Repairing and renovation of RCC Paltech Cooling Tower at TNPL Unit I

SURFACE-PREPARATION FOR DAMAGED AND LOOSE CONCRETE OF THE COLUMN / BEAM / SLAB / WALL AND OTHER ELEMENTS CHIPPED OFF AND CLEAN THE SURFACE AND MAKE SURE THAT THE SURFACE IS CLEAN AND FREE FROM LOOSE PARTICLE. THE RATE SHALL INCLUDE THE COST OF LABOUR CHARGES ALL TOLLS AND TACKLES COMPLETE AS DIRECTED BY ENGINEER INCHARGE.

PROVIDING ANTI CORROSIVE COATING OVER THE REBARS USING THE RUST REMOVER IF THERE EXISTS ANY RUST, OTHERWISE CLEAN THE REBAR FREE OF FOREIGN MATERIAL. MIX THE BASE AND HARDENER OF THE ANTI-CORROSIVE COATING LIKE NITOZINC PRIMER OF FOSROC / SIKA / ARDEX ENDURA / DEMACH MECHANICALLY USING A SLOW SPEED HEAVY DUTY DRILLING MACHINE FITTED WITH MIXING PADDLE. APPLY THE MIXED MATERIALS TO THE CLEANED REBAR AND ALLOW IT TO DRY COMPLETE. THE RATE SHALL INCLUDE THE COST OF ALL MATERIALS, LABOUR CHARGES, CONSUMABLES ALL TOOLS AND TACKLES AS DIRECTED BY THE ENGINEER INCHARGE COMPLETE.

PROVIDING EPOXY JOINTING COMPOUND FOR OLD AND NEW CONCRETE SURFACE, BEFORE APPLY BONDING AGENT CLEAN THE CONCRETE SURFACE, REMOVE THE ALL LOOSE PARTICLE, IF ANY MAKE SURE THAT THE FORM WORK IS READY FOR POSITIONING. MIX THE BASE AND HARDENER OF THE EPOXY RESIN JOINTING COMPOUND AND APPLY THE SAME TO THE PREPARED SURFACE. CARE SHOULD BE TAKEN THAT THE MICRO CONCRETE NEED TO BE DONE WITH APPLICATION OF EPOXY JOINTING COMPOUND NITOBOND EP POLIMER MODIFIED MORTAR OF FOSROC / SIKA / BASF / ARDEX ENDURA / DEMACH. THE RATE SHALL INCLUDE THE COST OF ALL MATERIALS, LABOUR CHARGES, CONSUMABLES ALL TOOLS AND TACKLES AS DIRECTED BY THE ENGINEER INCHARGE COMPLETE.

PROVIDING AND APPLYING MICRO CONCRETE USING RENDEROC RG OF FOSROC / SIKA / BASF / ARDEX ENDURA / DEMACH WITH 12MM DOWNGRADED CHIPS ON SITE IN SSD CONDITION. AGGREGATE SHALL BE ADDED AT THE RATE OF 35% BY WEIGHT OF POWDER WITH CONTROLLED WATER POWDER RATIO OF 0.16 FOR THICKER SECTION MORE THAN 100MM. AN APPROVED CONCRETE MIXER OR A SLOW SPEED HEAVY DUTY DRILLING MACHINE FITTED WITH MIXING PADDLE SHALL BE USED AND CONTINUOUS POURING IS RECOMMENDED. REMOVE THE FORMWORK AFTER 24 HOURS CHECK FOR ANY SURFACE DEFECTS AND IF SO APPLY THE POLYMER MODIFIED MORTAR.THE RATE SHALL INCLUDE THE COST OF ALL MATERIALS, LABOUR CHARGES, CONSUMABLES ALL TOOLS AND TACKLES AS DIRECTED BY THE ENGINEER INCHARGE COMPLETE.

PROVIDING AND APPLYING POLYMER MODIFIED MORTAR RENDEROC SP40 OF FOSROC / BASF / SIKA / ARDEX ENDURA / DEMACH MIXED WITH WATER IN RATIO 0.16 A HIGH STRENGTH, SHRINKAGE CONTROLLED CEMENTITIOUS REPAIR MORTAR APPLIED AT AN AVERAGE THICKNESS OF 25MM USING A STEEL TROWEL IN ONE LAYER AND FINISHED USING A DAMP SPONGE. ONCE THE POINTING MORTAR HAS DRIED, CURING TO BE CARRIED OUT IMMEDIATELY ASPER REGULAR CURING PRACTICE OR USING CURING COMPOUND. THE RATE SHALL INCLUDE THE COST OF ALL MATERIALS, LABOUR CHARGES, CONSUMABLES ALL TOOLS AND TACKLES AS DIRECTED BY THE ENGINEER INCHARGE COMPLETE. HIGHER THICKNESS SHALL BE BUILT IN LAYERS AND AT EXTRA COST.

PREPARE RCC SURFACE TO RECEIVE WATER BASED EPOXY PROTECTIVE COATING BY USING ARDEX ENDURA WPM 300 OR EQUIVALENT AS WATER BARRIER COATING TO A THICKNESS OF 300 MICRONS AND APPLY ONE COAT OF WATER BASED ACRYLIC ANTI CARBONATION FACADE PROTECTIVE COATING BY USING ARDEX ENDURA AC 20 OR EQUIVALENT TO A THICKNESS OF 200 MICRONS. THE RATE INCLUSIVE OF ALL MATERIALS, CONSUMABLES, SAFETY MEASURES, LABOUR COST ETC., UPTO THE HEIGHT OF +25 MTR ELEVATION.

FORM WORK - WROUGHT AND PUT UP WITH GOOD QUALITY MARINE GRADE PLYWOOD FOR ALL TYPES OF SHUTTERING WORKS LIKE COLUMN, BEAM, SUNSHADE, SHELL WALL, ROOF SLAB, STAIRCASE, ETC., AS "PLASTER FREE FINISH" ABOVE FFL TO +7 MTR LEVEL.

PROVIDING MANPOWER ASSISTANCE FOR ATTENDING MISCELLANEOUS CIVIL WORKS - MASON.

PROVIDING MANPOWER ASSISTANCE FOR ATTENDING MISCELLANEOUS CIVIL AND STRUCTURAL WORKS – HELPER FOR MASON / PLUMBER / CARPENTER / FITTER / WELDER, ETC.,

PROVIDING TEMPORARY PLATFORM BY USING PIPES / SCAFFOLDING MATERIAL AND LAYING OF WOODEN PLANKS TO REQUIRED HEIGHT PROVIDE TARPAULIN OVER THE PLATFORM TO AVOID FALLING OBJECT ABOVE THE MACHINERY, ALSO REMOVE THE TEMPORARY PLATFORM AFTER COMPLETION OF THE WORK AS PER ENGINEER INSTRUCTION AT ALL LEVELS.

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