Panchayat Raj Engineering Department Tender

Works;Providing & Fixing of Armstrong Mineral Fibre Acoustical Suspended Ceiling System with 16mm thick Bioguard plain Bevelled Tegular Edge Tiles with Armstrong Superfine 15mm face exposed grid. The tiles shall have smooth bright visual with Humidity Resistance (RH) of 99%, NRC 0.15 (Average value of Absorption Co-efficient readings taken at 250 Hz, 500 Hz, 1000 Hz and 2000 Hz) as per ASTM C423 standard, CAC of 35db as per ASTM E1414, Light Reflectance =89% as per ASTM E-1477, Thermal Conductivity k = 0.052 - 0.057 W/mK, Colour Global White, Fire Performance of Class 0/1 as per BS 476 Part6/7 and Class A as per ASTM E 84 with 16mm bevelled tegular edge and 8mm drop in module size of 600 x 600mm. The scrim on the face of the tile shall be cleanable, washable up to 150 cycles as per ASTM D-4828 and resistant to disinfectants. The tile shall be treated with Anti- Microbial coating on the face and wax coating on the back to resist permeability. Tiles to be tested for antimicrobial activity having ?total inhibition? as per TNO Seed Layer test & ?inhibition? as per Kirby Bauer agar diffusion test (excluding Pseudomonas Aeruginosa) and efficacy greater than 2 as per JIS-Z 2801-2010.It shall be suitable for Green Building application, with Recycled content of 37%. The tile shall have certifications from GRIHA and GreenPro thereby confirming that it is an environment friendly product. SUSPENSION: The tile shall be laid on Armstrong Superfine 32 with 15 mm wide T - section flanges colour global white (matching to tile colour) having roll formed double stroke rotary stitching on all T sections i.e., the Main Runner, 1200 mm & 600 mm Cross Tees with a web height of 32mm (all sections). The deflection loading of the system shall be 10.5 kg/m2 (as per standard installation layout mentioned below) and main beam tested as per ASTM C635 (Deflection limit less than L/360) with a deflection loading of 8.8 kg/m. The end details of the cross tee shall be made of pre hardened steel and fixed to the ends of the cross tee to provide double locking between ?cross tee to cross tee? and ?cross tee to main beam?. All main beam to main beam and cross tee to cross tee connection shall have a pull-out strength of more than 100kg. The T Sections shall be made of hot dipped galvanized steel of 90 gsm as per IS 277 (2003) and prepainted steel with baked polyester paint with 0T ending capability. All border cross tee/main beam shall be levelled using perimeter fill. The Tile & Grid system used together shall carry a 30-year warranty against manufacturing defect and manufacturer shall provide a warranty certificate. The Tile & Grid shall have the manufacturers name embossed/printed on it. The supply shall be backed by a Manufacturing Test Certificate. INSTALLATION: To comprise main runner spaced at 1200mm securely fixed to the structural soffit using Armstrong suspension system (specifications above) at 1200mm maximum. The First/Last Armstrong suspension system at the end of each main runner shall not be greater than 450mm from the adjacent wall along with the first and the last main beam shall be at less than 600mm from the wall. Flush fitting 1200mm long cross tees to be interlocked between main runners at 600mm to form 1200 x 600 mm module. Cut cross tees longer than 600mm require independent support. 600 x 600mm module to be formed by fitting 600mm long flush fitting cross tees centrally between the 1200 mm cross tees. Perimeter trim to be Armstrong wall angles of size 3000x19x19mm, secured to walls using screws at 450mm centre to centre maximum. Installation shall be carried out as per Armstrong recommended procedure. SUSPENSION SYSTEM accessories consisting of M6 Anchor Fasteners with hanger hole, prestraightened hanger wire of dia ? 2.5 mm of 1.80 m length having a tensile strength of 344-413 Mpa and a minimum loading strength of 110 kgs.

Works;Providing and fixing in position wall panelling to all heights with eco-friendly light weight calcium silicate panels/tiles globe design of size 595x595mm having square/butt edge having NRC i.e. Noise reduction coefficient of 0.5 to 0.75 as per IS 8225:1987, Light reflectance of 85% minimum, Non-combustible as per BS 476 part 4, fire performance as per BS 476 part 6&7, humidity resistance of 100% and thermal conductivity < 0.043 W/m K as per ASTM 518: 1991 comprising of a frame made from especially fabricated galvanized mild steel sheet 0.50mm thick pressed section galvanizing @ 120 grams per sqm including both sides i.e. vertical studs of size 48x34x36mma re placed at 600mm centre to centre in a floor and ceiling channel section of size 50x32mm fixed to the floor and soffit at 600mm centres using 12mm dia, 50mm long wedge type expanded zinc alloy dash fastener with 10mm bolt. Glass wool of 50mm thickness is then to be inserted in the slots and finally calcium silicate non-combustible panels/tiles are to be screw fixed with self-tapping pan head nickel coated mild steel screws of size 13x3.2mm on to this grid leaving an even groove of 1mm between the panels. The joints between the panels are to be duly jointed and finished using recommended jointing calcium silicate-based compound and fibre joint tape roll 50mm wide and two coats of primer suitable for panelling as per manufacturers specification as per direction of Engineer-in-Charge with 15mm thick integral densified fully perforated light weight calcium silicate panels/tiles

Works;Supply and Fixing of 20mm dia 1.5mm thick surface P.V.C. pipe (ISI MARK) with all accessories fixing on chromium plated metallic base saddles and decolam board for switches for Light, Fan and separate plug point including all labour charges etc., complete.