REPAIR TO CHAJJA, PROJECTION, COLUMNS, BEAMS, AND ALLIED MAINT SERVICES FOR MD ACCN AT CELL NO 1 UNDER GE (NW) NOFRA, COLABA, MUMBAI.

Amount

Note: (i) The rate shall be inclusive of the high rise nature of building (G+19) and necessary scaffolding and all safety precaution and harnesses. (ii) Entire building to be covered with green cloth on MS scafolding upto 20th floor and necessary precaution sign board to be placed around the building before commencement and completiom of work. (iii) Debries removed outside MOD Land by the contractor and amount shall be deemed to be included in the rate quoted by the contractor.

Chipping, removing carefully concrete work by low impact hammer, breaker without damaging the structure & cleaning and disposal of debries out side the premises etc. complete as directed by Engr-in-Charge. Hard concrete should not be removed by force.

M&L for Clean existing reinforcement with wire/ rotary wire brush, making the surfaces free from loose material dirt etc. complete and applying two coats of alkaline rust converting primer of approved make. on the rebars, including cleaning the reinforcement, wirebrushing to remove loose rust spalls, wash the rebars with clean water within 3 min and wipe it dry complete as directed by Engr-in-Charge

M&L for applying two coats of Epoxy based Zinc primer in a span of four hours over the treated rebars and allow to dry for six hours, the application shall be by brush complete as directed by Engr-in-Charge

M&L for cleaning all loose laitance on the concrete substrate and applying one coat of epoxy bonding agent on exposed concrete surface to ensure bond between old concrete & new concrete by brush application Of approved make.

M&L for rendering minimum 20mm thick polymer modified mortar in cemet mortar (1:3) with graded quartz sand with additive Monolith - PMM of approved make or polymer mortar HB of approved make. 15% by weight of cement in one coat with and including curing as per manufacturer's instruction complete all as specified and as directed

M&L for Providing and applying water tight jacketing around columns/Beam/roof and RCC with M30 grade micro concrete including all lifts, shuttering, drilling holes and fixing shear anchor as per specification complete. (Note: Reinforcement shall be measured and paid separately.)

M&L for applying concrete protection coating on finished structural members exposed to atmosphere, complete all as specified and directed.

M&L for Drilling and fixing Rohibb Teflon nozzles in RCC members, including drilling holes of 12mm dia, 50 to 100mm deep holes. Works shall be carried out as under :- (i) Cleaning of holes. Clean the holes by air blower prior to fixing nozzles. (ii) Fixing of nozzles. Insert 12mm dia. Rohibb Teflon nozzles in cleaned holes. External end of nozzles to be machine to receive outlet of grouting gun.Fix it inside the holes by applying thixotropic epoxy putty to ensure complete sealing. Cure the system for min.12 hrs. (iii) Cutting of nozzles. Cut the nozzles by chisel after completion of grouting without damaging structural elements. (iv) In case crack upto 2mm wide, fix the injection nozzels directly over the cracks, at intervals of 6 to 9 inches, using a drilling machine. Fix PVC/MS nozzels in these holes with fast-setting epoxy putty & let it dry for 2 to 3 days. Also, seal the crack between the ports with epoxy putty. (v) In case where the crack is wider than 2mm upto 4 to 5mm, drill holes at the sides of the crack in a staggered fashion, at intervals of 6 inches and affix them with epoxy putty as mentioned above. (vi) Also, seal the face of the carck with a liberal application of the epoxy putty.

M&L for Injecting of site mixed cement slurry grout, mixed in specified proportion containing cement, sand water with addition of plasticizers (approved make) & migratory corrosion inhibitors, water cement ratio shall be varied between 0.5 to 1.0 for each hole, shrinkage compensating cement slurry mixed to a lump free fresh creamy consistency ,Mixing shall be done by mechanical mixer continuously stirring mechanically to keep cement particles in suspension. Injection of approved/specified grout by means of pump at a pressure of 3-5 Kg/cm2 etc complete till the grout mix flows out from the nozzle indicating complete filling of grout in the holes drilled of complete all as specified and directed.

M&L for Injecting low viscosity (3-5cps) high molecular weight monomer by pressure and using mechanized injector gun with accessories till nozzles refuses to accept the grout, Including,Mixing of materialas:Mixing of material components(part a&b) in the required quantities as per manufacturer's instruction by weigh batching.Grouting:Fill the grouting gun with concrete penetrating corrosion inhibitor EPCO-KP-100/Protectsil CIT or Ferogard 903. Maintain desired pressure in the gun by air compressor; maintain the pressureat exit(2 to 3kg/cm2) by monitoring pressure guage at exit.Grout the material through prefixed nozzles in the structural elements@ 100ml per nozzle. Repeat the process for all the nozzles complete all as specified and directed.

M & L for Replacement of steel reinforcement with TMT (CRS) bars of appropriate size where 30% of cross section is reduced including dismantling of rusted steel complete all as specified and directed.

M & L for Providing and fixing additional main steel bar or stirrupsof designed diameter in various structural elements like column ,beams and foundations including drilling ,bending and fixing the bars with epoxy putty etc. complete (Steel provided on the basis of 1% of volume of concrete).

Cleaning the dust, vegetation, sand,dry leaves and other waste material at the rain water pipe of any size and any description, spouts, water outlets of the roofs etc as direcetd and dispose off debris at a distance of 500km and n.exc 1.5 Km including taking down and refixing of existing pipes including necessary fixing arrangements

Taking down cast iron pipes of any size or pattern at any position including all fittings such as bends, heads (measured overall as fixed along the centre line over fiitings and accessories) including removing vegetation growth around pipes as required, making good to surface to match with eixisting including necessary scaffolding etc complete all as specified and directed.

M&L for 100m dia cast iron soil waste and vent pipes (sand cast pipes) in any length with or without ears with cement joints fixed to walls all as specified and directed.

Fixing only 100m dia cast iron soil waste and vent pipes (sand cast pipes) in any length with or without ears with cement joints fixed to walls all as specified and directed. (Note:- The old serviceable 100mm bore CI pipe obtained from Srl item No. 15 shall be reused in this item.)

M&L 75mm bore cast iron soil waste and vent pipes (sand cast pipes) in any length with or without ears with cement joints fixed to walls all as specified and directed.

Fixing only 75mm dia cast iron soil waste and vent pipes (sand cast pipes) in any length with or without ears with cement joints fixed to walls all as specified and directed. (Note:- The old serviceable 75mm bore CI pipe obtained from Srl item No. 15 shall be reused in this item.)

S&F CI bends (any radiius) diminishing pieces or trapers (larger bore measured) fitted with oval access doors of following sizes

(a) 75mm dia

(b) 100mm dia

Fixing only CI bends 75mm dia diminishing pieces or trapers (larger bore measured) fitted with oval access doors (Note:- The old serviceable bends obtained from item No. 20.01 shall be re-used.)

Fixing only CI bends 100mm dia diminishing pieces or trapers (larger bore measured) fitted with oval access doors (Note:- The old serviceable bends obtained from item No. 20.02 shall be re-used.)

S&F CI branch pieces single (equal or unequal) ordinary or inverted ( spigot or socket type) or with parallel branches of following sizes:-

(a) 75mm dia

(b) 100mm dia

S&F CI branch pieces Double (equal or unequal) ordinary or inverted ( spigot or socket type) or with parallel branches of following sizes:-

(a) 75mm dia

(b) 100mm dia

Fixing only CI branch pieces of 75mm dia (equal or unequal) ordinary or inverted ( spigot or socket type) or with parallel branches. (Note :- The old serviceable branch piece obtained from item No. 23.01,24.01 shall be re-used in this item.)

Fixing only CI branch pieces of 100mm dia (equal or unequal) ordinary or inverted ( spigot or socket type) or with parallel branches. (Note :- The old serviceable branch piece obtained from item No. 23.02,24.02 shall be re-used in this item.)

Dismantling of Plain or corrugated steel sheeting, any gauge, thickness, including Nainital or similar pattern roof /wall coverings and removing Dismantaled materials such as serviceable / unservicesble Plain or corrugated steel sheeting,etc. out side MD land and rubbish off the premises complete all as specified and as directed by the Engineer-in-Charge.

M & L for pre-painted hot-dip aluminium-zinc alloy metallic coated corrugated steel sheet, any pattern corresponding to IS 15965:2012 of durability class 3, atmospheric classification category 3, coating class AZ150, 0.50 mm thick, of an approved colour and having yield strength of 550 MPa as in roof covering fixed with self tapping screws as specified including necessary scaffolding and safety measures at any floor for height of building exceeding 10 metres but not exceeding 20 metres complete all as specified and as directed

M & L for pre-painted hot-dip aluminium-zinc alloy metallic coated plain steel sheet as per IS 15965:2012 of durability class 3, atmospheric classification category 3, coating class AZ150, 0.50 mm thick, of an approved colour and having yield strength of 550 MPa as in ridge/ valley/ gutter fixed with self tapping screws as specified including necessary scaffolding and safety measures at any floor for height of building exceeding 10 metres but not exceeding 20 metres complete all as specified and as directed.

Dismantling wrought iron or mild steel complete all as specified and as directed

S & F MS sections as in ISMC, angle, main and cross beams, hip and jack rafters; purlins,rolled section where connected to common rafters and running rails and guides for truss/colume/ staircase/ladder/anchor bolt for columns/base plates/gussate plates, wind tie,door,gate,window etc including cutting welding etc; fixed with angle cleats or other connecting plates complete all as specified and directed.

M&L for preparing new or previously untreated steel surface of any description, over 10cm in width or girth and applying two coats of synthetic enamel paint over one coat of red oxide primer complete all as specified and directed.

M & L for preparing new plastered surfaces of walls and applying two coats of oil bound distemper over a coat of approved primer on plastered surfaces complete all as specified and directed.

M & L for preparing new surfaces of walls and applying two coats of acrylic (antifungal) exterior grade paint over one coat of primer complete all as specified.

M & L for complete removal of existing RCC Grill And Jali and fixing new premium quality heavy duty rcc designer jali/grill thickness 60mm and above including all necessary connected items complete all as specified and directed.

M&L for preparation of old decorated surfaces of walls by scrapping old paint with mechanically operated steel wire brush, wash the surface throughly and applying two coats of acrylic emulsion exterior grade (100%) (1st coat shall be applied by brush/roller, 2nd coat shall be applied by using spray machine over a coat of primer complete including necessary steel scaffolding + green cloth all round the work side for any posititon/height, complete all as specified and directed.(For bldg from GF to fourteen Floor). Note :-Necessary safety precautions need to taken before applying paint.

SHRI SAI ENTERPRISES (BID ID -3290979)

ROHIT CONSTRUCTION (BID ID -3291580)

Nilesh Construction (BID ID -3291605)

Anil Industrial Corporation (BID ID -3291910)

RAMESH ENTERPRISES (BID ID -3290224)