27/NIT/BSNL/CD/HBL/2025-26

Demolishing lime concrete manually/ by mechanical means and disposal of material within 50 metres lead as per direction of Engineer in-charge

Dismantling tile work in floors and roofs laid in cement mortar including stacking material within 50 metres lead.

For thickness of tiles 10 mm to 25 mm

Dismantling of flushing cistern of all types (C.I./PVC/Vitreous China) including stacking of useful materials near the site and disposal of unserviceable materials within 50 metres lead.

Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish dumping ground within 50m lead excluding the cost of scaffolding.

Chipping of unsound/weak concrete material from slabs, beams, columns etc. with manual Chisel and/ or by standard power driven percussion type or of approved make including tapering of all edges, making square shoulders of cavities including cleaning the exposed concrete surface and reinforcement with wire brushes etc. and disposal of debris for all lead and lifts all complete as per direction of Engineer-In-Charge

50mm average thickness

25mm average thickness

Cleaning of reinforcement from rust from the reinforcing bars to give it a total rust free steel surface by using alkaline chemical rust remover of approved make with paint brush and removing loose particles after 24 hours of its application with wire brush and thoroughly washing with water and allowing it to dry, all complete as per direction of Engineer-In-Charge.

Bars upto 12 mm diameter

Providing, mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and direction of Engineer-In-charge complete in all respect.

SBR Polymer (@10% of cement weight) modified cementitious bond coat @ 2.2 kg cement per sqm of surface area mixed with specified proportion of approved polymer

Providing, mixing and applying SBR polymer (of approved make) modified Cement mortar in proportion of 1:4 (1 cement: 4 graded coarse sand with polymer minimum 2% by wt. of cement used) as per specifications and directions of Engineer-in-charge. Note: Measurement and payment: The pre-measurement of thickness shall be done just after the surface preparation is completed and Payment under this item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding / tapping with a blunt metal instrument and/or the 75mm size cube crushing strength at the end of 28 days to be not less than 30 N/Sqmm2).

12 mm average thickness. -

25 mm average thickness in 2 layers.

Providing and fixing double scaffolding system (cup lock type) on the exterior side, up to seven story height made with 40 mm dia M.S. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after .The scaffolding system shall be stiffened with bracings, runners, connection with the building etc wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and approval of Engineerin-charge .The elevational area of the scaffolding shall be measured for payment purpose .The payment will be made once irrespective of duration of scaffolding.

Note: - This item to be used for maintenance work judicially, necessary deduction for scaffolding in the existing item to be done.

Removing weeds grown on walls/terrace along with roots,cleaning the spot and pouring the dilute acid so that weed should not grow in future with necessery tools and plants but excluding cost of scaffolding which will be seperately etc all complete as directed by the Engineer in charge.

Demolishing RCC work manually/by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead: (excluding cost of scaffolding)

Cleaning terrace / Chajjas at all levels by removing dust (dirt), debris if any and disposing the same beyond the TE premises all complete as per direction of Engineer - in - charge (The item includes removal of weeds grown on terrace and also all incidental laboures, materials, tools and plants etc., and nothing extra shall be paid on any account)

Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.50 Sq.meter and under including cutting the raking out joints and prepring and plastering the walls complete,including disposal of rubbish to the dumping ground within 50 meters lead excluding the cost of scaffolding

With cement mortar 1:4 (1 cement : 4 fine sand)

Providing and laying Ceramic glazed floor tiles of size 300x300 mm(thickness to be specified by the manufacturer) of 1st quality conforming to IS : 15622 of approved make in colours such as White, Ivory, Grey, Fume Red Brown, laid on 20 mm thick cement mortar 1:4 (1 Cement :4 Coarse sand), jointing with grey cement slurry @ 3.3kg/sqm including pointing the joints with white cement and matching pigment etc.,., complete.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :

1:2:4 (1 cement : 2 coarse sand(zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

Providing and fixing on wall face UV stabilized PVC SWR pushfit pipes Type A with minimum wall thickness 3.2mm conforming to IS : 13592 and IS 14735 with prefitted rubber washer in groove with adequate gap for thermal expansion / contraction

i) Single socketed SWR Push fit pipes.

110 mm dia.

Providing and fixing unplasticised -PVC pipe clips of approved design to PVC SWR pipes by means of masonary / concrete nails with plugs, etc. all complete as directed by the Engineer in charge.

110 mm dia.

Providing and fixing wash basin with C.I. brackets, 15 mm PTMT pillar cock, 32 mm PTMT waste coupling of standard pattern, including painting of fittings and brackets, cutting and making good the walls wherever required. White Vitreous China Flat back wash basin size 550x400 mm with single 15 mm PTMT pillar cock.

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply, including all CPVC plain & brass threaded fittings, including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step CPVC solvent cement and testing of joints complete as per direction of Engineer in Charge. : Internal work - Exposed on wall

15 mm nominal outer dia. Pipes.

20 mm nominal outer dia. Pipes.

25 mm nominal outer dia. Pipes.

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply including all CPVC plain & brass threaded fittings. This includes jointing of pipes & fittings with one step CPVC solvent cement, trenching, refilling & testing of joints complete as per direction of Engineer in Charge : External work

40 mm nominal outer dia. Pipes.

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) :

25 mm nominal bore

40 mm nominal bore

Providing and fixing uplasticised PVC connection pipe with brass unions :

45 cm length

15 mm nominal bore

Providing and fixing PTMT bib cock of approved quality and colour.

15mm nominal bore, 90 mm long. Weighing not less than 93 gms.

Providing and fixing PTMT stop cock of approved quality and colour.

15 mm nominal bore, 86 mm long. Weighing not less than 88 gms.

Providing and fixing PTMT pillar cock of approved quality and colour .

15mm nominal bore, 125 mm long foam flow. Weighing not less than 120 gms.

Providing and fixing PTMT grating of approved quality and colour.

Circular type.

100 mm nominal dia.

Providing and fixing P.V.C. low level flushing cistern with manually controlled device (handle lever) conforming to IS : 7231, with all fittings and fixtures

10 litre capacity - White

Providing and fixing P.V.C. waste pipe for sink or wash basin including P.V.C. waste fittings complete.

Semi rigid pipe

32 mm dia

Providing and fixing mirror of superior glass (of approved quality) and of required shape and size with plastic moulded frame of approved make and shade with 6 mm thick hard board backing :

Rectangular shape 453x357 mm

Cleaning of under ground sump, Over Head R.C.C. Tank (independent staging) including disposal of slit and rubbish, all as per direction of Engineer-in-Charge. The cleaning shall consist following operations:-

(i) Tank shall be emptied of water by pumping & bottom shall be cleaned of slit and other deposits.

(ii) Entire surface area of the sump shall then scrubbed thoroughly with wire brush etc. and pressure washed with water.

(iii) Chlorination of RCC internal surface by liquid chlorine.

(v) Finally the surface shall be treated with ultraviolet radiation etc. as per direction of Engineer-in-Charge.

Cleaning of terrace/loft water storage tank (inside surface area) upto 2000 litre capacity at all heights with coconut brushes, duster etc., removal of silt, rubbish from the tank and cleaning the tank with fresh water disinfecting with bleaching powder @ 0.5gm per litre capacity of tank, including marking the date of cleaning on the side of tank body with the help of stencil and paint and disposing of malba, all complete as per direction of Engineer-in-Charge. (The old date already written on tank should be removed with paint remover or black paint and if date is not written with the stencil or old date is not removed deduction will be made @ Rs. 0.10 per litre if during cleaning any GI fittings or ball cock is damaged that is to be repaired by contractor at his own cost and nothing extra will be paid on this account)

Dismantling of flushing cistern of all types (C.I./PVC/Vitreous China) including stacking of useful materials near the site and disposal of unserviceable materials within 50 metres lead.

Renewing glass panes, with putty and nails wherever necessary including racking out the old putty, at all heights excluding cost of scaffolding etc complete.

Float glass panes of thickness 4 mm (weight not less than 10kg/sqm)

Removing dry or oil bound distemper, water proofing cement paint and the like by scrapping, sand papering and preparing the surface smooth including necessary repairs to scratches etc. complete.

Distempering with 1st quality acrylic distemper (ready mixed) having VOC content less than 50 gram/litre, of approved manufacturer, of required shade and colour all complete :

New work (two or more coats) over and including water thinnable priming coat with cement primer having VOC content less than 50 gram/litre

Finishing walls with Acrylic Smooth exterior paint of required shade :

New work (Two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/10 sqm)

Cleaning Man Holes of all depths including using boning rod, removing sludge,waste material and disposin off the same beyond the quarters premises etc all complete as directed by the engineer in charge a) 90 Cm x 80 cm manhole

Cleaning chokage of drainage line including using of boning rod ,removing of waste material, and disposal of the same beyond the qtrs premises etc all complete as directed by the engineer incharge.

Providing and applying non shrink high strength powder crack filler of Dr.Fixit crack powder or equivalent after opening the crack by grinder to ascertain its actual width and depth after making the surface free from oil,dust and grease.Crack filling powder to be applied in paste form by adding clean water in proportion as specified by manufacturer and then press into the crack by using a spatulla or putty knife etc. all complete as per direction of Engineer in charge excluding cost of scaffolding.

Repairs to wooden doors / Windows including removing and refixing with necessary planning, chiseling and provoding S.S. angles at corners for proper fitting, providing hinges as required etc. complete and as directed by the Engineer in charge.

Providing and fixing aluminium hanging floor door stopper, ISI marked, anodised (anodic coating not less than grade AC 10 as per IS : 1868) transparent or dyed to required colour and shade, with necessary screws etc. complete.

Twin rubber stopper

Repairs to M.S. door shutter of size 0.90x2.00 M stair room at third floor by loosening the hinges, neecssary cutting and welding damaged hinges and oiling and greesing of hinges etc complete and as per direction of Engineer in charge.

Disconnecting abendened overhead/terrace PVC water storage tank of 1000 litres capacity from water supply line, removing from the terrace and shifting to terrace of another building at new platform including connecting to existing outlet with necessary unions, outlet connection pipe and other fixtures including all leads and lifts involved and as per direction of Engineer-in- charge.

Making connection of G.I. distribution branch with G.I. main of following sizes by providing and fixing tee, including cutting and threading the pipe etc. complete :

25 to 40 mm nominal bore