GER-06/2021-22 Repair to RCC slabs CGI sheets false ceiling and certain misc work under AGE B/R Dett III of GE 862 EWS

Amount

Complete removal of existing water proofing treatment over RCC roof, projections of any thickness, any type by stripping out old tar felt over roofs, parapets, chimney stacks etc laid horizontally or vertically including taking out layer of cement plaster etc and cleaning the surface with wire brush including removing debris from the site and depositing in low lying area where directed and providing following :- (a) Rendering 10mm thick in Cement mortar (1:3) on concrete roof surfaces and finish the surface even and smooth without using extra cement including mixing water proofing compound @ 2% by weight of cement. (b) Apply a coat of bituminous primer confirming to IS-3384@ 0.4 ltr/Sqm on newly plastered surface after curing as per IS-456 and dried. (c) After the primed surface has dried, apply a coat of hot blown bitumen(85/25 penetration) confirming to IS-702 @ 1.2 Kg/Sqm of the surface. (d) Provide polymeric water proofing membrane ISI marked laid with overlaps, bonded with hot blown bitumen, and laid by torch application method, end overlaps shall not be less than 150mm and side lap 75mm. Polymeric water proofing membrane should be five layered with centre core as 90 micron high molecular high density polyethylene film, min weight 3 Kg per sqm. APP membrane shall laid acorss the slope from lowest line of sloping roof towards ridge. (e) Over the APP membrane, apply a coat of semi hot blown 85/25 penetration grade bitumen confirming to IS-702 @ 1.20 Kg/ sqm and blinded with fine sand in dry condition @ 0.50 Kg / Sqm dusted over the bitumen coat Note : (i) Care shall be taken to avoid wrinkle and air gaps while sticking membrane to the bitumen applied surface. (ii) Ponding test shall be conducted for 72 hrs as directed by Engr-In-Charge. (iii) Water proofing compound shall be measured and paid for separately.

Dismantling plain or corrugated steel sheeting, any gauge, thickness including Nanital or similar pattern roof covering complete all as specified and directed.

Dismantling asbestos cement (corrugated, semi corrugated etc) sheeting in roof covering complete all as specified and directed.

S&F for Pre-painted galvalume aluminium zinc coated GI based corrugated steel sheet 0.50mm thick of approved colour having tensile strength 550 MPa as in roof covering/cladding to wall fixed with self tapping screws including side and end lap as per manufacturer’s instructions complete all as specified and directed.

S&F for Pre-painted galvalume aluminium zinc coated GI based plain steel sheet 0.50mm thick of approved colour having tensile strength 550 MPa as in ridges, fixed with self tapping screws including side and end lap as per manufacturer’s instructions complete all as specified and directed.

S&F for Pre-painted galvalume aluminium zinc coated GI based corrugated steel sheet 0.50mm thick of approved colour having tensile strength 550 MPa as in roof bent to a curve of any radius as directed by GE fixed with self tapping screws including side end lap as per manufacturer's instructions complete all as specified and directed.

S&F for 4mm thick designer ceiling board in ceiling fixed with screw as per manufacturers instructions, laid over and including hot dipped galvanised iron in post grid with 24mm wide T section exposed flanges which shall be powder coated white. The frame work shall comprise of main runner made from 0.33 mm thick galvanised steel sheet of size 24 x 32 x 300 mm spaced at 1200 mm centres securely fixed to the structural soffits by approved hangers at 1200mm maximum centres. Hangers of GI wire 4 mm dia to be fixed by approved rawl plug or hanged with existing truss members. The last hanger at the end of each main runner shall not be greater than 450 mm from adjacent wall flush fittings of 1200 mm long screws Tee with (double stiching) to interlocked between main runners at 600 mm centre to centre from 1200 x 600 mm modules cross tee longer than 600 mm modules to be formed by fittings 600 mm long cross tee, tee perimeter wall angle shall be of 0.45 mm thick galvanised steel of size 19 x 19 mm and 300 mm long of white colour all as per insturctions including dismantling of existing board etc complete all as specified and directed.

Dismantling timber scantling 40 Sqcm and over in section, in any position as in unframed or framed work complete all as specified and directed.

Demolition of Brickwork or stone/boulder masonry, built in cement mortar including all quoins, arches, pillars, etc, but excluding ashlar facings, dressed stone-work and precast concrete articles complete all as specified and directed.

M&L for stone walling of random rubble masonry, uncoursed, well bonded, bedded and soilidly hearted, built in cement mortar (1:6), complete all as specified and directed.

M&L for Brick work with sub class 'B' bricks straight or curved on plan exc 6 m mean radius, built in cement mortar 1:6 complete all as specified and directed.

M&L for Brick work with sub- class 'B' bricks, straight or curved on plan to any radius in half brick thick walls, built in cement mortar (1:4) complete all as specified and as directed.

Taking down cement plaster, any description on brick or stone or cement concrete walls including raking out joints, hacking for key, scrubbing down with water etc complete all as specified and directed.

M&L for rendering 15mm thick cement plaster on fair faces of brick work or concrete surfaces in cement mortar (1:4), finished even and smooth without using extra cement complete all as specified and directed.

M&L for rendering 20 mm thick on other than fair faces of brick work or concrete surface or stone masonry on wall in cement mortar (1:6), finished even and smooth without using extra cement complete all as specified and directed.

M&L for rendering 10mm thick on ceiling surfaces finished even and smooth without using extra cement in cement mortar (1:3) complete all as specified and directed.

M&L for preparation of newly plastered surfaces on walls and applying two coats of white cement base paint over a coat of cement primer including preparing surface of cement base even and smooth with wall care putty complete all as specified and directed.

M&L for preparation of newly plastered surfaces on walls and applying two coats of distemper oil emulsion over a coat of alkali primer over 1.5mm thick Birla wall care putty complete all as specified and directed.

M&L for complete removal of existing treatment from old decorated surfaces of walls and applying two coats of cement base paint over a coat of white cement primer complete all as specified and as directed by the GE.

M&L for preparation of old surface by brooming down or steel wire brushing; scrapping down smoke soot, moulds, moss and efflorescent salts and trading oil and greasy spots and applying one coat of white wash complete all as specified and directed.

M&L for preparation of old surface by brooming down or steel wire brushing; scrapping down smoke soot, moulds, moss and efflorescent salts and trading oil and greasy spots and applying one of colour wash complete all as specified and directed.

Demolition of cement concrete (unreinforced) in ground floor and paving n exc 15 cm thickness below or above the ground level complete all as specified and directed.

M&L for PCC type B-1 (1:2:4), using 20 mm graded stone aggregates in surface channels and drains complete all as specified and directed.

M&L for 100mm thick PCC 1:4:8, type D-2 (using 40mm graded stone aggregates) as in sub base of floors complete all as specified and directed.

M&L for 50mm thick PCC 1:2:4, type B-1 (using 20mm graded stone aggregates) as in top of floors finished even and smooth with/without using extra cement complete all as specified and directed.

M&L for rolled section as in main and cross beam/columns, hip and jack, rafters, purlins where connected to common rafters and running rails and guides for sliding doors, fixed with angle cleats or other connecting plates (Fe-410W Gde E-250 Quality A) after dismantling of existing structural steel work complete all as specified and directed.

Note:- The contract sum arrived after deduction of amount of Sch of credit as listed in tender Documents.

NATIONAL TRADING COMPANY

M/S RAHUL GUPTA

M/S Jyoti Parkash Tilak Raj Gupta

SATVIR GUPTA ENGINEER and CONTRACTOR

aamir farooq bhat