of gauge not exceeding 63 mm, deposited, spread and levelled in layers not exceeding 10 cm thick watered and rammed to a true surface complete all as specified and directed.

M&L for cement concrete, 1:4:8, type D-2 (using 40 mm graded stone aggregate) as in foundations, filling and mass concrete complete all as specified and directed.

M&L for 75 mm thick cement concrete, 1:4:8, type D-2 (using 40 mm graded stone aggregate) as in sub floors, sub base, floors and pavings etc complete all as specified and directed.

M&L for chequered cement concrete tiles 20cm x 20cm x 25mm thick, set, jointed and pointed in near cement slurry in floors with grey cement and pigments including 20 mm thick screed bed or bedding layer or mortar layer of mortar for laying floor finishes in CM 1:6 complete all as specified and directed.

M&L for cement concrete, (1:1.5:3) of grade M-20 nominal mix used for side coping/kerbs to prevent lateral movement of path complete all as specified and directed.

Provn of iron grill cage for water tanks M&L for fabrication of mild steel iron cage frame made out of MS sheet and angle with welded iron spikes to prevent from monkeys of size 1.2m x 1.2m in size complete all as specified and directed.

Addn/ Altn to certain Blast Pens M&L for mild steel angle iron, framed work provided with necessary slots/ welding work independently in connecting with existing angle iron for increase necessary height confirming to Gde Fe-410 or Fe-310 complete all as specified and directed.

M&L for 3 mm dia and 75 mm x 75 mm aperture galvanised steel wire netting fixed in mild steel frame complete all as specified and directed.

Removing of existing wire net and re-fixing & anchoring of steel wire rope at increased height 1.5m above existing height and to tighten it in same position with necessary mechanical devices including all necessary arrangement complete all as specified and directed.

M&L for mild steel bolts exc 12 mm but n.exc 20 mm purpose made with hexagonal or square head one end and screwed the other or screwed both ends; each screwed end to be fitted with washers and one hexagonal or square nut exc 30 cm long complete all as specified and directed.

M&L for steel wire rope of 6 mm diameter to support wire mesh fabric and to anchor into support and in addition with existing wire complete all as specified and directed.

M&L for preparation of new steel surfaces of any description, over 10 cm in width or girth, not otherwise described and applying two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed.

Complete removal of existing treatment from wall and preparation of surfaces of wall and applying two coats of exterior weather coat of weather coat exterior primer for camouflage design including necessary scaffolding complete all as specified and directed.

S&F in replacement energy efficient FLOOD LIGHT Luminaire LED fitting upto 150 Watt 230 V AC outdoor type with high pressure die cast aluminum hosing and heat resistant complete with driver, lamp bracket with impact and corrosion resistant including thermal management in multiple optics complete with IP 65/66 protection complete, including brackets and all accessories needed to fixed to the wall or pole all as per site requirement and as specified and directed.

M&L for submain wiring with two single core PVC insulated unsheathed, multistranded flexible copper conductor 1100Volts grade, FRLS type, cables 2.5 Sqmm drawn through in and including rigid PVC heavy duty concealed conduits including 2.5 Sqmm 1100Volts grade, FRLS type, PVC insulated unsheathed multi stranded flexible copper conductor cable as continuous earth wire and connecting to common earth terminals complete all as specified and directed. Note:- (i) Two runs of cables and one run of continuous earthing cable drawn in conduit/ casing and caping will be measured as one length of sub main with colour code Red Black and Green. (ii) PVC conduit and its accessories is deemed to be included in this item. (iii) Unit rate include for cutting chases for conduits and sinking for boxes and making good to wall, floors etc.

S&F sheet metal enclosure (factory made), VTPN Vertical Distribution Boards, IP-43 & IP-44 protection with MCCB's 160A as as incomer and 10 Amps MCB, Double Door, 4 way, No of modules I/C XTI 160, O/G 12 Nos with 250 Amps rated copper busbar Model No I-VTPN 04 WAY XTI/IC MD DB Product code 1SYM071604C0001 all as specified and directed.

S&F in replacement of switch socket combination multipurpose flush type, 2 in 1 type (3 and 5 pin), 5/15 Amps, 230V, AC complete all as specified and directed.

Provn of rain shed and plinth area at 273 SU Excavation in post hole or similar holes each n.exc 0.50 Cum, getting out, returning filling in and ramming earth around in layers n.exc 25 cm, watering and removed surplus soil to a distance n.exc 50m and making good surface in soft/loose soil complete all as specified and directed.

M&L for cement concrete, (1:3:6), type C-2 (using 40mm graded stone aggregate) as in foundation filling and mass concrete complete all as specified and directed.

M&L for mild 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 directed.

M&L for preparation of new steel surfaces of any description not otherwise described over 10 cm width or girth and applying two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed.

M&L for pre-painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.50 mm thick of any colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws complete all as specified and directed.

Surface excavation not exc 30 cm deep and averaging 15 cm deep and getting out soft/loose soil complete all as specified and directed.

M&L for broken bricks hard core of gauge n.exc 63 mm, deposited, spread and levelled in layers n.exc 15 cm thick, watered and well rammed to a true surface complete all as specified and directed.

M&L for 100 mm thick PCC, (1:2:4), type B-2 (using 40 mm graded stone aggregate) as in flooring, path etc laid in panels, finishing even and fair without using extra cement complete all as specified and directed.

Provn of trial room for clothing store at 273 SU M&L for anodised aluminium frame for doors, windows, partition, ventilators with one or more rebates including joining cleat for fixing for 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/ panelling, CP brass/ stainless steel screws as per direction of Engineer-in-Charge complete all as specified and directed.

M&L for 4 mm thick aluminium composite panel fixed with screws etc to frame work complete all as specified and directed.

Provn of shed out side unit HQ at 273 SU AF Excavation in post hole or similar holes each n.exc 0.50 cum, getting out, returning filling in and ramming earth around in layers n.exc 25 cm, watering and removed surplus soil to a distance n.exc 50 m and making good surface in soft/ loose soil complete all as specified and directed.

M&L for cement concrete, (1:3:6), type C-2 (using 40mm graded stone aggregate) as in foundation filling and mass concrete complete all as specified and directed.

M&L for mild steel work in tubular trusses including special shaped washer etc. complete ERW or induction butt welded tubes conforming to IS: 1161-1979 grade St-240 complete all as specified and directed.

M&L for preparation new steel surface of any description not otherwise described over 10 cm width or girth and applying two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed.

M&L for pre-painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.50 mm thick of any colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws complete all as specified and directed.

Cutting holes exc 150 sqcm but n.exc 400 sqcm into or through brick walls built in cement mortar and making good in cement mortar 1:3 or cement concrete, 1:2:4, type B-1 as required and complete all as specified and directed.

M/S LAKPA LAMA (BID ID -3113744)

MESSERS D S ENTERPRISE (BID ID -3110625)

HALDER ENTERPRISERS (BID ID -3112701)

M/S IDEAL CONSTRUCTIONS (BID ID -3113717)

M/S BIJAN CHAKRABORTY (BID ID -3113173)

M/s Chakraborty Enterprise (BID ID -3113268)

M/S SWAPAN KUNDU (BID ID -3114740)

SREE SWAPAN KUMAR GHOSH (BID ID -3112308)