SPECIAL REPAIRS REPLACEMENT OF VRF/VRV AC PLANT AGAINST BEYOND ECONOMICAL REPAIR AT KAUTILYA DSP BUILDING UNDER GE I RND RCI HYDERABAD

Dismantling aluminium / Gypsum partitions, doors, windows, fixed glazing and false ceiling including disposal of unserviceable material and stacking of serviceable material with in 50 meters lead complete all as specified and directed.

Providing and fixing false ceiling at all height including providing and fixing of frame work made of special sections, power pressed from M.S. sheets and galvanized with zinc coating of 120 gms/sqm (both side inclusive) as per IS : 277 and consisting of angle cleats of size 25mm wide x 1.6mm thick with flanges of 27mm and 37mm, at 1200mm centre to centre, one flange fixed to the ceiling with dash fastener 12.5mm dia x 50mm long with 6mm dia bolts, other flange of cleat fixed to the angle hangers of 25 x 10 x 0.50mm of required length with nuts & bolts of required size and

other end of angle hanger fixed with intermediate G.I. channels 45 x 15 x 0.9mm running at the spacing of 1200mm centre to centre, to which the ceiling section 0.5mm thick bottom wedge of 80mm with tapered flanges of 26mm each having lips of 10.5mm, at 450mm centre to centre, shall be fixed in a direction perpendicular to G.I. intermediate channel with connecting clips made out of 2.64mm dia x 230mm long G.I. wire at every junction, including fixing perimeter channels 0.5mm thick 27mm high having flanges of 20mm and 30mm long, the perimeter of ceiling fixed to wall / partition with

the help of rawl plugs at 450mm centre, with 25mm long dry wall screws @ 230mm interval, including fixing of gypsum board to ceiling section and perimeter channel with the help of dry wall screws of size 3.5 x 25mm at 230mm c/c, including jointing and finishing to a flush finish of tapered and square edges of the board with recommended jointing compound, jointing tapes, finishing with jointing compound in 3 layers covering upto 150mm on both sides of joint and two coats of primer suitable for board, all as per manufacturer’s specification and also including the cost of making openings for light fittings,

grills, diffusers, cutouts made with frame of perimeter channels suitably fixed, all complete as per drawings, specification and direction of the Engineer-in-Charge including cost of painting with : 12.5mm thick tapered edge Glass Reinforced Gypsum (GRG) board conforming to IS: 2095-(Part 3):1996 (Boards with BIS certification marks).

Providing and fixing mineral fibre Silhouette false ceiling tiles at all heights of size 595 x 595mm of approved texture, design and pattern. The tiles should have Humidity esistance (RH) of 99%, Light Reflectance ≥ 85%, Thermal Conductivity k = 0.052 - 0.057 w/m K, Fire Performance as per (BS 476 Part - 6 & 7) in true horizont al level suspended on interlocking T-Grid of hot dipped all round galvanized iron section of 0.33mm thick (galvanized @120 gsm) comprising of main T runners of 15 x 32mm of length 3000mm, cross T of size 15 x 32mm of length 1200mm and secondary intermediate cross T of

size 15 x 32mm of length 600mm to form grid module of size 600 x 600mm suspended from ceiling using galvanized mild steel item (galvanised @ 80gsm) 50mm long 8mm outer diameter M-6 dash fasteners, 6mm diameter fully threaded hanger rod up to 1000mm length and L-shape level adjuster of size 85 x 25 x 2mm, spaced at 1200mm centre to centre along main ‘T’. The system should rest on periphery walls / partitions with the help of GI perimeter wall angle of size 24 x 24 x 3000mm made of 0.40mm thick sheet, to be fixed to the wall with help of plastic rawl plug at 450mm centre to centre & 40mm

long dry wall S.S. screws. The exposed bottom portion of all T-sections used in false ceiling support system shall be pre-painted with polyester baked paint for all heights. The work shall be carried out as per specifications, drawings and as per directions of the Engineer-in-Charge with 16mm thick beveled tegular mineral fibre false ceiling tile (NRC 0.55 to 0.60).

Demolishing brick work manually / by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead complete all as specified and directed.

Brick work with non modular fly ash bricks conforming to IS:12894, class designation 10 average compressive strength in super structure above plinth level up to floor V level in : cement mortar 1:4 (1 cement : 4 coarse sand) complete all as specified and directed.