construction of rcc cable trench at purusattampur 33/11 kv sub-station, purba medinipur medinip , earthwork 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 with a lead of 75 mtr as directed . the item includes necessary trimming the sides of trenches leveling dressing and ramming the bottom , bailing out water as required complete . , depth of excavation not exceeding 1500 mm . , filling in foundation or plinth by medium coarse sand in layer not exceeding 150mm . as directed and consolidating the same by through saturation with water ramming complete including the cost of supply of sand . , supplying and laying polythene sheet ( 150gm/ sqm ) over damp proof course or below flooring or roof terracing or in foundation trenches . , 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 . , ordinary cement concrete ( mix-3:1 . 5:1 ) m-20 with graded stone chips ( 20mm down ) excluding shuttering and reinforcement if any in ground floor . , ( with pakur/ chandil variety ) . , reinforcement for reinforced concrete work in all sorts of structures 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 , hire and labour charges for shuttering with centering and necessary staging up to 4mtr . using stout props and thick hard wood planks of 25 to 30mm . thick with required bracing for concrete slabs , beams , columns , lintels , curved or straight including fitting and fixing and striking out after completion of work ( upto roof of ground floor ) , a ) 25mm to 30mm thick shuttering with staging in foundation etc . , b ) 25mm to 30mm thick shuttering without staging in foundation etc . , brick work with 1st class bricks in cement mortar ( 4:1 ) . , in foundation & plinth . , plaster ( to wall , floor , ceiling etc . ) with sand cement mortar including rounding off or chamfering corners as directed and racking out joints or roughening of concrete surface by chipping etc . including throating , nosing and drip course where necessary . excluding cost of chipping over concrete surface . , a ) in ground floor . , i ) 15 mm thick plaster with ( 4:1 ) cement mortar . , neat cement punning average 1 . 5mm . thick in wall , dado , window sills , floor , drain etc . , earth work in filling in foundation trenches or plinth with good earth in layers not exceeding 150mm . including watering and ramming etc . layer by layer complete . with earth obtained from excavation of foundation . , 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 . ) , 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 . , a ) in ground floor including roof . , dismantling all type of plain cement concrete works , stacking serviceable materials at site and removing rubbish as directed within a lead of 75m . , in ground floor including roof . , upto 150mm thick . , 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 . , 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 .