Special Repair to 07 Nos S and T and OMC Stores Buildings of No 1 MGAR North at Dimapur Nagaland

SCHEDULE 'A' PART 1 Repairs to stores. Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge of Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix).

Supply and laying 25 mm thick Kota stone slab flooring over 20 mm (average) thick base laid over and jointed with grey cement slurry mixed with pigment to match the shade of the slab, including rubbing and polishing complete with base of cement mortar 1 : 4 (1 cement : 4 coarse sand).

Finishing walls with Acrylic Smooth exterior paint of required shade on Old work (Two or more coat applied @ 1.67 ltr/ 10 sqm) on existing cement paint surface.

Distempering on old ( one coat or more coats) with 1st quality acrylic distemper, having VOC (Volatile Organic Compound ) content less than 50 grams/ litre, of approved brand and manufacture, including applying additional coats wherever required, to achieve even shade and colour.

Repair to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sqm and under incl cutting the patch in proper shape, racking out joints and plastering the surface of the walls, including disposal of rubbish to the dumping ground within 50m lead etc. complete with CM 1:4( 1 cement : 4 coarse sand).

Providing and applying white cement based putty of average thickness 1 mm of approved brand and manufacturer, over the plastered wall surface to prepare the surface even and smooth complete.

Providing and Painting one or more coats on old work with synthetic enamel paint of approved brand and manufacture to give an even shade.

Dismantling roofing including ridges, hips, valleys and gutters etc., and stacking the material within 50 metres lead of G.S. Sheet.

Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm (+ 0.05 %) total coated thickness with zinc coating 120 grams per sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineer in-charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55 mm) with EPDM seal, complete upto any pitch in horizontal/ vertical or curved surfaces, excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

Providing and fixing precoated galvanised steel sheet roofing accessories 0.50 mm (+0.05 %) total coated thickness, Zinc coating 120 grams per sqm as per IS: 277, in 240 mpa steel grade, 5-7microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns using self drilling/ self tapping screws complete of Ridges plain (500 - 600mm).