construction of drinking water tank at lower rajbari sansad ii- 1 earth work in excavation of foundation trenches or drains in all sorts of soil (including mixed soil but excluding laterite or sandstone) 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 2 labour for laying 150 mm. to 200 mm. boulder soling including rough dressing hand packing and ramming down small pieces in the interstics without rolling but including rolling 3 cost of stone boulder 150 mm size delivered ans stacked at site. 4 plum concrete work with 40 % cement concrete with 30 mm down graded stone metal and 60 % stone boulder of size 150 mm……..etc 5 cement concrete with graded stone bllast (40 mm size excluding shuttering) with n.b variety stone material. 6 ordinary cement concrete (mix 1:1.5:3) with graded stone chips (20mm nominal size) excluding shuttering and reinforcement, if any, in ground floor as per relevant codes. 7 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). 8 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 every intersection, complete as per drawing and direction. 9 plaster ( to wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering conrners as directed and raking out joints or roughening of concrete surface, including throating, nosing and drip course where necessary (ground floor).................etc 10 neat cement punning about 20 mm thick in wall, dado, window sill, floor….......... etc 11 supply of high density poly-ethylene pipe conforming to is - 4984 - 1985 (dia) [pe - 63] b. 12 supplying, fitting and fixingbib cock or stop cock. 13 supplying, fitting and fixingbib cock or stop cock. 14 gst 18% 15 labour welfare cess 1%