Maintenance work

Providing and erecting two-legged pipe scaffolding using 40 mm diameter first-class M.S. pipes for all required heights at site, including supply of materials and assembling with vertical standards, horizontal ledgers, and cross bracings arranged at proper spacing to ensure structural stability and worker safety. All cross bracings shall be fixed using approved couplings such as standard couplers, right-angle couplers, EJP couplers, and all other necessary fittings to ensure rigidity. Suitable base plates shall be provided under each vertical member for firm anchorage and uniform load distribution. The work includes complete erection with proper alignment, plumb, and provision of safe working platforms wherever required, along with all charges for conveyance of materials, loading, unloading, and incidental labour. Upon completion of the departmental work, the scaffolding shall be dismantled safely, all materials removed from the site, and the area cleaned, strictly complying with standard specifications and as directed by the departmental officers.

Dismantling , removing and carefully stacking Doors & windows including removal of frames,hinges and fastenings etc., complete complying with standard specification and as directed by the departmental officers at site of work.

Dismantling , removing and carefully stacking Brick/stone in clay walls under 3m high etc., complete complying with standard specification and as directed by the departmental officers at site of work.

Dismantling the damaged floor finish and dadooing walls in cement mortar with mosaic tiles / Glazed tiles/cuddapah slab and clearing away with carefully stacking the material useful for reuse for any thickness etc., complete complying with standard specification and as directed by the Departmental officers.

Earth work excavation for foundation by manual means for Isolated, Combined and Other type foundations in all soils and sub-soils and to full depth as may be directed except in rock requiring blasting inclusive of shoring shuttering, bailing out water wherever necessary and depositing the surplus earth within the compound in places shown by the departmental officers with an initial lead of 10 mts and initial lift of 2.00mts. and clearing and levelling the site, etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and filling in foundation, basement, etc with filling M. sand in layers of not more than 15 cm thick well watered, rammed and consolidated etc. complete complying with standard specification and as directed by the departmental officers.

Plain Cement Concrete 1:5:10 (One Cement, Five sand and Ten hard broken stone jelly) using 40 mm gauge hard broken granite stone jelly for foundation including dewatering wherever necessary and laid in layers of not more than 15 cm thick well rammed, consolidated and curing etc. complete complying with standard specification

Supplying and erecting steel centering including necessary supports for plane surfaces for Reinforced Cement Concrete works such as column footings, column pedestals, plinth beams, grade beams, staircase steps, Sill slabs etc. which require only nominal strutting using mild steel sheets of size 90cm x 60cm and 10 BG stiffened with welded mild steel angles of size 25mm x 25mm x 3 mm for boarding, laid with silver oak joists of size 10cm x 5cm & 7.5cm x 5cm as support runner, vertical stiffener, side support and Top Horizontal stiffener spaced at about 60cm to 90cm centre to centre or at suitable intervals etc. complete in all floors complying with standard specifcation. (Payment for centering shall be given after the concrete is laid).

Providing and laying in position, Standardised Concrete Mix M-30 Grade using In-situ Concrete batching plant/ Ready Mix Concrete (RMC) adopting weigh batch method in accordance with IS:456-2000 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 400 kg/m3 and maximum water cement ratio of 0.45, including admixture (plasticiser / superplasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5.0 cu.m.) 7730 kg. of 20mm machine crushed stone jelly and with about (3.3 cu.m.) 5156 kg. of 10-12mm machine crushed stone jelly and with about (4.79 cu.m') 7670 kg. of crushed stone sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including Conveyance of concrete from batching plant to Work site, Electricity charges and other works & labour cost involved for concrete production, laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor/ roof slabs wherever necessary without claiming extra, etc., complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS Standards. (No separate payment will be made by the Department for the excess usage of materials).

Foundation and Basement

Supplying, fabricating and placing in position Mild Steel / Ribbed Tor Steel reinforcement grills of all variety like HYSD/CTD/TMTand all grade like Fe 500, Fe550D, Fe 500 D etc., for all RCC works as per design given including cost of steel reinforcement and G.I. binding wire, wastage etc. complete complying with standard specification and as directed by the departmental officers.(Contractor has to make his own arrangements for the supply of steel reinforcement and binding wire)

Brick work in following Cement Mortar using Fly Ash Bricks of 230 x 110 x 70mm size conforming to IS: 12894-1989 Class designation not less 50 kg./ sq.cm. average compressive strength in cement mortar 1:5 for load bearing structures for foundation and basement and for superstructure including curing, etc., complete complying with standard specification.

Ground floor

Plastering with Cement Mortar 1:5 (One cement and Five Plastering sand), 12mm thick in all floors including mortar plasticizer at 200ml per 50Kg of cement used, curing etc. complete complying with standard specification and as directed by the departmental officers.

Old Terrace tile surface repair with UV Resistant hybrid waterproofing coating. Providing and Applying Polyurethane hybrid liquid applied GRIHA certified Waterproofing coating with flutyne protection technology, single component, cold applied, water based acrylic and UV resistant water proofing treatment to the Existing Roof having Tile or any non-porous surface applied @ 1.5 l/m2 in 2 coats to achieve 1mm DFT, having tensile strength with 45 gsm glass fibre mesh 4N/mm2 confirming to ASTM D 412; Elongation at break ≥ 300% and Crack bridging ability up to 3mm, SRI Index 106 as per ASTM E 1980- 01, Water permeability @5 bar – Nil as per EN12390 - 8:2019, including surface preparation, priming the surface with single component high-performance waterborne tile primer which is suitable for non - porous surface at a rate of 0.14 L/m2 and spreading 45 gsm glass fibre mesh of 2.5 mm x 2.5 mm sandwiched between the first and second coat completely as per specification. The finished cost to include surface preparation, making coving at Junction, treatment of cracks completely as per specification.

Structural Strengthening with Epoxy Injection Grout. Providing and grouting with two component low viscous Moisture Insensitive Epoxy Injection Grout to strengthen the structure at cocrete cracks. The material having mixing ratio - (Base : Hardener) - 100:60 (by weight) at the rate of 0.50kg/nozzle, which gives compressive strength of 70N/mm2 in 7days as per BS6319:part 2, Flexural strength of 30N/mm2 in 7days as per BS6319:part 3, Tensile strength of 15N/mm2 in 7days as per BS6319:part 7, epoxy resin based injection grout meets the requirement of BS 6319 & ASTM C 881. The finished cost to include surface preparation, fixing of non-return valve injection packers at concrete cracks, seal the nozzles with polyester resin anchor grout Instant leak plug 0.2kg/nozzle. All the application procedure shall be as per the direction of the Engineer In charge.

Providing Post constructional Anti termite treatment by drilling 1/2" dia holes at uniform intervels of 12" at the junction of the building and the Chemical Chlorophyriphos 20% Equivalent will be walls and floors to a depth of 4" to 5" inside or as directed by the departmental officers. The building and the chemical Chlorophyriphos 20% Equivalent will be quirilled inside these hole leg using hand pressure pumps from itrs fills to it refusal. The wooden frame will be spread by the same termicide solution center pheriphery of the building will be treated by the making a small chamel around the building and the holes are to be made by ysing crow bar around termicide Chlorophyriphos to be squrilled inside these holes after completion of treatment all holes drilling in the walls and floor closed by cement etc complete complying with std spn, and as directed by the departmental officer. The chemical is to be used on the work should be got approved by the executive engineer's before use on the work

Providing and Applying CFTRI approved two component flexible polymer modified acrylic cementitious waterproofing coating with a mix ratio of (1 Liquid: 2 Powder), to the RCC surface like bathroom, toilet, balcony & utility area applied @ 1.7kg/ m2 in 2 coats to achieve 1mm DFT, having Elongation at break >50% as per ASTM D 412, Tensile strength >1N/ mm2 as per ASTM D 412, Adhesion strength: 0.80 N/ mm2 as per ASTM D 4541, crack bridging upto 1mm as per ASTM C 836, Water penetration (5 bar pressure) as per BS EN 12390. The finished cost to include surface preparation, making coving of 50 mm X 50mm at all right angles of wall Junction with Polymer Repair Mortar and lay 45 gsm glass fibre mesh over the angle fillet when the first coat in still wet, treatment of cracks completely as per specification.

Supplying and Filling the Brick Jelly Lime Concrete 1:2:5 using 20mm brick jelly in Lime Mortar 1:2 using limestone and sand 10 cu.m. (for Non-Structural works only) etc., complete complying with standard specification and as directed by the departmental officers.

Plain Cement Concrete 1:2:4 (one cement, two crushed stone sand and four hard broken stone jelly) using 20mm jelly for wearing coat including laying, compacting, finishing and curing, etc., complete as per standard specificatins and as directed by the departmental officers.- Mixing by manual means

Paving the floor with best quality double chared vitrified Tiles of size 600x600x8mm and variety conforming IS 15622 with water absorbtion less than 0.08% of approved colour and shade laid over cement mortar bed of 20mm thick in cement mortar 1:3 (one cement and three crushed stone sand) with required Cement Slurry and Mortar Plasticizer in all floors and the top pointed with Water Resistant Tile Epoxy Grout etc., complete complying with standard specification and as directed by the departmental officers. (The make and brand of the tiles should be got approved by Executive Engineer before use on works)

Flooring with ceramic tiles of Self Designed Colour Ceramic Tiles of size 305 x 305 x 6mm size and variety conforming to IS 15622 laid over cement mortar bed of 20 mm thick in cement mortar 1:3 (One Cement and Three crushed stone Sand) with required Cement Slurry and Mortar Plasticizer including cutting the tiles to the required size with special cutter wherever necessary, laying in position and pointing with Water Resistant Tile Epoxy Grout at the rate of 0.27 Kg. / sq.m. etc., complete complying with standard specification and as directed by the departmental officers. (The make and brand of the tiles should be got approved by Executive Engineer before use on works)

Dadooing walls with printed design colour glazed tiles of size 300 x 450 x 8mm best approved quality, white / colour glazed tiles conforming to IS 15622 of following sizes in Cement Mortar 1:2 (One Cement and Two crushed stone sand),10 thick with Mortar Plasticizer and pointing the joints with Water Resistant Tile Epoxy Grout at the rate of 0.27 Kg. / sq.m. neatly in all floors, curing, etc., complete complying with standard specification and as directed by the departmental officers.(The make and brand of the tiles should be got approved by Executive Engineer before use on works)

Supplying and fixing Teak wood scantlings for door and windows and any other joinery works using teak wood scantlings below 4m in length and complete it in all floors including labour charges for the manufacture of frames as per standard specification.

Supplying, fixing and closing window open by using the Glass 12mm thick approved quality, including necessary screws and nails labour charges etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and fixing solid core flush shutter of following type with thickness with necessary T.W. internal lipping alround conforming to IS 2202-1(1999) including cost of wind appliances and furniture fittings such as 3 Nos of SS 304 Grade Parliament Hinges of Size (125mm x 150mm), 2 Nos 300x12mm aluminium tower bolt 1 No. 200x12mm aluminium tower bolts 1no. 250x16mm aluminium aldrops, 2 nos. 200mm ‘D’ type aluminium door handle and door stopper with bush etc., complete complying with standard specification and as directed by the departmental officers. Single leaf door shutter type:35mm thick

Supplying and fixing solid core flush shutter of following type with thickness with necessary T.W. internal lipping alround conforming to IS 2202-1(1999) including cost of wind appliances and furniture fittings such as 6 Nos of SS 304 Grade Parliament Hinges of Size (125mm x 150mm), 3 Nos. 300x12mm aluminium tower bolt 1 No. 200x12mm aluminium tower bolts 1no. 250x16mm aluminium aldrops, 3 nos. 200mm ‘D’ type aluminium door handle and door stopper with bush etc., complete complying with standard specification and as directed by the departmental officers. double leaf door shutter type:35mm thick

Supply & fixing of WPC door shutter, extruded as a single core board with rigid WPC compound with the thickness of 25mm (+/- 1mm) & minimum Bulk Density of 550 KG/Cub.Mt. & shore hardness of 55. The door shall be a plain matt board as decided by the Engineer in-Charge of the department. The WPC door shall be fixed onto the Aluminium “G” type channel with Wheel and the door shall have 2 Hooks in SS, 2 Handles 4” in SS (Sliding door) etc., complete and as directed by the departmental officers.

Supplying and fixing UPVC (Un-Plasticized Polyvinyl Chloride) Windows of casement type (open) from the profile the size of outer frame 60mm x 58mm and shutter profile are reinforcement with GI/1mm 125GSM and 100% corrosion free, the profiles are multi chambered sections with wall thick of 2mm. The EPDM rubber (black colour) covered with over all the edges of frame and shutter the shutter will be provided with Espag multi power point locks and also it operates as handle. The corners and joints should be welded and cleaned. Radiations free pin headed plain or brown colour glass 4mm thick should be provided to the shutter and it should not allow leakage of water even at most ranging storms and should have key lockable action, security protective hinges, strong locking systems and as per size for arresting noise and energy loss. The connecting mechanism between sash and outer frame that enables opening of the window. The window should be fixed to the wall with 100% packing with screws and silicon packing all round the frames. The window should be got approved from the Executive Engineer before use on work

Supplying and fixing UPVC (Un-Plasticized Polyvinyl Chloride) Louvered Ventilators of from the profile the size of outer frame 60mm x 58mm and shutter profile size of 60 x 78mm both profiles are reinforced with GI/1mm 125GSM and 100% corrosion free, the profile are multi chambered sections with wall thick of 2mm. The EPDM rubber (black colour) covered with all over the edges of frame and shutter. The corners and joints should be welded and cleaned. Radiations pin headed glass 4mm thick should be provided in the louvers. The window should be fixed to the wall with 100% packing with screws and silicon packing all round the frames. The ventilator should be got approved from the Executive Engineer before use on work

Renewing and fixing Mild Steel Grills for windows and ventilators etc., including the cost of mild steel angles, plates, rods, cost of welding charges and one coat of priming coat etc., complete.(The design should be got approved by the departmental officers.)

Supplying and fixing in positon Indian Water Closet (Oriya type) of size 580 x 440mm white glazed earthern ware of approved quality and brand with “P” or “S” trap conforming to BIS with crushed stone sand cushion and forming flooring alround the closet using 40mm broken brick jelly in lime concrete 1:2:5 (One lime, Two crushed stone sandand Five brick jelly) 100mm thick and finishing the top to the required slope and including giving necessary connection to CI soil pipes (including the cost of 100mm dia CI pipe for a length of 600mm) by dismantling brick masonry wall / reinforced cement concrete roof / floor slab and making good the dismantled portion to the original condition with leakages etc., complete complying with standard specifications and as directed by the departmental officers. (The water closet should be got approved by the Executive Engineer before use on works).

Supplying and fixing in position best quality and approved make Indian made white glazed earthernware wash hand basin of size 550 x 400mm without pedestal with a pair of cast iron brackets, including cost 15mm dia brass CP pillar tap, 32mm dia "B" class GI waste pipe with rubber plug and chain, 15mm dia GM wheel valve, 15mm brass nipple, 15mm dia nylone connection, 32mm dia CP brass waste coupling including fixing of wash basin using CI brackets on to the wall in position with TW plugs and screws, rubber washers, white lead and giving necessary water supply connection and painting the brackets with two coat of painting over a priming coat of anti-corrosive paint including testing for leakages etc., complete complying with standard specification and as directed by the departmental officers. (The wash hand basin and specials should be got approved by the Executive Engineer before use on works).

Renewing Refixing in position of CP Two way Bib cock with Health faucet with new one of Health faucet 15mm dia of approved quality and make including labour charges for fixing in position etc complete complying with standard specification and as directed by the departmental officers.

Renewing and refixing in position of SS heavy duty Long body tap of approved quality make to IS Specification (Gross weight shall not be less than 400grams) and quality including cost of shellac, thread etc., complete complying with standard specification and as directed by the departmental officers.

Renewing and refixing in position of CP Angle Cock Tap of approved quality make conforming to IS Specification (Gross weight shall not be less than 400grams) and quality including cost of shellac, thread etc., complete complying with standard specification and as directed by the departmental officers.

Renewing and refixing in position 18 inch long HDPE connection hose is approved quality including cost of materials etc., complete and as directed by the departmental officers.

Renewing and refixing in position of 32mm dia waste hose is approved quality including cost of materials etc., complete and as directed by the departmental officers.

Supplying and fixing in position best quality PVC soil / waste pipes of various dia having 6 kg / sq.cm. pressure BIS mark and providing leak proof joints using PVC adhesives including fixing to the wall with special PVC / MS clamp, teak wood plugs, brass screws, etc., and making connection to all sanitary fittings, dismantling masonry / RCC works wherever found necessary and making the good dismantled portion to the original condition, including testing for any leakages, etc., complete complying with standard specifications. (The PVC pipes should be got approved by the Executive Engineer before use on works). The rate for earth work excavation will be measured and paid separately in the cases where the pipe lines are proposed to laid below ground level

110mm dia PVC pipe

Supplying and fixing in position PVC specials of the following dia and types of approved quality confirming to BIS and providing leak proof joints including fixing to the walls and giving connection to the PVC soil stacks, dismantling the masonry or RCC works and re-doing the dismantled portion to original condition etc., complete complying with standard specifications. (The PVC specials should be got approved by the Executive Engineer before use on works).

110mm dia PVC Elbow

110mm dia PVC Bend

Renewing and laying and jointing UPVC Pipe(Un-Plasticized Polyvinyl Chloride) UPVC used for commercial applications operate and designed to handle higher water pressure (schedule-80) but excluding cost of such specials and fixing in position dismantling masonry and make the same to original condition etc complete complying with standard specification and as directed by the departmental officers at site of work.

25mm dia UPVC Pipe

20mm dia UPVC Pipe

Supplying and fixing UPVC Specials in water supply arrangements (both in internal and external water supply arrangements.

25 mm dia Coupler

20 mm dia Coupler

25 mm dia Elbow

20 mm dia Elbow

Supplying and fixing position CI Nahani Trap / Floor Trap of the size 100x75mm with best stainless steel gratings of approved brand and quality, fixed over a bed of brick jelly lime concrete 1:2:5 (One part of lime, two part of sand and five part of 40mm gauge brick jelly) and finished with Cement Mortar 1:3 (One Cement, Three sand) including dismantling masonry works wherever found necessary and making good the dismantled portions to the original condition and giving connection to the CI / PVC pipes, etc., complete complying with standard specification. (The Nahani Trap should be got approved by the Executive Engineer before use on works)

Construction of INSPECTION CHAMBER following clear sizes including earth work excavation, CC 1:5:10 of 10 cm thick and brick work in Cement Mortar 1:5 [One cement and Five sand] using best quality of Clay burnt Bricks of size 9” x 43/8” x 23/4” with Class designation of 7.5 and Plastering with Cement Mortar 1:3 [One Cement and Three Plastering Sand] 12 mm thick to inner and outer sides and wearing coat 1:3:6 [One Cement, Three crushed stone sand and Six Aggregate] 15 cm thick and covered with precast slab 5 cm thick etc., complete complying as directed by the departmental officers as per standard specification.600x600mm

Supplying and fixing in position Special Type Mirror of size 1000 x 780mm of approved quality and brand PVC / Fibre Glass framed 600 x 450 x 5.5mm thick mirror, shelf type with hard board backing of approved colour fixed with brass screws, rawl plug, etc., complete complying with standard specification. (The mirror should be got approved by the Executive Engineer before use on woks)

Supplying and fixing approved best quality brass CP towel rail 600mm long and 20mm dia with brackets of same materials including cost of teak wood plugs and CP screws, etc., complete complying with standard specifications. (The tower rail should be got approved by Executive Engineer before use on works).

Supplying and fixing best approved best quality brass CP soap tray of size 150 x 150mm including cost of teak wood plugs, brass screws, etc., complete complying with standard specifications. (The soap tray should be got approved by Executive Engineer before use on works).

Supplying and applying with one coat Putty over plastered wall surface of first class approved quality including thorough scrapping, clean removal of dirt wherever required etc., complete complying with standard specification.

Painting the wall two coats with approved Interior Emulsion paint over one primer coat on cement plastered wall surface ect., complete complying with standard specification and as directed by the departmental officers.

Painting the wall two coats with approved weather proof Exterior Emulsion paint over one primer coat on cement plastered wall surface ect., complete complying with standard specification and as directed by the departmental officers.

Painting new iron works such as steel doors, windows, ventilators, window bars, balustrades etc., with Two coats of best approved first quality and colour of synthetic enamel paint over the existing red oxide priming coat in all floors excluding cost of priming coat etc., complete complying with standard specification and as directed by the departmental officers. (The make, quality and colour of paint should be got approved by the Executive Engineer before use on works.)

Painting new wood work with two finishing coats of synthetic enamel ready mixed paint of approved quality and colour over one coat priming coat in all floors including the cost of primer etc., complete complying with standard specification and as directed by the departmental officers. (The make, quality and colour of paint should be got approved by the Executive Engineer before use on works.)

Supplying and fixing with new mild steel hollow pipes/ purlins / Hollow section M.S. Posts/ M.S. Pipes of approved quality and brand including labour charges for cutting and welding with required size an complete complying with standard specification and as directed by the departmental officers

Supplying, fixing and roofing with colour galvalume sheet of 0.47mm thick with all necessary accessories such as J/V bolt and nuts of suitable length with suitable bitumen washers complete complying with standard specification and as directed by the departmental officers.

Collecting the scattered debris from the campus and coveying away the same to outside by lorry to a lead of not less than 10km within city limit including loading and unloading charges and dumping in low place and levelling etc., complete complying with standard specification and as directed by the departmental officers.

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