Development of Civil airport at Bokaro. SH Construction of Perimeter Road at Bokaro

Amount

Earth work in rough excavation, banking excavated earth in layers not exceeding 20 cm in depth, breaking clods, watering, rolling each layer with ½ tonne roller or wooden or steel rammers, and rolling every 3rd and top-most layer with power roller of minimum 8 tonnes and dressing up in embankments for roads, flood banks, marginal banks and guide banks or filling up ground depressions, lead upto 50 m and lift upto 1.5 m :

Surface dressing of the ground including removing vegetation and in-equalities not exceeding 15 cm deep and disposal of rubbish, lead upto 50 m and lift upto 1.5 m. All kinds of soil.

Earth work in excavation by mechanical means (Hydraulic excavator)/ manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-incharge. All kinds of soil

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level: 1:4:8 (1 Cement : 4 coarse sand( zone-III) : 8 graded stone aggregate 40 mm nominal size).

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : (1cement : 3coarse sand : 6 graded stone aggregate 20 mm nominal size). All work up to plinth level:

Reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete. Thermo-Mechanically Treated bars of grade Fe-500D or more

Providing and laying in position machine batched and machine mixed design mix M-25 grade cement concrete for reinforced cement concrete work, using cement content as per approved design mix, including pumping of concrete to site of laying but excluding the cost of centering,shuttering, finishing and reinforcement, including admixtures in recommended proportions as per IS: 9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability as per direction of Engineer-in-charge.“(Note :- Cement content considered in this item is @ 330 kg/cum.“Excess/ less cement used as per design mix is payable/recoverable separately) All work up to plinth level.

Centering and shuttering including strutting, propping etc. and removal of form for : Foundations, footings, bases of columns, etc. for mass concrete.

Centering and shuttering including strutting, propping etc. and removal of form for : Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc.

Centering and shuttering including strutting, propping etc. and removal of form for : Suspended floors, roofs, landings, balconies and access platform.

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in: Cement mortar 1:6(1 cement : 6 course sand ).

12 mm cement plaster of mix : 1:6 (1 cement: 6 fine sand).

15 mm cement plaster of mix : 1:6 (1 cement: 6 fine sand).

Dismantling manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge : bituminous road

Extra for compaction of earth work in embankment under optimum moisture conditions to give at least 95% of the maximum dry density (proctor density).

Providing and applying tack coat using hot straight run bitumen of grade VG-10, including heating the bitumen, spraying the bitumen with mechanically operated spray unit fitted on bitumen boiler, cleaning and preparing the existing road surface as per specifications: on W.B.M. @ 0.75 Kg/sqm

Providing and applying tack coat using hot straight run bitumen of grade VG-10, including heating the bitumen, spraying the bitumen with mechanically operated spray unit fitted on bitumen boiler, cleaning and preparing the existing road surface as per specifications: on bituminous surface @ 0.50 Kg/sqm

Painting road surface marking with adequate nos of coats to give uniform finish with ready mixed road marking paint conforming to IS : 164, on bituminous surface in white/yellow shade, including cleaning the surface of all dirt, scales, oil, grease and foreign material etc. complete. New work (Two or more coats).

Providing and laying Dense Graded Bituminous Macadam using crushed stone aggregates of specified grading, premixed with bituminous binder and filler, transporting the hot mix to work site by tippers,laying with paver finisher equiped with electronic sensor to the required grade, level and alignment and rolling with smooth wheeled, vibratory and tandem rollers as per specifications to achieve the desired compaction and density, complete as per specificatons and directions of Engineer-in-Charge. 50 to 100 mm average compacted thickness with bitumen of grade VG-30 @ 5% (percentage by weight of total mix) and lime filler @ 2% (percentage by weight of Aggregate) prepared in Batch Type Hot Mix Plant of 100-120 TPH Capacity.

Construction of granular sub-base by providing close graded Material conforming to specifications, mixing in a mechanical mix plant at OMC, carriage of mixed material by tippers to work site, for all leads & lifts, spreading in uniform layers of specified thickness with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per specifications and directions of Engineer-in-Charge.With material conforming to Grade-II (size range 53 mm to 0.075 mm ) having CBR Value-25.

Providing, laying, spreading and compacting graded stone aggregate (size range 53 mm to 0.075 mm ) to wet mix macadam (WMM) specification including premixing the material with water at OMC in mechanical mix plant, carriage of mixed material by tipper to site, for all leads & lifts, laying in uniform layers with mechanical paver finisher in sub- base / base course on well prepared surface and compacting with vibratory roller of 8 to 10 tonne capacity to achieve the desired density, complete as per specifications and directions of Engineer-in-Charge.

Providing and laying non-pressure NP2 class (light duty) R.C.C. pipes with collars jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 fine sand) including testing of joints etc. complete : 300 mm dia. R.C.C. pipe

Constructing brick masonry manhole in cement mortar 1:4 ( 1 cement : 4 coarse sand ) with R.C.C. top slab with 1:2:4 mix (1 cement : 2coarse sand : 4 graded stone aggregate 20 mm nominal size), foundation concrete 1:4:8 mix (1 cement : 4 coarse sand : 8 graded stone aggregate 40 mm nominal size), inside plastering 12 mm thick with cement mortar 1:3 (1 cement : 3 coarse sand) finished with floating coat of neat cement and making channels in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) finished with a floating coat of neat cement complete as per standard design : Inside size 90x80 cm and 45 cm deep including C.I. cover with frame (light duty) 455x610 mm internal dimensions, total weight of cover and frame to be not less than 38 kg (weight of cover 23 kg and weight of frame 15 kg) : With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Providing and laying of Hot Mix Semi Dense Asphaltic Concrete(SDAC) using crushed stone aggregate of quality, size and grading as specified and cement as filler of quality as specified and Viscosity Grade VG-30 Bitumen (supplied in bulk) in proportions as per job mix formula and laid to specified levels,grade and camber as per specification, drawings and as directed by the Engineer-in-Charge including compacting with 8-10 tonne, preferably vibratory road roller of adequate capacity to achieve the specified values of compaction, strength, surface accuracy complete.[for tendering purpose VG bitumen of grade VG-30 content shall be taken as 120 kg/m3 of mix supplied in bulk produced by Govt. Refineries and 2% cement by weight of aggregates as filler material].

Supplying and filling Good Earth in layers of 20 cm finished depth, breaking clods/over size material, removal of slumps/roots and the like & watering, grading/levelling each layer with dozers/grader and rolling every layer with vibratory roller/each compactor of minimum 8-12 tonnes capacity and dressing to the required grade,camber and slope complete as per specification as directed by Engineer-in -Charge. ( The item includes cost of work, payment of necessary royality,carriage of good earth upto work site for all lead and lifts involved. The work to be carried out as per MORTH specification. Payment to be made for compacted quantity only).

Carrying out soil investigation for Perimeter Road and Runway Strip(As per AAI TI No 58 dt 26.02.2021) for Grain size distribution/Particle size analysis, Atterberg's limit, Proctor test for MDDand OMC, Soaked CBR and unsoaked CBR) as per relevant IS Code for samples collected In-Situ at from desired depth as per direction and satifaction of Engineer-In-Charge.

Uprooting of roots of existing felled trees from beneath the ground by mechanical means and stacking of uprooted material in area designated within 2 km of Airport Boundary ,complete as direction and satisfaction of Engineer -in -Charge

Drum Sheet Walling 0.5 m (avg.) high above existing ground level of Eucalyptus bullah piling 4 inch dia (avg). and 10 feet long driven 2.0m-2.5m (avg) below G.L. at a vertical spacing of 75 cm centre to centre double layer including fitting fixing horizontally with half Eucalyptus bullah pieces (from 10 cm dia) of length 10 feet placed at 45cm centre to centre and drum(empty bitumen) sheet (approved condition) of requiered height, cutting and straightening drum sheet (each joint must have lap length of min.50mm) including cost of necessary nails, bolts, nuts (12mm dia) etc. to be provided at each joint of vertical and horizontal bullah including cost of all materials and one coat of coal tarring to all bullah etc. complete as per direction. (Only exposed surface area above ground shall be considered for payment)

Drum Sheet Walling 1.0 m (avg.) high above existing ground level of Eucalyptus bullah piling 4 inch dia (avg). and 12 feet long driven 2.0m-2.5m (avg) below G.L. at a vertical spacing of 80 cm centre to centre double layer including fitting fixing horizontally with half Eucalyptus bullah pieces (from 10 cm dia) of length 12 feet placed at 50cm centre to centre and drum(empty bitumen) sheet (approved condition) of requiered height, cutting and straightening drum sheet (each joint must have lap length of min.50mm) including cost of necessary nails, bolts, nuts (12mm dia) etc. to be provided at each joint of vertical and horizontal bullah including cost of all materials and one coat of coal tarring to all bullah etc. complete as per direction. (Only exposed surface area above ground shall be considered for payment)

Engaging Technical Engineer (Civil Engg. Degree with minimum two years experience in similar nature of works ) to do day to day supervisior of civil maintenance / project works at site, quality control at site and plant, measurements, leveling, billing and any other works as assigned. from the time as per the direction of E-I-C.

Suitable commercial Passenger vehicle (AC) on daily basis with cylinder capacity of minimum 1400 CC (Tavera / Scorpio /Tata Sumo / Bolero) not more than three years old either petrol or diesel driven including driver with mobile facilities for taking the samples from work / plant site to laboratory and movement of the officials during progress of work for checking / controlling the quality of work. The Engineer-In-Charge will be controlling officer for movement of vehicles (limiting to 1500 kms per month with minimum 10 hrs daily use)

East India Construction Company

R K MISHRA AND COMPANY

LAXMI ENTERPRISES

M/S S.K.ENTERPRISES