Attending breakdown for underground water supply pipe lines at various locations at DAE colony Old Mandala, TMC and TIFR colony at Payalipada under Old Mandala maintenance unit, Mumbai

Amount

PART I : CIVIL WORKS

Description of Work / Item(s)

Amount

PART I : CIVIL WORKS

Cutting the existing asphalt macadam road including rubble soling /WBM for exposing/ laying pipe lines, etc. & making good the same after satisfactory completion of work including backfilling in layer exceeding 150 mm depth along with watering, consolidation/ ramming / compaction in each layer till voids in soil are completed removed etc. complete all as per specification & as directed by the Engineer- in- Charge.

Demolishing plain cement concrete, bituminous road etc. by chiseling at all levels including scaffolding, disposal of materials out side colony etc. complete all as per specification & as directed by the Engineer- in- Charge.

Demolishing brick/ stone masonry in cement mortar and plaster at all floors & levels including scaffolding, stacking of serviceable materials & disposing off unserviceable materials out side colony etc. complete all as per specification & as directed by the Engineer- in- Charge.

Supply, transporting, laying & jointing, C.I. pipes of following sizes for water supply including lowering & keeping them in position to correct alignment & levels including cutting of damaged pipes wherever necessary, jointing with the existing pumping pipeline, testing the pipes after making necessary joints (lead joints if any will be measured & paid separately) at required pressure upto 10 Kg/ cm2 with minimum duration of testing for two hours with clean & potable water as per specification, transporting the dismantled materials to Deptt. stores etc. complete all as per specification & as directed by the Engineer- in- Charge.

a) 80 mm n. b.

b) 100 mm n. b.

Providing, laying & jointing CI specials/ fittings for pressure pipes for water supply like C.I. socket & spigot or flanged pipes/ specials, tees, bends, collars reducers, enlargers of all sockets, socket & spigot or double end flanged conforming to IS:1538 (Parts I to XXIII)-1976 of approved make to correct alignment & levels including testing the specials/ fittings & joints to 10 Kg/ cm2 pressure with a minimum period of testing of two hours duration with clean & potable water, as per specification of Engineer- in- Charge.

Making lead caulked joints to CI socket & spigot or double socket pressure pipes & specials of following sizes, for water supply including cost of pig lead, spun yarn, fuel, labour including making sockets pits for lead pouring, caulking & testing the joints to 10 Kg/ cm2 pressure with minimum period of testing of two hours with clean & potable water, as per specification & direced by Engineer- in- Charge.

a) 80 mm n. b.

b) 100 mm n. b.

Making flanged joints to a double flanged pressure pipes & specials of following sizes for water supply including drilling the holes to the flanges conforming to BS 10 table E including providing MS nut bolts with double washers, jointing materials like neoprene rubber insertion or equivalent fuel, labour including making sockets pits for lead pouring, caulking & testing the joints to 10 Kg/ cm2 pressure with minimum period of testing of two hours with clean & potable water, as per specification & as direced by Engineer- in- Charge.

a) 80 mm n. b.

b) 100 mm n .b.

Repairs of leaky valve operation key rods, replacing damaged gasket gland, replacing slipped/ damaged nut bolts etc. including servicing and greasing the valves for better performance for the water supply system, cleaning of chambers etc. testing for pumping operation with minimum period of testing of two hours with clean & potable water, as per specification & direced by Engineer- in- Charge.

Providing & fixing of single/ double action or Kinetic air Valve of specified diameter as mentioned below, the Air Valve shall be of heavy quality conforming to IS 14845 with IS certification mark and isolation valve. The body, domes, covers, stuffing box, thrust plates, wedges, gland and cap shall be of cast iron not less than of grade 20 and inside working parts should be of any non-ferrous or ferrous materials. The Air Valve shall be fixed in position as indicated in the drawing or as directed. They shall be fitted by means of flange joints or screwed joint to the pipe line icluding cost of fittings & fixturs, G.I./ C..I pipe and fittings if required, all necessary labour, material and use of tools. etc. complete all as directed by the Engineer- in- Charge.

a) 80 mm n. b.

b) 100 mm n. b.

Providing & fixing of C.I. Sluice Valve of specified diameter as mentioned below , the Air Valve shall be of heavy quality conforming to IS 14845 with IS certification mark and isolation valve. The body, domes, covers, stuffing box, thrust plates, wedges, gland and cap shall be of cast iron not less than of grade 20 and inside working parts should be of any non-ferrous or ferrous materials. The Air Valve shall be fixed in position as indicated in the drawing or as directed. They shall be fitted by means of flange joints or screwed joint to the pipe line including cost of fittings & fixturs, G.I./ C.I. pipe and fittings if required, all necessary labour, material and use of tools etc. complete all as directed by the Engineer- in- Charge.

a) 80 mm n. b.

b) 100 mm n. b.

Brick masonry work at all floors and levels plinth, cable pits, trench, steps etc. using well burnt bricks from approved lot of class designation 3.5 (classification as per IS1077-1992 and min. average compressive strength not less than 3.50 N/ mm2) using Pre-mix/ ready mix cement mortar 1:4 level and plumb including raking out joints/ simultaneous flush pointing using Pre-mix/ ready mix cement mortar 1:4, curing etc. complete as per specifications, drawings and as directed by Engineer- in- Charge. Notes: i) One brick wall thickness shall be considered as 230 mm & lesser wall thickness if any shall be made up accordingly by the contractor by applying cement mortar of mix 1:4 in proper line, level & plumb without any extra cost to the Department. ii) The rate shall include cost of making the brick masonry to all geometrical shapes and sizes without any extra cost to the Department. iii) The contractor shall get approved the samples of bricks from the Engineer- in- Charge before procurement on large scale and shall maintain the same for the entire work. iv) Necessary openings, nitches, cut-outs, wherever required as per drawings and asked for by the Engineer- in- Charge shall be provided by the contractor without any extra cost.

Cement plastering using factory manufactured pre mix/ ready mix mortar in CM 1:4 of 'Roofit Mix' of M/s. Premier Floor to Roof Materials pvt. ltd./ 'Easy plast' of M/s. Walplast Products pvt. ltd./ 'Readiplast' of M/s. Ultratech Cement Ltd. or other approved equivalent make, having minimum composition of C:S : : 1:4 using fully treated dry, well graded natural sand conforming to IS 383 suitable for external/Internal plastering(Main hole, Chember, Gully trap, etc.), having low rebound properties, low water demand for curing properties, mechanical mixing with water in a metallic tray only to make good consistency as per the specification of the Manufacturer and applied on internal wall and ceiling finished smooth with neeru over brick walls or concrete surfaces at all floors and levels including membrane curing by applying one coat of factory made curing compound Resikure of M/s. Anuvi Chemicals, Concure of M/s. Fosroc, Dr. Fixit curing compound or other equivalent over repaired surfaces as per manufacturer's specification etc. and removing existing damaged/ worn out plastering and disposing off debris out side colony etc. complete all as per specifications and as directed by Engineer- in- Charge.

a) 15mm thick

Cement concrete1:2:4 using graded stone of specified grades at all locations & depths for the following works using graded stone aggregate of 20 mm maximum size including necessary form work, machine mixing, transporting, placing in position consolidation, finishing, curing etc. complete as per specifications, drawings and as directed by Engineer- in- Charge.

Random rubble masonry using spotless black trap or approved locally available stone in cement mortar 1:6 including raking out joints, scaffolding, simultaneous flush pointing using through bond stones at every 900 mm in horizontal & vertical courses of each layer, including PVC pipe 75 mm dia. weep hole at 1.5 m c/c in horizontal & in vertical direction, curing etc. complete all as directed by the Engineer- in- Charge.

a) In foundation & ground level upto plinth.

Providing & laying in trenches centrifugally cast Ductile (spun) iron pressure pipes for water supply Class K-9 of approved make conforming to IS :8329, external zinc bitumen coated & internal cement mortar lined with ISI mark including keeping them in position to correct alignment & levels, laying (IS 1228), jointing with rubber gasket of SBR as per IS 5382 and/ or IS 12820 with IS mark, cutting of damaged pipes wherever necessary, jointing with the existing pumping line, testing the pipes after making necessary joints to appropriate hydraulic pressure with minimum duration of testing for two hours with clean & potable water including cost of fittings like tees, bends, collars reducers, enlargers of all sockets, socket & spigot or double end flanged pipes etc. as per specifications and as directed by Engineer- in- Charge.

a) 80 mm. dia.

b) 100 mm. dia.

Providing & fixing in position at all levels & location the HDPE water storage tanks of M/s. Sintex or approved equivalent make of following capacity rotationary moulded Polyethylene (with 2.5% carbon black compound) water storage tank with SMC/ FRP cover conforming to IS 10146 and ISI marked, including providing & fixing lockable cover with suitable locking arrangements as approved by the Municipal Corporation / local statutory Body, placing and supporting the whole bottom area of the tank on existing base / platform, etc. complete all as per specification and complete all as directed by the Engineer-In Charge.

1000 Litre Capacity cylindrical vertical type of M/s. Sintex or equivalent approved make ISI marked.

2500 Litre Capacity cylindrical vertical type of M/s. Sintex or equivalent approved make ISI marked.

Supplying and fixing in position heavy duty 1st quality PRAYAG (India) Make or equivalent approved Make PVC Ball Cock of following size With Suitable Size Aluminum Rod, durable quality, threaded at both ends including heavy duty PVC Float Ball ( Low pressure quality) etc. complete all as directed by the Engineer- in- Charge.

a) (25 mm) 1'' dia.

b) (32 mm) 1¼'' dia.

c) (40 mm) 1½'' dia.

Providing and fixing in position heavy pattern screw down gun metal Gate Valve conforming to IS:778 with hand wheels at top including testing for 10 Kg/ cm2 pressure with clean and potable water with a minimum testing duration of two hours etc. including removing gun metal Gate valve & returning to Deptt. stores etc. complete all as per specifications and as directed by the Engineer- in- Charge.

a) 15 mm n.b.

b) 25 mm n. b.

c) 32 mm n. b.

d) 40 mm n. b.

e) 50 mm n. b.

Providing RCC precast covers for the sluice valve/ air valve chambers of the specified sizes , including the cleaning of chambers, cost of necssary steel reinforcement for slab cast in MS box frame 25mm*25mm*5mm size in three equal pieces fabricated angels all around & MS flats stiffeners etc. MS hooks at both sides of top of each cover with reinforcement weighing not less than 110kg/m3, providing & fixing C.I. circular surafce box weighing not less than 14kg with a hinged lid over the RCC slab in central piece for key rod operation, all as per specification including shifting of old serviceable covers to the mechanical section stores, disposing the unserviceable materials etc complete as directed by Engineer-In-Charge.

For valve chamber size1200 mm x1200 mm

For valve chamber size 1000mm x1000mm

Providing & fixing RC precast steel fiber reinforced concrete(SFRC) manhole frame & cover conforming to IS 12592 of following sizes approved by BMC/CIDCO/ Engineer-in-charge of approved make tested as per IS1726(part-I) 1974 including cost of making bed block (bearing course ) & capping of grade M-15 for fixing the frame including necessary form work & cement morter 1:2 for fixing the frame & for plastering the exposed surfaces of concrete & bed block(bearing course) & capping finished smooth with a floting coat of neat cement etc. complete all as per specification & as directed by EIC. "DCSEM SEWER and YEAR" shall be embossed on cover.

Rectangular frame & cover: Extre Heavy Duty Grate EHD-40 designation frame of outer size 1100 x 650 mm and inner size 900 x 450mm having section 100mm wide x 120mm deep. The cover shall be of 1020mm x 570mm x 70mm thick.

Rectangular frame & cover: Heavy Duty Grate HD-20 designation) frame of outer size 1100 x 650 mm and inner size 900 x 450mm having section 100mm wide x 120mm deep. The cover shall be of 1020mm x 570mm x 70mm thick.

Circular frame & cover: Extre Heavy Duty Grate EHD-40 designation frame of outer dia. 760mm & clear internal dia. 560mm having section 100mm wide x 120mm deep. The cover shall be of 680mm dia. x 70mm thick.

Circular frame & cover: Heavy Duty Grate HD-20 designation frame of outer dia. 760mm & clear internal dia. 560mm having section 100mm wide x 120mm deep. The cover shall be of 680mm dia. x 70mm thick.

Removing and Refixing/ Laying shahabad stone/ paver blocks/ Kota stone/ paving in footpath/ ground over a bed of 150mm thick murrum including supply of murrum & preparation of murrum bed to proper slope including consolidation of sub base proparly, vibrating with surface vibrater/Ramming including cutting the edges to proper lines & sunk/ flush pointing with cement mother 1:3 with 15 x 10mm groove crosswise & longit-tudinally or finishing as per the original & adjacent footpath, curing, cutting of stone wherever required & transporting the stone to site of work from allocated site etc. complete all as directed by Engineer-in-charge