Repair and maintenance work in Delhi Archive Building, 18-A Satsang Vihar Marg, Spl. Institutional Area, New Delhi during 2025-26 (SH Repairing of terrace, tank platform, fire station pump terrace and redevelopment of bore well at Delhi Archive Build

1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

Reinforced cement concrete work in beams, suspended floors, roofs having slope up to 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases above plinth level up to floor five level, excluding the cost of centering, shuttering, finishing and reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).

Centering and shuttering including strutting, propping etc. and removal of form for

Suspended floors, roofs, landings, balconies and access platform

Edges of slabs and breaks in floors and walls

Under 20 cm wide

Thermo-Mechanically Treated bars of grade Fe-500D or more.

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in superstructure above plinth level up to floor V level in all shapes and sizes in :

Cement mortar 1:6 (1 cement : 6 coarse sand)

Structural steel work in single section, fixed with or without connecting plate, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

1:6 (1 cement: 6 coarse sand)

15 mm cement plaster on rough side of single or half brick wall of mix:

1:6 (1 cement: 6 coarse sand)

Finishing walls with Acrylic Smooth exterior paint of required shade :

New work (Two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/10 sqm)

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade :

Two or more coats on new work

Disconnecting damaged overhead/terrace PVC water storage tank of any size from water supply line and removing from the terrace including shifting at ground level as per direction of Engineer-in-charge.

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge.

Nominal concrete 1:3:6 or richer mix (including equivalent design mix)

Demolishing brick work 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.

In cement mortar

Channels, angles, tees and flats

For thickness of tiles 10 mm to 25 mm

Dismantling stone slab flooring laid in cement mortar including stacking of serviceable material and disposal of unserviceable material within 50 metres lead.

Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead.

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.

20 mm nominal dia Pipes

25 mm nominal dia Pipes

25 mm nominal bore

Providing and placing on terrace (at all floor levels) polyethylene water storage tank, IS : 12701 marked, with cover and suitable locking arrangement and making necessary holes for inlet, outlet and overflow pipes but without fittings and the base support for tank.

Providing and applying fibre reinforced elastomeric liquid water proofing membrane with resilient acrylic polymers having Sun Reflectivity Index (SRI) of 105 on top of concrete roof in three coats @10.76 litre/ 10 sqm. One coat of self-priming of elastomeric waterproofing liquid (dilution with water in the ratio of 3:1) and two coats of undiluted elastomeric waterproofing liquid (dry film thickness of complete application/system not less than 500 microns). The operation shall be carried out after scrapping and properly cleaning the surface to remove loose particles with wire brushes, complete in all respect as per the direction of Engineer-in-Charge.

Gravel packing in tubewell construction in accordance with IS: 4097, including providing gravel fine/ medium/ coarse, in required grading & sizes as per actual requirement, all complete as per direction of Engineer- in-charge.

200 mm dia

200 mm clamp

Re-development of existing Bore Well in accordance with IS : 2800 (part I) and IS: 11189, with required capacity air compressor, running the compressor for required time till well is fully developed, i/c, all complete, including hire & labour charges of air compressor, tools & accessories etc., all as per requirement and direction of Engineer-in-charge.

Providing and fixing Engraved SS 304 grade Name plate of size 3x3 feet having thickness of 1 mm, 20 Guage on wall surface with necessary screws, wall plugs etc complete as per direction of Engineer-in-charge.

Credit for Old Steel:- Bars, Z-section, Rolled steel sections, Structural Steel section, G.I. barbed wire, Expended metal/IRC fabric, CI/SCI pipes of various diameter, GI pipes of various diameter, CI pipes of various diameter (Broken in pieces), CI Manhole cover & frames (Broken in pieces) CI, DI, LA etc.etc.

Modified Estimated Cost after using Correction factor on DSR-2023 (Item No.01 to 25.01) on account of GST @ 0.973=(-) 22034/- (816079*0.973=794045) = (816079-794045) = 22034)

Add cost index@3% on DSR-2023 (Item No.01 to 25.01) on account of GST @ 3% = 23,821/- (794045*3%=23821)