8377 ADDITION ALTERATION OF GPU ROOM AT 2ND FLOOR DMC BLDG AT NAVAL DOCKYARD MUMBAI UNDER AGE BR-I KUNJALI, GE (NW) KUNJALI

Providing and laying Autoclaved Aerated concrete(AAC) blocks masonry 100 mm/ 125 mm thick with Grade-1 AAC blocks of density 551 to 650 kg/cum conforming to IS:2185 (Part 3) in super structure above plinth level up to floor V level in cement mortar 1:4 (1 cement : 4 coarse sand ). The rate includes providing and placing in position 2 Nos 6 mm dia M.S. bars at every third course of masonry work.

Providing and fixing fire resistant door frame of section 143 x 57 mm having built in rebate made out of 16 SWG G.I. sheet (zinc coating not less than 120 gm/sqm) duly filled with vermuculite based concrete mix, suitable for mounting 60 minutes fire rated door shutters. The frame is fitted with intumuscent fire seal strip of size 10x4 mm (minimum) alround the frame and fixing with dash fastener of approved size and make, including applying a coat of approved brand fire resistant primer etc. complete as per direction of Engineer-in-charge (Dash fastener to be paid for separately).

Providing and fixing 50 mm thick glazed fire resistant door shutters of 60 minutes fire rating conforming to IS:3614 (Part-II), tested and certified as per laboratory approved by Engineer-in-charge, with suitable mounting on door frame, consisting of vertical styles, lock rail, top rail 100 mm wide, bottom rail 200 mm wide, made out of 16 SWG G.I.sheet (zinc coating not less than 120 gm/sqm) duly filled FR insulation material and fixing with necessary stainless steel ball bearing hinges of approved make, including applying a coat of approved fire resistant primer etc. all complete as per direction of Engineer-in-charge (panneling to be paid for separately).

Providing and fixing glazing in fire resistant door shutters, fixed panels & partitions etc., with G.I. beading made out of 1.6 mm thick G.I. sheet (zinc coating not less than 120 gm/sqm) of size 20 x 33 mm screwed with M4 x 38 mm SS screws at distance 75 mm from the edges and 150 mm c/c , including applying a coat of approved fire resistant primer/powder coating of not less than 30 micron on G.I. beading, & special ceramic tape of 5 x 20 mm size etc complete in all respect as per NBC 2016, IS 16231 (Part 3):2016 and as per direction of Engineer-in-charge with glass of required thickness having 60 minutes of fire resistance both integrity & radiation control (EW60) and minimum 20 minutes of insulation (EI20). The manufacturer have to give test report/certification of fire glass and the glass should have the stamp showing the value of E, EW & EI. The glass shall be tested in approved NABL accredited lab or by any other accreditation body which operates in accordance with ISO/IEC 17011 and accredits labs as per ISO/IEC 17025 for testing and calibration scopes shall be eligible. The maximum glazing size shall not be more than 1100x2200 mm (w x h) or 2.42 sqm.

Providing and fixing panic bar / latch (Double point) fitted with a single body, Trim Latch & Lock on back side of the Panic Latch of reputed brand and manufacture to be approved by the Engineer- in- charge, all complete.

M&L for rendering 15 mm thick pre polymer modified ready mixed cement based plaster in two coats 10 mm thick base coat and 5 mm thick finishing/final coat. Polymer modified ready mixed cement based plaster should having minimum composition of cement & sand 1:4 using fully treated dry, well graded natural sand conforming to IS-383 suitable for external plastering having low rebound properties, low water demand for curing properties, mechnical mixing with water in a matalic tray only to made good, consistency as per the specification of the manufacturer and applied over damaged and concrete/masonary surfaces incl necessary scaffolding complete all as specified and directed.

M & L for Anodised aluminium snap grid frame work for false ceiling of grid size 600X600 mm with Hangers 2-4 mm dia. G.I. (upto 1200mm length) adjusting level fixed to roof slabs by means of ceilling cleats made out of G.I. flat 40 x 3 mm size 60mm long and expansion hold fasteners 12.5mm dia. 40mm long fixing with cement fiber board of size 595 mm x 595mmX4mm etc complete all as specified all as specified. (Make : Everest or equvalent as approved by GE)

M & L for preparing new plastered surfaces of walls and applying two coats of oil bound distemper with priming plastered and other surfaces with alkali resistant primer with 3mm thk wall care putty on plastered surfaces including necessary scaffolding complete all as specified and directed.

Providing and fixing raised access false flooring of approved make, comprising modular panels of size 600 mm × 600 mm × 35 mm thick, fabricated from high-density cementitious core/steel encapsulated construction, suitable for uniformly distributed load as per manufacturer’s specifications, complete with all necessary pedestals, stringers, brackets, and accessories. The flooring system shall be installed to achieve a finished floor height of 600 mm above the existing floor level, including galvanized steel understructure with adjustable pedestals, leveling, alignment, and necessary fixing arrangements, complete in all respects as directed by the Engineer-in-Charge.

Providing and fixing 12 mm thick frameless toughened glass door shutter of approved brand and manufacture, including providing and fixing top & bottom pivot & double acting hydraulic floor spring type fixing arrangement and making necessary holes etc. for fixing required door fittings, all complete as per direction of Engineer-in-charge (Door handle, lock and stopper etc.to be included ).