Construction of New 350 cum Overhead Water tank at North Bengal Medical College and Hospital in the District of Darjeeling. Civil Work EE/NBD/SS/NIT/59/25-26

Earth work in excavation of foundation trenches or drains or septic tank soak well etc. in all sorts of soil (including mixed soil but excluding latarite or sand stone) including removing spreading or stack- ing the spoils within a lead of 75m. as directed. The item includes necessary trimming the sides of the trenches, leveling dressing and ramming the bottom, bailing or pumping out water etc. as required complete. (a) Depth of excavation not exceeding 1,500 mm.

(b) Beyond 1.5 mtr. upto 3.0 mtr. but not requiring shoring

Hire and labour charges for shoring work (including necessary close plank walling, framing, salbulla piling, strutting etc.) complete as per direction of the EIC for foundation excavation.(vertical surface area in contact with supported earth is to be measured.)This item should be executed on specific direction of the EIC. (a) Depth upto 1.5 m.

(b) For additional depth beyond 1.5 m. and upto 3.00 m

Earth work in filling in foundation trenches or plinth with good earth in layers not exceeding 15cm. Including watering and ramming etc. layer by layer complete. (Payment to be made on basis of measurement of finished quantity of work) (a) With earth obtained from excavation of foundation.

Single brick flat soling of picked jhama bricks including ramming & dressing bed to proper level & filling joints with powdered earth or local sand including cost of sand etc complete as per direction & specification.

Ordinary Cement concrete (mix 1:2:4) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement,if any, in ground floor as per relevant IS codes .Pakur variety

Controlled cement concrete with well graded stone chips (20 mm nominal size) excluding shuttering & reinforcement with complete design of concrete as per [ISI : 456 and relevant special publication. Submission of job mix formula after preliminary mix design after testing of concrete cube as per direction of the EIC. consumption of cement will not be less than 300kg of cement with super plasticiser per cum. of controlled conc. but actual consumption will be determined on the basis of preliminary test & job mix formuta. In ground floor and foundation.[Using concrete mixture] M 25 Grade (i ) Pakur variety For works in foundation, basement and upto roof of ground floor/upto 4 mtr (Column, Bracing)

Controled cement concrete with well graded stone chips (20 mm nominal size) excluding shuttering & reinforcement with complete design of concrete as per [ISI : 456 and relevant special publication. Submission of job mix formula after preliminary mix design after testing of concrete cube as per direction of the EIC. consumption of cement will not be less than 320kg of cement with super plasticiser per cum. of controlled conc. but actual consumption will be determined on the basis of preliminary test & job mix formuta. In ground floor and foundation.[Using concrete mixture] M 30 Grade.In heel beam, conical slab, bottom dome, bottom ring beam, walkway, shell wall etc. (i ) PAKUR Variety

Hire and labour charges for shuttering with centreing and necessary staging upto 4 m. using approved stout props and thick hard wood planks of approved thickness with required bracing for concrete slabs, beams, columns, lintels curved or straight including fitting, fixing and striking out after completion of works. (f) 25 mm to 30 mm shuttering without staging in foundation(upto roof of ground floor)

(c) Steel shuttering or 9 to 12 mm thick approved quality ply board shuttering in any concrete work In ground floor/ 0 to 4m

20 m and above (Rising top

Hire & labour chages for shuttering for conc. Work in overhead R.C. Reservoir on separate R.C. frame including fitting, fixing & stricking off after completion of work (From 4m to top of reservoir).

Extra for staging beyond 4 mtr (Mode of measurement area of unsupported horizontal projection, where staging beyond 4 mtr. is practically un-avoidable) staging height to be considered for 4 mtr. above G.L. to mean height of soffit and plan area in between out side of ring beam minus hollow shaft if any and annular ring beam of staging above metial 4Mtr.

Reinforcement in reinforced conc. work in all sorts of structures includg. dist.bars, stirrups, binders etc., initial straightening and removal of loose rust (if necy.) cutting to requisite length, hooking and bending to correct shapde, placing in proper position and binding with 16 gauge balck annealed wire at every intersection, complete as per drawing and direction. SAIL/TATA/RINL (a) For works in foundn. basement and upto roof of ground floor/upto 4m.For works in foundation, basement and upto roof of ground floor

beyond 20 m

Supplying & labour for mixing of super plasticizer of approved make brand sika/cico conforming to IS-2645- 1975 & IS-9130-1979 to be need in mortar admixture @ 0.20% by wt. of cement (i.e 100ml per 50kg of cement) for improving workability, reducing shrinkage and improvement of water tightness of the concrete.

(a) Applying 2 coats of bonding agent with synthetic multi functional rubber emulsion having adhesive and water proofing properties by mixing with water in proportion (1 bonding agent : 4 water : 6 cement) as per Manufacturer's specification

(b) Applying 2 coats of Non-Toxic Acrylic Polymer modified Paint having adhesive & waterproofing properties by mixing in proportion (1 liquid: 4 cementitious material) or as per manufacturer's specification for water proofing layer in water tank etc.

Supplying mosquito proof net made of polythene (NETLON) size 75cm. X 75cm. for ventilator including fitting, fixing in the best sal wood frame of 8cm. X 5cm. cross section with necessary wooden batten fixing the assembly with necessary MS clamp in RCC wall at the lantern.

Supplying at site filling, fixing, erecting and building in position where necessary 600mm.wide M.S. Cat ladder as per design consisting of 2nos. ISMC 150, 8mm.thick with necessary base plate of 8mm.thick 100mm.wide M.S. plate as steep @ 300mm.a/c supported on ISA 50x50x6 ,ISA 60x60x8mm.thick both side as per requirement.900mm.ht. as post on one side/both side @ 1000 and ISA 45x45x6 as horiz. Runner to cover side railing including fabrication, welding,drilling etc.as per drawing and direction and finished with two coats of synthetic enamel painting over a coat of primer etc. all complete as per direction of EIC. for cat ladder, railing of stair & platform, walkway etc. e) from 20mtr. to 24mtr. @ 1.5%extra of (d)

Supplying at site hoisting, fitting, fixing erecting and building in position where necessary 450mm.wide ladder as per design consisting of 2nos. M.S.Plate of 8mm.thick with necessary base plate 60mm wide; and 16mm.dia M.S.round or square bar as steeps placed @ 300 c/c including fabrication, welding drilling etc. as per drawing and direction and finished with two coats of synthetic enamel painting over a coat of red lead primer etc. all complete as per direction of the EIC

Supplying, fitting, fixing 900 mm high G.I. pipe railing for R.C.C stair cat ladder walk way fabrication,erection,welding of 40 mm G.I (NON TATA medium) pipe place at top of railing and 2 nos 25 mm dia. G.I pipe (NON TATA medium) placed equally in between railing top & floor vertical post of railling are 40 mm dia. G.I pipe (NON TATA medium) placed at 900 mm c/c . The each end of the vertical post is join by the 62 mm (25 mm X 6 mm X 0.062 m long) MS flat and 150 mm length (propes pipes) are grouted in concrete base of stair, walk way etc. All Complete with supplying of all materials including hoisting up to the any height complete with 2 coats of painting with super gloss (Hi gloss) in any shade except white and black over a coat of primer complete as per per direction of the EIC

Supplying fitting and fixing in position reinforced cement polymer concrete manhole cover with matching frame as per IS-12592 (MD) a) Square. i) 600 mm x 600 mm x 50 kg (approx) a) 5MT load bearing capacity round manhole cover parovided with two nos. lifter hook with machining frame of size 550mm x 65mm(cover) and 650mm x 125mm(frame) opening 470mm and WT. 90KG. approx.

Horn gap lighting arrestor complete parts and pin insulators supplying, fitting fixing all complete as per direction of E.I.C.

Plaster (to wall,floor,ceiling etc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating,nosing and drip course, scaffolding/ staging where necessary. (Excluding cost of chipping over concrete surface) ii) With 1:4 cement mortar c) 10mm thick plaster. From GL TO 4 m

above 20 m

Applying Exterior grade Acrylic primer of approved quality and brand on plastered or concrete surface old or new surface to receive decorative textured(matt finish)or smooth finish acrylic exterior emulsion paint including scraping and preparing the surface throughly,complete as per manufacturer's specification and as per direction of the EIC. a)One Coat GL to 4 m

above 20 m

Protective and Decorative Acrylic exterior emulsion paint of approved quality as per manufacturers specification and as per direction of EIC to be applied over acrylic primer as required. The rate includes cost of material , labour, scaffolding, and all other incidental charges but excluding the cost of primer. In Ground floor (Two Coat) c) Super protective 100% Acrylic Emalsion. GL to 4 m

above 20 m

Construction of different dia Sluice valve /Air valve /Washout chamber in different sizes for village road where light traffic run and for main road where heavy traffic run as deptt. approved drawing with 25cm thick brick work (1:6) over cement concrete (4:2:1) over a single B/F soling over 150mm thick sand filling in foundation including earth work in excavation and disposal of excess earth from work site with RCC (1:1.5:3) cover slab 100mm / 150mm thick slab on top of chamber with 1% reinforcement in RCC cover slab with necessary opening for operation of valve all complete including cost of labour & materials as per Departmental Dwg. [Reinforcement type:- Other manufactuerers not specified] d) 150 mm dia inlet/delivery/overflow/washout

c) 200 mm dia inlet/delivery/overflow/washout

Supply and delivery of CIDF sluice valve (Special type) PW-1.00 of different dia make with CI double flanged non rusting spindle sluice valves conforming to IS 14846 -2000 with latest emended having body dome/bonnet and cover of C.I.Gr-F.G 210mtr. spindle of IS-6603 G.R- 12/Gr-13 non-magnetic, nuts seat rings are of Gunonetal as per IS:318 LTB-2 flanges and drilled to IS:1538 Part IV & VI valves are suitable for max. working pressure of 10kg/cm2(seat test) and body tested to 15kg/cm2. N.B: The above item should be procured from the reputed manufactures as per deptt. approved vender listi iv)150mm.dia.

iii) 200 MM dia

Hoisting, erection ,placing connecting with pipes and specials CIDF pipes, specials) securing with building specials providing stays, clamps as required including cost of staging platform for the work etc.all complete in all respects as per drawing and direction of EIC. 150 MM dia

200 MM dia

Laying of CIDF /D.I Pipes with specials, valves etc. in trenches including excavation in all sorts of soil, moorum, soft rock and refilling the trenches after laying & jointing of pipes etc. all complete as per specification and direction of EIC. d) 150 MM dia

c) 200 MM dia

Fitting, fixing duckfoot bend including construction of cement concrete (4:2:1) base with stone chips of approved grade & quality & including excavation of earth etc. complete in all respect. e) 150 mm dia (Base Size 200mm x200mm x 350 mm deep)

d) 200 mm dia (Base Size 250mm x 250mm x400 mm deep)

Hoisting, fitting, fixing of bell mouth with puddle collar in RCC work complete in all respect as per drawing, specification and direction of EIC. d) 150 MM dia

c) 200 MM dia

Making flange joint to CIDF pipe, specials, valves etc.with supply of necessary nuts and bolts, rubber insertion of 6kg/m2 (3mm gauge) and materials required including dewatering if any tools and plants, labour cost etc. as per specification and direction of EIC (Nut and bolts shall be of TATA/GKW make) for iv) 150 MM dia

iii) 200 MM dia

Making arrangement for water tightness test conforming to the provision laid in IS:3370(Pt-I) 1956 by filling with water upto top water level (TWL) as shown in the drawing and as per direction of EIC. (if water is supplied by the Department rate shall be reduced as per prevailing departmental rate)

Disinfection & washing the tank and pipe connections including cleaning the inside of the tank etc complete.

Neat cement punning about 1.5 mm thick in wall, dado, window, sills, floor, drain etc.Note-cement 0.152 cu.m. per 100 sq.m.

(a) Applying 2 coats of bonding agent with synthetic multi functional rubber emulsion having adhesive and water proofing properties by mixing with water in proportion (1 bonding agent : 4 water : 6 cement) as per Manufacturer's specification [Cement to be supplied by the Department]

Number plaque of building (plaque size up to 225 mm x 225 mm) made of sand cement plaster (1 : 2) on face of wall or plinth with 50 mm size letters P.W.D and the number of the structure formed thereon (in sunk type) including painting the letters and the number complete as per direction.

Supplying and laying standard four course bituminous water proofing treatment as per specification laid down in I.S. 1346 - 1991 to be finished with pea size gravel including necessary preparatory works such as shaping mouth of outlets, cutting as and where necessary and refilling with sand and Cement mortar (4:1) or Cement Concrete (1:2:4) with graded stone chips before undertaking the treatment including cutting grooves in parapet and inserting edge of felt and mending good damage complete in all respect as per direction of Engineer - in - Charge including cost of all materials and labours and incidental charges but excluding the cost of Cement Mortar or concrete required for levelling and grading. (In sloped roof Course sand of approved varieties is to be used in place of Pea size gravels as fourth and final course.) i) 1st and 3rd Course with bonding materials of hot applied industrial blown type bitumen of grade 85/25 or 90/15 conforming to I.S.702 - 1988 @ 12Kg/10Sqm on each layer. ii) 2nd course with Hessian base self finished bitumen type3 r.-I conforming to I.S. 1322-1993 (weighing 23kg/10Sqm gross with bitumen content 12.10kg/10Sqm ) tested under the provision of I.S. 13826 - 1993 part VII. iii) 4th course with washed and clean pea sized gravel or grit @ 0.006 cum/Sqm B. Over Sloped Roof.

Supply the following materials for connection of inlet, outlet, overflow and delivery line of ORH asper departmental drawing. A) C.I.D.F. pipe as per I.S. 7181 - 1986 with letest revision. 150 MM dia

200 MM dia

B) C.I.D.F. Duck foot Bend as per I.S. 1538-1976 with latest revision. 150 MM dia

200 MM dia

C) C.I.D.F. Bell mouth PCS as per I.Sl 1538-1976 with latest revision. 150 MM dia

200 MM dia

D) C.I.D.F. 90°Bend as per I.S. 1538 (Part XXI)- 1976 with letest amended. 150 MM dia

200 MM dia

Hoisting,fitting,fixing of C.I. bell mouth with puddle collar in RCC work as per drawing specification and direction of EIC all complete 150 MM dia

200 MM dia

Bituminous filer of approved type in excavation joint between the shell wall & roof including finishing the top surface as per ;drawing, specification and direction of EIC

Supplying hoisting, fitting fixing approved type water level indicator with copper float, guide pulley, wire boards etc. as per standard specification and direction and satisfaction of EIC

Commissioning the R.C.C. over head reservoir by operating of all category of sluice valves , testing of hoisted pipe joints including repairing the leakage(s) if detected , including making inter connections,flange jointing/lead jointing with the newly laid rising main and distribution main all complete as per direction of the EIC.

A)Earthing with 50mm.dia G.I. pipe3.64mm.thick x 3mtr. (10”-0”) long and l;1 x 4SWG G.I. (Hot dip)wire 4mtr. long 13mm. dia x 80mm.long G.I.Bolts, double nuts , washer including S&F 15mm.dia G.I.pipe protection (1mtr. long) to be filled with bitumen partly below ground level to an av. Depth of 3.65m below G.L. and restoring the surface duly rammed as per IEE rule i)For soft soil. b)By TATA Medium G.I.Pipe.

Dismantling R.C. floor, roof, beams etc. including cutting rods and removing rubbish as directed within a lead of 75 m. including stacking of steel bars. Quantity same as RCC part of new construction Corridor

Removal of rubbish,earth etc. from the working site and disposal of the same beyond the compound, in conformity with the Municipal / Corporation Rules for such disposal, loading into truck and cleaning the site in all respect as per direction of Engineer in charge

M.S. structural works with hollow sections (square or rectangular shape) conforming to IS: 806-1968 & IS:1161-1998) connected to one another with bracket, gusset, cleat as per design, drawing & direction of Engineer-in-Charge complete including cutting to requisite shape & size, fabrication including metal arc welding conforming to IS: 816-1969 & IS: 9595 using electrodes of approved make and brand conforming to IS:814- 2004, haulage, hoisting and erection all complete. The rate includes the cost of all M.S. Hollow section, all consumables such as electrodes, gas and hire charges of all tools and plants and labour reqired for execution and all incidental chages (such as electricity, labour insurance) etc. complete. Payment to be made on the basis of calculated weight of structural memebrs of MS Holow Section as specified in relevent IS code in finished work. Payment for gusset, bracket, cleat may be made by adding the actual weight of such items with weight of finished structural members. The rates are considered for a hight of erection 8 m. / 2nd floor level from the ground. Add 1.5 % extra over the rate for each additional floor or 4m. beyond the initial 8 m. or part thereof. a) Span up to 12 Mtr 20 kg / sqm = 2X3X2.5x20 =300 Kg

Supplying, fitting and fixing single skin colour coated trapezoidal profile for wall cladding. Roof shall be made of 0.45 mm BMT (Base Material Thickness) (0.50 mm TCT (Total coated thickness excluding paint), G550 (min 550 yield strength), of Zincalume metalic coating (ISI 5965) with high solar reflectance index (SRI) value for better cooling as per thermatch technology, 1000 - 1015 mm effective cover width with five major corrugation, 28 mm high rib spaced at 203 mm c/c with subtle square fluting in the pan and the end rib shall have anti-capillery groove and return leg. The steel sheet shall be fastened with 40 micron zinc coated or 25 micron zinc - tin alloy coated, hex head self - drilling screw as per IS 3566 - 2002 class 3 fastener. The base steel shall be coated with zinc - alluminium alloy zincalume (AZ150) (i.e. 55% Al, 43.4 % Zinc, 1.6% Si) minimum of 150 g/m2 coating total on both sides, pre -painted with colourbond XRW (exterior roofing, walling) paint system of 35 micron Super Durable Polyster paint (SDP) with stable inorganic treatment with no lead contents confirming ISI 15965. The sheet shall be free from defects and have brand marking of the manufacturer giving product details on the back of the sheet at regular interval confirming genuinity of the material. a) With 0.5 mm thick sheet 2X3 X 2.5

Supplying, fitting and fixing Marble Slab/tile of 15 to 18 mm thickness in floor, lobby, stair, landing & treads etc. over 20 mm (av.) thck base of Cement mortar (1:2) laid with white cement slurry @ 4.4 kg/Sq.m before placing marble & jointed with white cement slurry @ 2.0 kg/Sq.m with necessary pigments including grinding and Granite polishing as per direction of Engineering -in -Charge in Ground Floor. {White cement and Pigment to be supplied by the Agency] (a) With Makrana plain pink / Adranga Pink / Garbh Gulabi / Udaypur pink / Udaypur Green / Black Bhaslana (i) Area of each Slab/tile upto 0.3 sq.m. 2X3 X 2.5

Labour for assembling, hoisting, placing, fitting & fixing tubular roof trusses. (a) Above 1.5 m to 3 m span

M.S. works in brackets made from flats, angles, tees etc. to sizes specialy bent, twisted, forged; making holes drilled and fitted to rafter of trusses with necessary bolts, nuts, washer or screws etc. (length of straight not less than 230 mm)

GST @ 18% of Estimated cost

Labour Wellfare Cess @1% of Estimated cost with GST

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