construction of suction pit and recovery pump chamber adjacent to sulphuric acid storage basin at stps . , surface dressing of the ground in any kind of soil including removing vegetation inequalities not exceeding 15 cm depth and disposal of the rubbish within a lead upto 75 m as directed . , 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 75 m . as directed . the item includes necessary trimming the sides of trenches , levelling , dressing and ramming the bottom , bailing out water as required complete . depth of excavation not exceeding 1 , 500 mm . , 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 the basis of measurement of finished quantity of work ) . with earth obtained from excavation of foundation . , filling in foundation or plinth by silver 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 ) . by fine sand . , single brick flat soling of picked jhama bricks including ramming and dressing bed to proper level and filling joints with local sand . , 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 . pakur variety . , hire and labour charges for shuttering with centering and necessary staging upto 4 m using approved stout props and thick hard wood planks of approved thickness with required bracing for concrete slabs , beams and columns , lintels curved or straight including fitting , fixing and striking out after completion of works ( upto roof of ground floor ) . steel shuttering or 9 to 12 mm thick approved quality ply board shuttering in any concrete work . , 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 . for works in foundation and upto roof of ground floor / upto 4 m tor steel / mild steel . sail / tata / rinl , 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 . pakur variety . , dewatering from trenches , pit or from chamber by pumping including carrying of pump to work site . ( the rate is inclusive of fuel , tools and tackels & labour as required for the job ) . , dismantling all types of plain cement concrete works , stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m . in ground floor including roof . upto 150 mm thick . , laying of newly supplied 38 mm thick acid proof tiles in floors , walls with acid proof cement mortar including mastic bed preparation , applying of primer 6 mm thick of potassium silicate mortar as under bed and pointing the joint ( up to 15 mm ) with epoxy mortar including preparing the surface all complete as per direction of eic . , laying of 38 mm thick acid proof tiles in floors , walls and drains with acid proof epoxy mortar including application of primer 6 mm thick of potassium silicate mortar as under bed and pointing the joints ( up to 15mm ) with acid / alkali proof epoxy mortar including preparing the surface all complete as per direction of the eic . with old tiles . this item includes removal of old mortar from acid proof tiles and preparation of the same for re use . , plaster ( to wall , floor , ceiling etc . ) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating , nosing and drip course , scaffolding / staging where necessary ( ground floor ) . [ excluding cost of chipping over concrete surface ] . with 1:6 cement mortar . 20 mm thick plaster . , m . s . structural works in columns , beams etc . with simple rolled structural members ( e . g . joists , angle , channel sections conforming to is: 226 , is: 808 & sp ( 6 ) - 1964 connected to one another with bracket , gussets , cleats as per design , direction of engineer-incharge complete including cutting to requisite shape and length , fabrication with necessary bolting , metal arc welding conforming to is: 816- 1969 & is: 1995 using electrodes of approved make and brand conforming to is:814- 2004 , haulage , hoisting and erection all complete . the rate includes the cost of rolled steel section , consumables such as electrodes , gas and hire charge of all tools and plants and labour required for the work including all incidental chages such as electricity charges , labour insurance charges etc . payment to be made on the basis of calculated weight of structural members only in finished work as per is specified weight . payment for gusset , bracket , cleat , rivets , bolts and nuts may be make by adding the actual weight of such items with the weight of finished structural members or 7% of weight for finished structural members weighing not less than 22 . 5 kg . / m . or 15 % of weight for finished structal members weighing less than 22 . 5 kg . / m . may be increased allow for bracket , cleat , rivet , bolts and nuts etc . and no seperate payment being made for these items , as per direction of engineer in charge . the rates are considered for a height of erection 8m . / 2nd floor level from the ground . add 1 . 5% extra over the rate for each additional floor or 4m . beyond initiial 8m . or part thereof . for structural members of specified sections weighing less than 22 . 5 kg . / m . , priming one coat on steel or other metal surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc . , painting with best quality synthetic enamel paint of approved make and brand including smoothening surface by sand papering etc . including using of approved putty etc . on the surface , if necessary . on steel or other metal surface . with super gloss ( hi-gloss ) . two coats ( with any shade except white ) . , asbestos corrugated ( trafford or similar approved quality ) sheet ( 6 mm thick ) work ( excluding the supporting framework ) fitted and fixed with 9 . 5mm . dia . j or l hook-bolt and nuts , limpet and bitumen washers and putty with 150 mm end lap & one corrugation minimum side lap complete . in roof . ( payment should be made on area of finished work ) , asbestos corrugated ( trafford or similar approved quality ) sheet ( 6 mm thick ) work ( excluding the supporting framework ) fitted and fixed with 9 . 5mm . dia . j or l hook-bolt and nuts , limpet and bitumen washers and putty with 150 mm end lap & one corrugation minimum side lap complete . in wall . ( payment should be made on area of finished work ) , engagement of unskilled workers for miscellaneous works like cleaning and removal of rubbish , scrap and waste materials etc . which are not susceptible to be measured . , asbestos ridging ( with standard lap ) fitted and fixed with necessary hook , bolts , nuts , washers , etc . complete . serrated adjustable type . , brick work with 1st class bricks in cement mortar ( 1:6 ) . in superstructure , ground floor .