Repair/Restoration of damaged infrastructure of drinking water scheme under Silachari R.D Block, Gomati District, Tripura /SH- Renovation of 5 (fIVE) nos. of semi permanent pump house and other allied works etc at DULUCHARI PARA, DEBENDRA PARA, SU

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan) including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. -All kinds of soil

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m. All kind of soil

Supplying and filling in plinth, under floor, foundations etc. with sand (fine) from local quarry with all lifts including spreading in horizontal layers, watering, grading to required slope, ramming, consolidating and compacting each layer by using plate compactor or by any suitable method complete.

Demolishing cement concrete manually/ mechanicalmeans including disposal of material with all lifts and upto 50 m lead etc. complete as per direction of Engineer-in-charge. ( I ) Nominal concrete 1 : 4 : 8 or leaner mix (i/c. equivalent design mix )

Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering - i) 1:4:8 ( 1 Cement: 4 fine sand : 8 graded well burnt brick aggregate 40 mm nominal size)

Providing and laying in position specified grade of reinforced cement concrete excluding the cost of centring, shuttering, finishing and reinforcement- -All work upto plinth level: i) 1:2:4 ( 1 Cement: 2 fine sand : 4 graded well burnt brick aggregate 20 mm nominal size)

Centering shuttering including struttings, propping etc. and removal of form work for: i) Foundations, footings, bases for columns etc. for mass concrete with timber plank

ii) Suspended floors, roofs, landings, balconies and access platform with timber planks

iii) Lintels, beams, plinth beams, girders, bressumers and cantilevers with wooden plank

iv) Columns, Pillars, Piers, Abutments, Posts and Struts with wooden plank

Reinforced cement concrete work in beams, suspended floors, roofs having slope upto 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases upto floor five level excluding the cost of centring, shuttering, finishing and reinforcement- i. 1:2:4 ( 1 Cement: 2 fine sand : 4 graded well burnt brick aggregate 20 mm nominal size)

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and skirting courses, fillets, columns, pillars, piers, abutments, posts and struts etc. upto floor five level excluding cost of centring, shuttering, finishing and reinforcement- i.1:2:4 ( 1 Cement: 2 fine sand : 4 graded well burnt brick aggregate 20 mm nominal size)

Reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto floor five level. i) Thermo-Mechanically Treated bars/Cold twisted deformed steel bars

First class brick work in foundation and plinth including cost of all materials as required complete:- i) In cement mortar 1:4 ( 1 cement : 4 fine sand ).

Extra for brick masonry work in triangular, square and rectangular pillars including cost of all materials as required complete.

Half brick masonry work with first class bricks in superstructure upto floor five level including cost of all materials as required complete:- i) In cement mortar 1:4 ( 1 cement : 4 fine sand ).

Providing and fixing M.S. round holding down bolts with nuts and washer complete as per standard design.

Providing and laying cement concrete 1:2:4 (1 cement: 2 fine sand : 4 graded well burnt brick aggregate) flooring finished with a floating coat of neat cement including cement slurry, rounding of edges and strips and cost of glass strips etc. complete. (i) 40mm thick

Dismantling GS Sheet roofing including ridges, hips, va lleys, gutters wind ties etc. including dismembering and stacking of serviceable materials and unseriviceable materials separately with all lifts and upto a lead of 50 m etc. complete as per direction of the Engineer-in-charge.

Providing corrugated G.S. sheet roofing including vertical/curved surface fixed with polymer coated J or L hooks, bolts and nuts 8 mm diameter with bitumen and G.I. limpet washers or with G.I. limpet washers filled with white lead and including a coat of approved steel primer and two coats of approved paint on overlapping of sheets complete (up to any pitch in horizontal/ vertical or curved surfaces) excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required. (i) 0.63 mm thick with zinc coating not less than 275gm/m2.

Providing ridges or hips of width 60 cm over all in plain G.S. fixed with polymer coated J or L hooks, bolts and nuts 8 mm dia G.I. limpet and bitumen washers complete. i) 0.63 mm thick with zinc coating not less than 275 gm /m2

Dismantling steel work in built up section in channels, angles, tees, flats including all gusst plates, bolts, nuts, cutting rivets, welding including dismembering and stacking of serviceable materials and unserviceable materials separately with all lifts and upto a lead of 50 m etc. complete as per direction of the Engineer-in-charge.

Steel work in built up tubular(round, square or rectangular hollow tubes ettc.) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete. (i) Hot finished welded type (40 mm dia).

Providing and fixing M.S. grills of required pattern in frames of windows etc. with M.S. flats, square or round bars etc. all complete. -Fixed to steel windows by welding.

15 mm cement plaster on the rough side of single or half brick wall of mix. (i). Cement mortar 1:4(1 cement:4 fine sand)

12 mm cement plaster of mix i) In cement mortar 1:4(1 cement : 4 fine sand)

Dismantling old plaster or pointing, raking out joints, cleaning and preparing the surface for re-plastering or re-pointing including disposal of rubbish to the dumping ground with all leads and lifts etc. complete as per direction of the Engineer-in-charge.

Neat cement punning.

Distempering with dry distemper of approved brand and manufacture (two or more coats) of required shade on new work, over and including water thinnable priming coat to give an even shade. [Payment shall be made after submission of Test Certificate issued by the Manufacturer]

Finishing walls with water proofing cement paint of required shade of approved brand and manufacture [Payment shall be made after submission of Test Certificate issued by the Manufacturer] : -New work ( two or more coats applied @ 3.84 kg/10 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 as per direction of the Engineer-in-charge.

Dismantling doors, windows and clerestory windows ( steel or wood ) shutter including chowkhats, architrave, holdfasts etc. complete and stacking within 50 metres lead : ( I ) Of area 3 sqm and below.

Providing and fixing 1mm thick M.S. sheet door with frame of 40x40x6mm angle iron and 3mm M.S. gusset plates at the junctions and corners, & with cleats with bolts & nuts, rivets, locking arrangement, handles, hooks & eyes, pinlets including embedding in cement concrete of required grade for fixing in position, all necessary fittings, including applying a priming coat of approved steel primer etc. complete as required:- -Using M.S. angels 40x40x6 mm for diagonal braces

Providing hold fast of 40 x 5 mm flat iron including fixing to frame with 10 mm diameter bolts, nuts & wooden plugs and embedding in C.C. 1:3:6 (1 cement: 3 fine sand: 6 graded well burnt brick aggregate 20 mm nominal size) block of size 30 x 10 x 15 cm as per clauses of Chapter - 9 of CPWD specification.

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade [Payment shall be made after submission of Test Certificate issued by the Manufacturer]:-Two or more coats on new work

Making plinth protection 50mm thick of cement concrete 1:3:6(1 cement: 3 fine sand: 6 graded well burnt brick aggregate 20 mm nominal size) over 75mm bed of dry brick ballast 40mm nominal size well rammed and consolidated and grouted with fine sand including finishing the top smooth.