GER-17/2022-23 Repair to water proofing treatment to RCC roof slab, CGI sheets, false ceiling and cleaning of OH water tanks of AGE B/R Dett III under 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.

Supply only integral water proofing compound complete all as specifed and directed.

M&L for PCC 1:2:4 type B-1 using 20 mm graded stone aggregate to make up undulations as in levelling course/roof padding over roof surface after 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. .

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

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

Dismantling of timber scantling 40 Sqcm and over in section, in any position as in unframed or framed work 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) complete all as specified and directed. (Note :- All structural steel work shall be painted with one shop coat of zinc chromate red oxide primer including preparation of surfaces before fabrication and rate shall be included this item).

M&L for preparation of new steel surface (for rolled steel section already priming coat applied) exc 10cm width or girth and applying two coats of synthetic enamel paint complete all as specified.

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, hips, valley gutters, 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.

M&L for 4mm thick designer cement fibre 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 12 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, level adjusters and screws etc. 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.

M&L for preparation of previously painted old roof surfaces etc to receive painting by coating with zinc oxide including scrubing washing and cleaning etc and applying two coats for Synthetic enamel paint over a coat of red oxide zinc crome primer complete all as specified and directed by GE.

S&F for Rotational moulded polythylene water storage tank (ISI marked) with float valve, plastic lid cover, multi- layered, cylindrical vertical with closed top, hoisted and fixed in position of capacity 500 ltrs including dismantling old unserviceable tank and making connections inlcuding suitable GI wash out, over flow, nipple and including 15mm bore ball brass valve with union (two nos each) screwed for iron pipe and fixed complete all as specifed and directed.

S&F for rotational moulded polythylene water storage tank (ISI marked) with float valve, plastic lid cover, multi- layered, cylindrical vertical with closed top, hoisted and fixed in position of capacity 1000 ltrs including dismantling old unserviceable tank and making connections inlcuding suitable GI wash out, over flow, nipple and including 20mm bore ball brass valve with union (two nos each) screwed for iron pipe and fixed complete all as specifed and directed.

M&L for overhead PVC tank cleaning and removing all scale and dirt from tank and from mouths of circulating pipes etc exceeding 250 and not exceeding 500 ltr capacity after dismantling of any position with required bleaching powder, jute etc and refixing at same place including replacement of required fitting (PCV ball valve with brass road, tank nipple etc) complete all as specified and directed.

M&L for overhead PVC tank cleaning and removing all scale and dirt from tank and from mouths of circulating pipes etc exceeding 500 and not exceeding 1000 ltr capacity after dismantling of any position with required bleaching powder, jute etc and refixing at same place including replacement of required fitting (PCV ball valve with brass road, tank nipple etc) complete all as specified and directed.

S&F for 15 mm dia ball brass valves, high pressure, with polythene float and flynut complete, screwed for iron pipe or brass ferrule and fixed complete as in repair all as specified and directed.

S&F for 20 mm dia ball brass valves, high pressure, with polythene float and flynut complete, screwed for iron pipe or brass ferrule and fixed complete as in repair all as specified and directed.

S&F for 20mm dia stop valve, cast copper alloy, screwed for high pressure with crutch or butterfly handle, screwed suitable for 15mm bore iron pipe or for union both ends as in repair complete all as specified and directed.

S&F for 15 mm bore galvanized steel GI tubing medium grade with all fittings such as bends, socket, Tee, Elbow, union, Nipple, short pieces and fixed to walls, ceilings or laid in floors after taking up or down of old GI tubing 15 mm bore and connections including cleaning for refixing or removal complete all as specified and directed.

S&F for 20 mm bore galvanized steel GI tubing medium grade with all fittings such as bends, socket, Tee, Elbow, union, Nipple, short pieces and fixed to walls, ceilings or laid in floors after taking up or down of old GI tubing 20 mm bore and connections including cleaning for refixing or removal 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 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 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 stone walling of random rubble masonry (except stones, using old unserviceable stone after cleaning), uncoursed, well bonded, bedded and soilidly hearted, built in cement mortar (1:6), complete all as specified and directed.

M&L for extra over stone walling of any type of stone for hammer dressing to face stones and dressing of face beds with maximum depression on face from straight edge held against the dressed surface n exc 20 mm and joints, as specified, of random rubble walling, uncoursed or brought upto courses complete all as specified and directed.

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

M&L for Preparation of newly plastered surfaces on walls and applying two coats of cement base paint over a coat of cement primer complete all as specified and directed.

M&L for rendering 15 mm thick in cement mortar (1:6) on other than fair faces of brick work walls, finished even and smooth without using extra cement complete all as specified and directed.

M&L for preparation of new plastered surfaces of walls and applying two coats of distemper oil emulsion over a coat of chalk whitening complete all as specified and directed.

M&L for complete removal of existing treatment of walls and applying two coats of oil bound distemper over a coat of alkali resistant primer complete all as specified and directed.

M&L for complete removal of existing treatment of walls and applying two coats of cement base paint over a coat of cement primer complete all as specified and directed.

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

VIJAY KUMAR SURI AND SONS

KANWAL KUMAR GUPTA

M/S TUFAIL HUSSAIN MANHAS

M/S SV CONSTRUCTIONS

NATIONAL TRADING COMPANY