COMPREHENSIVE STRUCTURAL REPAIRS TO RCC BEAMS, COLUMNS, CHAJJAS, PARAPET WALLS AND OTHER MISC REPAIRS TO HIGH RISE BUILDINGS UNDER AGE BR II OF GE ND VISAKHAPATNAM

Amount

M&L for dismantling and taking down existing loose/ spalling/ unsound/ weaken concrete, unserviceable plaster from RCC components of any description and in any position until sound cocncrete substrate is obtained by chisel and hammer or using robust pneumatic chisel, hand tools including cutting of all edges, making square shoulders of the aperture, coarsen the smooth surfaces including necesary preparation of surfaces and cleaning the surface free from dust and debris etc. to ensure maximum bonding between the substrate and coating system including removing of all debris to a distance exceeding 1.5 Km but not exc. 5 Km complete all as per manufacturer's instructions, as specified and as directed.

M&L for 20mm average thick corrosion resistant, non shrinkable, rheoplastic, high strength cementitious micro concrete [BS 66 MuCis of THERMAX or equivalent chemical in makes specified herein after in Particular Specifications] mixed and applied on RCC surfaces such as Beams/ Slabs/ Chajjas/ Facias etc. to achive compressive strength - 65 N/mm2 @ 28 days, Tensile strength 2.0 N/mm2 @ 28 days, Flextural strength 10N/sqmm @ 28 days as per BS 4551, Young's modulus - 25 KN/mm2 as per ASTM D 469 complete all as per manufacturer's instructions, as specified and as directed.

M&L for 40mm average thick corrosion resistant, non shrinkable, rheoplastic, high strength cementitious micro concrete [BS 66 MuCis of THERMAX or equivalent chemical in makes specified herein after in Particular Specifications] mixed and applied on RCC surfaces such as Beams/ Slabs/ Chajjas/ Facias etc. to achive compressive strength - 65 N/mm2 @ 28 days, Tensile strength 2.0 N/mm2 @ 28 days, Flextural strength 10N/sqmm @ 28 days as per BS 4551, Young's modulus - 25 KN/mm2 as per ASTM D 469 complete all as per manufacturer's instructions, as specified and as directed.

M&L for cleaning the existing rusted reinforcement bars with wire brush/rotary wire brush to make surface free from rust scales, loose material, dirt, etc. including providing and applying two coats of alkaline rust converting primer [Maxcure RR of THERMAX or equivalent chemical in makes specified herein after in Particular Specifications] with brush and complete wetting of rusted metal surface and allowed to react for 16-24 hours to form a protective white layer which will protect further corrosion of metal / steel for about 5-7 days complete all as per manufacturer's instructions, as specified and as directed.

M&L for corrosion resistant, non shrinkable, rheoplastic, high strength cementitious micro concrete [BS 66 MuCis of THERMAX or equivalent chemical in makes specified herein after in Particular Specifications] provided where the thickness required is 50mm and above and 40% cross-section area of structure is under distress, with addition of 10mm down aggregates of 25% of the weight of mix ready to use powder with water- powder ratio of 0.18, mixed and applied on RCC members such as Beams/ Slabs/ Chajjas/ Facias etc. including filling convoluted voids, with to achive compressive strength 20 N/ mm2 in one day and 65 N/mm2 @ 28 days, Tensile strength 2.0 N/mm2 @ 28 days, Flextural strength 10N/sqmm @ 28 days as per BS 4551, Young's modulus - 25 KN/mm2 as per ASTM D 469 complete all as per manufacturer's instructions, as specified and as directed.

M&L for cutting “V” groove along the existing cracks on RCC walls/ ceilings/ columns/ beams/ floor/ bricks to a size not less than 10mm wide and 30mm deep or upto the extent of crack using electricity operated angle grinder with diamond concrete saw blade and cleaning the cut surfaces by air blower including sealing the cut portion with solvent free, three component compound, Epoxy resin based putty, based on epoxy resins, graded fillers and thixotropic agents with adjustable consistency [Maxtreat EPG of Thermax or equivalent chemical in makes specified herein after in Particular Specifications ], mixed and applied/ filled directly into cracks, blow holes, etc. complete all as per manufacturer's instructions, as specified and as directed.

M&L for water proofing treatment to existing damaged sunken floor surfaces by drilling Holes of 20mm dia up to 75 mm deep in reinforced cement concrete structural members at an interval of not more than 500 mm c/c in staggered manner or along the crack lines including cleaning of the holes by air blower and inserting PVC nozzles with fast setting mortar and covering with renderoc plug to ensure complete sealing and allowed for curing for minimum 8 Hrs before Grouting including injection grouting with hydrogen free expanding and plasticising additive [Maxgrout 100 of Thermax/ or equivalent chemical in makes specified herein after in Particular Specifications] including removing the nozzle projections, excess putty, if any, over concrete members and grinding, leveling and finishing the external surfaces after completion of the work etc. complete all as per manufacturer's instructructions, as specified and as directed.

M&L for providing 20 mm thick single component chloride free thixotropic fibre reinforced polymer modified repair mortar with alkali resistant synthetic fibres [BS 5F of Thermax / ] having specific gravity of 1.025 to 1.04, minimum 43% solid contents as per BS 6319 applied on RCC surfaces like Beam/ column, slab, etc. in any position with flexural strength of 7 N/mm2 @ 7 days meeting as per ASTM C 348 , tensile strength @ 7days > 3 N/mm2 as per ASTM C 307, compressive strength of 45 Mpa @ 28 days, Adhesion bond strength > 2 N/mm2, Creep Strain Reduction - 10% including necessary mixing of cement and sand for achieving required finish complete all as per manufacturer's instructructions, as specified and as directed.

M&L for providing 10 mm thick single component chloride free thixotropic fibre reinforced polymer modified repair mortar with alkali resistant synthetic fibres [BS 5F of Thermax or equivalent chemical in makes specified herein after in Particular Specifications] having specific gravity of 1.025 to 1.04, minimum 43% solid contents as per BS 6319 applied on RCC surfaces like Beam/ column, slab, etc. in any position with flexural strength of 7 N/mm2 @ 7 days meeting as per ASTM C 348 , tensile strength @ 7days > 3 N/mm2 as per ASTM C 307, compressive strength of 45 Mpa @ 28 days, Adhesion bond strength > 2 N/mm2, Creep Strain Reduction - 10% including necessary mixing of cement and sand for achieving required finish complete all as per manufacturer's instructructions, as specified and as directed.

M&L for treating the existing pipe penetrations using free flowing, high strength, non-shrink, cementitious precision grout [Maxgrout 60 of Thermax Ltd. or equivalent chemical in makes specified herein after in Particular Specifications] with blend of Portland cement, graded fillers and chemical additives which impart controlled expansion in the plastic statemixed and applied to achieve compressive strength of 60 N/mm2 at 28 days, flexural strength of 9 N/mm2 @ 28 days, pullout bond strength of 15 N/mm 2 @ 28 days, fresh wet density of the mixed grout 2225 kg/m3, young's modulus of 28 kN/mm2, including flashing the area using solvent based UV resistant polyurethane based waterproofing material having minimum tensile strength on 4 N/mm2 and minimum elongation of 800% complete all as per manufacturer's instructructions, as specified and as directed.

NOTES FOR SERIAL ITEM No. 01 TO 10: [a] The rate quoted for respective items shall be deemed to be inclusive of all material, labour, expert supervision, Tools, Plant, Safety measures like safety belts, ropes, helmets, netting etc. required to work upto G+ 3 floor height as per site requirement and providing double scaffolding and as required and removal of the same on completion of the repairs and disposal and depositing the demolished material outside MD land complete all as specified and as directed. [b] The Structural repair works shall be got executed directly by the Manufacturer or through their authorised applicator. The contractor shall obtain a written guarantee for the effectiveness of the structural repairs carried out to the Buildings from the manufacturer and shall be submitted to GE for record before claiming payment. The manufacturer shall also certify that the structural repairs to the Buildings have been carried out as per the standard engineering practices and also certify the strength and serviceability of the Buildings. [c] The rates quoted shall be deemed to include all necessary form work required for providing concrete/ mortar for rebuilding the damaged RCC members.

M & L for Roughening surfaces of old roof concrete 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, priming the surface with a coat of cold applied bituminous primer @ 0.50 KG per Sq.m, applying a coat of Blown Bitumen of grade 85/25 @ 1.2 Kg per Sq.m, 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 a coat of bituminous aluminium paint @ 100 grams per Sq.m on top for water proofing treatment complete including taking down existing Roof Treatment of any description and removing rubbish to a distance exceeding 1.5 KM but not exceeding 5.0 KM complete all as per manufacturer's instructructions, as specified and as directed. Note: Water proofing compound will be measured and paid separately.

M & L for providing 1.5mm thick APP modified Non-Woven Polyester based membrane with release film [TARFELT APP of STP limited or equivalent membrane in makes specified herein after in Particular Specifications], self adhesive type, conforming to ASTM D 5147 and relevant standards with Softening Point- 145 - 150 °C as per ASTM D 36 / IS 1205, Penetration 15 ± 5 dmm as per ASTM D 5 / IS 1203, Heat Resistance - no flow for 2 hrs @ 120°C as per IS 13826 - Part 5, Cold flexibility - Does not crack at +2°C as per ASTM D - 5147, Elongation 30 - 40% as per ASTM D - 5147, Tensile Strength longitudinal 250- 275 Sq.cm. & Transverse - 120-135 Sq.cm. as per ASTM D - 5147, fixed on Galvalume roofing sheets including necessary preparation of surfaces by removing scales, dirt, loose particles, etc. and cleaning the surfaces to receive the membrane including necessary testing all as per manufacturer’s instructions, as specified and as directed.

Demolition of Reinforced Cement Concrete of any description and in any position not otherwise specifically provided for and removing rubbish to a distance exceeding 1.5 KM and not exceeding 5 KM complete all as specified and as directed.

Demolition of Plain Cement Concrete in ground floors and Pavings not exceeding 15cm thick [below or above ground level] and removing rubbish to a distance exceeding 1.5 KM and not exceeding 5.00 KM 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.

Taking down Cement Plaster of any description on brick or stone walls or concrete surfaces etc including raking out joints, hacking for key scrubbing down with water etc and removing rubbish to a distance not exceeding 1.5 KM complete all as specified and as directed.

M & L for RCC 1:1½:3, Type A-1, using 20mm graded stone aggregate as in Slabs supported on walls, beams, columns, landings, shelves and the like complete all as specified and as directed.

M & L for RCC 1:1½:3, Type A-1, using 20mm graded stone aggregate as in Beams, cantilevers, bressummers,parapets, columns, lintels over 1.5m span etc complete all as specified and as directed.

M & L for 100 mm thick PCC 1:2:4, Type B-1, using 20 mm graded stone aggregate as in hardstanding complete including finishing the surfaces even and smooth and making impressions of expanded metal while the Concrete is green 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] for fair finished surfaces of concrete complete all as specified and directed.

Use and removal of steel formwork to sides and soffits of floor or roof beams, beam launchings, girders, bressummers, lintels, cantilevers, shelves including supports, overhangs, etc, splays between floors and beams and similar works for rough finished surfaces of concrete complete all as specified and as directed.

S & F Reinforcement using High Strength Corrosion Resistant Deformed TMT Bars of Grade Fe–500D of 10mm dia and over, 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.

S & F Reinforcement using High Strength Corrosion Resistant Deformed TMT Bars of Grade Fe–500D of 6mm to 8mm dia, 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.

S & F Reinforcement using High Strength Corrosion Resistant Deformed TMT Bars of Grade Fe–500D of 5mm to 10mm dia bars as in stirrups, spacers and binders, 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.

S & F Mild Steel Flat iron of size 50x6 mm conforming to Fe 290-W, Grade-E- 165, Quality-A, as in wind ties for roof including securing bolts complete all as specified and as directed.

M&L for welded MS wire mesh of size 50mmX50mm of 2.6mm dia, provided on the prepared surface, fixed with tinned tacks or securing with clips or welded to steel members, etc. complete all as specified and directed.

M & L for Running Welding in repairs including preparation of surfaces to be welded and thickness of metal welded exceeding 6mm and not exceeding 9mm complete all as specified and as directed.

M & L for Running Welding in repairs including preparation of surfaces to be welded and thickness of metal welded exceeding 9mm and not exceeding 20mm 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 to brick / concrete surfaces, 15 mm thick in Cement Mortar 1:4, mixed with approved integral water proofing compound as per manufacturers instructions and finishing the surface even and smooth without using extra cement complete all as specified and as directed. Note: Water proofing compound will be measured and paid separately.

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.

Supply only Liquid water proofing compound [ISI marked] of approved make.

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 two coats of Acrylic Washable Distemper by using auto roller/ airless sprayer over one coat of alkali resistant primer on wall surfaces over 1mm thick 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 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 on ceiling over 1mm thick 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 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 Prime rover 1mm thick 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 Two coats of Weather Proof Exterior Emulsion Paint [100% Acrylic] by using auto roller/ airless sprayer over a Coat of Exterior Primer over 1mm thick 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 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 wooden 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 over 10cm width or girth including preparation of surfaces complete all as specified and as directed.

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

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

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

S & F Calcium Silicate False Ceiling at all heights in true horizontal level made out of Calcium Silicate Tiles of size 595 X 595 mm, having Integral densified reinforced edges of 15mm thickness all around with a collar of width 24mm and 10mm thickness at the centre of siliceous and calcareous material reinforced with cellulose fibre of approved texture, design and patterns, suspended on the Exposed Metal Frame Ceiling Grid of 600mm x 600mm size and applying two coat of plastic emulsion paint and including suspended Exposed Inter-locking Metal Frame Work using GI Main "T" Runner of size 24x38mm, 0.33mm thick, spaced 1200mm centre to centre, Cross "T" of size 24X32mm, 0.33mm thick, 1200 mm long spaced between Main "T" at 600 mm centre to centre to form a grid of 1200X600 mm and secondary Cross "T" of 600mm long and of size 24X32mm, 0.33mm thick of the 1200x600mm panel to form grid of size 600x600mm, resting on periphery walls / partitions on GI Perimeter Wall Angle of size 24X24X3000 mm, 0.40 mm thick with the help of rawl plugs at 230mm centre to centre with 40mm long dry wall SS Screws including cutting/making opening for services like diffusers, grills, light fittings, smoke detectors etc., wherever required. Main "T" Runners shall be suspended from ceiling using galvanised mild steel [Galvanizing @ 80 Grams per Sq.m] 50 mm long, 8 mm outer diameter M-6 Dash Fasteners, 6 mm dia fully threaded hanger rod up to 1000 mm length and L-Shape level adjuster of size 85x25x25x2 mm, spaced at 1200mm centre to centre along Main "T". Bottom exposed width of 25 mm of all sections shall be pre-painted with polyester baked paint at all heights complete all as specified and as directed.

S & F Solid PVC Wall Lining consisting of 5mm thick wood grain printed PVC sheet inclusive of solvent cement and fixing at site on PVC frame as per specifications & drawing shown on Serial Page No. 162 of MES Schedule Part - II 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.

Dismantling of Plain or Corrugated Steel sheeting of any gauge, thickness of roof in roof coverings, complete all as specified and as 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 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. complete all as specified.

S & F 1.0mm thick Plain, Galvanised, Mild Steel sheeting, in ridges, hips, valley gutters, drip and straight flashings [length and girth as required at site in single piece] with grade of Zinc coating 275 GSM fixed with aluminium self tapping screws, neoprene and EPDM washers of suitable size 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 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 120 mm to 150 mm with ball bearing ,shaft and plate suitable to take weight 04 to 05 ton of hanger doors complete and fixed in position complete all as specified and as directed.

S & F Mild Steel Top rollers of dia 50 mm to 75 mm with ball bearing ,shaft and plate suitable to hanger doors complete and fixed in position complete all as specified and as directed.

Note: The works shall be required to be carried out up to G+3 Storey height and the rates quoted are deemed to be including providing double scaffolding and removal of the same on completion of work and all necessary safety measures as required at site complete all as specified and as directed. Nothing shall be paid extra on this account.

bholanath bera (BID ID -3060142)

SUPREET CONSTRUCTIONS (BID ID -3059031)

V R K CONSTRUCTIONS (BID ID -3068968)

D P R ASSOCIATES (BID ID -3060228)

RAGHU RAMA PANDA (BID ID -3065271)

MERIDIAN CONSTRUCTIONS PRIVATE LIMITED (BID ID -3060280)