Development of Area including Drainage and Pathway at Badu at NSCBI Airport Kolkata

Amount

Preparation and consolidation of sub grade with power road roller of 8 to 12 tonne capacity after excavating earth to an average of 22.5 cm depth, dressing to camber and consolidating with road roller including making good the undulations etc. and re-rolling the sub grade and disposal of surplus earth with lead upto 50 metres.

Drum Sheet Walling 0.60 m (avg.) high above existing ground level of Eucalyptus bullah piling 10 cm dia (avg). and 2.4m long driven 1.8-2m (avg) below G.L. at a vertical spacing of 75cm centre to centre including fitting fixing horizontally with half Eucalyptus bullah pieces (from 10 cm dia) of length 4.5m 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)

Earth work in rough excavation, banking excavated earth in layers not exceeding 20cm 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

Supplying and Stacking at site of Moorum (This item is required for item No. 07)

Supplying and Stacking at site of Sand (This item is required for item No. 07)

Carriage of Earth / Moorum, sand etc. from initial lead of 50 Mtr. To 1 km

Laying of course sand (40% by volume) and morum (60% by volume) in layers of 20cm finished depth, breaking clods/over size material, removal of stumps/ roots and the like & watering, grading/ levelling each layer with dozer/ grader and rolling every layer with vibrator roller/ earth compactor of minimum 8-12 tonnes capacity and dressing to the required grade, camber and slope complete as per specification and as directed by the E-I-C. (payment shall be made for the compacted quantity only) (Below plinth works)

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

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level : 1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size de rived from natural sources)

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

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

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

Applying one coat of water thinnable cement primer of approved brand and manufacture on wall surface : Water thinnable cement primer

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade Two or more coats on new work

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 coarse sand)

Providing and laying polythene sheet of 400 microns on the base course with overlaps of not less than 150mm bothways as per the directions of Engineer-in-charge. (only plan area will be measured for payment).

Providing and fixing Compressible Elastomeric Bituminous Expansion Joint filler Board of Thickness 25 mm as per Direction of Engineering-In-Charge

M/S SARADA CONSTRUCTION

M/s. A S Traders

L K BUILDERS