REPAIR AND PAINTING OF CPP STACK AND DERRICK - (REFLOAT)

Amount

REPAIR OF CPP STACK Repair of CPP Stack No.1 by replacing the top flanged segment of stack shell and hood, including rolling of sheet, fabrication and welding in dropped down condition (ground level) with MS plate of required thickness, replace all landing platforms plates with fabricated grill, replace / reinforce the structural support members of platform as the existing site condition warrants, and repair the bottom man way frame of the stack strictly according to existing design and instruction of engineer-in-charge and as per scope of work. The replacing of all landing platform plate includes supply of platform grill applied with one coat of coaltar epoxy primer and two coat of coaltar epoxy finish paint (as per the drawing attached). The material like MS Plate and structural steel for the stack and platform shall be supplied by HOC, while the material for fabrication of platform grill like flat, rod, coal tar epoxy primer and its application and paint shall be in the scope of the contractor. All the tools & tackles, static/mobile Crane, lifting/transportation equipments if any required, supply and fabrication of derrick for construction purpose, providing suitable scaffolding, all kinds of consumables like welding rods, cutting gases, labour including supervision also shall be in the scope of contractor and as per scope of work.

REPAIR OF DERRICK OF CPP STACK Carry out the repair of damaged portion/structural members of "Structural Derrick" of CPP stack strictly according to existing design and as per instruction of engineer-in-charge and scope of work. The steel structural required to replace the damaged structural members shall be supplied by HOCL free of cost from its stores. All the tools & tackles, static/mobile Crane/lifting/, transportation equipments if any required, supply and fabrication of derrick for construction purpose, all kinds of consumables like welding rods, cutting gases , labour including supervision and providing suitable scaffoldings including transportation of materials from HOCL stores also shall be in the scope of contractor and as per scope of work.

PAINTNG OF CPP STACK Supply and application of Heat resistant Aluminum paint to outside shell of Stack of CPP as per instruction of engineer-in-charge and scope of work. Scope includes, Surface preparation, Supply and application of Heat Resistant Aluminum paint suitable for working up to 650°C., including providing all labour, tools & tackles, scaffolding, consumables etc. Surface preparation should be as per SSPC-SP-2-63 Paint System : Two coats of Heat resistant Aluminium paint. DFT = 20 Microns /coat Total DFT - 40 Microns (min)

PAINTING AND COLOUR BANDING OF STRUCTURAL DERRICK OF CPP STACK Supply and application of one coat of Epoxy primer & two coat of Epoxy finish paint after proper surface preparation, providing colour banding with one coat of Synthetic Enamel paint of colour White and Red with specified width as per instruction of Engineer-in-charge and scope of work. The scope includes supply and application of primer and paints, labour, tools tackles, consumables, scaffolding, transportation charges etc, as per the scope of work and instruction of Engineer-in-charge. Paint System : One coat of Zinc Phosphate Epoxy Primer. Two coats of Epoxy finish paint. DFT a. Primer - 1 (33 ± 3) Microns b. Finish - 2 (33 ± 3) Microns Total DFT of all three coats - 100 Microns (min) Colour Banding with Synthetic Enamel paint (one coat) Paint System : One coat of Primer. Two coats of finish DFT a. Primer - 1 (25 ± 5) Microns b. Finish - 2 (25 ± 5) Microns Total DFT of all three coats - 75 Microns (min)

REPAIR OF OTHER SEGMENTS OF CPP STACK (IF REQUIRED) Replace the damaged portion of the shell( EXCLUDING TOP SEGMENT) of CPP Stack from top to bottom including rolling of sheet, fabrication and welding in position (at all elevation) or in dropped down condition with MS plate of required thickness, strictly as per the existing design and instruction of engineer-in-charge and scope of work. The MS plate required to replace the shell shall be supplied by HOCL free of cost from its stores. All the tools & tackles, static/mobile Crane/lifting/transportation equipments if any required, supply and fabrication of derrick for construction purpose, all kinds of consumables like welding rods, cutting gases , labour including supervision and providing suitable scaffoldings also shall be in the scope of contractor.

MBM ENGG WORKS

TECH STEEL ENGINEERING CONTRACTORS

MECON ENGINEERING CONSTRUCTION

Devi Engineering Works