Construction of GSE Area at Civil Airport, Jaisalmer.

Amount

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means over areas (exceeding 30cm in depth. 1.5 m in width as well as 10 sqm on plan) including disposal of excavated earth, lead upto 50m and lift upto 1.5m, disposed earth to be levelled and neatly dressed. 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 1:2:4 (1 cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 20 mm nominal size).

Providing, hoisting and fixing above plinth level up to floor five level precast reinforced cement concrete work in string courses, bands, copings, bed plates, anchor blocks, plain window sills and the like, including the cost of required centering, shuttering but, excluding cost of reinforcement, with 1:1.5:3 (1 cement : 1.5 coarse 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 above plinth level. Thermo-Mechanically Treated bars of grade Fe-500 D or more.

Steel work welded in built up sections/ framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required. In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

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

Construction of dry lean cement concrete sub base over a prepared sub-grade with coarse and fine aggregate conforming to IS:383, the size of coarse aggregate not exceeding 25 mm, aggregate cement ratio not to exceed 15:1, aggregate gradation after blending to be as per specifications, cement content not to be less than 150 Kg/cum, optimum moisture content to be determined during trial length construction, concrete strength not to be less than 10 Mpa at 7 days, mixed in a batching plant, transported to site, for all leads & lifts, laid with a mechanical paver, compacting with 8-10 tonne vibratory roller, finishing and curing etc. complete as per direction 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 150 mm dia. R.C.C. pipe

Providing and laying LDPE polyethylene film of 400 microns thickness confirming to IS:2508, over 6 mm thick bed of fine sand on the base course with overlaps of not less than 75 mm longitudinally and 75 mm transversely, complete as per specifications and directions of Engineer-in-charge.

Providing and laying Pavement Quality Concrete having a minimum work test beam flexural strength of 4.1 MPa at 28 days using not less than 350 Kg of ordinary Portland Cement of 43 grade conforming to IS: 8112 per cum of concrete coarse sand and graded stone aggregates of 40 mm nominal size in appropriate proportions as per specified design criteria and job mix formula approved by the Engineer -in-Charge, in airfield pavements laid in panels with necessary dummy/ construction/ expansion joints as per drawings or as directed by the Engineer-In-Charge, mechanically vibrated using Slip form paver/ Fixed form paver/Manual method as per site requirement & technical specification and providing 400 microns thick polythene sheet as antifriction layer over 6 mm thick fine sand layer, curing and providing & filling construction joints and dummy joints with approved polysulphide joint sealing compound (conforming to grade BS: 5212, Part-1,1990) including rounding off edges, priming the concrete surface with approved primer and filling the groove 10 mm x 10 mm deep at top for construction joints and 10mm x 10mm deep at top for dummy joints with approved polysulphide joint sealing compound, the balance depth of dummy joint if any, being filled with expanded polyethylene foam (Armor Board) including providing and applying bond breaker (polythene tape) on Armor board top surface, including preparing the surface and applying masking tape on front edge of joint to prevent accidental spillage of sealant on top surface and to give neat finish to the sealant and removing the masking tape after sealant has been applied and tooled and necessary arrangements for expansion joints etc. complete. Note: Antifiction layer, filler board and polysulphide sealant for expansion joint shall be paid separately.

Providing and laying in position for expansion joint, 25mm thick pre-cut synthetic joint filler board of approved make conforming to IS:1838 (Part-3)-2011, 45 mm from top (to be removed at the time of filling of polysulphide sealant). Complete as per particular specifications and directions of Engineer-in-charge. (Note: Mode of measurement shall be length of joint multiplied by depth of filler board including pre-cut portion).

Providing and filling polysulphide and laying in two parts with gun/ pour grade polyslphide Pidiseal-42 of Pidilite / Techseal NDL 940 of Choksey or equilant including primer suitable for polysulphide in construction joint,dummy joints and expansion joints as per direction of Engineer-in-charge. (a) Expansion Joint of size 25 mm wide and 10 mm deep over with 30 mm dia non-cross-linked Expanded polyethylene armour rod as per manufacturers

Consolidation of sub grade with power road roller of 8 to 12 tonne capacity including making good the undulations etc. and re-rolling the sub grade as per the direction of Engineer In Charge.

Lok Shail Enterprises

S.D.Builder