Urgent repair renovation including roof treatment work for Block A Class III of NBMC and H Quarters, Darjeeling District. Civil Work EE/NBD/SS/NIT/50/25-26

Dismantling all type of masonry excepting cement concrete plain of reinforced stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m.. (a) In ground floor including roof.

Stripping off worn out plaster and raking out joints of walls, celings etc. up to any height and in any floor including removing rubbish with in a lead of 75 m as directed. .

Removing old scales, blisters etc. of interior surface of walls,ceiling by scraping etc. and preparing smooth and even surface with rendering or cement mortar (1:2) (as necessary), to make the surface suitable for receiving distemper. (Payment against this item will be made only when this has been done on the specific direction of the Engineer-in-charge)

Cleaning the concrete surface by removing dirt and debris, marking defective locations and removing loose concrete by careful stripping untill hard surface is exposed, cutting the concrete to regular shape, wire brushing the exposed surface and removing debris from site complete as per direction of the Engineer - in - Charge.

Cleaning the exposed reinforcement preferably upto full diameter by wire brush, applying two coats of polymer based rust removing compound left for 24 hours, removing the coating and then applying two (2) coats of polymer modified anti corrosive protective coating formulated to inhibit the corrosion of reinforcement as per manufacturer's specification][Mode of measurement:The affected surface area of reinforcement shall be considered for payment]

Dismantling artificial stone flooring upto 50 mm. thick by carefully chiselling without damaging the base and removing rubbish as directed within a lead of 75 m. a) In ground floor including roof In ground floor

In 1st floor

In 2nd floor

In 3rd floor

Dismantling R.C. floor, roof, beams etc. including c,utting rods and removing rubbish as directed within a lead of 75 m. including stacking of steel bars. m.(a) In ground floor including roof

In 1st floor

In 2nd floor

In 3rd floor

Hire and labour charges for shuttering with centering 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 and columns, lintels curved or straight including fitting, fixing and striking out after completion of works (upto roof of ground floor).(a) 25 mm to 30 mm thick wooden shuttering as per decision & direction of Engineer-In-Charge. (a) In ground floor including roof

In 1st floor

In 2nd floor

In 3rd floor

Applying epoxy based reactive joining agent for joining the old concrete with fresh concrete to be applied within manufacturer's specified time as per manufacturers specification. (0.4 Kg / m² of concrete surface)

Applying epoxy mortar ( 10 mm nominal thick) over leached, honey combed and spalled concrete surface and exposed steel reinforcement complete as per Technical specification

Guniting concrete surface with cement mortar (25 mm nominal thick) applied with compressor after cleaning surface and spraying with epoxy complete as per Technical specification

Removal of defective concrete, cleaning the surface thoroughly, applying the shotcrete mixture mechanically with compressed air under pressure, comprising of cement, sand, coarse aggregates, water and quick setting compound in the proportion as per clause 2807.1., sand and coarse aggregates conforming to IS: 383 and table 1 of IS: 9012 respectively, water cement ratio ranging from 0.35 to 0.50, density of gunite not less than 2000 kg/cum, strength not less than 25 MPa and workmanship conforming to clause 2807.6. (40 mm average thickness.)

Providing and inserting nipples with approved fixing compound after drilling holes for grouting as per Technical specifications including subsequent cutting/removal and sealing of the hole as necessary of nipples after completion of grouting with Cement/Epoxy

Sealing of crack / porous concrete with Epoxy Grout by injection through nipples complete as per clause 2803.1.

Ordinary Cement concrete (mix 1:1.5:3) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement,if any, (ii ) Pakur Variety In Ground Floor

In 1st floor

In 2nd floor

In 3rd floor

Reinforcement for reinforced concrete work in all sorts of structures including distribution bars, stirrups, binders etc initial straightening and removal of loose rust (if necessary), cutting to requisite length, hooking and bending to correct shape, placing in proper position and binding with 16 gauge black annealed wire at every intersection, complete as per drawing and direction.(a) For works in foundation and upto roof of ground floor/upto 4 m(ii) Tor steel/Mild SteelI. iii) Other Manufacturer not specified

In 1st floor

In 2nd floor

In 3rd floor

Supplying and application of chemical for post Installed rebar connection by using ETA approved for seismic criteria In rebar connection, Including drill/ng .!2 hole to the required depth by rotary hammer drill, cleonlng with brush &jet of clean air, /ill/ng chemical usIng serrated noule to eliminate mIxIng error and in a voldless manner IncludIng charges for all tools & plants. Application to be designed for post· Installed rebars as per ECZ/TR023 or relevant tested i) Cost of post installed rebaring application with chemical as speclfled for 8 mm dia per cm of depth and accepted design guidelines and the design document to be furnished by the manufacturer. The chemical should have ETA approval for seIsmIc criteria of rebar fixing whIch should be furnished by manufacturer. The installation Superintending Engineer 0/ the respective circle and Injection process should and the setting instructions should be strIctly followed as per manufacturer's specl/icatlons as approved by EIC prior to drlll/ng along with post· Installed rebar embedment design report. The existing concrete member should be scanned using rebar scanner to avoid hitting existing reinforcement in concrete during drilling. Notes : 1)This rate Is excluding the cost of scaffolding. 2)Thls work should not be excuted without specific permission of be executed in the presence oj officer not below the rank 0f Assistant Engineer to supervise the work minutely. 3) Rebar grouting Is specifically required for extension and strengthening purpose of old or existing RCCstructural members with new RCCstructural members through rebar fixing chemical Item without breaking beam, coloumn, roof slab, lintel, cellina etc. ) Cost of post installed rebaring application with chemical as speclfled for 8 mm dia per cm of depth 8 mm bar

Brick work 250 mm Brick work with 1st class bricks in cement mortar (1:6) (a) In foundation and plinth In ground floor

125 mm. thick brick work with 1st class bricks in cement mortar (1:4) in ground floor.

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints or rougening of concrete surface, including throating, nosing and drip course where necessary (ground floor (i) With 1:6 cement mortar (b) 20 mm. thick plaster (Internal) In ground floor

In 1st floor

In 2nd floor

In 3rd floor

(i) With 1:6 cement mortar (c) 15 mm thick plaster In ground floor

In 1st floor

In 2nd floor

In 3rd floor

(ii) With 1:4 cement mortar (c) 10 mm thick plaster In ground floor

In 1st floor

In 2nd floor

In 3rd floor

Acrylic Distemper tointeriorwall,ceilingwithacoatofsolventbased interior grade acrylic primer (as per manufacturer's specification) including cleaning and smoothning of surface. Two Coats

(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

Neat cement punning about 1.5 mm. thick in wall, dado, window, sills, floor, drain etc.

Closing gap between door and window frame and jambs with cement mortar (1:3) including removing old mortar (throughout entire surface of contact) and cleaning the joint. (Cement 0.012 Cu.m/100 Mtr.) (This item is not payable for new works).

Applying Exterior grade Acrylic primer of approved quality and brand on plastered or cencrete 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. In Ground Floor:

In 1st floor

In 2nd floor

In 3rd floor

Protective and Decorative Acrylic exterior emulsion paint of approved quality, as per manufacturer's specification and as per direction of Engineer-in-Charge to be applied over acrylic primer as required. The rate includes cost of material, labour, scaffolding and all incidental charges but excluding the cost of primer. In Ground floor (Two Coat) a) Normal Acrylic Emulsion

In 1st floor

In 2nd floor

In 3rd floor

18 mm. to 22 mm. thick, kota stone slab set in 20 mm thick (avg) cement mortar (1:4) in floor, stair & lobby including pointing in cement slurry with admixture of pigment matching the stone shade, including grinding & polishing as per direction of Engineer - in - charge to match with the existing work. [Slurry for bedding @ 4.4 kg/Sq.m and pointing @2.0 kg/Sq.m] In ground floor

In 1st floor

In 2nd floor

In 3rd floor

Wood work in door and window frame fitted and fixed in position complete including a protective coat of painting at the contact surface of the frame exluding cost of concrete, Iron Butt Hinges and M.S clamps. (The quantum should be correted upto three decimals). (c) Sal : Siliguri. In ground floor

In 1st floor

In 2nd floor

Cleaning and removing paint mark from glass pane with spirit and removing strains etc.

Supplying, fitting and fixing M.S. clamps for door and window frame made of flat bent bar, end bifurcated with necessary screws etc. by cement concrete(1:2:4) as per direction. (Cost of concrete will be paid separately) (b) 40mm X 6mm, 200mm Length

Supplying solid flush type doors of commercial quality, the timber frame consisting of top and bottom rails and side styles of well seasoned timber 65mm wide each and the entire frame fitted with 37.5mm wide battens places both ways in order to make the door of solid core and internal lipping with Garjan or similar wood veneers using phenol formaldehyde as glue etc. complete, including fitting, fixing shutters in position but excluding the cost of hinges and other fittings in ground floor. (b) 32 mm thick shutters (single leaf) In ground floor

Labour for taking out door and window frame including shutter for repair or replacement of different parts of the frame & refixing the same including mending good all damaes complete. (Concrete and brick work for mending damage will be paid separately) (a) Upto area 2.5 Sq.m

Taking out shutter of door and window, dismantling by parts (for repair or replacement of damaged parts), reassembling and refitting and rehanging same with old fittings but with new screws as necessary. (Where different parts of same shutter are renewed under different item, payment under item 73 will be made once only).

Easing door and windows.

Shutters of 2/3rd panel and 1/3rd glazed of doors and windows as per design (each panel consisting of a single plank without joint and with ordinary glass of 7.4kg. Per sq.m./3mm thick) fitted with putty bed and teak wood beads and nails including fitting and fixing shutters in position but excluding the cost of glass, putty, teak bead, nails, hinges etc. and other fittings, in ground floor. (iii) 25mm thick shutters with 12mm thick panel. (b) Sishu, Gamar, Champ, Badam, Bhola, Mogra, Hallak

In 1st floor

In 2nd floor

Taking out M.S. or W.I. Grills from wooden frame including cutting lugs from masonry wall and refitting the same and mending good damages after repairs. (Excluding the cost of necessary repair of damages) or doing any other necessary works.

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. (a) Pakur Variety

Panel (made of single plank) of door and window shutters to design as directed: In Ground Floor (Payment to be made on area of exposed new work). (In case of non-supply of single plank penal rate of reduction to a maximum of 30% will be made). (ii) 19mm thick panel of 30cm to 45cm width (b) Sishu, Gamar, Champ,Badam,Bhola, Mogra, Hallak. In ground floor

In 1st floor

In 2nd floor

(b) Sishu, Gamar, Champ,Badam,Bhola, Mogra, Hallak. (ii) 12 mm thick panel of 30cm to 45cm width In ground floor

In 1st floor

In 2nd floor

Styles and rails of wooden shutters fitted and fixed complete. (Payment to be made on area of new work only). In Ground Floor: (b) Sishu, Gamar, Champ,Badam,Bhola, Mogra, Hallak. (ii) 35mm Thick shutter. Door In ground floor

In 1st floor

In 2nd floor

(ii) 25mm Thick shutter. Window In ground floor in cluding roof.

In 1st floor

In 2nd floor

Supplying fitting and fixing in position approved P.V.C. door frame (Matt finish) made of extruded P.V.C. multichamber hollow section having dimensions 60mm x 50mm x 2mm (+/-0.2mm), horizontal section will be joined with vertical section by galvanised steel screws after inserting two number steel brackets as reinforcement making suitable space for placing hinges, one steel tube 40mm x 20mm x 1.20 mm will be inserted on one full vertical side of the frame (hinge side) as reinforcement, the frame will then be fixed in the opening with the help of P.V.C. expandable fastner/wooden gutties and galvanised steel screws including cost of all materials and labour, hire charges of tools and appliances, carriage of all materials, taxes and all other incidental charges complete.

PVC Door Shutter-30 mm thick: In ground floor

In 1st floor

In 2nd floor

Iron butt hinges of approved quality fitted and fixed with steel screws, with ISI mark.(vii) 100mm. X 58mm. X1.90mm.

Brass hasp bolt of approved quality fitted and fixed complete (oxidised) with 16mm dia rod with centre bolt and round fitting. (b) 250mm long.

Anodised aluminium barrel / tower / socket bolt (full covered) of approved manufactured from extruded section conforming to I.S. 204/74 fitted and fixed with cadmium plated screws: (iv) 150mm long x 10mm dia. bolt.

Anodised aliminium D-type handle of approved quality manufactured from extruded section conforming to I.S. specification (I.S. 230/72) fitted and fixed complete: (iii) 100 mm grip x 12 mm dia rod

(a) M.S.or W.I. Ornamental grill of approved design joints continuously welded with M.S, W.I. Flats and bars of windows, railing etc. fitted and fixed with necessary screws and lugs in ground floor. (i) Grill weighing above 10 Kg./sq.mtr and up to 16 Kg./sq. mtr. WINDOW in ground floor.

In 1st floor

In 2nd floor

Supplying 1.5mm thick M.S. sheet fitted and fixed on one or both faces of M.S./ W.I. gate etc. with point welding at not more than 150mm apart complete in all respect as per design including cost of all labour and materials.

(a) Priming one coat on steel or other metal surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc.

(b) Priming one coat on timber or plastered surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc.

(A) Painting with best quality synthetic enamel paint of approved make and brand including smoothening surface by sand papering etc. including using of approved putty etc. on the surface, if necessary (a) On timber or plastered surface : :With super gloss (hi-gloss) -(iv) Two coats (with any shade except white)

(b) On steel or other metal surface : With super gloss (hi-gloss) -(iv) Two coats (with any shade except white)

Supplying best Indian sheet glass panes set in putty and fitted and fixed with nails and putty complete. (In all floors for internal wall & upto 6 m height for external wall) (i3mm thick (weighing 7.4 kg/Sq.m)

Taking out rain water down pipe.

Supplying, fitting & fixing UPVC pipes A- Type and fittings conforming to IS:13592-1992 with all necessary clamps nails, including making holes in walls, floor etc. cutting trenches in any soil through masonry concrete structures etc if necessary and mending good damages including joining with jointing materails (Spun Yarn, Valamoid/Bitumen/M-Seal etc) complete. A) UPVC Pipes: (ii) 110 mm. Dia.

B) UPVC Fittings: c) Bend 87.5 degree (ii) 110 mm. Dia.

M.S. structural works in columns, beams etc. with simple rolled structural members (e.g. joists, angle, channel sections conforming to IS: 226, IS: 808 & SP (6)- 1964 connected to one another with bracket, gussets, cleats as per design, direction of Engineer-in charge complete including cutting to requisite shape and length, fabrication with necessary bolting, metal arc welding conforming to IS: 816- 1969 & IS: 1995 using electrodes of approved make and brand conforming to IS:814- 2004, haulage, hoisting and erection all complete. The rate includes the cost of rolled steel section, consumables such as electrodes, gas and hire charge of all tools and plants and labour required for the work including all incidental chages such as electricity charges, labour insurance charges etc For structural members of specified sections weighing less than 22.5 Kg./m, In Ground Floor

In 1st floor

In 2nd floor

Holding down bolt with nut including 100 x 100 x 6 mm plate washer at bottom fitted complete and packing the hole with cement concrete or cement grout as directed. (i) 16 mm dia bolt a) 300 mm long

Suppling, fitting and fixing single skin color coated trapezoidal profile for wall cladding, Roof shall be made of 0.45mm BMT (Base Metal Thickness) (0.50mm TCT(Total coated thickness excluding paint), G550 (min 550 yield strength), of Zincalume metallic coating (IS15965) with high Solar Reflectance Index (SRI) value for better colling as per thermatech technology, 1000-1015mm effective cover width with five major corrugation, 28mm high rib spaced at 203mm c/c with subtle square fluting in the pan and the end rib shall have anti-capillary groove and return leg.The steel sheet shall be fastened with 40 micron cine coated or 25 micron zine-tin alloy coated, hex head, self-drilling screw as per IS 3566-2002 Class 3 fastener. The base steel shall be conted with inc-aluminium alloy Zincalume (AZ150 )(.e. 55% Al, 43.4% Zine, 1.6% Si) minimum of 150 g/m2 coating total on both sides, pre-painted. with colorbond XRW (xterior roofing, walling paint system of 15 micron Super Durable Polyester paint (SDP) with stable inorganic pigment with no lead contents confirming IS15965. 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 genuinits of the material, (i) In Roof:- a) With 0.5 mm thick sheet

Roof treatment by application of non toxic polyurethane modified acrylic based single component (P U Roof Coat) solvent free, cold applied polyurethane modified elastomeric waterproofing membrane with excellant UV resistant capasity as per ASTM D6083fa water based 100%acrylic elastomeric emulsion polymer latex coating .,.. used as protective coating for roofs} after preparing the surface by cleaning and ti repairing the roof cracks by cement & sand mortar (1:4), preferably withi!: antishrinkage mortar (to be paid separately) if any, apply two coats along with a5 ~ IPrimingcoat(two coats of P U Roof Coat and one coat of primer coat compatible with Sqm. i main product as per manufacturers specification) and reinforced with or without 20 ~ gsm GeotextileFleece, including the cost of primer coat and basepreparation, tools & IPlantsbut excluding the cost of scaffolding and stagging complete as per direction of Engineer -in-charge. (Note: If Geotextile Fleece not uesd ,the rate would be reduced by Rs. 5/-per Sqm)

Dismantling carefully terraced floor only (including floor finish if any) or lime terracing in ground floor roof and removing rubbish as directed within a lead of 75m.

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

Labour for taking out steel door and window frame for repairs and re-fixing the same (or replacement by new one) including mending good damages (excluding the cost of repair of damages) and applying a protective coat of paint. Upto one sq.m.area of frame.

Supply of UPVC pipes (B Type) & fittings conforming to IS-13592-1992 (a) 75 mm. Dia.

Fittings x) Bend 87.5º 160 mm dia

(ii) Plain Tee 160 mm dia

(ii) Reducing Tee (160 X 110 mm)

(ii) Door Tee (160 mm dia)

Vent Cowl (160 mm dia)

Vent Cowl (75 mm dia)

Pipe clip (75 mm)

Pipe clip (160 mm)

Supplying, fitting and fixing stainless steel sink complete with waste fittings and two coats of painting of C.I. brackets. (a) Sink only (ii) 630 mm X 550 mm X 180 mm

Supplying, fitting and fixing 10 litre P.V.C. low-down cistern conforming to I.S. specification with P.V.C. fittings complete,C.I. brackets including two coats of painting to bracket etc.

Supplying, fitting and fixing Closet seat of approved make with lid and C.P. hinges, rubber buffer and brass screws complete. (b) Anglo Indian.(ii) Plastic (hallow type) white

Supplying, fitting and fixing white vitreous china best quality approved make wash basin with C.I. brackets on 75 mm X 75 mm wooden blocks, C.P. waste fittings of 32 mm dia., one approved quality brass C.P. pillar cock of 15 mm dia., C.P. chain with rubber plug of 30 mm dia., approved quality P.V.C. waste pipe with C.P. nut 32 mm dia., 900 mm long approved quality P.V.C. connection pipe with heavy brass C.P. nut including mending good all damages and painting the brackets with two coats of approved paint. (i) 630 mm X 450 mm size

Supplying,fitting and fixing approved brand P.V.C. CONNECTOR white flexible, with both ends coupling with heavy brass C.P. nut, 15 mm dia (iii) 600 mm long

Supplying,fitting and fixing approved brand 32 mm dia.P.V.C. waste pipe, with PVC coupling at one end fitted with necessary clamps.

Supplying P.V.C. water storage tank of approved quality with closed top with lid (Black) - Multilayer (d) 2000 litre capacity

Labour for hoisting plastic water storage tank. (ii) Above 1500 litre upto 5000 litre capacity. (a) Upto 1st story from G.L.

Labour for punching hole in plastic water storage tank upto 50 mm dia.

Labour for fitting and fixing U.P.V.C. pipes for above ground work including cost of jointing materials etc. fitting and fixing all necessary specials, cutting pipes, cutting holes in walls or R.C. floor where necessary and mending good all damages excluding the cost of masonry or concrete work, if necessary, but including the cost and fitting and fixing holder bat clamps (any floor) or for underground work including cutting trenches upto 1.5 metre and refilling the same complete as per direction of the Engineerin-charge. (Payment will be made on centre line measurement of the total pipeline including specials. (i) 75 mm

Cleaning E.P. or Anglo-Indian W.C. with acid.

Supplying, fitting and fixing towel rail with two brackets. (a) C.P. over brass (iii) 25 mm dia. and 750 mm long

Making connection with the existing pit.

Cleaning silt of inspection pit.

Removing sludge from septic tank, soak well etc. by methor labour including disposal of the same outside the compound as directed. (d) Upto 100 users:

Cleaning soak pit by removing the top slab and replacing inner filling with jhama bats and repairing the pit as necessary including fitting the slab.

Cleaning silt of master trap pit.

GST @ 18% of Estimated cost

Labour Wellfare Cess @1% of Estimated cost with GST

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