Re-surfacing and face lifting of Helipad at Diglipur

Amount

Clearing grass and removal of the rubbish up to a distance of 50 m outside the periphery of the area cleared.

Providing and applying tack coat using hot straight run bitumen ofgrade VG - 10, including heating the bitumen, spraying the bitumenwith mechanically operated spray unit fitted on bitumen boiler,cleaning and preparing the existing road surface as perspecifications :

On bituminous surface @ 0.50 Kg / sqm

2.5 cm premix carpet surfacing with 2.25 cum and 1.12 cum ofstone chippings of 13.2 mm and 11.2 mm size respectively per 100sqm and 52 kg and 56 kg of hot bitumen per cum of stone chippingsof 13.2 mm and 11.2 mm size respectively, including a tack coatwith hot straight run bitumen, including consolidation with road rollerof 6 to 9 tonne capacity etc. complete (tack coat to be paid for separately).

With paving Asphalt grade VG - 30 with no solvent

Providing and laying seal coat over prepared surface of road withbitumen heated in bitumen boiler fitted with the spray set sprayingusing 98 kg of bitumen of grade VG - 10 and blinding surface with0.90 cum of stone aggregate of 6.7 mm size (Passing 11.2 mmsieve and retained on 2.36 mm sieve) per 100 sqm of road surface,including rolling and finishing with power road roller all complete.Note: Seal coat items to be operated only with the prior approval ofchief Engineer concerned.

Painting runway/taxi track/apron marking with adequate nos of coatsto give uniform finish with road marking paint of superior make asapproved by the Engineer-in-charge, i/c cleaning the surface of aildirt, scales, oil, grease and other foreign material etc. and lining out complete.

Old work (One or more coats)

Finishing walls with Acrylic Smooth exterior paint of required shade :

Old work (Two or more coat applied @ 1.67 ltr/ 10 sqm) on existing cement paint surface

Distempering with 1st quality acrylic distemper (ready made) having VOC content less than 50 gm per ltr. of approved manufacturer and of required shade and colour complete. as per manufacturer's specification.

One or more coats on old work

Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge.

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement :

1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natu- ral 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

Columns, Pillars, Piers, Abutments, Posts and Struts

12 mm cement plaster of mix :

1:4 (1 cement: 4 fine sand)

Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq.meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground, all complete as per direction of Engineer-in-Charge.

With cement mortar 1:4 (1 cement : 4 fine sand)

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

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

Two or more coats on new work

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

One or more coats on old work

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. External work

25 mm dia nominal bore

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) :

25 mm nominal bore

Providing and fixing G.I. Union in G.I. pipe including cutting and threading the pipe and making long screws etc. complete (New work) :

25 mm nominal bore

Renewing glass panes, with putty and nails wherever necessary including racking out the old putty:

Float glass panes of nominal thickness 4 mm (weight not less than 10kg/sqm)

Providing and fixing in position eaves or facia board with:

18mm thick 30cm wide UPVC solid board i/c fixing with nuts & bolts ect. all complete as per the direction of E-In-C

SHRI. UTTAM KUMAR SAHA