Replacement of False ceiling at 2nd floor of NITB at Goa Airport

Amount

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 as directed by Engineer-incharge.

Torsion Spring, Aluminium, Perforated, Powder Coated tile Ceiling System: Supply and Installation of torsion spring Tile Ceiling System at all heights manufactured by comprising of Tile of 600mm wide and length 600mm manufactured out of 0.7 mm thick aluminium (AA3105) with 1.5mm dia. perforations with 20% open area and pasted with NWT, NRC-0.7. The metal ceiling panels shall be downward accessible with a minimum of four (4) s.s. torsion springs per panel of dia 2.3mm. The Tile will be manufactured on advanced CAD/CAM equipment that includes several levelling stages in the manufacturing process. Torsion Spring panel with two side legs die formed and two end legs die formed and punched to receive torsion springs (min two springs each end or side) for secure engagement into Tee Grid main runners which are factory punched to receive torsion springs. Tiles will be square edged. The Tile shall be Polyester powder coated in desired shade as approved by E-I-C . The panel will be installed on a rigid framework suspended from existing MS structure in desired profile with suitable grid/supporting system/frame work of special sections, power pressed from MS sheet and galvanised with zinc coating of 120gsm/sqm(both side inclusive) as per IS:277 & as per mentioned in Technical Data Sheet. The rates are inclusive of torsion ceiling system with all accessories, any hanging/supporting/framework system i.e. slotted angle required to install on existing steel structure to match with spacing, required cutting/making, opening for services like diffusers, grills, light fittings, fixtures, smoke detectors & scaffolding etc. Main Runners: Size 24x38 mm, inverted main “Tee” runner sections, 3600mm long, made from 0.30mm thick (minimum sheet), coil coated, white colour or requird shade with factory punched flanges to receive torsion spring assembly & G.I. Tee grid holding bracket of width 15mm & 60mm long. Main Tee on center spacing to match panel length & required spacing, suspended from existing steel structure using Galvananized Iron ,zinc white plated, fully threaded rod of size 6mm (Dia) x 1200 mm (Length) with Galvananized Iron ,zinc white plated GI M6 Nut of size 6mm (Dia) x 4.5mm (Height) and GI M6 Plain wahsher (Dia=6mm, thickness=1.20mm) Cross Runners: Size 24x32mm, inverted cross “Tee” sections, 600mm long, made from 0.30mm thick (minimum sheet), coil coated, white colour or required shade designed to interlock in to web of main tee section on designated spacing. Cross tee length to be match with panel length. Cross tees are spaced spacing 600mm on center to center. Wall Angle: Size 23x23x0.3mm coil coated, white colour or required shade Paint finish –The panels will be pre-treated with eco-friendly silane-based latest nano technology powder coating process and electrostatically powder coated minimum 60 micron with automatic Carona system and cured in combination with infrared & hot air circulated oven in a certified plant. Manufacturer should have in house testing lab & powder coating line with Nano Technology & Catalystic Converter. Acoustic Felt: Non-woven felt made of glass-reinforced fibre glued over the perforation for sound absoruption NRC-0.7

Torsion Spring, Aluminium, Perforated, Wood Finish tile Ceiling System: Supply and Installation of torsion spring Tile Ceiling System at all heights manufactured by comprising of Tile of 600mm wide and length 600mm manufactured out of 0.7 mm thick aluminium (AA3105) with 1.5mm dia. perforations with 20% open area and pasted with NWT, NRC-0.7. The metal ceiling panels shall be downward accessible with a minimum of four (4) s.s. torsion springs per panel of dia 2.3mm. The Tile will be manufactured on advanced CAD/CAM equipment that includes several levelling stages in the manufacturing process. Torsion Spring panel with two side legs die formed and two end legs die formed and punched to receive torsion springs (min two springs each end or side) for secure engagement into Tee Grid main runners which are factory punched to receive torsion springs. Tiles will be square edged. The Tile shall be Polyester powder coated in desired shade as approved by E-I-C . The panel will be installed on a rigid framework suspended from existing MS structure in desired profile with suitable grid/supporting system/frame work of special sections, power pressed from MS sheet and galvanised with zinc coating of 120gsm/sqm(both side inclusive) as per IS:277 & as per mentioned in Technical Data Sheet. The rates are inclusive of torsion ceiling system with all accessories, any hanging/supporting/framework system i.e. slotted angle required to install on existing steel structure to match with spacing, required cutting/making, opening for services like diffusers, grills, light fittings, fixtures, smoke detectors & scaffolding etc. Main Runners: Size 24x38 mm, inverted main “Tee” runner sections, 3600mm long, made from 0.30mm thick (minimum sheet), coil coated, white colour or requird shade with factory punched flanges to receive torsion spring assembly & G.I. Tee grid holding bracket of width 15mm & 60mm long. Main Tee on center spacing to match panel length & required spacing, suspended from existing steel structure using Galvananized Iron ,zinc white plated, fully threaded rod of size 6mm (Dia) x 1200 mm (Length) with Galvananized Iron ,zinc white plated GI M6 Nut of size 6mm (Dia) x 4.5mm (Height) and GI M6 Plain wahsher (Dia=6mm, thickness=1.20mm) Cross Runners: Size 24x32mm, inverted cross “Tee” sections, 600mm long, made from 0.30mm thick (minimum sheet), coil coated, white colour or required shade designed to interlock in to web of main tee section on designated spacing. Cross tee length to be match with panel length. Cross tees are spaced spacing 600mm on center to center. Wall Angle: Size 23x23x0.3mm coil coated, white colour or required shade Paint finish –The panels will be pre-treated with eco-friendly silane-based latest nano technology powder coating process and electrostatically powder coated minimum 60 micron with automatic Carona system and cured in combination with infrared & hot air circulated oven in a certified plant. Manufacturer should have in house testing lab & powder coating line with Nano Technology & Catalystic Converter. Acoustic Felt: Non-woven felt made of glass-reinforced fibre glued over the perforation for sound absoruption NRC-0.7

Qudroclad Skylight wall Cladding: Providing and fixing Honeycomb panels of 12mm thickness with honeycomb consisting of two skins of flat smooth Aluminum alloy AA3105, with an outer skin thickness of 0.7 mm and inner skin thickness of 0.5mm. The Panels should be Tested for Seismic Zone III compliance as per IS 1893 part 1-2016. Panel shall be factory manufactured to the required width subject to a maximum width of 900mm and to the required lengths subject to maximum of 2500 mm and shall essentially have each 12mm thick panel with panel edges on all four sides closed. The panels shall be cranked from factory to accommodate the bends required at site. Qudroclad panel fixed with torsion spring bracket to engage with factory punched 1.2mm black Powder coated slotted mullion profile G.I with the slots which engages Qudroclad panels by torsion spring by taking support from existing substructure with customized L bracket. The Qudroclad panels shall be roll formed and high pressure pressed in controlled factory conditions with two-part high temperature cured PU glue and with two consisting of aluminum skins and using a pre-treated corrosion resistant core of honeycomb Aluminium having a core diameter of 19mm and foil thickness of 0.076 mm. The 12mm thick panel will be finished on the exterior/ exposed surface with coil coated finish, and on the inner surface with primer coating. The 12mm thick panels shall be secured to the aluminum support/ sub structure erected along the panel lengths vertically consisting of torsion spring slotted mullion profile of 1.2mm thick GI powder coated in black finish and erected within the tolerances of +/ - span/1000 of plumb line and level with a non-cumulative tolerance of a maximum of 2mm Aluminium alloy for substructure will comply with ISO 6063. The slotted mullion profile will be fixed to the existing substructure by means of 50X80X50X2 mm angular galvanized brackets which shall be welded to existing substructure. The brackets will allow for a vertical and horizontal alignment tolerance of +/- 12,5mm. The panels shall be secured to the above support allowing for expansion by means of a fixing side extrusion pop riveted to the outer and inner. The panel shall not be fixed in the width direction and shall allow for expansion. ASTM E 84 Standard test method for surface burning characteristics of building materials. BS 476-Part 6 Fire tests on building materials and structures. Method of test for fire propagation. BS 476- Part 7 Fire tests on building materials and structures. Method of test to determine the classification of the surface spread of flame of products.BS 476 (Part6 and Part7) (To meet the class 0 national building regulation) EN 13501-1 reaction to fire classification procedure along with NFPA 285 real time test. Paint finishes - Aluminium panels shall be precoated traffic white panels achromatized for maximum bond between metal and paint, enamelled twice under high temperature one side with full primer finish, the other side (Inner side) with a primer coat and skin coat on a Continuous paint line. The coils to go through 3 stages of pre-treatment, two times oven baked through conversion coating, priming and finish coat ensuring superior adhesion, high corrosion resistance and good colour stability. The coils to be painted on both sides after degreasing. Inside surface to have a primer of 5 microns and a coat of natural colour of 5 microns, exposed surface to have a primer of 5 microns, binder of 5 microns and topcoat of approved colour of 15 microns.

Providing & fixing 6mm thick multi coloured/vibrant coloured Microbial resistant, NSF 51 certified, boiling water resistant, heat resistant, impact resistant, stain & scratch resistant, green guard certified Acrylic solid surface of approved make (Dupont/LG-Himacs/Hanex/Samsung Staron/Neonnex) having minimum density of 1.65 g/cm³, fixed as a cladding over 12mm BWP plywood fixed on a U-shaped frame work of 25mm x 50mm x 2.5 mm MS tube. The frame work shall be welded to the existing Portal frame to hold and take up the entire load of the frame work including 12mm plywood and 6mm Acrylic solid surface. The cladding shall be in same profile of that of the portal frame as per the design requirement and the cost shall include scaffolding for an average working height of 8m from the finished floor level with all required accessories, steel frame work, adhesive, polishing & buffing with complete finishing work as per specifications, colour, shape and size as per approved drawing/design direction and to the satisfaction of Engineer-in-Charge.

Removing from site and taking away quantity of dismantled metal False ceiling material (metal false ceiling tile and associated supporting structure of metal false ceiling system from the BOQ Qtty in Item No. 1) including clearing off site all complete as per the direction and satisfaction of the Engineer-in-charge. (Agency must quote above the reserve price of Rs.25.34/- per kg and price quoted below the reserve price shall disqualify the bidder and no any claims shall be entertained in this regards).

K N RAI (BID ID -893601)

SANWARIYA CONSTRUCTION GLOBAL PRIVATE LIMITED (BID ID -896238)

PRASHANT VIJAYWARGI (BID ID -889365)