construction of foundation of vcb, ct, pt, cable end box at gopalpur 33/11 kv sub-station under haldia division.medinipur , earth work in excavation of foundation trenches or drains in all sorts of soil ( including mixed soil but excluding laterie or sandstone ) including removing spreading or stacking the spils within a lead of 75 m . as directed . the item includes necessary trimming the sides of trenches leveling , dressing and ramming the bottom hailing out water as required complete . depth of excavation not exceeding 1500 mm , filling in foundation or plinth by medium coarse sand in layers not exceeding 150 mm . as directed and consolidating the same by thorough saturation with water ramming complete including the cost of supply of sand . ( payment to be made on measurement of finished quantity ) , cement concrete with graded stone ballast ( 40mm size excluding shuttering ) . in gr . floor . pakur veriety . ( 6:3:1 ) proportion . , ordinary cement concrete ( mix 1:2:4 ) with graded stone chips ( 20 mm nominal size ) excluding shuttering and reinforcement , if any , in ground floor . as per relevant is codes . , ( with pakur / chandil variety ) . , ordinary cement concrete ( mix 1:1 . 5:3 ) with graded stone chips ( 20 mm . nominal size ) excluding shuttering and reinforcement if any , in ground floor as per relevant is codes . , brick work with 1st class bricks in cement mortar ( 1:4 ) ( a ) in foundation and plinth , supplying and laying polythene sheet ( 150 gm / sq . m ) over damp proof course or below flooring or roof terracing or in foundation or in foundation trenches . , hire & labour charges for shuttering with centering and necessary staging up to 4 mtr . using approved stout props and thick hard wood planks of approved thickness with required bracing for concrete slabs , beams , columns , lintels curved or straight including fitting & fixing and striking out after completion of work ( up to roof of ground floor ) . 25 mm to 30 mm thick with staging in foundation . , 25 mm to 30 mm thick without staging in foundation . , reinforcement for reinforced concrete work in all sorts of structure including distribution bars , stirrups , binders etc . including supply of rods , initial straightening and removal of loose rust , cutting to requisite length , hooking and bending to correct shape , placing in proper position and binding with 16 gauge black annealed wire at every inter section , complete as per drawing and direction . , for works in foundation , basement and up to roof of ground floor . -tor steel / mild steel . sail / tata , plaster ( to wall , floor , ceiling etc . ) with sand and cement mortar including rounding off or chamfering corners as directed and racking out joints or chipping , roughening of concrete surface including throating , nosing and drip course , scaffolding / staging where necessary . ground floor . [ including cost of chipping over concrete surface ] . with 1:4 cement mortar . 15 mm thick plaster . , neat cement punning about 1 . 5mm . thick in wall dado , window sills , floor , drains etc . ( cement 0 . 152 cum per 100 sqm . ) , earth work in filling in foundation trenches or plinth with good earth , in layers not exceeding 150 mm . including watering and ramming etc . layer by layer complete . ( payment to be made on basis of measurement of finished quantity of work ) . , with earth obtained from excavation of foundation . , dismantling r . c . floor , roof , beams etc . including cutting rods and removing rubbish as directed within a lead of 75 m . including stacking of steel bars . , in ground floor including roof . , dismantling all types of masonry excepting cement concrete plain of reinforced , stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m . , in ground floor including roof . , removal of rubbish , earth etc . from the working site and disposal of the same beyond the compound , in conformity with the municipal / corporation rules for such disposal , loading into truck and cleaning the site in all respect as per direction of engineer-in-charge . , g . i . works in brackets made from flats , angles , tees etc . to sizes specially bent , twisted , forged , making holes drilled and fitted to rafter to trusses with necessary bolts , nuts , washers , or screws etc . ( length of straight not less than 230 mm . )