Blasting And Painting Of Various Equipments In Digboi Refinery During M And I Shutdown 2020, IOCL(AOD), Digboi-Assam

Blasting And Painting Of Various Equipments In Digboi Refinery During M And I Shutdown 2020-1 Blasting And Painting 2 <H>Surface Preparation< / > 3 <H>Sspc-Sp2 ( Ssi-St2 ) :Manual Cleaning< / > This Applies To Manual Cleaning Of Flat Steel Surfaces Like Storage Tanks, Columns, Vessels, Exchangers, Chimneys, Steel Structures, And Other Flat Surfaces To Sspc.Sp2 ( Ssi-St-2 ) Standard Of Sweedish Specification Applying Wire Brushing, Machine Brushing / Grinding Etc. To Remove All Millscale, Residual Rust And Foreign Matter. Finally The Surface Should Be Cleaned By Dry Compressed Air Or By Clean Brush. 4 With Ready Mixed Red Oxide Zinc Chromate Primer Of Approved Brand And Manufacture On Steel / Galvanised Iron / Steel Works. 5 Painting With Synthetic Enamel Paint Of Approved Brand And Manufacture To Give An Even Shade: 6 Two Or More Coats On New Work Old Surface 7 Lettering With Black Japan Paint Of Approved Brand And Manufacture Note : Unit Of Measurement Is Considered Each Which Is Equal To Per Cm Height Per Letter. 8 Re-Lettering With Black Japan Paint Of Approved Brand And Manufacture. Note: Unit Of Measurement Has Been Considered Each Which Is Equal To Per Cm Height Per Letter. 9 Painting With Black Anti-Corrosive Bitumastic Paint Of Approved Brand And Manufacture. Give An Even Shade: 10 One Or More Coats On Old Work 11 Painting With Aluminium Paint Of Approved Brand And Manufacture To Give An Even Shade: 12 One Or More Coats On Old Work. 13 Painting With Aluminium Paint Of Approved Brand And Manufacture To Give An Even Shade. 14 Two Or More Coats On New Work 15 Grit / Shot Blasting On Steel Surfaces Like Storage Tanks, Columns, Vessels, Exchangers, Chimneys, Steel Structures And Other Flat Surfaces To S.A. 2-1 / 2 Sweedish Specifications In Position At All Heights Excluding Cost Of Scaffolding With All Tools And Plants, Consumables, Labour Etc, Complete In All Respect As Directed By Engineer-In-Charge. Air In The Scope Of Contractor ( Contractor Will Have To Make Is Own Arrangement For Compressor Etc. For Arranging Required Air For Sand Blasting ) . 16 Applying Priming Coat With Ready Mixed Primer Of Approved Brand And Manufacturer Like Zinc Cromate Red Oxide / Mio Zinc Phosphate Red Oxide / Epoxy Primers Or Any Other Equivalent Primer At All Heights Over Steel Surfaces Like Structures, Columns, Pipes, Vessels, Tanks Etc. Including Cleaning The Surface Using Emery Papers, Consumables, Tools, Tackles, Labour Etc. Complete As Per Manufacturers Specifications And Directions Of The Engineering-In- Charge. 17 Self Priming High Build Coating Primer Like Protectomastic Self Priming High Build Coating To Achive A Minimum Dft Of 100 Microns. 18 Supplying & Applying One Coat Of High Built Red Oxide Zinc Phosphate Metal Primer To Achive Minimum 60 Microns Dft ( Min ) 19 Application Of Inorganic Zinc Ethyl Silicate Primer To Achieve A Dft Of 75 Micron Min. In A Single Coat Primer By Airless Spray Or Equivalent Means 20 Supplying & Applying Various Epoxy And Other Protective Finish Paints Of Approved Make And Brand Over Steel Structures, Pipelines, Tanks And Equipments, Concrete Floors Etc. With All Materials, Labours, Tools-Tackles And Consumables Etc. Complete As Per Manufacturers Specification & Directions Of Engineer-In-Charge. 21 Two Or More Coats Of High Build Tank Liner Epoxy Paint Such As Epilux 78 Hbtl Of M / S. Berger Paints Or Equivalent To Achieve A Minimum Dft Of 100 Microns In Each Coat And A Total Of 200 Microns By Brush Or Spray Application 22 Two Or More Coats Of Coaltar Epoxy Paint I.E. Epilux 5 Of M / S Berger Paints Or Equivalent To Achieve Minimum Dft Of 80-100Microns In Each Coat And Total Of 160 To 200 Microns In Two Coats By Brush Or Spray Application. 23 Two Or More Coats Of Phenolic Epoxy Paint Such As Epilux 9 Phenolic Coating Of M / S. Berger Paints Or Equivalent Prepared And Applied As Per Manufacturers Specification To Achieve A Finish Coat Dft Up To 250 Micron Min. By Brush Or Spray Application. 24 One Or More Coats Of Anti Corrosive High Build Phenolic Based Bitumen Paint Such As Tuffkote Bituminous Black Of M / S. Shalimar Paints Or Intertuf 16 Of M / S. Akzo Nobel Or Equivalent To Achieve A Minimum Dft Of 100 Micron. 25 One Or More Coats Of Acrylic Polyurethane Paint To Achieve A Finish Coat Dft Up To 100 Micron Min. 26 Two Or More Coats Of Heat Resistant Coating Of Temparature Resistance Upto 250 Degree Centigrade I.E. Ferrotol Hr Aluminium Paint Of M / S Berger Paints Or Equivalent To Achieve A Minimum Dft Of 15-20Microns In Each Coat And Total 30 To 40 Microns In Two Coats By Brush Or Spray Application. 27 Two Or More Coats Of Heat Resisting Aluminium Paint Temparature Resistance Upto 250 Deg To 400 Deg Centigrade Such As Lustrotherm Ht 400 Of M / S. Shalimar Paints Or Intertherm 972 Of M / S. Akzo Nobel Or Equivalent Of Other Iocl Approved Manufacturer To Achieve The Dft Of 50 Microns ( 25 Microns In Each Coat ) By Brush Or Spray Application. 28 Two Or More Coats Of Heat Resisting Aluminium Paint 400 Deg To 600 Deg Centigrade Such As Lustrotherm Ht 600 Of M / S. Shalimar Paints Or Intertherm 972 Of M / S. Akzo Nobel Or Equivalent Of Other Iocl Approved Manufacturer To Achieve The Dft Of 50 Microns ( 25 Microns In Each Coat ) By Brush Or Spray Application At Site 29 Finishing With Epoxy Paint ( Two Or More Coats ) At All Locations Prepared And Applied As Per Manufacturers Specifications Including Appropriate Priming Coat, Preparation Of Surface Etc. Complete. 30 On Steel Work 31 Painting With Black Anti-Corrosive Bitumastic Paint Of Approved Brand And Manufacture To Give An Even Shade: 32 Two Or More Coats On New Work 33 Steel Scaffloding Materials In Contractors Scope The Job Includes Transportation Of Scaffolding Materials In Contractors Scope Of Supply, Erection Of Scaffolding At Site Covering The Areas Specified Including Providing Vertical Posts Of Pipes At Inter Distance Of 1.5 M And Horizontal Numbers At A Inter Distance Of 0.5 To 0.75 M, Providing Tie Rods At Corners To Give Sufficient Strength To The Structure, Placing The Wooden / Steel Planks / Frp Gratings On Top For Making Sufficient Area. Dismantling Scaffolding After Completion Of Job And Returning The Scaffolding Material To Specified Place Including All Tools, Tackles, Consumables, Labours And Contractors Supervision As Directed By The Engineer-In-Charge 1. For Measurement In Sqm: 2 ( Length + Width ) X Height Area Covered By The Scaffolding Is To Be Taken. 2. Scaffolding Measurement To Be Done By Breaking The Height Into Parts As Per Height Slab Mentioned Below And Adopting Respective Rates Against Mentioned Height Slabs. 34 Upto 6 M 35 Above 6 M Upto 10 M 36 Above 10 M Upto 20 M 37 Above 20 M Upto 30 M 38 Above 30 M Upto 40 M 39 Above 40 M Upto 50 M 40 Above 50 M Upto 90 M 41 Intermediate Plate Form 42 Escalation Factor@26.73% On Civilsor2018 43 Escalationfactor @11.97 % On Mech Sor 44 Deduction Of 1.5% On Sor-2018 Item Rate 45 Shutdown Factor @ 25 % On Sor 2018 Items

Sr No	CorrigendumDate	Corrigendum	CorrigendumType	NewSubmissionDate
1	15-06-2020	Date Extension 4	Date	26-06-2020
2	18-05-2020	Date Extension	Date	29-05-2020
3	30-05-2020	Date Extension 2	Date	12-06-2020

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