Construction of Providing steel structure to facilitate two way tarpaulin cover at Khadia project

Item Description/ Heading

CIVIL PART

Earth work in excavation in all kind of soil/ silt by mechanical means (hydraulic excavaror)/ manual means including dozering, trasnportation, unloading at designated place, levelling and dressing of dump sites all inclusive as per instructions of EIC. with all lifts (for all project of NCL)Lead upto 1km

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) : 6 graded stone aggregate 20 mm nominal size).

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 : 1:1.5:3(1cement:1.5coarse sand (zone-III):3 graded stone aggregate 20 mm nominal size).

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. Cold twisted bars

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: Lintels, beams, plinth beams, girders, bressumers and cantilevers

Centering and shuttering including strutting, propping etc. and removal of form for: Columns, Pillars, Piers, Abutments, Posts and Struts

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

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m.

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

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

Construction of granular sub-base by providing well graded material likenatural sand crushed gravel or crushed stone having CBR >30, spreadingin uniform layers with motor grader on prepared surface, mixing by mix inplace method with rotavator or plant mix method at OMC, and compactingwith vibratory rollers of 80 to 100 kN static weight to achieve the desireddensity, complete as per Clause 401 of Specification

Construction of dry lean cement concrete Sub- base over a prepared subgrade with coarse and fineaggregate conforming to IS: 383, the size ofcoarse aggregate not exceeding 25 mm, aggregate cement ratio not toexceed 15:1, aggregate gradation after blending to be as per table 600-1,cement content not to be less than 150 kg/ cum, optimum moisture contentto be determined during trial length construction, concrete strength not tobe less than 10 Mpa at 7 days, mixed in a batching plant, transported tosite, laid with a paver withelectronic sensor, compacting with 8- 10 tonnes vibratory roller, finishing and curing as per clause 601 of specificationcomplete in all respect.

Deduct from Item No.6.1 above if paver with electronic sensor, vibratoryroller are not used and laying, compaction is done by any other method. (The acceptance criteria regarding level, thickness, surface regularity,texture finish, strength of concrete and all other quality control measuresshall be the same as in case of machine laid work.) .

Construction of un-reinforced, dowel jointed, plain cement concretepavement M-30 grade concrete over a prepared sub base with cement ,coarse and fine aggregate conforming to IS 383, maximum size of coarseaggregate not exceeding 25 mm, mixed in a batching and mixing plant asper approved mix design, transported to site, laid with a fixed form or slip form paver, spread, compacted and finished in a continuous operationincluding provisionofcontraction, expansion, construction andlongitudinal joints, joint filler, separation membrane, sealant primer, joint sealant, debonding strip, admixtures as approved, curing compound,finishing to lines and grades as per drawing as per IRC 15 2011 and as perrelevant clauses of section 602 of specifications complete but excludingcost of steel in dowel bar and tie rods etc.

Deduct from Item No.6.3 & 6.4 above if paver with electronic sensor is notused and laying, compaction is done by any other method (The acceptancecriteria regarding level, thickness, surface regularity, texture finish,strength of concrete and all other quality control measures shall be thesame as in case of machine laid

Cost of steel in dowel bar and tie rod incl. craddle laps etc completed required as per design. Tor Steel

Construction of embankment with approved materials CBR>7 deposited atsite from roadway cutting and excavation from drain and foundation of otherstructures graded and compacted to meet requirement of table 300-1,300-2 and as per relevent clauses of section-300.

Total impact of GST for the purpose of CTC

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