Bhabha Atomic Research Centre Tender

Providing and laying in position Reinforced Cement Concrete (RCC) of grade M-30 using 20mm maximum size aggregates and crushed sand of approved quality including admixtures of approved brand and quality (plasticiser or super plasticiser) if required, including weigh batching, mechanical mixing, transporting, placing, vibrating, consolidation, finishing, curing etc. complete but excluding the cost of centering, shuttering and reinforcement complete as per specifications up to Plinth Level.

Providing and laying in position Reinforced Cement Concrete (RCC) of grade M-30 using 20mm maximum size aggregates and crushed sand of approved quality including admixtures of approved brand and quality (plasticiser or super plasticiser) if required, including weigh batching, mechanical mixing, transporting, placing, vibrating, consolidation, finishing, curing etc. complete but excluding the cost of centering, shuttering and reinforcement complete as per specifications in super structure up to 20.00 metre height. Note for items of item no. 3, 4 & 5- i)In view of limit on water-cement ratio for durability requirements, concrete admixtures (Naphthalene / Melamine based superplasticizers) can be used after taking prior approval of Engineer-in-Charge and the rates quoted for these items shall be inclusive of the cost of admixtures, trial mixes, testing (at site & at approved labs), etc. complete. ii) All projections, fins etc. in the concrete surface formed at the joints in the formwork should be ground & flush and finished at no extra cost. iii) Minimum cement content . Minimum Cement Content per Cum using (M-30:OPC:River sand-400Kg,Manufactured Sand-425Kg), (M-30:PPC:River sand-440 Kg,Manufactured Sand-465Kg)

Extra for RCC Using Ready Mix Concrete from outside project area including transporting and pumping from approved batching plants .

Providing Reinforcement Steel for reinforced cement concrete at all levels including supplying, preparation of bar bending schedules, cutting, bending, transporting, fixing, tieing in position with PVC coated with 1.6 mm dia soft drawn annealed G.I binding wire, all labour charges, cost of cover blocks in specified grade of concrete etc. complete including cost of binding wire, complete as per specifications and drawings. - Steel supplied by the contractor. - Using TMT bars of specified grades all dia bars. TMT bars to be supplied by the contractor manufactured by approved brands of BARC only Confirming to IS:1786

Providing Structural steel work in M.S Plain Plates and chequrred Plates for Embedded Parts, Trench Covers, Connection plates etc.including cutting, hoisting, fixing in position and applying a priming coat of approved zinc chromate steel primer etc.including cost of structural steel Plates, welding all labour charges etc. complete as per drawings and specifications. Using materials of approved equivalent quality/ product meeting technical parameters. All test reports to be provided along with the supply of the materials Note: 1) Structural steel required for the work shall not be supplied by the Department and the contractor has to procure the same. 2) Welding weights, connections, bolts and nuts shall not be measured for payment, but the cost of which shall be deemed to have been included in the rate. 3) All holes will be made by drilling only. Gas cutting of holes will not be permitted. Tentative/ Suggested make for electrodes: M/s. Advani Oerlikon, ESAB India, Indian Oxygen and D&HSECHERON or approved equivalent.

Providing Structural steel work using angles, channels, joists and other sections, welded and / or bolted in built up sections for trusses , structural steel floors, frame works, monorails and other structures including supplying, cutting, welding, fabricating, hoisting, fixing in position, applying a priming coat of approved steel primer etc. complete all as per specifications, drawings and as directed by the Engineer in charge. Up to and including 300 mm Joists, 350 mm channels, and below sections Using materials of approved equivalent quality/ product meeting technical parameters, confirming to IS 2062. All test reports to be provided along with the supply of the materials. Note: 1) Structural steel required for the work shall not be supplied by the Department and the contractor has to procure the same. 2) Welding weights, connections, bolts and nuts shall not be measured for payment, but the cost of which shall be deemed to have been included in the rate. 3) All holes will be made by drilling only. Gas cutting of holes will not be permitted.

Providing, centering, shuttering Form work using PVC film faced plywood to get a neat form finish surface for all types of structures including necessary strutting, proping, staging, supports etc and deshuttering the same after the specified time all as per drawings, specifications and as directed by the Engineer-in-charge at all levels (a)For Sub Structure

Providing, centering,shuttering Form work using PVC film faced plywood to get a neat form finish surface for all types of structures including necessary strutting, proping, staging, supports etc and deshuttering the same after the specified time all as per drawings, specifications and as directed by the Engineer-in-charge at all levels (b)For Super Structure

Providing and constructing Half brick masonry using Flyash/ Flyash Lime bricks with minimum 70 kg / Sq.cm strength of approved equivalent quality or product meeting technical specification and size in partition walls in C.M 1:4 (using crushed sand) including scaffolding, raking out joints, curing etc. complete and with stiffners of RCC 1:2:4 (105 X 75 mm size) at every 900 mm height including form work curing etc. complete as per specifications but excluding reinforcement in Super Structure up to Floor - II level. (Reinforcement will be paid under relevant item)

Providing and constructing brickwork in cement mortar 1:6 using crushed sand with Flyash/ Flyash Lime bricks with minimum 70 kg/ Sq.cm strength of approved equivalent quality or product meeting technical specification and size in super structure above plinth up to and including Floor II level including, scaffolding, raking out joints, curing, cleaning complete all as per specifications and drawings.

Providing and constructing Random Rubble masonry using approved Rubble stone in foundation and plinth in C.M 1:6 (using crushed sand) including raking out joints or simultaneous flush pointing below ground level / plinth level, curing etc. complete as per drawings and specifications.

Providing and constructing Random Rubble masonry using approved Rubble stone in super structure (above plinth) in C.M 1:6 (using crushed sand) including raking out joints or simultaneous flush pointing above ground level / plinth level and up to and including 20 m height including scaffolding, curing etc. complete as per drawings and specifications.

Providing Raised and cut pointing on stone with cement mortar 1:3 using crushed sand as per specifications and as directed at site by the Engineer-in-charge.

Providing 15 mm thick plastering using Ready mix internal plastering compound of approved equivalent quality or product meeting technical specification for internal faces of brickwork / concrete surfaces including preparation of the surface, curing, cleaning, scaffolding complete all as per specifications and as directed at site by the Engineer-in-charge

Providing 20 mm thick plastering using Ready mix external plastering compound of approved equivalent quality or product meeting technical specification for external faces of brickwork / concrete surfaces including preparation of the surface, curing, cleaning scaffolding up to 10 metres height complete.all as per specifications including forming drip moulds wherever necessary and as directed by the Engineer-in-charge

Providing and fixing G.I. chicken mesh in the junctions of concrete & brick work / masonry or as directed by the Engineer in charge including cutting, fixing with nails in position before plastering complete all as directed by the Engineer-in-charge. (only area of the chicken mesh used alone will be measured)

Supplying, stacking and laying of 230 mm thick rubble soling stones as under floor base including packing with smaller stone and compacting, ramming including spreading and consolidation of blinding material, moorum etc. complete all as per specifications and as directed by the Engineer-in-charge

Providing and fixing glazing in aluminium doors, window, ventilator shutters and partitions etc with PVC / Neoprene gasket etc. complete as per the architectural drawings and directions of the Engineer-in-charge (Cost of snap beading shall be paid in basic item) With clear float glass panes of 5.00 mm thickness

Providing and fixing powder coated aluminium (Minimum thickness of powder coating 50 micron) work for doors, windows, ventilators and partitions with extruded built up standard tubular sections / Z Sections and other sections of approved equivalent quality or product meeting technical specification confirming to IS:733 and IS: 1285 fixed with rawl plugs and screws or with fixing clips or with expansion hold fastners including necessary filling up of gaps at junctions, at top, bottom and sides with required PVC / neoprene felt etc. Aluminium sections shall be smooth, rust free, straight, mitred and jointed mechanically wherever required including cleat angle, Aluminium snap beading for glazing / panelling, C.P brass / stainless screws all complete as per architectural drawings and and directions of Engineer-in-charge including providing and fixing hinges / pivots and making provision for fixing of fittings wherever required (fittings, Glazing and panelling shall be paid for separately) NOTE : 1) The rates for aluminium is inclusive of all fasteners required for fabrication and fixing in the walls. 2) All joints shall be of mittered Joints. 3) A long M.S rod threaded at both ends to be provided in all aluminium door shutters in Top & bottom Horizontal members internally connecting Vertical members and fixed with M.S washers & nuts. 4) Only Aluminium members alone shall be measured and paid for.

Providing and Fixing in position Aluminium chequered plates of 4 mm thick for approaches over roofing sheet and other related aluminium work with 15 micron natural Aluminium colour, anodized aluminium sheets manufactured to relevant IS codes & including cost of Stainless steel screws, mastic filling, weather strips, nuts, washers etc. as required and as per drawing etc. all complete at all heights and as directed by the Engineer-in-Charge

Painting Works: Providing, applying and finishing walls with two coats of premium fine textured exerior paint of required shade over new work including base coat of water proof cement paint, preparation of the surfaces, scaffolding complete. as per specifications and as directed by the Engineer-in-charge (a)On Plain plastered / concrete sufaces

Providing and applying wall painting two coats on new work with premium plastic emulsion paint of approved brand to give an even shade, including a coat of approved cement primer, including preparation of the surfaces, scaffolding complete. as per specifications and as directed by the Engineer-in-charge

Providing and Painting two coats of synthetic enamel paint on Steel Surfaces of approved brand and manufacture to give an even shade without primer coat.including preparation of the surfaces, scaffolding complete. as per specifications and as directed by the Engineer-in-charge

Providing and painting TWO coats of synthetic enamel paint on new wooden surfaces of approved brand and manufacturer of required colour to give an even shade over an under coat of suitable shade primer of approved brand and manufacturer including preparation of the surfaces, scaffolding complete. as per specifications and as directed by the Engineer-in-charge

Providing and fixing double tubular scaffolding system using H- frames with cup lock type on the exterior side upto seven story height made with 40 mm dia M.S. tube 1.5 m centre to centre horizontal and vertical tubes joining with cup and lock system with M.S. tubes, M.S. tube challies, M.S clamps and M.S staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it thereafter. The scaffolding system shall be stiffened with bracings, runners, connection with building etc. wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and as approved by the Engineer -in - charge. The elevational area of the scaffolding shall be measured for payment purposes. The payment shall be made once irrespective of duration of scaffolding

Providing and applying white cement based wall putty of approved equivalent quality or product meeting technical specification over concrete or Plastered surface up to 3 mm thick to get uniform surface free from undulation including cleaning complete all as directed by the Engineer-in-charge

Providing , applying one coat of acrylic based textured plaster of approved equivalent quality or product meeting technical specification with the finish as directed with average thickness of 2.50 mm and finished with 2 coats of high performance coating of approved shade including preparation of the surfaces, complete. as per specifications and as directed by the Engineer-in-charge.

Providing and applying French spirit polishing for wooden sufaces with two coats on new works including a coat of wood filler to form a uniform neat finish as directed by the Engineer -in-charge and / or as per the specifications complete as directed by the Engieer-in-charge

Providing and applying white cement based wall putty over concrete or Plastered surface minimum 3 mm and up to 6 mm thick to get uniform surface free from undulation including cleaning complete all as directed at site. Tentative/Suggested make: Birla wall Care or approved equivalent.

Lead charges of debris for lead Exceeding 2 KM but not exceeding 3 KM, by mechanical transport including loading, unloading, stacking / levelling etc. Note: The rate is applicable for NET Quantities arrived at after making deduction for voids @ 30% from corresponding TRUCK Measurement.

Lead charges of soil for lead exceeding 2 KM but not exceeding 3 KM, by mechanical transport including loading, unloading, stacking / levelling etc. Note: The rate is applicable for NET Quantities arrived at after making deduction for voids @ 20% from corresponding TRUCK Measurement.

Providing and constructing Inspection chambers of Internal size clear dimension of 900 x 600 mm in 230 thick brick masonry with cement mortar 1:4 over a bed of 150 mm thick 1:4:8 cement concrete foundation, plastering with cement mortar 1:4, 20 mm thick on inside, out side and all exposed sufaces finished with a floating coat of neat cement, brick corbelling at top to provide opening of 900 X 450 mm, embedding the frame and cover with CC 1:2:4 concrete, and fixing cast iron steps if necessary at 300mm intervals complete . Depth of chamber not exceeding 900 mm. (excavation, soling, cast iron cover and C.I steps will be paid separately under relevant item)

Extra depth over initial depth of 900 mm for chambers of 900 x 600 mm internal size.including fixing cast iron steps (C.I steps shall be paid under relevant item)

Supplying and fixing Cast Iron Man hole or Cast Iron Steps cover of approved equivalent quality or product meeting technical specification and weight as specified in the drawings or as directed by the Engineer in charge.

Supplying man power along with necessary spades, shovels, punjas, ropes, small special spades, rain coats, broom, mop etc, minimum two labours per day and maximum any number of labour as and when decided by Engineer Incharge to work for eight hours per day to carry out the cleaning work, loading work etc as directed by Engineer Incharge.

Providing and Applying Putty including mixing in the proportions as specified by the manufacturer. The ingredients are mixed by stirring to get uniform paste. The prepared paste is applied over the prepared concrete surface to get even profile etc. complete (upto 2 mm)

Water Supply Works: Providing, laying , jointing, fixing and testing heavy quality (ISI Marked C-Class) Galvanised Iron pipes and ISI marked fittings like, tees, elbows, bends, unions, nipples,reducers etc. as required for the work, including testing the pipes and fittings for 10.00 Kg / Sq.Cm hydralic pressure with a minimum period of two hours duration with clean water, including cutting , threading, jointing with hemp yarn, white lead, jointing teflon tape, chasing walls and making good by filling with concrete 1:3:6, complete all as per specifications and drawings, including two coats of anti corrosive bitumastic paint, all as directed by the Engineer-in-charge. Pipes with ISI marked 'C' -Class heavy quality pipes of approved equivalent quality or product meeting technical specification.

25 mm dia G.I pipe

40 mm dia G.I pipe

50 mm dia G.I pipe

Providing and Fixing SMC Panel water storage Tank of approved equivalent quality/product meeting techncial specification as per IS 14399 made out of Hot Pressed Moulded Sheet Moulding Compound (SMC) panels of size 1m x 1m and 1m x 0.5m as per site requirement at required elevation. All the flanges of the panels should have 10 nos of holes for fastening and joining the panels to one another. Manhole should be provided on the roof of the tank with proper locking arrangemet with cover of dia 600mm. Panel should withstand hydrostatic pressure of at least 4 times the working load and should be provided with hot dip galvanized nut, bolts / washer and special sealant having exellent UV resistance as well as suitable for potable water. The roof should be supported with pvc pipe of 110mm dia at every interval. The tank should have ladders inside and outside , provision of inlet, outlet, overflow / drain and fixing necessary Nozzles / Flanges provided with tanks that are of G.I and Qty. is 1 each or as directed by EIC for Inlet /Outlet/Overflow 50mm NB & 100mm NB for outlet required length as per site conditions with double check nuts, washer etc. complete job as per directions of engineer-in-charge.

ISI Mark Prefabricated SMC Panel Tank in the size of 2mt x 1m x 1m having Capacity (2,000 Litre) including Installation of tank.

Providing and supplying minimum 30 mtrs long boom lift (duo power spider / tyre mounted, as per site requirement) having working platform with telescopic arm and working cabin for minimum 30m working height for dismantling work and other services including operator, fuel etc. complete ( rate inclusive of transportation mobilization and de-mobilization etc.) Conditions. 1. The above rates shall be inclusive of Crane, Fuel, Operator/Drivers, Helpers and other consumables etc. 2. The rates quoted shall be inclusive of all taxes, duties, levy or cess, fee, royalty charges etc. levied under any statute but exclusive of GST (Good and Services Tax). 3.Reporting time at site inside BARC shall be strictly considered for the billing/ measurement/ payment. 4. Minimum duty hours is 8 hours. Break Down Hours and Lunch break timings shall not be considered for payment. Working beyond 8 hours will be measured on pro-rata basis. 5. All the operators, drivers shall have valid and Specific Driving license and address Proof. 6. Rate shall be firm for the entire period of contract. No revision of rates shall be considered. 7. The cost of damages to any government movable/ immovable property in and around the site shall be entirely borne by the contractor. 8.With valid parking permission, crane can be parked inside BARC premises. 9. The cost of POL, maintenance / fitness / PUC (if applicable) of vehicle, wages of driver, Motor Vehicle taxes, comprehensive insurance, etc. shall be payable by the Contractor and BARC shall have no liability towards usage of the vehicle. 10. Maintenance of the vehicle including replacement of parts, fuel, etc. will be provided by the firm.

Carrying out Civil Engineering works like surveying & leveling, checking of formwork fabrication, reinforcement fabrication as per drawings, witnessing sample retrieval & testing for various construction materials, ensuring concrete ingredient ratio at batching plant and pouring of appropriate grade of concrete in plain and reinforced concrete works, ensuring proper mixing of approved ingredients & waterproofing admixtures for mortars and brickwork, plaster, flooring & waterproofing works, and other civil & PH works including supervision of construction safety as per BARC specifications & relevant documentation, compiling, binding and preparation of tender documents & Agreements overall as directed by Engineer-in-Charge. Note : (1)Each Job shall be carried out by one qualified Technician having minimum SSC or Trade certificate in Masonary/Plumber/Carpenter/Painter Trade of less than one year duration from ITI/Government Recognised Vocational Training Institute. (2)Deployment: The contractor shall deploy one Technician for each job for minimum 8 ½ hours per day with 30 minutes of break, in General (Ist / IInd) or on Round the clock shift including Saturdays, Sundays & holidays whenever necessary as per the discretion of the Engineer-in-Charge during the contract period. In case of emergency works like continuous pouring of concrete or shutdown/maintainance work, the technician will have to stay longer occasionally as per the instruction of the Engineer in-charge. No additional payment will be made on this account. (3) Period of work: The contractor shall carry out number of Jobs per month as per requirement at site for the period mentioned in NIT. (4) Mode of measurement : Measurement will be per job basis. A single job shall be carried out by deploying one Technician exclusively for the particular job. (5) The Technician should be engaged after scrutiny by EIC of CED, BARC and approved by Competent authority and the deployed Technician will report to BARC Engineer/ EIC. (6) The minimum notice period before change of technician is 1 (One) month; failing which a compensation, for not providing technical support, of Rs. 1196/- per day of shortfall in notice period will be levied on the contractor.

Retired departmental supervisor.

Any other Technician having minimum SSC or Trade certificate in Masonary/Plumber/Carpenter/Painter Trade of less than one year duration from ITI/Government Recognised Vocational Training Institute.

Carrying out Civil Engineering works like surveying & leveling, checking of formwork fabrication, reinforcement fabrication as per drawings, witnessing sample retrieval & testing for various construction materials, ensuring concrete ingredient ratio at batching plant and pouring of appropriate grade of concrete in plain and reinforced concrete works, ensuring proper mixing of approved ingredients & waterproofing admixtures for mortars and brickwork, plaster, flooring & waterproofing works, and other civil & PH works including supervision of construction safety as per BARC specifications & relevant documentation, compiling, binding and preparation of tender documents & Agreements overall as directed by Engineer-in-Charge. Note : (1)Each Job shall be carried out by one qualified Degree holder with 2 (Two ) years experience/Diploma holder with 5(Five) years experience (Licentiate in Civil/Construction Engineering / Technology) conducted by Board of Technical Examinations / University/ Autonomous Govt / Govt recognized Polytechnic/ Institute. (2)Deployment: The contractor shall deploy one Engineer for each job for minimum 26 working days per month for minimum 8 ½ hours per day with 30 minutes of break, in General (Ist / IInd) or on Round the clock shift including Saturdays, Sundays & holidays whenever necessary as per the discretion of the Engineer-in-Charge during the contract period. In case of emergency works like continuous pouring of concrete or shutdown/maintainance work, the person will have to stay longer occasionally as per the instruction of the Engineer in-charge. No additional payment will be made on this account.(3) Period of work: The contractor shall carry out number of Jobs per month as per requirement at site for the period mentioned in NIT.(4) Mode of measurement : Measurement will be per job basis. A single job shall be carried out by deploying one engineer exclusively for the particular job.(5) Engineer should be engaged after scrutiny by EIC of CED, BARC and approved by Competent authority and the deployed Engineer will report to BARC Engineer/ EIC. (6) The minimum notice period before change of engineer is 1 (one) month; failing which a compensation, for not providing technical support, of Rs. 1,623/- per day of shortfall in notice period will be levied on the contractor.

Providing and applying cold liquid Polyurethane waterproofing system having following layers: (a) Primer / base coat: Providing and applying (Pre-Measured Packed) silver grey coloured 2 (two) component solvent free, odourless, Epoxy-based Primer with excellent adhesive property on the clean and grinded surface/substrate. The substrate can be slightly moist (in concrete, the moisture must be less than 20 %), sound and free from any material that would hinder good adhesion. Mix component 'A' into component 'B' in ratio of 1: 0.16 by weight thoroughly with a clean stirring stick. The mixture should be of uniform colour & free from streaks and be applied evenly with roller. The primer should be completely dry for further application of liquid applied polyurethane based membrane/ coating. The consumption, depending on the nature and condition of the substrate for priming, should be within the range of 250 – 400 gm/sq.m. The rate shall including cost of all material, labour, tools & plants, consumables etc. complete all as directed by EIC. (b) Top coat: Providing and applying cold liquid applied waterproofing based on highly flexible solvent free single component Polyurethane system and special needle punched non woven, system compatible polyester fleece of minimum 120 GSM as reinforcement. The cold liquid applied reinforced system shall have high crack bridging property and shall be UV stable, solvent-free, Cool Roof system. Application procedure: (i) Stir the material well before use. (ii) 2/3rd of the waterproofing mix material to be applied on the primed substrate and the special polyester fleece of min. 120 gsm to be rolled with roller including removal of air bubbles with an overlap of min. 5 cm. (iii) The remaining 1/3rd of the waterproofing material to be poured onto the surface until complete saturation is achieved. The layers should be applied on wet surface of earlier coat and there should not be any time lag during the laying of the system. (iv) After curing, one coat of material approx. 300g/sq.m. to be applied after 24 hours. (v) The total system of waterproofing for material and components shall be procured from single manufacturer. (vi) The total thickness achieved from the application should be from 1.4 to 1.7 mm. (vii) The total consumption of mix waterproofing depending on the nature, porosity and condition of the substrate should be in the range of 2.3 to 2.7 kg/sq.m. The rate shall including cost of all material, labour, tools & plants, consumables etc. complete all as directed by EIC. Specifications/Technical Parameters: The tensile strength of the membrane shall be min. 8.60 N/sq.mm and Elongation at break with fleece shall be min. 83.0 % (with fleece). The Tear Resistance of the membrane shall be min. 41.0 N/mm, Solar Reflection Index (SRI) Value of membrane shall be min. 100, Degree of solar reflectance of the membrane shall be min. 85% and adhesive strength shall be min. 2.40 N/sq.mm. etc. Note : The contractor shall provide min. 10 (ten) years Leak Proof Performance warranty for the complete waterproofing work. Tentative / suggested make for the guidance of bidder(s): Kemperol 1K system of M/s Kemper System Pvt. Ltd. or equivalent .

Providing & Applying polymer modified, liquid applied, crack bridging, elastic, 2 pack acrylic polymer modified cementitious water-proofing coating system on concrete /plastered wall surfaces. The waterproofing chemical shall have Tensile strength of not less than 2 N/mm2 , Elongation not less than 35%. The substrate must be prepared by suitable mechanical preparation techniques such as high pressure water jetting, needle guns, blast cleaning etc. and properly pre-wetted to a saturated surface dry (SSD) condition. Blast clean to remove all contaminants within pores /blowholes.Mixing of Mortar shall be carried out as per Manufacturers specification using slow speed paddle mixer (500- 600 rpm).Subsequently,application of mortar and Curing shall be carried out as per Manufacturer's specifications all as per the directions of the Engineer -in Charge at all levels and locations complete. Note: Scaffolding will be measured and paid under relevant item.

Providing structural repairs in old damaged concrete structures / surfaces with approved Polymer with following operations 1) Removal of loose/Spalled or damaged concrete by chipping and cleaning the concrete surface and reinforcement steel with wire brush and with water 2) Cleaning the re bars with Acetone for complete rust removal and washing with water to make the surface clean. 3) Applying protective coat / bond coat using polymer and cement in the proportion of 1; 1.5 (1 part of polymer and 1.5 parts of cement in synthetic enamal paint like consistancy with brush 4) Reinstate the area with polymer modified mortar in layers of maximum 20 mm with the proportion of Cement 50 Kg : washed and dried river sand 87.50 kg ; silica sand 37.50 Kg. mixed with 10 litres of Polymer (or 1 Kg cement : 1.75 kg washed and dried river sand ; 0.75 Kg silica sand : 200 ml polymer) 5) If thickness of repair exceeds 20mm , after every 20 mm thick repair, bond coat as per 2 above to be applied and further thick of repair to be continued for each layer. This work is inclusive of all materials, labour, complete all as directed at site using approved polymer suitable for structural repair shall be used). Note: Scaffolding will be paid separately under relevant item

Repairs to the RCC structural members of concrete surface/RCC brackets with form finish, concrete finish using Super Fluid Micro Concrete general purpose approved grout powder using approved SFMC. Item includes the operations of breaking cracked/spalled concrete members along the cracks and taking down the debris to ground level and stacking/ disposing of debris with in a lead of 50 mtr as directed ,exposing and cleaning the reinforcement bars thoroughly by tapping wire brushing emery papering and finally by chemicals such as acetone or eqvt.and washing the surface by waterjet to remove acetone and brushing subsequently and applying a protective coat of polymer and cement mixed in the ratio of 1:1.5 (1 polymer : 1.5 cement ) by volume to the reinforcement bars and casting /grouting with Super Fluid Micro Concrete in the proportion of grout and aggregate of quartz/granite rounded chips of size 6 mm down graded or eqvt in the ratio of 1 powder: 0.50 aggregate by weight (100 kg SFMC: 50 kg Quartzchips) including cost of double steel scaffolding and required Form work and removal of same (Only form work will be paid under relevant items) after grouting curing etc. complete all as per specification and as directed by Engineer- In-charge. Note: 1. Mode of measurement shall be in kg of SFMC powder consumed only. 2. SFMC powder will be supplied by Contractor. 3. Protective coat to reinforcement and bond coat over adjacent concrete surface are included in the item. 4. Reinforcement and Formwork for Jacketing shall be measured and paid under relevant item. 5. Fixing Weld mesh if required and same will be measured and paid under relevant item. Tentative/Suggested make/model for SFMC: Roffe concrete repair or approved equivalent .

Providing SFMC Micro concrete for strengthening of structural members including mixing, pouring, curing as per manufacturer specifications and as directed by the Engineer-in-charge Using 100% SFMC

Providing and repairing to external plastering in cement mortar 1:4 (using crushed sand) of thickness 12 mm to 20 mm in patches of area up to 2.5 sq metres including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls ncluding admixtured with approved Water proofing compound @ 2% by weight of cement used and as per manufacturer's specifications ,sieving of sand to required fineness complete including disposal of rubbish to the dumping ground within 50 metres lead

Strengthening and upgradation of concrete structures with min. 300 GSM unidirectional carbon fibre wrapping sheet of approved equivalent quality or product meeting technical specification with epoxy treatment including surface preparation i.e. Smoothening of surface, priming the substrate using approved Epoxy Primer applied by roller/brush, followed by application of approved epoxy saturant over the tack free primed surface. Carbon Fabric shall be completely impregnated in two coats of approved epoxy saturant, wrapped over the concrete structure at desired orientation using tamping rollers to avoid any air voids etc. and sprinkling quartz sand in the last layer of the saturant, making coving the corners of beam and slab junction rounded with the approved epoxy putty with a radius of min. 25 mm and Carbon Fibre anchors etc. as per detailed technical specifications and and as directed by the Engineer in charge. Note: 1. Refer Detailed Technical Specifications. 2. The measurement of coving and carbon fibre anchors will be paid separately under relevant item(s).

Making coving the corners of beam and slab junction rounded with the epoxy putty with a radius of 25 mm minimum

Demarking the locations of Carbon Fibre anchors on the newly wrapped RCC surfaces with proper spacing, drilling 10-12 mm dia and 75 to 100 mm deep holes, saturating the fixed end of Carbon Fibre anchor with epoxy resin and inserting anchors in the holes, spreading and pasting the 8 Carbon Fibre petals of anchor over the FRP with saturant, finishing, levelling with roller, etc. complete.

Providing and fixing post-installed chemical anchors using reinforcement bar of various sizes( from 8mm to 40mm dia.) of high load carrying capacity using injection grout system including transporting the materials, drilling holes by rotary hammer drill/ core cutting, dust removing/cleaning the drill holes, batching, mixing of resin and hardener, inserting & anchoring rebars of specified diameter in existing concrete surfaces using resin based anchoring grout with minimum drilling depth of 10 times diameter of the reinforcement steel all complete as directed by EIC. Note: 1. Steel rebars shall be paid separately under relevant item. 2. Tentative/Suggested make for injection grout system: HIT-RE 500 V4 injection mortar of M/s Hilti or Lokfix E77 of M/s Fosroc or approved equivalent (a) For 10mm dia.

Providing and fixing post-installed chemical anchors using reinforcement bar of various sizes( from 8mm to 40mm dia.) of high load carrying capacity using injection grout system including transporting the materials, drilling holes by rotary hammer drill/ core cutting, dust removing/cleaning the drill holes, batching, mixing of resin and hardener, inserting & anchoring rebars of specified diameter in existing concrete surfaces using resin based anchoring grout with minimum drilling depth of 10 times diameter of the reinforcement steel all complete as directed by EIC. Note: 1. Steel rebars shall be paid separately under relevant item. 2. Tentative/Suggested make for injection grout system: HIT-RE 500 V4 injection mortar of M/s Hilti or Lokfix E77 of M/s Fosroc or approved equivalent (b)For 12mm dia.

Designing and optimization of Carbon Fiber Reinforced Polymer (CFRP) based on ACI 440 2R17 and the existing design data for restoration and strengthening of Columns, including finding appropriate sizes and numbers of Carbon Fibre Wraps for Column and submission of report. Quoted rates shall be inclusive of cost of designing from structural expert and Reports shall be vetted/ scrutinised by premium government Institutions like IIT/NIT/VJTI or any Government Engineering college.

Carbon Fiber Reinforced Polymer (CFRP) Strenghening: Surface Cleaning of existing concrete carefully by Grinder without damaging the existing concrete including cleaning the surfaces by Blower etc. complete.

Providing and Applying 100% solvent-free, mixed density 1.1 kg/ltr, Flexural Strength conforming to IS 4456 (Part 1) not less than 50 MPa, Low viscosity epoxy resin as a priming compound, Bond strength conforming to ASTM D 4541 used for enhancing adhesion between substrate and epoxy overlay and fill in the scratches, should have high moisture tolerance such that can be used even with 6% moisture in the substrate. It should also have wide range of curing temperatures. The proportions as specified by the manufacturer. Mixing with help of a low RPM (400-500RPM) stirrer. Apply the mixture using clean brush on to the surface of the substrate.

Providing and Applying first coat of 100% Solvent free epoxy resin, mixed density of 1.8kg/lit. Flexural Strength conforming to IS 4456 (Part 1) greater than 30 MPa,Bond strength conforming to ASTM D 4541 used for saturation of CFRP Sheets, proportions as specified by the manufacturer. (Mode of measurement: Per sq.mt of CFRP sheet consumed and not surface area of application)

Carbon Fiber Reinforced Polymer(CFRP) Sheets: Providing and Application of CFRP Fabric having composite modulus of atleast 90GPa and min composite thickness of 0.9 mm. Weather resistance, pultruded CFRP Fiber with stress-strain ratio within the limit of elasticity confirming to ACI codes and tensile strength of fabric used at least 4000 MPa.Cutting the fabric to required size. Wrapping: Wrapping the fiber sheet to structural element at desired orientation using tamping roller to avoid any air voids etc. (Mode of measurement: Per sq.mt of Carbon fiber sheet consumed and not surface area of application)

Providing and Applying second coat of 100% Solvent free epoxy resin, mixed density of 1.8kg/lit. Flexural Strength conforming to IS 4456 (Part 1) greater than 30 MPa, Bond strength conforming to ASTM D 4541 used for saturation of CFRP Sheets, proportions as specified by the manufacturer. (Mode of measurement: Per sq.mt of CFRP sheet consumed and not surface area of application)

Drilling 12mm dia hole for carbon anchor 50 to 60 mm depth

Provide & fixing Carbon Fibre Anchor using Epoxy 50X55 system and spreading the anchor fibers in star pattern including application of saturant etc. complete

Providing & Applying high strength Carbon Fiber Reinforced Polymer Composite Pultruted Plates with a Tensile Strength of 2800MPa of 1.4mm thickness and 50 mm width.(Mode of measurement: Per running Mt. laminate applied ).

Providing & Applying high strength Carbon Fiber Reinforced Polymer Composite Pultruted Plates with a Tensile Strength of 2800MPa of 1.4mm thickness and 100 mm width.(Mode of measurement: Per running Mt. laminate applied ).

Providing & Applying high strength Carbon Fiber Reinforced Polymer Composite Pultruted Plates with a Tensile Strength of 2800MPa of 2.4mm thickness and 100 mm width.(Mode of measurement: Per running Mt. laminate applied ).

Providing and Fixing Non Prestressed Anchors System as per design (Size of Plate: 150mm x 170mm x 10mm)

Providing and Fixing Prestressed Anchors System as per design (Size of Plate: 220mm x 270mm x 12mm)

Sprinkling of quartz sand: Providing and applying top coat layer of quartz sand sprinkling on CFRP Sheet wrapped surface ( 17.5kg/sqm + 30% wastage) on CFRP Sheet wrapped Surface.

ANTI – CORROSIVE TREATMENT: The anti-corrosive treatment involves following steps to protect the exposed reinforcement in existing RCC. First, apply a single component Rust Converter, to the exposed reinforcement to convert traces of rust into a passive layer. After 24 hours, use a wire brush to clean the reinforcement scales. Next, install embedded galvanic anodes at 500 mm intervals to prevent anode corrosion. The alkali-activated (Type 1A) anodes are made of high-purity zinc, cast around a steel tie wire with an improved cement-based mortar that has an internal pH of 14 or higher. After cleaning and preparing the concrete surface, apply a single coat of the single-component Migrating Multifunctional Corrosion Inhibitor, at a rate of 0.25 kg per square meter. It provides anodic and cathodic protection, at interface contact of steel/concrete, and by migration: by its nature, the vapor pressure of the molecules allow migration through porous concrete to reach the internal steel reinforcement, protecting and prolonging the life of the structure . Finally, coat the exposed steel reinforcement with a single-component, cementitious corrosion-inhibiting primer, preferably in two coats, as directed by the engineer in charge. Tentative/suggested make of anode: (ZARCDefend ANODE) or approved equivalent. Tentative/suggested make of rust remover: MAXCURE® RR or approved equivalent. Tentative/suggested make of Multifunctional corrosion inhibitor :Mucis Mia 200 U or approved equivalent. Tentative/suggested make of cementitious corrosion-inhibiting primer : Mucis Protezione Ferro Mono U or approved equivalent.

Providing & applying a single component cementitious corrosion inhibiting primer which is in powder form needing only water addition at site at a w/p ratio of 0.3 (30%). It shall have a mix density in the range of 2.0-2.5 and a pot life exceeding 25 minutes. It shall have a touch dry time of 10-15 minutes and minimum adhesion Bond strength of 1MPa when tested on Standard Elctometer as per ASTM D 4541-85. It shall provide a coverage of 10-12 RM per kg for a 12 mm bar when applied at 1 mm thickness. Material should be compatible for use up to 70 degree surface / ambient temperature. The Surface area shall be measured. Tentative/Suggested make: MuCis PROTEZIONE FERRO MONO U - Thermax Ltd or approved equivalent.

Grouting with ready to use, quick- setting, water proof repair grout (free of chlorides and water soluable salts) for stoppage of water seepage and leakages by adding potable water (3 parts by-volume of grout mix with 1 part-by-volume of potable water). Grouting will be done through pre-fixed nipples with High Pressure Hand Pump, and removing the nipples after grouting the area including cost of materials, labour, equipment, tools & tackles and consumables etc. all as per manufacturer's specification and as directed by Engineer-in-charge.

Drilling Holes of 12/13mm diameter and fixing Aluminium/ PVC nipples using ready Mix High Strength Mortar. Note : Tentative / suggested make for guidance of bidder(s) : MC-Fix ST of M/s. Mc. Bauchemi or equivalent.

Grouting (only quantity of material used for grouting will be measured and paid.) Contrator shall maintain Log book for consumption of Grout / Cement duly approved by Engineer in Charge .

Providing and applying / injecting general purpose, high flow, Class A, non-shrink grout having high flowability through voids, bottom of base plate, tie rod hole and/or gap of min. 10 mm up to 100 mm, by mixing potable water, in a controlled manner by forced-action mixer, in the range of min. 2.9kg to max. 4.1kg per 20 kg bag of grout depending on the required consistency including cost of materials, labour, equipment, tools & tackles and consumables etc. all as per manufacturer's specification and as directed by Engineer-in-charge. Technical parameters: (i) Compressive strength (as per AS 1478.2) in the range of min. 60 MPa to 75 MPa at 28 days depending upon consistency of the grout mix. (ii) Flexural strength (as per AS 1012.11) min. 13 MPa at 28 days, (iii) Indirect tensile strength (as per AS 1012.10) min. 6 MPa at 28 days, (iv) setting time (as per AS 1012.18) - Initial Setting Time min. 5.5 hours and Final Setting Time max. 7.5 hours (v) Flow characteristics (as per AS 1478.2): 400-600mm (Flow Trough) and 25-30 seconds(Flow cone). Rate will be inclusive of mixing, pouring, curing as per manufacture's specification, including scaffolding, complete all as per specifications and as directed by Engineer-in-charge. Note : Tentative / suggested make for guidance of bidder(s) : Conbextra GP2 Grout of M/s FOSROC or equivalent.

Providing and fixing in position 1.2 mm thick hot dip galavanized steel deck span as sacrificial shuttering, of depths 50-55 mm , pitch 265-275 mm and m & k value as specified, tested and certified by SERC/ INSDAG and conforming to IS 277, having yield strength of 250 mpa with 120gsm, with all lappings, welding if necessary, providing holes etc., with all materials, labours, handling,taxes, transport etc. complete.

Providing and fixing Stopper /Edge flashings of material and thickness as decking sheets.

Providing and fixing 19mm dia , 90/100mm long studs with ceramic Ferrule

Providing and Laying Autoclaved Aerated cement block masonry of approved equivalent quality or product meeting technical specification with specified thick AAC Blocks in Super structure above plinth level up to 20 m height in cement mortar 1:4 (using crushed sand). The rate shall also include providing and placing in position 2 nos of 8 mm dia bars at every third course of the masonry work

Core cutting in RCC up to and including 50 mm Dia

Core cutting in RCC beyond 50 mm up to and including 100 mm Dia

Core cutting in RCC beyond 100 mm up to and including 150 mm Dia

Core cutting in RCC beyond 150 mm up to and including 200 mm Dia

Core cutting in RCC beyond 200 mm up to and including 250 mm Dia

Removing carefully the existing damaged Flush door shutters/ windows with frame ( if required) from its existing location without damaging any Vision glass, lock, doorcloser etc. Resizing the same for smooth operation to make floor touch free including strengthening the shutter by refixing the beeding with necessary nails etc,reshaping & refixing of the door as required, re-erecting and re-positioning the frame/ shutter at the same place, re- fixing all fitting such as MS hold fast,pull/ push handle, hinges, locking arrangement, towerbolt etc. complete with painting the rectified area to match with existing door paint all as required including making arrangements for fixing hold fast in the existing wall with concrete etc. as directed by the Engineer-in-charge. Note 1. The contractor shall provide the sundry materials such as screws, nails etc. No extra payment will be made for it. 2. If any aluminum sections are required, the same will be measured and paid under relevent item. 3. All required fittings like heavy duty door closer (one no), mortise clock ( one no) if required will be supplied and fixing by the contractor and will be paid under relevent items.

Dismantling Works: Dismantling plain cement concrete manually / by mechanical means carefully without damaging adjacent structures including disposal of debris within 200 m lead as per direction of Engineer-in-charge

Dismantling Aluminium / Gypsum partitions, doors, windows, fixed glazing and false ceiling including disposal of unserviceable surplus material and stacking of serviceable materials within 100 m lead as directed by the Engineer-in-charge

Dismantling of RCC works including Cutting and stacking of steel reinforcement bars and disposal of unserviceable materials within 100 m lead as per direction of Engineer-in-charge

Dismantling old plaster / skirting carefully , raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 100 m lead

Dismantling brick work in Cement mortar carefully without damaging adjacent structures including stacking of materials and dispoal of unserviceable materials within 100 m lead as per direction of Engineer-in-charge

Dismantling doors, windows and clear storey openings (steel / wood) shutter including chowkhats, architraves, holdfasts etc. complete and stacking within 100 m lead (full windows) Of area 3.00 Sq.M and below

Dismantling doors, windows and clear storey windows (steel / wood) shutter including chowkhats, architraves, holdfasts etc. complete and stacking within 100 m lead (full windows) Of area beyond 3.00 Sq.M

Dismantling tile work in floors and roofs laid in cement mortar including stacking material within 100 m lead. For thickness of tiles above 25 mm and up to 40 mm

Dismatling of carefully existing ground floor and first floor parapet wall panels (2.5 m*1.2m) long (approximately) and casting the same including shuttering and laying in position Reinforced Cement concrete (RCC) of grade M-25 using 20 mm maximum size aggregates and river sand of approved quality including Admixtures of approved Brand and quality (Plasticiser or super plasticiser) if required, including weigh batching, Mechanical mixing, transporting , placing, vibrating, consolidation, finishing, curing etc. complete but excluding the cost of centering, shuttering ,and reinforcement complete as per specifications(Cement Concrete M-25 Grade nominal size 20 mm metal ).

NDT Test: Conducting ultra sonic pulse velocities tests, at all locations prepared after chipping the plaster, on columns, beams and portal frames to assess the integrity of concrete as per BIS/ASTM specifications etc. complete.

Conducting rebound hammer test as per BIS/ASTM standards etc. complete.

Conducting half-cell potential meter test at all locations to assess the risk of corrosion including exposing the reinforcement for carrying out the test. The test shall be conducted as per BIS/ASTM specifications. The quoted rate shall include charges for filling back areas chipped for exposing the reinforcement with polymer modified mortar. 5 potential observations taken at one location will form a unit for measurement purposes.

Extraction and testing of concrete drill dust samples from the structure. Three drill dust samples from depths 0-15mm, 15-30mm and 30-45mm shall be collected from each location. The samples shall be tested for chlorides, sulphates, PH and alkalinity.

Conducting test: Preparing the surface of RCC structural member such as beams, columns, slabs, water tank walls & slab etc by chipping the plastered surface/finishing/cladding to expose the concrete, cutting etc as per S-516(Part 5/Sec 3):2021 and conducting carbonation test at various depth as directed by EIC.

Extraction of concrete (75mm dia) cores from locations specified and testing for crushing strength, water absorption & unit weight. The quoted rate shall include charges for filling back the core holes with polymer modified mortar and finishing etc. complete

Conducting profometer scan at specified location of the structure for reinforcement steel location, size and cover measurement, etc. complete.

Conducting conduct an aggregate alkali reaction test on hardened concrete, you typically follow guidelines set by standards ASTM C1260 (Standard Test Method for Potential Alkali Reactivity of Aggregates) of hardened concrete at different loactions of building . The test is to conducted based on ASTM C856-77, to find out the different properties of hardened concrete such as Aggregate Characteristics, Cement Type, Microstructure, Cracking and Defects, Hydration Products, Porosity and Permeability, Color and Texture, Historical Context to estimae the Durability and Performance of concrete. The quoted rate shall include charges for filling back areas chipped for exposing the reinforcement with polymer modified mortar and submission of test reports.

Conducting Linear Polarisation resistence test at all locations to assess the risk of corrosion including exposing the reinforcement for carrying out the test. The test shall be conducted as per BIS/ASTM specifications. The quoted rate shall include charges for filling back areas chipped for exposing the reinforcement with polymer modified mortar and submission of test reports. 5 potential observations taken at one location will form a unit for measurement purposes.

Determining the surface tensile strength and bond strength of concrete (Pull Off) as per ACI 503.1R/ASTM C1583 including preparing concrete surface, drilling the concrete, bonding concrete with disk with rapid set epoxy and conducting test on old surface and newly repaired suface as directed by Engineer -In-Charge.

Preparation and submission of two copies of draft report as specified followed by five copies of final report along with a soft copy of the same on diskette covering Non Destructive test observations, analysis, interpretation and conclusions of NDT observations, drawing out measures for durability make up, estimation of repair quantities, rate, rate analysis for major repair items. Note: 1. The rates quoted for item No. 93 to 102 shall include preparation of test area, making good the areas with polymer modified mortar, disposing off debris and necessary scaffolding arrangements for testing

Conducting distress mapping Analysis for each floor in Old Training School building including highbay, Store rooms, sitting rooms , canopy staircase, porch, all the areas of OTS. Distress symptoms will be marked on floor plan as per notation used or as directed by Project Engineer and preparing data sheets mentioning exact location of each crack, height, and width of crack and Preparation and submission of two copies of draft report as specified followed by five copies of final report along with a soft copy of the same on diskette covering distress mapping Analysis observations and conclusions along with photos etc., Complete as directed by Engineer-in-Charge. Note: Condition Survey of the area under consideration shall be carried out, which includes a) Visual Inspection: Grouping of structural members should be done during visual inspection based on environmental exposure conditions e.g. external and internal members. Also, identification of Corrosion prone locations as per Visual Inspection. Follow the notations and typical worksheet for recording distress during visual inspection and damage classes based on visual inspection as per CPWD handbook on repair. The condition survey report shall comprise the output of visual inspection and NDT results. Major sections to be covered in the report shall be: (i) Identification of the cause of the distress. (ii) Systematic documentation of all observations during visual inspection, including distress maps. (iii) Systematic documentation of all test results obtained from NDTs. (iv) Determination of concrete properties based on NDTs (v) Requirement of propping of structural members to relieve part/full load acting on the member. (vi) Requirement of immediate evacuation and safety measures to prevent any immediate major mishap. (vii) Recommendations on repair/retrofit strategy with due consideration to available space and accessibility for ongoing activities. (viii) Requirements on safety measures to be adopted during execution of repair/retrofit jobs. (ix) Limitations/assumptions used. (x) Any other recommendation.