EXTERNAL PERIODICAL AND REPAIR REPLACEMENT OF PIPELINE AND WATER TANKS TO BLDGS AT NASA, INA EZHIMALA

Amount

Material and labour for preparation of old treated mangalore pattern roof tile surface by cleaning the surfaces with jet washing and wire brushes to remove all existing fungal, growth etc. and applying one coat of antifungal paint using Asian or equivalent tile guard paint complete all as per manufactures instructions. Note:- The work shall be carried out on / upto double storey slopping roof, chajja etc. and contractor is required to make necessary arrangements for water and electricity required for jet washing and rate quoted is deemeed to be included for the above.

Dismantling single layer of Mangalore pattern tiles in roofing, all as specified and as directed.

Material and labour, roof tiles Mangalore pattern interlocking at side joints, laid dry, all as specified and as directed.

All as per item No 3 here-in-before but except tiles.

Material and labour, ridge or hip tiles to suit Mangalore pattern or roofing tiles bedded and jointed in cement mortar (1:6) using water proofing compound, complete all as specified and as directed.

Dismantling plain or corrugated steel sheeting / galvalume sheets, any gauge, thickness as in roof covering including aluminium frame complete all as specified and as directed.

Dismantling wrought iron or mild steel of any description not otherwise provided for, all as specified and as directed.

Supply and fix Anodised aluminium frame for roofing tiles with one or more rebates including joining cleat for fixing etc. ccomplete all as specified and as directed.

Supply and fix Pre-painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.50mm of an colour having tensile strength of 550Mpa as in roof covering/cladding to wall, fixed with self tapping screws with bitumen washer complete all as specified and as directed.

Supply and fix Pre-painted galvalume aluminium zinc coating GI based plain steel sheet 0.50mm of an colour having tensile strength of 550Mpa as in roof covering/cladding to wall, fixed with self tapping screws with bitumen washer complete all as specified and as directed.

Supply and fix steel work in tubular trusses (tubular, angle, square and rectangular etc ) including erection shaped washer etc. complete using ERW or induction butt welded tubes. conforming to IS 1161-1998 grade St-240 for round tubes complete all as specified and as directed.

Erection and fixing only steel work in tubular trusses (tubular, angle, square and rectangular etc ) including shaped washer etc. complete using ERW or induction butt welded tubes. conforming to IS 1161-1998 grade St-240 for round tubes complete all as specified and as directed.

Taking down cement or cement lime plaster of any description including raking out joints, hacking for key and scrubbing down with water complete all as specified and as directed..

Material and labour for complete removal of existing treatment on steel surface including scrubing cleaning preparation for new coat of painting as required as per direction by Engineer-in-Charge.

Material and labour for preparation of untreated surfaces exc 10cm width or girth and applying two coats of synthetic enamel paint over one coat of red oxide zinc chrome on steel/iron surfaces complete all as specified and as directed.

Material and labour for preparation of old painted surfaces exc 10cm width or girth and applying one coat of synthetic enamel paint on steel/iron surfaces complete all as specified and as directed.

Material and labour for preparation of old painted steel surfaces of any description over 10 cm width or girth and applying one coat of epoxy paint complete all as specified and as directed.

Material and labour for preparation of old painted steel surfaces of any description over 10 cm width or girth and applying two coats of epoxy paint over a coat of epoxy primer complete all as specified and as directed.

Material and labour for rendering 15 mm thick CM (1:4) using liquid WPC over fair faces of brick work or concrete surfaces finished even and smooth (In Patches) all as specified and as directed. Note: WPC shall be measured and paid under separate item.

Removing Shrubs, Vegitation, roots etc. from External wall surfaces , by dismantling Brick work , RCC or taking down plastering as the case may be, including dismantling SWR pipes, OH PVC service tanks etc. and refixing the same in original position and making good the surface dismantled all as specified and as directed. (Area to be dismantled exc 1 Sqm and not exc 3 Sqm)

Material and labour for treating holes cracks etc. up to 10 mm by making V groove using patti blades and filling the cracks with cement and sand aggregate mixture developed with polymer modified mortar (PMM) with suitable polymer like home shield crack fill paste home shield advance latex plus and home shield cement mix plus (berger make or equivalent) and allowed to dry complete all as specified and as directed.

Material and labour for preparation of old treated wall surfaces by scrubbing using nylon /jute/wire brushes scrapper blades surfaces and applying two coats of acrylic emulsion paint on wall (interior grade) using suitable mechanical sprayer all as specified and as per manufacture's instructions.

Supply only liquid water proofing compound (WPC)

Dismantling the existing water tank and Supply and fix rotational moulded polyethylene water storage tanks 3 layer white colour with threded cover (cylindrical vertical with closed top) hoisted and fixed in position all as specified in SSR Part I - Capacity 500 litres

Supply and fix in repair ball brass valves, high pressure, with polythene float and flynut (25mm)complete, screwed for iron pipe or brass ferrule and fixed all as specified and as directed .

Taking up or down steel tubing and connections, 25 or 32 mm bore incl cleaning and removal to store, all as specified and as directed..

Taking up or down steel tubing and connections, 20 mm bore incl cleaning and removal to store, all as specified and as directed.

Supply and fix 32mm outer dia CPVC pipes SDR 11 & Plain CPVC SDR 11 fittings on walls/ceiling or laying in floors complete all as specified and as directed.

Supply and fix 25mm outer dia CPVC pipes SDR 11 & Plain CPVC SDR 11 fittings on walls/ceiling or laying in floors complete all as specified and as directed.

Supply and fix 20mm outer dia CPVC pipes SDR 11 & Plain CPVC SDR 11 fittings on walls/ceiling or laying in floors complete all as specified and as directed.

Supply and fix in repairs 15mm bore chromium plated bib taps long body fancy type, cast copper alloy, screwed down, high pressure, with crutch or butterfly handle, screwed both ends for iron pipes including taking down of old items complete all as specified and as directed.

Supply and fix in repairs angular stop valve, cast copper alloy, screwed down, high pressure with crutch or butterfly handle, chromium plated, fancy type, screwed both ends for iron pipe or for union and fixed, suitable for 15 mm bore pipe, complete all as specified and as directed.

Supply and fix PP-R Gate valves (brass insert) 25 mm outer dia of pipes as per requirement of the site, all as specified and as directed.

Supply and fix CPVC Brass Elbow 25 mm outer dia, all as specified and as directed.

Supply and fix CPVC Brass Elbow 20 to 15 mm outer dia, all as specified and as directed.

Supply and fix CPVC Tank Adaptor 25 mm outer dia, all as specified and as directed.

Supply and fix CPVC Union 25 mm outer dia, all as specified and as directed.

Supply and fix CPVC Brass Tee 20 mm outer dia, all as specified and as directed.

Dismantling of PVC drain pipes 75 /40 mm bore drain pipes set in cement mortor complete all as specified and as directed.

Dismantling of cast iron or reinforced concrete drain pipes 100/110 mm bore drain pipes (CI/PVC) set in cement mortor and taking out of trenches/walls, if required (Work in foul condition and in shaft) complete all as specified and as directed.

Supply and fix PVC (SWR) pipes 110 mm bore, single socketed, in any length as in waste pipe fixed with rubber ring joints laid in trenches all as directed.

Supply and fix PVC (SWR) bend with door suitable for 110 mm bore pipes all as specified and as directed.

Supply and fix in repairs PVC (SWR) branch piece (single 'y') with door suitable for 110 mm bore pipes all as specified and as directed.

Supply and fix in repairs PVC (SWR) pipes 75 mm bore, single socketed , in any length as in waste/vent pipe fixed with rubber ring joints fixed on walls using necessary saddles, screws etc complete all as specified and as directed.

Supply and fix in repairs PVC (SWR) bend with door suitable for 75 mm bore pipes all as specified and as directed.

Supply and fix PVC (SWR) pipes 40 mm bore, single socketed , in any length as in waste/vent pipe fixed with rubber ring joints fixed on walls inclu bend and sokect to joint with toitet and bathroom floor pipe using necessary saddles, screws etc complete all as specified and as directed.

Disconnecting existing tanks, setting aside (or lowering if required) for repairs, cleaning, etc. and hoisting if required reconnecting and re-fixing in position. - Capacity exc 250 n.exc 500 litres

Taking down existing water proofing treatment of any description and removal rubbish off the premises, complete all as specified and as directed.

Demolition of cement concrete in Roofs, floors (other than ground floors), beams, staircases, landing, chajjas and similar suspended work all as specified and as directed.

Cutting out cracks to V-section in existing roofs or terracing, cleaning out, wetting, grouting with cement and sand slurry 1:3 using water proofing Compound, complete all as specified and as directed.

Material and labour for cement concrete (1:2:4) Type B1 using 20mm graded stone aggregate as in roof kerb, rounded or chamfered on edges, complete all as specified and as directed.

Material and labour for cement concrete (1:2:4), Type B1 using 20mm graded stone aggregate as in filling and mass concrete, roof slab padding preparatory to roof treatment, ccomplete all as specified and as directed.

Material and labour, 10mm thick rendering in CM (1:3) on roof with water proofing compound surfaces finished even and smooth without using extra cement, complete all as specified and as directed. Note: water proofing compound shall be measured and paid separately

Material and labour, applying evenly a tack coat of industrial bitumen 85/25 at the rate of 1.2 Kg per Sqm including cleaning surface for laying, APP based polymeric membrane minimum weighing 4kg/sqm and minimum 4mm thick reinforced with polyester non woven fabric (wt not less than 160 gms/sqm) by forced application complete all as specified and as directed.

Dismantling Wall and ceiling boards with frame work (fibre, pulp, insulation, etc.) or insulation boards/slabs/ blankets, any thickness, including cover fillets.

Supply and fix Hangers 6 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 complete all as specified and as directed.

Supply and fix anodised aluminium snap grid frame work for false ceiling - Size of grid 605 x 605mm, all as specified and as directed.

Supply and fix 4mm thick E-board , multipurpiose, decorative type,for ceiling purpose complete all as specified and directed.

Gates Infra Construction Co (BID ID -3495756)

SANDR (BID ID -3503495)

EXCEL ENGINEERING (BID ID -3496527)

SATHEESAN.T.K (BID ID -3503294)