STRUCTURAL REPAIRS TO RCC ROOF, COLUMN, BEAMS, CHAJJAS, PARAPET WALLS AND OTHER CONNECTED WORKS OF BUILDINGS AT NAD V, ABE PARK V, DAD,INS DEGA V AND DEGA VIHAR UNDER B R-II OF GE ND, VISAKHAPATNAM

Amount

M & L for Cutting / Chipping the spalling concrete surfaces of Slabs, Beams, Columns, Fins, Facias, Parapets & Chajjas etc. and trimming, cleaning the surfaces of any thickness to receive Guniting / Plastering, preparing surfaces and applying a coat of Zinc rich epoxy primer to all steel surfaces as antirust agent and welding steel wire Fabric / Mesh of size 75X25mm of weight not less then 4.0KG per Sq.m to existing reinforcement, applying a coat of Nito Bond AR of M/s. Fosroc Chemicals or equivalent approved bonding agent in M/s. Sika India Pvt. Ltd. or M/s. STP Ltd. or M/s. Choksey Chemicals Pvt. Ltd. or M/s Bostik India Pvt. Ltd. as per manufacturer's instructions and providing pressure Guniting upto 40 mm thick and averaging 25mm thick at a pressure of not less than 6 KG / Sq.cm in Cement Mortar 1:3 duly modifying the mortar with and including suitable bonding agent of M/s. Sika India Pvt. Ltd. or M/s. STP Ltd. or M/s. Choksey Chemicals Pvt. Ltd. or M/s Bostik India Pvt. Ltd. @ 5% of weight of cement for sides and soffits of Slabs, Beams, Columns, Fins, Parapets Facias & Chajjas etc., finishing surface rough and finally rendering require thickness in Cement Mortar 1:4 and finishing the top surface even and smooth without using extra cement conforming to proper geometrics including providing double scaffolding and safety measures as required and removal of the same on completion and disposal and depositing the demolished material to a distance not exceeding 1.5 KM complete all as specified and as directed.

M & L for Cutting / Chipping the spalling concrete surfaces of Slabs, Beams, Columns, Fins, Facias, Parapets & Chajjas etc. and trimming, cleaning the surfaces of thickness varies from 25mm to 100mm,with standard power driven percussion type of pneumatic chisel of standard make including tapering all edges and disposal of debis up to a lead of 50m and all lifts complete all as specified and as directed.

M & L for clean the rust over and behind a reinforcement bars by mannual method like hammeringf the rebar, using wire brush,chiseling to form a totally rust free finishing surface throughout the length og bar complete all as specified and as directed.

Supply and applying the High Performance Zn Yellow Primer to the existing prepared surface of reinforcement bars to protect from corrosion complete all as specified and as directed.

Supply and applying of Epoxy bonding agent which is pre-packed for on-site mixing use which have mix density 1070Kg/cubic metre and shear bond strenght of 4 N/Sqmm consumption to be maintained below 3 Kg/Sqm and overlaying of concrerte/mortar to be performed on epoxy bonding agent when itis tacky complete all as specified and as directed.

M & L for Micro Concreting for jacketing of Columns using Single component, shrinkage compensated, high strength, high flow cementitious micro-concrete having compressive strength minimum of M40 at 28 days such as Sikkarep Microcrete-4 of M/s. Sika India Pvt. Ltd. or equivalent in M/s. Fosroc Chemicals India [P] Ltd. or M/s. STP Ltd. or M/s. Choksey Chemicals Pvt. Ltd. or M/s Bostik India Pvt. Ltd. as per manufacturer's instructions blended with washed saturated surface dry [SSD], graded, low absorption, high density, aggregates of size 3mm to 10mm at 50% by weight of micro concrete [if thickness is 100mm or more] and water as per data sheet and pouring into the shuttering if required using birds beak type form work using suitable arrangement or if required using pumping device for uniform flow of Micro concrete complete all as specified and as directed. Note: The sides shuttering shall be removed preferably after 3 days and the bottom shuttering shall be removed preferably after 7 days ensuring proper bond between the micro concrete and existing concrete substrate.

M & L for Running Welding including additional reinforcement with the existing rods of high strength corrosion resistant TMT bars of 6 to 9 mm dia and over cut to length bend to shape including preparation of surfaces to be welded complete all as specified and as directed.

M & L for Running Welding including additional reinforcement with the existing rods of high strength corrosion resistant TMT bars of 9 to 20 mm dia and over cut to length bend to shape including preparation of surfaces to be welded complete all as specified and as directed.

M & L for High Strength Corrosion Resistant Deformed TMT Bars of 10mm dia and over, as in reinforcement, cut to length, bent to shape required including cranking, bending spirally for hooping, hooking ends and binding with annealed mild steel wire not less than 0.9mm dia or securing with clips or welded complete all as specified and as directed.

M & L for High Strength Corrosion Resistant Deformed TMT Bars of 6mm to 8mm dia, as in reinforcement, cut to length, bent to shape required including cranking, bending spirally for hooping, hooking ends and binding with annealed mild steel wire not less than 0.9mm dia or securing with clips or welded complete all as specified and as directed.

Demolition of Reinforced Cement Concrete [reinforcement cut as required to facilitate demolition] in ground floors and Pavings not exceeding 15cm thick [below or above ground level]\ complete all as specified and as directed.

M & L for RCC 1:1½:3, Type A-1, using 20mm graded stone aggregate for slabs suspended on walls,beams and coumns, in floor,roofs,landings and in shelves and the like etc complete all as specified and as directed.

Use and removal of steel formwork to soffits of suspended slabs such as roof slabs, floor slabs, landings and similar work not exceeding 200mm thick [horizontal or sloping] including fair finished surfaces complete all as specified and directed.

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

M & L for rendering to Stone masonry surfaces/ other than fair faces of brick work, 15 mm thick in Cement Mortar 1:6 and finishing the top surface even and smooth without using extra cement complete all as specified and as directed.

M & L for rendering 5 mm thick in Cement Mortar 1:3 on fair faces of concrete surface of ceiling surfaces finished even and smooth without using extra cement complete all as specified and as directed.

M & L for Roughening surfaces of old concrete floor by picking, sweeping clean and washing down with water to remove dust etc and brushing neat cement slurry with 3.0 KG of cement per Sq.m area, rendering 10mm thick in cement mortar 1:3 on concrete surfaces finished even and smooth without using extra cement including mixing of water proofing compound of approved make as per manufacturers instructions for levelling the surface smooth to receive the water proofing membrane, applying bituminous oil emulsion @ 0.50 Kg/Sqm, laying Polymeric water proofing membrane of weight not less than 3.00 Kg per Sq.m reinforced with polyester non-woven fabric of weight not less than 150 Grams per Sq.m, by torch application with side over lap of 100mm & end over lap of 150mm & tucked into the chases on vertical surfaces by thermo fusion including applying a coat of Blown Bitumen of grade 85/25 @ 1.2 Kg per Sq.m on top and finished with Two coats of silver paint including taking down existing Roof Treatment of any description complete all as specified and as directed. Note: The rate quoted shall be deemed to include cost of Water proofing compound and nothing shall be paid extra on this account.

M & L for Roughening surfaces of old concrete floor by picking, sweeping clean and washing down with water to remove dust etc and brushing neat cement slurry with 3.0 KG of cement per Sq.m area, rendering 10mm thick in cement mortar 1:3 on concrete surfaces finished even and smooth without using extra cement including mixing of water proofing compound of approved make as per manufacturers instructions for levelling the surface smooth and applying three coats of single component acrylic polymer modified, fibre reinforced water proof coating of (Brush Bond Roof Guard of M/s. Fosroc Chemicals or equivalent approved water proofing coating in M/s. Sika India Pvt. Ltd. or M/s. STP Ltd. or M/s. Choksey Chemicals Pvt. Ltd. or M/s Bostik India Pvt. Ltd. or M/s. Asian as per manufacturer's instructions complete all as required and as directed at site. Note: The rate quoted shall be deemed to include cost of Water proofing compound and nothing shall be paid extra on this account.

M & L APP based polymeric membrane self adhesive and minimum 1.5mm of thickness laid on RCC roof or Galvalume roof by removing all the dirts and scales from the roof complete all as required and as directed

M & L for Two coats of Weather Proof Exterior Emulsion Paint [100% Acrylic] by using auto roller/ airless sprayer over a Coat of Exterior Primer over suitable thickness of Cement based Wall Care Putty [primer and putty shall be of same manufacturer as that of exterior emulsion paint] by using multipurpose mixture for proper mixing of putty and putty sprayer for application of putty on newly plastered walls/ ceiling, pillasters, bands, borders, soffits of chajjas and projections including rubbing with sand paper to obtain a smooth surface complete all as specified and as directed. Note:- The contractor shall carryout Exterior Emulsion Painting and allied works under subject work through the Authorised Applicator of the manufacturer only. The lowest bidder shall submit MoU from manufacturer to provide technical support and trained persons for carrying out Exterior emulsion painting through their authorised applicators before commencement of the work to GE for approval.

M & L for Complete removal of existing treatment of any description on walls/ ceiling, pillasters, bands, borders, soffits of chajjas and projections by using vaccume based sanding machine, removal of nails including rubbing with sand paper to obtain a smooth surfaces and applying One coat of Weather Proof Exterior Emulsion Paint [100% Acrylic] by using auto roller/ airless sprayer over a Coat of Exterior Primer over suitable thickness of Cement based Wall Care Putty [primer and putty shall be of same manufacturer as that of exterior emulsion paint] by using multipurpose mixture for proper mixing of putty and putty sprayer for application of putty complete all as specified and as directed. Note:- The contractor shall carryout Weather proof Exterior Emulsion Painting under subject work through the Authorised Applicator of the manufacturer only. The lowest bidder shall submit MoU from manufacturer to provide technical support and trained persons for carrying out Weather proof Exterior Emulsion Painting through their authorised applicators before commencement of the work to GE for approval.

M & L for preparing newly plastered wall surfaces by using vaccume based sanding machine and applying two coats of Acrylic washable Distemper by using auto roller/airless sprayer, over a coat of alkali resistant primer over Suitable thickness of Cement based Wall Care Putty on walls by using multipurpose mixture for proper mixing of putty and putty sprayer for application of putty including rubbing with sand paper to obtain a smooth surface and making good any undulations on the surfaces complete all as specified and as directed. Note:- The contractor shall carryout Distempering & allied works under subject work through the Authorised Applicator of the manufacturer only. The lowest bidder shall submit MoU from manufacturer to provide technical support and trained persons for carrying out Distempering & allied works through their authorised applicators before commencement of the work to GE for approval.

M & L for Complete removal of existing treatment of any description on wall surfaces by using vaccume based sanding machine, removal of nails and applying suitable thickness of Cement based Wall Care Putty on walls by using multipurpose mixture for proper mixing of putty and putty sprayer for application of putty including rubbing with sand paper to obtain a smooth surface and making good any undulations on the surfaces and applying two coats of Acrylic Washable Distemper by using auto roller/ airless sprayer over one of alkali resistant primer on wall surfaces complete all as specified and as directed. Note:- The contractor shall carryout Distempering & allied works under subject work through the Authorised Applicator of the manufacturer only. The lowest bidder shall submit MoU from manufacturer to provide technical support and trained persons for carrying out Distempering & allied works through their authorised applicators before commencement of the work to GE for approval.

M & L for preparing newly plastered Ceiling surfaces and applying three coats of white washing complete all as specified and as directed.

Demolition of Unreinforced Cement Concrete in ground floors and Pavings not exceeding 15cm thick [below or above ground level] complete all as specified and as directed.

M & L for 100 mm thick PCC 1:2:4, Type B-2, using 40 mm graded stone aggregate as in flooring/hardstanding etc complete all as specified and as directed.

S & F for Exposed metal frame ceiling with Calcium Silicate board made out of 6mm thick, 600 x 600 mm size board of siliceous and calcareous material reinforced with cellulose fibre fixed to the ceiling section with 25 mm long self drilling and tapping screws having Phillips head with under head cutter at 200 mm centre to centre, including finishing the joint of face board with specially formulated jointing compound and 48 mm wide fibre tape to provide seam less finish and applying two or more coats of Cement based Wall Care Putty including rubbing with sand paper to obtain a smooth surface and making good any undulations on the surfaces and applying two coats of Acrylic Washable Distemper over a coat of alkali resistant primer and including Frame Work using GI perimeter channels of 0.55 mm thick, having one flange of 20 mm and another flange of 30 mm and web of 27 mm along the perimeter of the ceiling, fixed to wall with nylon sleeves and screws at 450 mm intervals, GI intermediate channels of size 45 mm X 15 mm X 0.90 mm supported with GI ceiling angles of size 25 mm X 10 mm X 0.55 mm fixed to soffits with steel expansion fasteners / GI cleats at 1220 mm intervals, ceiling section of 0.55 mm thick having knurled web of 51.5 mm and two flanges of 26 mm each with lips of 10.5 mm fixed to intermediate channel with connecting clips and in direction perpendicular to the intermediate channels at 457 mm centre to centre including Dismantling of Wall & Ceiling Boards [Fibre / Pulp / Insulation etc] of any description or Insulation Boards / Slabs / Blankets including cover fillets complete all as specified and as directed.

S & F Solid PVC Wall Lining consisting of 5mm thick wood grain colour PVC sheet inclusive of solvent cement and fixing at site on PVC frame as per specifications complete all as specified and directed.

S & F 5mm thick PVC sheet fillet of width 35mm for wall paneling inclusive of fixing on to wall to make PVC Frame complete all as specified and directed.

S & F pre-painted Galvalume steel sheets of Trapezoidal profile having pitch 190mm, depth 29mm or Tiled Profile and thickness 0.50mm [Galvalume base-PPGL trapezoidal profile sheets], having tensile strength of 550 Mpa, fixed with aluminium self tapping screws, neoprene and EPDM washers of suitable size in roof covering including dimantling of existing plain or corrugated steel sheeting of any gauge ,thickness including Nainital or similar pattern roof covering complete all as specified and as directed. Note: Overlap shall be provided as specified by the manufacturer.

S & F pre-painted Galvalume steel Plain Sheets and thickness 0.50mm [Galvalume base-PPGL Sheets], having tensile strength of 550 Mpa, in ridges, hips, valley gutters, drip and straight flashing cut to length & bent to shape, girth sheets fixed with aluminium self tapping screws and neoprene and EPDM washers of suitable size in roof covering / cladding / eves trim / rake trim and closure trim / valley rain water gutter/ down spouts and top rafters etc. including dimantling of existing plain or corrugated steel sheeting of any gauge ,thickness including Nainital or similar pattern roof covering complete all as specified.

S & F Rolled Mild Steel work conforming to Fe 410-W, Grade-E- 250, Quality-A as in Roof Trusses [framed], trussed, purlins, crane gantries, rails and fastenings and heavy bracket framing [Beam, tee, angle, channel or flat sections] including distance pieces, cleats etc complete all as specified and as directed.

S & F Rolled Mild Steel work conforming to Fe 410-W, Grade-E- 250, Quality-A as in Main and Cross Beams, 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 etc complete all as specified and as directed.

S & F Mild steel bottom rollers of dia 120mm to 150mm with ball bearing shaft, plates suitable to take weight 04 to 05 ton of hanger doors complete all as specified and as directed.

S & F Mild steel top rollers of dia 50mm to 75mm with ball bearing shaft, plates suitable to hanger doors complete all as specified and as directed.

M & L for two coats of Synthetic Enamel paint over one coat of Red Oxide / Zinc Chrome Primer on new steel surfaces over 10cm width or girth including preparation of surfaces complete all as specified and as directed.

M & L for One coat of synthetic enamel paint on old painted steel surfaces of any description not other wise described over 10 cm width or girth incuding necessary preparation of surfaces complete all as specified and directed.

M & L for One coat of Aluminium paint on old painted steel surfaces of any description not other wise described over 10 cm width or girth incuding necessary preparation of surfaces complete all as specified and directed.

M & L for two coats of Aluminium paint over one coat of aluminium Red Oxide on new steel surfaces over 10cm width or girth including preparation of surfaces complete all as specified and as directed.

S & F Flate iron of size 40mmx6mm as in wind ties conforming to FE-290, Grade E-165 complete all as specified and as directed.

Dismantling of Structural Steel work including Doors, Gates etc but excluding framed trusses complete all as specified and as directed.

M & L for rendering to brick / concrete surfaces, 15 mm thick in Cement Mortar 1:4, including mixing water proofing compound as per manufacturers instructions and finishing the top surface even and smooth without using extra cement complete all as specified and as directed. Note: The rate quoted shall be deemed to include cost of Water proofing compound and nothing shall be paid extra on this account.

Note:- [i] Tenderers to note that scope of work under some of the above items shall be executed in the buildings of varying heights upto 15m. Provision of necessary scaffolding & ensuring safety measures as directed by the GE are deemed to be included in the unit rates quoted by the Contractor. Quoted rates are also include for Washing floors, cleaning glass, joinery, etc. of drops and splashes and leaving premise, clean and tidy. Tenderers are advised to visit the site of work prior to submit their bid online. No extra claim whatsoever on account of height of buildings is admissible at later stage. [ii] All the debris obtained from demolition / dismantling and taking down shall be removed from the site and disposed out side MD land upto a distance of 15 Km. Tenderers quoted rates under relevant items are deemed to include for this aspect also and nothing extra shall be paid in this regard.

CHAITANYA CONSTRUCTIONS (BID ID -3472275)

venkata sai constructions (BID ID -3472726)

S.S.TRADERS (BID ID -3471379)

CHAMUNDESWARI ENTERPRISES (BID ID -3477938)