Augmentation of water supply with 04 Nos pressed steel over head tank of 1.45 lakh litre under SD-I under CD, APWD,Car Nicobar.

Amount

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.

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

1:3:6 (1 cement : 3 coarse sand (zone-III) : 6 graded stone aggregate 40 mm nominal size derived from natural sources).

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

1:1.5:3 (1 cement: 1.5 coarse sand (zone-III) : 3 graded stone aggregate 20 mm nominal size )

Centering and shuttering including strutting, propping etc. and removal of form for

Foundations, footings, bases of columns, etc. for mass concrete

Lintels, beams, plinth beams, girders, bressumers and cantilevers

Columns, Pillars, Piers, Abutments, Posts and Struts

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level.

Thermo-Mechanically Treated bars of grade Fe-500D or more.

Providing and fixing mild steel round holding down bolts with nuts and washer plates complete.

12 mm cement plaster of mix :

1:4 (1 cement: 4 fine sand)

Fabrication,errection and supply of Galvanised pressed steel tank of size 7.50x7.50x2.50 mtr(1,45,000 ltrs capacity) with deking and with all accessories such as PS plate corner angle, joint angle,roof, internal ladder water level indicator,nut and bolts washers,STP black putty, leads materials, inlet outlet and overflows pipe connection lead wool lead wire etc.

Fabrication,errection and supply of Galvanised pressed steel tank of 6.00 mtr height for PS tank of capacity 1,45,000 ltr including side all around plate leader walkway etc.

Providing and fixing 3 layer PP-R (Poly propylene Random copolymer) pipes confirming to IS:15801 UV stabilized & anti microbial fusion welded, having thermal stability for hot & cold water supply, including all PP - R plain & brass threaded polypropylene random fittings, including trenching, refilling & testing of joints complete as per direction of Engineer-in-Charge. External work

PN - 16 Pipe, 40 mm OD (SDR-7.4)

PN - 10 Pipe, 50 mm OD (SDR-11)

PN - 10 Pipe, 63 mm OD (SDR-11)

PN - 10 Pipe, 75 mm OD (SDR-11)

Providing and fixing PPR Unions

PPR Union 40mm each 442.85

PPR Union 50mm each 667.65

PPR Union 63mm each 842.65

PPR Union 75mm each

Providing and fixing C.I. sluice valves (with cap) complete with bolts, nuts, rubber insertions etc. (the tail pieces if required will be paid separately) :

100 mm dia Class-I

Construction madonry chamber 90x90x100 cm inside with cement concrete 1:3:6 (1 cement :3 coarse sand :6 graded stone aggregate 20 mm nominal size ) for sluice valve, with C.I surface box 100 mm top diameter,160 mm bottom diameter and 180 mm deep (inside) with chained lid and RCC top slab 1.1,5.3 mix (1 cement:1.5 coarse sand :3 coarse 3 stone aggregate 20mm nominal size) necessary excavation foundation concrete 1:5.10 (1 cement :5 fine sand :10 graded stone aggregate 40 mm nominal size) and inside plastering with cement mortar 1:3 (1 cement : 3 coarse sand) 12 mm thick finished with a floating coat of neat cement complete as per standard design.

Constructing masonry Chamber 60x60x75 cm inside, with cement concrete 1:3:6 (1 cement .3 coarse sand :6 graded stone aggregate) for gate valve, with C.I surface box 100 mm top dia,160mm bottom diameter and 180 mm deep (inside) wit chained lid and RCC top slab 1:1.5:3 mix (1 cement : 1.5 coarse sand 3 stone aggregate 20 mm nominal size) i/c necessary excavation foundation concrete 1:5:10 (1 cement : 5 fine sand in graded stone aggregate 40 mm nominal size) and inside plastering with cement mortar 1:3 (1 cement :3 coarse sand ) 12 mm thick finished with a floating coat of neat cement complete as per standard design.

ASHOK BISWAS