REPAIR MAINTENANCE AND ADDRESSING LEAKAGE SEEPAGE FROM WATER RETAINING RCC STRUCTURE UNDER AGE BR I OF GE NW NAVY NAGAR COLABA MUMBAI

Amount

M & L Drilling Holes of 12mm dia, upto 100mm deep holes in structural members at the intervals of 300 to 500mm in staggered manner or along the crack as directed by the Engr-in-charge in RC structural element including Cleaning of the holes by air blower and Inserting 12mm dia. Teflon nozzles compatible with epoxy injector and having machined external end to receive outlet of grouting gun. Fix it inside the holes by applying thixotropic epoxy putty to ensure complete sealing and allow to cure the system for min.8 hrs before grouting including removing nozzle projections, excess putty if any over concrete element grinding, leveling and finishing the external surface, after completion of the work, etc complete. Note : Epoxy putty cost are included in the item rate. Drilling of hole shall be done by authorized applicator and the work shall be executed in the presence of company rep.

M & L Injecting low viscosity high molecular weight thermostat polymer grout by pressure and using pressure epoxy injector with accessories till nozzles refused to accept the grout, Including Mixing material components part a and part b in required quantities as per mfg instruction by weigh batching Filling the grouting gun with monopol 250 H and maintaining desired pressure in the gun, air compressor and at exit (minimum 3 to 4 kg/Cm2) by a mechanism to monitor both pressure gauges and controlling the same by release valves and release the grout as per requirement simultaneously to grout the structural element through prefixed nozzles till its refusal. Seal the nozzle with thixotropic epoxy putty after the refusal. Note : leakages through other nozzles or cracks are required to be monitored while grouting and such points to be sealed as and when required without any extra cost. MAKE: Dr Fixit Epoxy injection Grout/ Sika injection-201 N/ Fosroc conbextra EP 10or equivalent as approved by GE.

Material & Labour for chipping, removing carefully concrete work by low impact hammer, breaker without damaging the structure and cleaning and disposal of debris out side the premises etc complete as directed by Engr-in-charge. Note:- Hard concrete should not be removed by force complete all as specified and directed

M&L for providing L-shaped shear connector to roof 8mm dia and average 150mm long to 25 to 40mm projection @ 1 no per sqm of slab area complete after drilling upto required depth, fixing it with required chemical. Make : Fissure/Hilti as approved by Garrison Engineer.

M&L 30 mm thick shotcreting in RCC column, beam and soffit of RCC slab with approved M-30 Design mix ( using 10mm and below graded stone aggregate )using polypropelene macrofibre 6mm long & upto 9th storey, including all necessary scaffolding and props required to support the slab at required spacing up to the required height , machinery required, minimum pressure of shotcrete at nozzle shal not be less than 40 PSI and finished to uniform thickness with straight edge also including GI wiremesh weight not less then 2.4 Kg /Sqm (Measure seperately) and for making all necessary arengment for covering of walls & floors with PVC sheet / tarpolene to protect the surface from any damage due to shotcreting alongwith suitable ply board plateform including all necessary support required to create the plateform etc complete all as specified and directed.

S&F welded fabric GI wire mesh or wire, weight not less then 2.4 Kg /Sqm as reinforcement to concrete fixed to concrete surface

Material and labour for applying ready mix polymer (SBR latex) modified cement mortar 30 mm thick including troweling with wooden tools on prepared concrete surfaces of parent material complete all as specified and as directed (Note : Rate includes the rate of steel scaffolding. No separate payment will be paid for scaffolding).

Providing and application of hitech concrete penetrating, water based, organic, Bi-polar, calcium nitrite free, migratory corrosion inhibitor on concrete surface having Ph 9.5 which migrates to a virtual extent of 100 mm inside concrete through pores, to inhibit the corrosion process on embedded steel at both anodize and cathodic ends by depassivating the Electro-chemical reaction in that region thereby protecting rebar on all sides.

M&L for appication of Epoxy resin bonding agent with Sikadur 32 LP @ 0.5 kg/sqm or equivalent approved by GE complete as per manufacturers specification or as directed

Clean existing reinforcement with wire brush/ rotary wire brush to make surface free from rust scales, loose material, dirt etc. complete and providing, applying two coats of alkaline rust converting primer confirming to ASTMB- 117, on the existing rebars and allowing it to react with rust for 6 hrs and form a corrosion resistant, insoluble and adherent protective layer , including cleaning the reinforcement,wire brushing to remove loose rust spalls, with time interval of 1hour between the coats.

Providing and application full and unbroken coating of anti corrosive protective zinc rich epoxy coating on expose reinforcement in two coats with time interval of minimum 1 hours between each coat including mixing of both components by weight as per mfg specifications, brush application, curing to form a anti corrosive protective coating with high mechanical strength to cementitious repair works, etc complete.

M&L for applying curing agent on concrete surface @ 0.5kg/sqm with make SIKA Antisol EWP or equivalent as approved by GE complete all as specified and directed

S & F in repairs Vitreous China squatting pan, ‘Orissa’ pattern, size 580 x 440 mm white, with integral foot rests (excluding flushing cistern and flush pipe ) including trap set in and including concrete including provision of lime concrete bedding complete all as specified and as directed (upto 9 Storey).

Supply & Fixing in repair 110mm PVC (SWR) ‘P’ or ‘S’ Traps jointed with solvent fixed to wall or floor including all fittings complete all as specified and as directed

Taking down rainwater or waste pipes (any size or pattern), including all fittings, heads, shoes, bends, swan-necks, etc., (measured overall as fixed along the centre line over fittings and accessories)

S&F 110mm PVC (SWR) pipes single socket-ed in any length with rubber ring joints fixed to walls complete all as specified and as directed

S & F for Pipe Supporting Clamping - Single Pipe of dia 110 mm (4") down take pipe fixing done with Clamping System consists of Profile Bracket + Continuous Slotted C Channel + U Bolt Rubber Sleeve mounted System running vertically with wall distance 75 mm (3") Material Qty. for one unit : 1. Profile Bracket Wall distance 75 mm (3") - 02 Nos 2. Continuous Slotted C Channel of Size 250 mm (10") - 1 No.; 3. U Bolt Rubber sleeve mounted for 110 mm (4") CI or PVC Pipe Dia. - 1 No.; and 4. Fixing Nail Zn coated of thickness 6.5 mm and length 63 mm (2 1/2") - 4 nos. All other detail as specified in Chief Engineer Navy Mumbai Technical Drawing (TD) of Pipe Supporting System No. TD/2023/01. complete all as specified and as directed (upto 9 Storey).

S&F 75mm PVC (SWR) pipes single socketed in any length with rubber ring joints fixed to wall complete all as specified and as directed

S&F for Pipe Supporting Clamping - Single Pipe of dia 75mm (3") down take pipe fixing done with Clamping System consists of Profile Bracket + Continuous Slotted C Channel + U Bolt Rubber Sleeve mounted System running vertically with wall distance 75 mm (3") Material Qty. for one unit : 1. Profile Bracket Wall distance 75 mm (3") - 02 Nos 2. Continuous Slotted C Channel of Size 250 mm (10") - 1 No.; 3. U Bolt Rubber sleeve mounted for 75mm (3") PVC Pipe Dia. - 1 No.; and 4. Fixing Nail Zn coated of thickness 6.5 mm and length 63 mm (2 1/2") - 4 nos. All other detail as specified in Chief Engineer Navy Mumbai Technical Drawing (TD) of Pipe Supporting System No. TD/2023/01. complete all as specified and as directed

S&F PVC (SWR) reducers 110mm bore complete all as specified and as directed

S&F PVC (SWR) bend any radius with oval access door 110mm bore complete all as specified and as directed

S&F PVC (SWR) bend any radius with oval access door 75mm bore complete all as specified and as directed

S&F PVC (SWR) branch pieces, single (single Y) equal or unequal 75 mm bore without oval access door complete all as specified and as directed ..

S&F PVC (SWR) branch pieces, single (double Y) equal or unequal 110 mm bore without oval access door complete all as specified and as directed ..

S&F PVC (SWR) vent cowl 75mm bore with cement joints complete all as specified and as directed ..

S & F PVC (SWR) branch piece, Single (single T) equal or unequal for 75 mm bore with oval access door complete all as specified and as directed ..

S&F PVC (SWR) floor trap, plain with grating including jointing with solvent cement for 75 mm outlet pipe complete all as specified and as directed

S&F 160mm PVC (SWR) pipes single socket-ed in any length with rubber ring joints fixed to walls complete all as specified and as directed

S & F for Pipe Supporting Clamping - Single pipe of dia 6" (160 mm) down take pipe fixing done with Clamping System consists of Profile Bracket + Continuous Slotted C Channel + U Bolt Rubber Sleeve mounted System running vertically with wall distance 75 mm (3"): Material Qty. for one unit : 1. Profile Bracket Wall distance 75 mm (3") - 2 Nos. 2. Continuous Slotted C Channel of Size 300 mm (12") - 1 No.; 3. U Bolt Rubber Sleeve mounted for 160 mm (6") CI or PVC Pipe Dia. - 1 No.; and 4. Fixing Nail Zn coated of thickness 6.5 mm and length 63 mm (2 1/2") - 4 nos. All other details as specified in Chief Engineer Navy Mumbai Technical Drawing (TD) of Pipe Supporting System No. TD/2023/01. complete all as specified and as directed ..

S&F 160mm PVC (SWR) bends complete all as specified and as directed

Dismantling floor, hearth or wall tiling including cement mortar bedding (but not backing), removing serviceable tiles to store and rubbish off the premises upto 5 Storey.

M&L for 25mm thick Cement concrete type B-1, 1:2:4 (12.5mm grade aggregate) as in sub base floor.

M&L Non - skid coloured ceramic tiles 7 to 8 mm thick of area of each tile exceeding 0.11 sqm but not exceeding 0.18 sqm in floors over and including set and jointed in neat cement slurry and fixing of tiles using tiles adhesive (Note : Cost of factory made tiles adhesive screed bed are included in item rate) upto 5 Storey and thickness of tile adhesive shall be as per manufacturers installation .

M&L glazed ceramic tiles in vertical surface 450x300x 7 to 8 mm thick set and jointed in neat cement slurry over and including tiles adhesive and pointed in white or coloured cement to match (Note : The rates includes the cost of tiles adhesive ) complete all as specified and directed and thickness of tile adhesive shall be as per manufacturers installation.

Taking down cement or cement lime plaster on brick or stone walls, etc. including raking out joints, hacking for key, scrubbing down with water, etc and removal of debis outside defence and complete all as specified.

Providing and applying fair finish 15mm thick plaster with ready mix prepacked proportioned dry mix mortar mixed with PP fiber fair faces of brick wall or concrete surfaces , on internal surfaces including transporting of material, mixing, curing, etc.complete

Providing and applying fair finish 15mm thick plaster with ready mix prepacked proportioned dry mix mortar mixed with liquid water proofing compound ,PP fiber fair faces of brick wall or concrete surfaces , on external surfaces including transporting of material, mixing, curing, scaffoldings etc. complete Note :- (i) Liquid water proofing compound will be measured and paid seperately as supply only

Complete removal of existing treatment on wall surface all as directed.

Providing & applying anti algal water-based elastomeric exterior wall finish on plastered surfaces including surface preparation, applying suitable wall prime seal primer 8-10 sqm per ltr coverage area and application of two coats (base coat 4.2-4.7 & top coat 6-6.5 sqm per ltr coverage area ) of elastomeric paint by roller etc complete all as specified and directed

M&L for preparing newly plastered surfaces or putty surface of wall and applying two coats of oil emulsion distemper over a coat of alkali resistance primer including 2 mm thick wall care putty all as specified and as directed

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

M & L Framed work such as grills, gratings, etc., with ends of bars shouldered and/or riveted, or forged into spikes; framed guard bars; barred iron doors; ladders; framed balusters; walk ways; railings; framework of water tanks and similar work conforming to Fe 290 Gde E-165 all as specified and directed.

S&F rolled mild steel section (angle or tubualr type) as in main and cross beam, hip and jack rafters, purlins where connected to common rafter and running rails etc complete conforming to Fe-290- W(Gde?E165) quality? B including working platform/scaffolding) Complete all as specified and as directed by Engr-in-Charge.

M & L preparaing of new steel surfaces of any description and applying two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and as directed

Dismantling plain or corrugated steel sheeting, any gauge, thickness, including Nainital or similar pattern roof coverings or chajjas (FRP or any other pattern)

M&L pre- painted galvatume aluminum zinc coating GI based corrugated steel sheet 0.50mm thick of any colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws as specified

M & L Cutting chases, pinning in and making good to facings of brick/concrete/stone walling where required and pointing in cement mortar 1:3 to ends or edges of landings, steps, cills, sunshades, shelves, lintels, etc.; and cutting chases for concealed water tubing or concealed conduit wiring, etc., and making good, cutting not exc 10 cm girth complete all as specified and as directed

M&L for filleting in any position and to any shape of section area exc 25 sq cm n exc 50 sqcm in cement sand mortar 1:4 including all mitres, stops etc complete all as specified and as directed by Engg-In- Charge.

Supply only liquid water proofing compound.

SHRI SAI ENTERPRISES (BID ID -3251773)

AAGAM ENTERPRISES (BID ID -3254491)