Supplying, Installation and Making Over of Overhead Water Storage Tanks for Spring Water Supply at Different Schools under Gorubathan Block, Kalimpong District

Earth work in excavation of foundation trenches or drains in all sorts of soil (including mixed soil but excluding laterite or sand stone) including removing, spreading or stacking the spoils within a lead of 75m. as directed. The item includes necessary trimming the sides of trenches, levelling, dressing and ramming the bottom, bailing out water as required complete. (a) Depth of excavation not exceeding 1.500 mm.

Plum Concrete work with 40 % Cement Concrete with 30 mm down graded stone metal and 60% stone boulder of size 150 mm and above, placed in position as directed excluding shuttering if any. (i) (1:3:6) proportion.

Controlled Cement concrete with well graded stone chips (20 mm nominal size ) excluding shuttering and reinforcement with complete design of concrete as per ISI-456 and relevant special publications submission of job mix formula after preliminary mix design after testing of concrete cubes as per direction of Engineer-in-charge. Consumption of cement will not be less then 300kg of cement with Super plasticiser per cubic meter of controlled concrete but actual consumption will be determined on the basic of preliminary test & job mix formula In Ground floor & foundation.[using concrete mixture]M 20 Grade. (ii) N.B. Veriety (stone metal).

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 inter-section, complete as per drawing and direction. (a) For works in foundation, basement and up to roof of ground floor/up to 4m. Tor steel/Mild steel. other than SAIL/TATA/RINL/JSW/JSPL/Shyam/SRMB/ISSL/BMASL/Electrosteel

Hire and labour charge for shuttering with centreing and necessary staging up to 4 m. using approved stout props and thick hard wood planks of approved thick ness with required bracing for concrete slabs, beams, columns, lintels curved or staight including fitting fixing and striking out after complection of works. (up to roof of ground floor). (a) 25 mm. to 30 mm. thick wooden shuttering as per decision & direction of the Engineer-in-charge.

Supplying, fitting and fixing G.I. pipes of TATA make with all necessary accessories, specials viz. socket, bend, tee, union, cross, elbo, nipple, longscrew, reducing socket, reducing tee, short piece etc. fitted with holder bats clamps, including cutting pipes, making threads, fitting, fixing etc.complete in all respect including cost of necessary fitting as required, jointing materials and two coats of painting with approved paint in any position above ground.( Payment will be made on the center line measurements of total pipe line including all specials. No seperate payment will be made for accesorie, specials.). For exposed work. 20 mm dia.medium quality.

Supply of High Density Poly-ethylene Pipe conforming to IS-4984-1985 (Dia)[PE-63]. 10 Kg/Sq/Cm.(Dia) Working Presssure). 25 mm.

Supplying PVC water storage tank of approved quality with closed top weith lid (Black) - Multilayer. 1000 litre capacity.

Supplying, fitting and fixing bib cock or stop cock. Polythene Bib Cock/ Stop Cock (HD) with metal inlet(EMCO/ ATLAS or equivalent). 15 mm.

GST @ 18%