SPECIAL REPAIR TO STP IN DC I AT AIR FORCE STATION AVADI

Amount

Dismantling floor, hearth or wall tiling including cement mortar bedding (But not backing), removing and rubbish of the premisses, complete including removal of debris to a distance exc 1.5 km but n.exc 2 Km, all as specified and as directed.

Demolition of stones or brick masonry or block walling, built in cement mortar including all quoins, arches etc., but excluding ashlar facing, dressed stone work etc.complete including removal of debris to a distance exc 1.5 km but n.exc 2 Km, all as specified and as directed.

Taking down cement plaster on brick or stone walls, ceiling, etc. including raking out joints, hacking for key, scrubbing down with water, etc complete including removal of debris to a distance exc 1.5 km but n.exc 2 Km, all as specified and as directed.

Demolition of cement concrete (unreinforced) in ground floors and pavings n.exc 15cm thickness (below or above ground level) complete including removal of debris to a distance exc 1.5 km but n.exc 2 Km, all as specified and as directed.

Taking down chowkats or frames including shutters (without taking off shutters from the frame) exc. 1.5 Sqm but not exc. 4 Sqm each and removing from site, all as specified.

M&L for Non Skid ceramic coloured tiles 7 to 8mm thick (square/rectangular) area of each tile exceeding 0.06 sqm but not exceeding 0.11 sqm, as in floors etc. set and jointed in neat cement slurry and including 15mm thick bedding layer in cement mortar 1:6 including necessary cutting and waste as per site requirement pointed in white or coloured cement to match complete all as specified and directed.

S&F Coloured Glazed tiles 300x200x7mm thick, on walls/vertical etc. set & jointed in neat cement slurry & pointed in white or coloured cement to match over 10mm thick plaster in CM1:4 on fair face of brick or concrete surface all as specified and directed.

M&L for Machine cut Kota stone slab flooring 20-25 mm thich laid over 20 mm thick cement screed bed in CM 1:6, laid and jointed with grey cement slurry mixed with pigment to match the shade of the slab including rubbing and polioshing complete all as specified and directed

M&L for Machine cut Kota stone slab flooring 20-25 mm thich laid overas in in skirting, dados, risers to steps etc, laid over and including 10 mm rendering layer in cement mortar 1:4 cutting, rubbing, grinding and polishing complete, all as specified.

M&L for 100 mm thick plain cement concrete 1:4:8 type D2 using 40 mm graded stone aggregate as in sub base all as specified and directed.

M&L for 60 mm thick machine pressed precast concrete interlocking paver block factory manufactured (ISI Marked) any shape and size conforming to IS 15658-2006 of M-35 Grade,casted with grey cement and top layer with grey cement & without pigment floor,pavement,etc over and including 50 mm thick sand cushioning all as specified and directed.

M&L for Coloured Chequered cement concrete tiles machine pressed of size 30cmx 30cmx 22mm thick with grey cement, set jointed & pointed in neat cement slurry and pointed with coloured cement to match and laid over and including 15mm thick screed bed in cement mortar 1:4 complete, all as specified.

M&L for 100mm thick PCC 1:2:4 type B2 using 40mm graded stone aggregate as in floors/ hardstanding, finished even and fair, complete, all as specified.

M&L for 25mm thick plain cement concrete 1:2:4 type B-0 using 12.5mm graded crushed stone aggregate ) as in flooring, finished even & rough to receive floor finishes complete all as specified and directed.

M&L for Plain cement concrete 1:2:4 , type B-1 using 20mm graded stone aggregate as, coping, weathering slighting rounded or chamfered angles and throating including form work complete all as specified.

M & L for brick work with fly ash bricks, old size bricks, straight or curved on plan exc 6m mean radius, built in cement mortar 1:4 complete all as specified.

M&L for Brick work with old size fly ash bricks, Old size bricks, straight or curved on plan exc. 6 metre mean radius built in cement mortar 1:6 all as specified & directed.

M & L for providing PCC 1:3:6, type C2 using 40mm graded stone aggregate as in surface channel complete all as specified.

M & L for rendering 15mm thick in cement mortar 1:6 on fair faces of brick concrete surfaces and finished fair and even complete all as specified.

Cleaning of drains of any description and size not exc 1 Mtr on Width and not exc 1 Mtr depth including lifting up and removing sludge, accumulated solid sludge and other foreign materials and wash down with water for smooth functioing of drainage complete all as specified and as directed . Note : sludge and other material obtained from cleaning shall be removed from site and burried into the ground where directed.

M & L for Rendering 10 mm thick on fair faces of brick or concrete surfaces in CM 1:6 and finished even and smooth without using extra cement all as specified and as directed

M&L for Preparation of new plastered or unplastered surfaces of walls and applying two coats of oil bound distemper over a coat of primer complete all as specified and directed.

Material and labour for Preparation of old plastered or unplastered surfaces of ceiling including brooming down, steel wire brushing; scrapping down smoke soot, moulds, moss and efflorescent salts and trading oil and greasy spots and applying one coat of white wash all as specified and as directed

Material and labour for complete removal of existing treatment including preparation of wall surfaces and applying two coats of oil emulsion distemper over a coat of alkali resistant primer all as specified and as directed.

Material and labour for preparation of old painted steel and iron surfaces of any description, not otherwise described, over 10cm width or girth and applying one coat of synthetic enamel paint etc., complete all as specified and as directed.

Material and labour for Preparation of old plastered or unplastered surfaces of walls including brooming down, steel wire brushing; scrapping down smoke soot, moulds, moss and efflorescent salts and trading oil and greasy spots and applying one coat of cement base paint all as specified and as directed.

Material and labour for complete removal of existing treatment including preparation of fair finished wall surfaces and applying /treating with applying a coat of requisite primer and then applying two coats of Exterior emulsion paint etc., complete all as specified and as directed.

S&F in repair for Mild steel galvanised iron tubings 15mm dia medium grade with all fittings & fixtures complete to walls/ ceilings or laid in floors all as specified and directed.

S & F in repairs Vitreous china squatting pan of 'Orissa' pattern of size 580x 440mm white with "integral foot rests, complete including provision of lime concrete bedding all as directed.

S & F in repairs PVC valve less flushing cistern syphonic action type, low level, inlet, ball valve, float & handle 10 litre capacity including brackets, flush pipe and all accessories all as directed.

S&F in repair vitreous china wash basin (WHB) , white , flat back , size 550 mm x 400 mm excluding supply of taps, but including waste fittings , brass Chromium plated for glazed basins etc. with long screw shanks and flt nuts , flange end embedded in red lead cement and other end fixed , chain and plug and porcelain stopper and brackets including cutting for and pinning in ends of brackets or erecting stand , making connections to waste and supply pipes and complete all as specified and directed

S&F in repair for bib taps, cromimum plated cast copper alloy, screwed down, screwed for iron pipe of 15mm bore all as specified or as directed.

S&F in repair 15mm dia chromium plated pillar taps, cast copper alloy with capstan heads screwed down high pressure, with or without lettered 'Hot' of cold with long screed shanks and fly nuts screwed for iron pipe and fixed with crutch or butterfly handle, screwed both ends for iron pipe or for brass ferrule and fixed complete all as specified and directed.

S & F in repairs Brass chromium plated shower rose 125mm size swivel type complete all as specified and as directed.

S&F in repair for Stop valves/ angle valve, cast copper alloy, chromium plated, fancy type, screwed down, high pressure with crutch or butterfly handle, screwed both ends for 15mm bore iron pipe or for unions and fixed in repairs complete, all as specified.

S&F in repair for 1.25 Thickness of laths in mm Steel rolling shutters, with out ball bearing, as specified including top cover, anchoring rod, hasp and staple and one shop coat of primer; erected in position as indicated, complete: push pull or manual type

S&F for Ball bearing for rolling shutters

Dismantling wrought iron or mild steel work of any description not otherwise provided for complete all as specified & directed by Engineer-in-Charge.

S & F posts and struts in fencing including cutting tops to shape as directed, drilling holes, notching for wire, etc.; flat iron fillets (for securing wire mesh etc.) including all necessary drilling, bolting or riveting, etc., and similar work conforming to Fe 290 Gde E165 complete all as specifieied & directed.

Supply & fixing frame work such as grills , gratings etc with ends of bars shoulderd and / or rivetted or forged into spikes framed guard bars etc confirming to FE 290 GDE E-165

M&L for Dismantling of fencing wire of any description compleet all as spacified and as directed.

S&F Galvanised, 2 strand, steel barbed wire 2.24mm dia barbed with 2mm dia barbs at 75mm spacings and straining and fixing to MS nibs, precast RCC fencing post,struds etc., including, securing or tying at crossings with and provision of galvanised mild steel wire, staples or steel pins, etc. as directed (each line wire to be measured and paid seperately)

Material & Labour for preparing new steel surfaces of any description, over 10cm in width or girth, not otherwise described and applying two coats of Synthetic enamel paint over a coat of Red oxide zinc chrome primer, complete all as specified and directed.

M&L for draining out or Pumpout out all sewage water from STP storage tank cleaning the internal surfaces of by scrapping down / brushing and removing all silt, dirt, algae etc from walls, floors, washing / cleaning with water and applying one coat of white wash to all internal surfaces of floor, walls and applying one coat of anti corrosive bituminous paint on all old steel surfaces such as vent pipes, inlet, outlet pipes, for the following excisting tanks in STP of capacity 500 KLD complete all as directed by Engineer-in-charge.

Equalization tank (EQT) 500 KLD in DC-1

Areation tank 1 (AT 1) 500 KLD in DC-1

Areation tank 2 (AT 2) 500 KLD in DC-1

Settling tank (CWT) 500 KLD in DC-1

Filter feed tank (FFT) 500 KLD in DC-1

Treated tank (TWT) 500 KLD in DC-1

M&L for cleaning the Pressure sand filter vessel, Activated carbon filter vessel external surfaces by scrapping down / brushing and removing all silt, dirt, algae etc from vessel walls, and applying one coat of synthetic enamel paint to all external surfaces and applying one coat of anti corrosive paint on all old steel surfaces such as vent pipes, inlet, outlet pipes, and one coat of synthetic enamel paint complete all as directed by Engineer-in-charge.

Labour only for replacing the media in Pressure sand filter and Activated carbon filter, cost of the medias paid by separately.

Material only for media in Pressure sand filter and Activated carbon filter and replacing with new media suitable for STP plant of capacity 500 LPH complete all as specified and as directed.

1 1/2 - 1 Pebbles 40 Kg bag

1 3/4 Pebbles 40 Kg bag

3/4 - 1/2 Pebbles 40 Kg bag

1/2 - 1/4 Pebbles 40 Kg bag

Gravel 40 Kg bag

Coarse sand 40 Kg bag

Fine sand 40 Kg bag

Activated carbon 25 Kg bag

Commissioning and developing bacteria by (urea, DAP, EM bacteria,Jaggery) in 20 days complete all as specified and as directed by Engr-in-charge.

M&L for taking down the existing unservicble fine core diffuser and replacing with new fine core diffuser suitable for STP plant of capacity 500 KLD complete all as specified and as directed.

M&L for transport of silt / sewage collected from different tanks and UG Sumps of STP and shifting to a place far from the AF area in cosultation with corporation authorities for further disposal.

M&L for disconnecting electrical connections of Centrifugal motor pumpset and decoupling the pump and motor, suction and delivery pipe, transporting motor pump set to work shop. Deassemble the motor, removing, replacing the worn out bushes / bearing service the motor complete, and deassemble the pump set removing pump shaft repair by lathe work for proper alignment, replace thurst bearing, Impellar, brass bush, CI bowl assembley, rubber coupling,washers, nuts and bolts with one coat of primer & two coat of synthetic enamel paint after scraping the body surface of pump with emery paper,writing letters,assemble the motor pumpset Transporting to site coupling, connecting electrical & pipe connections testing complete for 20 HP capacity all as specified and directed.

All as per Item No 51 above but capacity of motor 10 HP

All as per Item No 51 above but capacity of motor 7.5 HP

All as per Item No 51 above but capacity of motor 5 HP

M&L for disconnecting electrical connections of Submersible motor pumpset and decoupling the pump and motor, suction and delivery pipe, transporting motor pump set to work shop. Deassemble the motor, removing, replacing the worn out bushes / bearing service the motor complete, and deassemble the pump set removing pump shaft repair by lathe work for proper alignment, replace thurst bearing, Impellar, brass bush, CI bowl assembley, rubber coupling,washers, nuts and bolts with one coat of primer & two coat of synthetic enamel paint after scraping the body surface of pump with emery paper,writing letters,assemble the motor pumpset Transporting to site coupling, connecting electrical & pipe connections testing complete for 7.5 HP capacity all as specified and directed.

Supply and fixing 4 Pole,415V,16KA MCCB 16A to 63A Cap including takin g down existing MCCB all as specified and directed

Supply and fixing 4 Pole,415V,16KA MCCB 100A Cap including taking down existing MCCB all as specified and directed

Supply and fixing 4 Pole,415V,16KA MCCB 125A Cap including takin g down existing MCCB all as specified and directed

S&F in repairs Direct-On-Line starter in sheet metal enclosure Type MK suitable for motor rating upto 7.5 HP, 415V, 50Hz complete all as specifed and directected

Collection of sewage treated water samples from DC-I STP sump and DC-III STP sump all as per standard instructions and guidelines of the Chief Water Analyst of Deprtment of water and sewage examination, King Institute Guindy transporting the samples safely and getting the tested for chemical and bactyeriological (COD,BOD,TDS,PH and etc) tests from the same institute and submit the result all as specified and directed.

M&L for butterfly valve thread/ flanged type 150mm dia including providing new leather sheet after dismantling and taking up existing unserviceable old butterfly valve as specified and directed by Engr-in-charge.

All as per Item No 61 above but size of valve 100 mm

All as per Item No 61 above but size of valve 80 mm

All as per Item No 61 above but size of valve 50 mm

Excavation in trenches not exc 1.5m in width and 1.5 M in depth and getting out excavated soil soft/loose soil.

Returning fitting in including spreading, levelling, watering and well ramming in layers not exc 25cm

Removing excavated material / soil to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed by Engineer-in-Charge.

Supply and lay sand cushioning spreading levelling for cable trenches all as specified kand directed (Punned thickness only shall be measured and paid)

Supply and laying well burnt bricks sub class 'B' in trenches for cable protection of U/G cable all as specified

Supply & Lay in trenches fixed on wall (or) passing through pipes/in floors connecting up testing and commissioning of PVC insulated armoured LT UG electric cable with aluminium conductor 1100V grade of size 25 sqmm 3.5 core incl taking out, all as specified and directed by Eng-in-charge.

S&F in repairs unserviceble suction strainer suitable for air compressor rating upto 20 HP, 415V, 50Hz complete all as specifed and directected by Engr-in-charge

Supply and fixing rusted unserviceble M S Pipes heavy grade with all fittings laid in floors or fixed to walls etc of bore size 150mm

All as per Item No 72 above but bore size 100 mm

All as per Item No 72 above but bore size 80 mm

All as per Item No 72 above but bore size 50 mm

All as per Item No 72 above but bore size 40 mm

All as per Item No 72 above but bore size 32 mm

M&L for repair and servicing the 500 LPD STP electrical control panel, replacing the burnt out & unsv power contactor, over load relay upto 20 HP motor,push buttons, push button NC / NO contactors, connectors upto 63A range, star delta starters upto 20 HP motor,DOL starter upto 7.5 HP motor, burnt out control wires & power wires after servicing the control panel tested by well trained expert in STP work all as directed by Eng-in-charge.

M&L for point wiring extended from excisting celing light point to side wall max upto 7 mtrs with two single core 1.5 Sq.mm size multistranded copper conductor PVC insulated cables and one single core 1.5 Sq.mm size green colour PVC insul-ated,multistranded copper conductor PVC cable as earth continuity conductor,1100 volts grade, complete drawn in and including PVC CASING & CAPING and accessories, confirming to IS specifications, fixing on ceiling/trusses with suitable clamps , screws etc., all as specified and as directed

Supply and fix in repairs after taking down the old unserviceble tube light fitting of any type 40W LED tube fitting surface mounted and high performance batten complete with electronic driver and LED tube suitable for AC single phase,230V, 50Hz, including provision of three core flexible copper conductor PVC insulated 1100V grade cable connecting up ceiling rose to fitting terminal end and testing complete Make :- Crompton TRIMLINE NEU, CCS-100-40-65 -SL-DP-NWH.

Supply and Fixing in repairs LED street light fitting,230 V,AC, 35 W, LED, outdoor type,CCT not less 6000K high pressure die cast aluminium housing ,heat resistance toughened glass with frame IP 65/ 66 protection LED lumen efficacy not less then 120 lumen/watt, reflector lenses for uniform light distribution on each LED with driver,lamp bracket with impact and corrosion resistant including thermal management in multiple optics complete fixed on existing / New bracket and making connections including taking down the old one complete all as specified and as directed .

D Subramani & Sons