SPECIAL REPAIR TO C HANGER IN TECHNICAL AREA AT AF STN PALAM UNDER GE (AF) PALAM DELHI CANTT-10

Amount

Dismantling wrought iron or mild steel work of any description not otherwise provided for complete all as specified

S&F Plates (plain or chequered) channels, square cut or notched (ordinary and counter sunk) forming holes, without any attachment conforming to Fe-410-W (Gde E-250 quility A ) all as specified and directed by Engineer-in charge.

S&F rolled mild steel framed work as in doors or gates of angle or other section with gusset plates, rails, braces, etc., complete, drilled for fixing of steel sheeting or other covering. Doors, etc. to be prepared for hanging or sliding with and including either hooks and hinges or steel hanging door fittings (exclusive of steel sheeting or other covering, running rails and guides) and hanging; also fastening and fixing conforming to Fe-290 Gde E-165 all as specified and directed by Engineer-in charge

S &F rolled mild steel in roof trusses (framed), trussed,purlins, crane gantries, rails and fastenings and heavy bracket framing (Beam, tee, angle, channel or flat sections) including distance pieces, cleats etc conforming to Fe-410-W (Gde E-250 quility A ) all as specified and directed by Engineer-in charge

M&L for preparation of newly steel surfaces of any description over 10cm in width or girth,not otherwise described and applying two coats of synthetic enamel paint over one coat of red oxide primer of any height all as specified and directed by Engineer-in charge

M&L for preparation of old painted steel surfaces of any description over 10cm in width or girth,not otherwise described and applying one coat of synthetic enamel paint of any height all as specified and directed by Engineer-in- charge.

M&L for preparation of newly steel surfaces of any description over 10cm in width or girth,not otherwise described and applying two coats of alumuniun paint over one coat of primer of any height all as specified and directed by Engineer-in charge

All as per item No 6 above but one coat of aluminium paint on old painted surfaces.

Dismantling old rusted CGI sheets from roof, gate, walls etc of the hanger complete all as directed.

S&F for 1.00 mm thick plain galvanised, mild steel sheeting as in roof, wall,gate, ridges hips, valley gutters, drip qnd strqaight flashings with grade of zinc coating 275 gm/Sqm and fixed with nut bolt all as directed

S&F for 0.63 mm thick galvanised corrugated mild steel sheeting with two corrugations side lap, fixed with with L-type or J-type or coach screw and washers in roofs, walls etc with grade of zinc coating 275 gm/ sqm complete all as directed.

S&F for curvature type pre-painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.50mm thick of an colour approved by GE having tensile strength of 550Mpa as in roof covering/clading to wall etc fixed with self tapping screws as per existing shed profile complete all as specified.

M&L for 2mm thick fibre reinforced translucent corrugated sheeting white colour with two corrugation side lap fixed with L-type or J-hook inclding bitumen washers including dismantling old FRP sheets from the roof of hangers complete all as directed.

S&F in repairs plain black MS sheet of thickness 1.25mm in wall cladding, steel gates, or in similar works complete all as directed.

Taking down cement plaster on brick, stone or concrete surfaces of walls etc including racking out joints, hacking for key, scrubbing down with water etc complete all as specified and directed by Engr-in-Charge.

M&L for 15mm thick cement plaster in cement mortar 1:6 on brick or concrete surfaces including finishing surface even and smooth without using extra cement.

M&L for preparation of newly plastered surface of walls and applying two coat of oil bound distemper over a coat of primer.

M&L for providing and laying self leveling elasto-meric concrete in any depth and any width as required for repair to cracks, corner spawling, pot holes, damaged edges of construction/dummy/expansion joints of cement concrete pavement/ slabs of Runway/ Taxi-track as required and finishing by means of trowels and flats alongwith application of a coat of special primer for elastomeric concrete after preparation of surface by removal of all loose material by disc cutter or by chiselling and cleaning by using air blower including all consumable materials, tools, labour etc including removal of all the spoils/ loose materials from site to outside MoD land complete all as specified and directed by Engr-in-Charge.

M&L for preparation of existing concrete surfaces and applying 5 mm thick epoxy polyurethane system including cleaning of surface from dust, dirt, moisture & all foreign materials from the floor. Al floors to be cleared by means of scrubber. Acid itching shall be done to the floor followed by alkaline wash & then the surface shall be cleaned by potable water . After that the floor shall be cleaned by using solvent/degrease cleaner to remove residues for floor cleaning all mechanized equipment shall be used like scrubber, sanders, hot blowers, vaccum cleaners, moisture test machine complete all as specified.

M&L for applying primer of two component, solvent-free, epoxy-polymido amine system having a volumetric ratio of mixing of 2:1. Mixing resin and hardener by weight shall not be allowed. The primer shall be applied @ coverage of 5 Sqm per litre, yielding a DFT of 200 microns.

M&L for epoxy based self leveling screed having a minimum thickness of 3800 microns. The self leveling screed shall consist of a low viscous epoxy-amine cured system and graded aggregates. The epoxy system shall have a volumetric ratio of mixing of resin in (2:1) ratio. The aggregates shall be added in the ratio of (1:3) or (1:3:5). The screed shall have compressive strength of minimum 70 N/Sqmm. The layer shall be desecrated by spike roller to dislodge air pockets.

M&L for applying EPU based self levelling top coat. The top coat shall be of EPU type where urethane linkages are infused in to epoxy matrix, so as to enhance wear resistance, flexibility and impact resistance. EPU top coat shall have a columetric ratio of mixing of (2:1). No filler or aggregates are added in the topcoat at the site, as the addition of fillers will reduce the flexibility. It should yield a thickness of 1000 microns. The volumetric mixing ratio will be (2:1). The compressive strength of the top coat shall be in the range of 60-70 MPa, Tensile strength will be 15-20 MPa, Elongation in the range of 45-50% and flexural strength in the range of 40-50 MPa. Top coat wear resistance (weight loss)/ Abraission Resistance<37 mg.

Taking out the bottom pulley (Approx dia 200 mm) along with nuts, bolts etc of sliding shutter at both sides of hanger and M&L for new pulleys, nuts, bolts, bearing etc including assembling and fixing in position all as specified and as directed (Note : bearings shall be measured and paid separately under subsequent item.

All as per item No 23 above but rollers of size 100mm at top height (Appx ht 40 feet) including arrangement of crane, lifter, safety precaution, scafolding and rope manila etc.

Supply only bearing in wheel/roller make size 5205 complete all as directed by Engr-in-Charge(Up to 15 mtr height).

S&F for mild steel work as in stopper including provn of nuts bolts and necessary welding to be fixed at top of door shutter at height approx 24 to 30 feet to resist the door from both side of channel complete all as directed by Engr-in-Charge.

Repair to existing break system including replacement of defective tower bolts for the locking system including necessary arrangement for the lock in the rails as required and as directed by Engr-in-Charge.

S&F in repair mild steel screw bolts (Machine made) with hexagonal or square head at one end and screwed at other end with shank 16 to 20 mm dia and length exc. 10 cm & n.exe 15 cm complete all as directed.

All as per item No 28 above but 75mm length.

Dismantling of unservicable chain fixed with wheel or handle for lifting and moving of steel door shutter of hangers and replacing the same with new chain 25 mm wide and weight not less than 0.9 Kg per RM.

All as per item no 30 as above but 40mm wide and weight not less than 1.50 Kg per RM.

S&F for 100 mm wide Flash strip on the cracks , holes or leaking joints of CGI/Plain sheets in roofs of hangers complete including arrangement crane, lifter, safety pracution, scafolding and rope manila etc.

Fixing / tightening of existing ultra thin nylon netting of adequate tensile strength fixed with reusable hooks to facilitate painting fixed to structural members of hanger, celing to provide complete bird proofing inside hanger including PVC made shape bird landing arrester 120mm height as directed.

M&L for welding in repairs exc 2.5cm but n.exc 6cm in length thickness of metal to be welded not exc 6mm thick .(Appx height 40 Ft)

All as per item No 34 above but but thickness of welded metal 6 cm but n.exc 9cm .(Appx height 40 Ft)

S&F in repair plates girders or single stanchions, built of one beame or channel section with flange plates, angle brackets, cleats and others connection and conforming to Fe-410-W (Gde E-250 quility A ) all as directed by Engr-in-Charge.(Appx height 40 Ft)

Taking down of de-railed hanger door gates of any size by machenical means i.e. cranes/scafolding/safety measures and re-fixing in same opening after making necessary repair for smooth movement of rolling shutter on rail and ISMB etc complete all as specified and directed

Taking down serviceable air termination rod of copper/aluminium in any shape or size from hanger roof , wall etc in any height and re-fixing the same after completion of hangar roof work all as specified and directed by Engr-in-Charge.

Taking out aluminium strips of any description from hanger roof, wall etc in any height and re-fixing the same after completion of hangar work all as specified and directed by Engr-in-Charge.

Taking down unservesiable sub main wiring with steel conduits/battens etc complete all as specified and as directed.

Taking down existing High bay light fittings of any capacity from Hangar of height upto 30 meters including providing necessary arrangements like ladder etc and transporting and depositing to E/M store yard all as specified and directed by Engr-in-Charge.

Supply and fixing High efficient LED high bay light fitting 250 watts with Integral industrial SMD LED with pressure die-cast aluminium housing, anodised aluminium reflector, complete with driver, necessary hanging arrangements with double protection of hangar light and connection with suitable size copper wire all as specified and directed by Engr-in-Charge.Make:- C & S or equivalent in Havells/Crompton.

M & L for sub main wiring with two run of single core 2.5 Sqmm PVC insulated but unsheathed FRLSH cable multistranded copper conductor 1100 Volt grade IS-694 drawing into and including steel conduit, medium grade ISI marked ( not less than 20 mm) with all conduit fittings & fixing accessories as in wall/ roof including one single core 2.5 Sqmm FRLSH multistrand copper conductor cable as continuous earth wire complete all as specified and directed by Engr-in-Charge. (Note:- The two runs of single core cable and one runs earth continuity conductor and revelent conduit with fitting acessories will be measured as one unit)

M & L for sub main wiring with two runs of single core 4 Sqmm PVC insulated but unsheathed FRLSH cable multistranded copper conductor 1100 Volt grade IS-694 drawing into and including steel conduit, medium grade ISI marked ( not less than 20 mm) with all conduit fittings & fixing accessories for as in wall/ roof including one single core 4 Sqmm FRLSH multistrand copper conductor cable as continuous earth wire complete all as specified and directed by Engr-in-Charge. (Note:- The two runs of single core cable and one runs earth continuity conductor and revelent conduit with fitting acessories will be measured as one unit ).

M & L in replacment of aluminium strips of size 25x6 mm including fixing on porcelain holder insulator for support on wall / roof etc with suitable size screw , nut bolts etc complete all as specified and directed by Engr-in-Charge.

M & L in replacment of earthing complete with galvanised iron earth plate electrode of size 600mm x 600mm x 6 mm thick burried directly under ground vertically to a depth not less less than 2.25 metre below ground level with top edge of plate at a depth not less than 1.5 mtr below ground level connected to and including 32 mm x 6 mm GI earth strip upto 7.5 mtrs with GI protection pipe 40mm dia light grade connected upto DBs by means of bolts, nuts, check nuts, and washers made out of copper all as shown on plate No 3 of SSR Part I to the extent applicable to this item including necessary earthwork, PCC 1:2:4 type B-1 in chamber, RCC 1:2:4 cover 50 mm thick with 8 mm TMT steel bar 100mm centre to centre both ways, watering pipe of GI medium grade 20mm bore, funnel, wire mesh, etc and testing on completion all as specified and as directed by Engr-in-Charge. Note for item No 1.00 to 46.00 of BoQ : (a) The above work shall be carried out in Hangar of Approx height 15 mtr. (b) Contractor shall make arrangement of crane, lifter, safety precaution, scafolding ,rope manila etc to carry out the above works. The quoated rates against items shall deemed to be included for above provisions and nothing extra shall be paid to the contractor on this account.

M/S Chhavi Constructions Co

Atish Builders LLP

Shiv Shankar Nirman Co.

M/S Satyam Associates