Rashtriya Chemicals And Fertilizers Limited Tender

REMOVING EXISTING CORROSION BY RUST REMOVER: MANUALLY AND MECHANICALLY REMOVE EXISTING CORROSION FROM M.S./TOR BARS USING LIGHT TAPPING, WIRE BRUSHING, MECHANICAL GRINDING, WASHING, AND DRYING OF EXPOSED SURFACES. PROVIDE AND APPLY TWO COATS OF AN APPROVED RUST REMOVER, WHICH CONTAINS ACID-BASED MATERIALS, CORROSION INHIBITORS, AND DISPERSING AGENTS, SUPPLIED AS SOLUTION. APPLICATION OF THE RUST REMOVER SHOULD BE PERFORMED WITH A BRUSH TO ENSURE FULL COVERAGE OF THE RUSTED METAL SURFACE. ALLOW IT TO REACT FOR A FEW HOURS, THEN CLEAN THE SURFACE WITH A WIRE BRUSH AND WASH WITH FRESH WATER AS NECESSARY TO EXPOSE THE REINFORCING BARS. THIS ENTIRE PROCESS MUST BE COMPLETED AS SPECIFIED, ETC. ADDITIONALLY, TIE AND FIX ANY MISPLACED REINFORCEMENT BARS IN THEIR REQUIRED POSITIONS USING U-CLIPS, BINDING WIRES, ETC. MEASUREMENTS SHOULD BE TAKEN FOR THE EXPOSED AREA OF CONCRETE. .MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS)

ANTICORROSIVE COATING :APPLY INHIBITION COATS TO EXPOSED REINFORCEMENT BARS AFTER DRYING AND TO NEW BARS AFTER CLEANING AND COMPLETELY REMOVING SCALES AND RUST, AS SPECIFIED. USE AN EPOXY ZINC PRIMER, A TWO-COMPONENT EPOXY ZINC-RICH PRIMER SUPPLIED IN LITRES. THIS TWO-COMPONENT SYSTEM IS BASED ON METALLIC ZINC AND EPOXY RESIN. THE ANTI-CORROSIVE COAT CONTAINS AN ACTIVE 'ZINC-RICH' SYSTEM THAT COMBATS CORROSION BY ELECTROCHEMICAL MEANS. TYPICAL APPLICATION INCLUDES SURFACE PREPARATION BY CLEANING THE STEEL SURFACE WITH PARTICULAR ATTENTION TO THE BACK OF EXPOSED STEEL BARS. MIX THE TWO COMPONENTS USING A SLOW-SPEED, HEAVY-DUTY DRILL FITTED WITH A PADDLE. APPLY AN UNBROKEN COAT WITH A SUITABLE BRUSH AND ALLOW TO DRY. APPLY A SECOND COAT TO ENSURE COMPLETE COVERAGE. THE EXPOSED STEEL/REBAR SHALL HAVE AT LEAST 40 MICRONS DRY FILM THICKNESS AND SHALL DEMONSTRATE SALT SPRAY RESISTANCE, COMPLETE.MEASUREMENTS SHOULD BE TAKEN FOR THE EXPOSED AREA OF CONCRETE.MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS)

SACRIFICIAL ANODE FOR CATHODIC PROTECTION : PROVIDING AND FIXING "SACRIFICIAL ANODES" BY TYING ON THE EXPOSED AND CLEANED REBAR FOR PROTECTION OF REINFORCEMENT STEEL AGAINST CORROSION REPAIR AREA BEING PROTECTED AS DIRECTED BY EIC. THE SACRIFICIAL ANODE HAVING GALVANIC ANODE MASS OF AT LEAST (2 NOS. X 50) GRAMS BASED ON SPECIAL ZINC ALLOY ENCASED IN CONDUCTIVE MORTAR SHALL BE TIED / FASTENED FIRMLY TO THE EXPOSED AND CLEANED REBAR USING TIE WIRES OF SACRIFICIAL ANODES. THEY SHALL BE FIXED AND TIED AFTER THOROUGH CLEANING OF REBAR'S AND APPLICATION OF ANTI-CORROSIVE TREATMENTS. THE ANODES SHALL BE SOAKED IN WATER FOR ABOUT 30 MINUTES BEFORE THEY ARE FIXED ON THE RCC AREA BEING REPAIRED, ETC WITH CONTRACTOR'S LABOURS, EQUIPMENT, TOOLS, ALL MATERIAL, ETC., COMPLETE AS PER DETAILED MANUFACTURERS SPECIFICATIONS .THE SCHEME FOR THE LOCATION OF THE SACRIFICIAL ANODES MUST BE APPROVED BY THE EIC BEFORE INSTALLATION. MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS)

PROVIDING AND INJECTING LOW VSICOUS GROUT: PROVIDING AND APPLYING LOW VISCOSITY EPOXY INJECTION GROUTING IN CRACKS OF THE PARENT CONCRETE BY DRILLING HOLES ALONG THE LENGTH OF THE CRACKS, REMOVING ALL DUST AND LOOSE PARTICLES, AND PLACING INJECTION PORTS AT A SPACING OF 200 TO 500 MM CENTER TO CENTER, DEPENDING ON THE POROSITY OF THE SUBSTRATE. PRESSURE GROUTING SHALL COMMENCE AFTER SURFACE PREPARATION, WHICH INCLUDES FIXING NIPPLES AND FILLING THE CRACKS WITH EPOXY MORTAR PRIOR TO GROUTING. INJECT THE LOW VISCOSITY GROUT MECHANICALLY UNDER PRESSURE, REMOVE THE NIPPLES AFTER GROUTING, AND SEAL WITH HIGH-STRENGTH MORTAR, ALL AS DIRECTED BY THE ENGINEER-IN-CHARGE (EIC). THIS ITEM WILL BE PAID BASED ON THE ACTUAL CONSUMPTION OF GROUTING MATERIAL USED, MEASURED IN KILOGRAMS OR LITERS. THE SCHEME FOR THE LOCATION MUST BE APPROVED BY THE EIC BEFORE INSTALLATION. MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS)

APPLICATION OF CORROSION INHIBITOR: PROVIDING & APPLYING ONE COAT OF CONCRETE PENETRATING CORROSION INHIBITOR OF APPROVED MANUFACTURER (SURFACE APPLIED) WHICH WORKS ON BIPOLAR INHIBITION MECHANISM ON ENTIRE CONCRETE SURFACE TO BE REPAIRED BY USING BRUSH OR SPRAY AS DIRECTED / AS PER MAUNFACTURERS SPECIFICATION APPROVED BY CLIENT AND PRIOR TO APPLICATION OF FIRST COAT OF ANTI-CORROSIVE COATING TO REINFORCEMENT. MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS)

PU FOAM INJECTION GROUTING: MECHANICAL PACKERS-PROVIDING AND FIXING NON-RETURN NON-CORROSIVE VALVES(NRV) OF SIZE 13MM DIA AND 100MM LONG @ APPROX 200-500 MM C/C STAGGERED BY DRILLING HOLES AT CRACKS AND LEAKAGE POINTS AT AN ANGLE 45 DEGREES OF INCLUSIVE OF FLUSHING AND CLEANING OF HOLE ETC COMPLETE.THE SCHEME FOR THE LOCATION OF THE MECHANICAL PACKERS/NRV MUST BE APPROVED BY THE EIC BEFORE INSTALLATION. MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS)

PU FOAM INJECTION GROUTING PRIMARY INJECTION: AFTER FIXING NON-RETURN VALVES, INJECT WITH A 2-COMPONENT SYSTEM CONSISTING OF A RAPID FOAMING AND SETTING RESIN TO STOP THE FLOW OF WATER. THIS SYSTEM INCLUDES A BASE AND ACCELERATOR COMPONENT OF POLYURETHANE FOAM, WITH A REACTION TIME OF 5 TO 30 SECONDS WITH WATER, COMPLETE. SECONDARY INJECTION: INJECT FLEXIBLE PLAIN POLYURETHANE RESIN, WHICH IS SOLVENT-FREE AND A TWO-PART SYSTEM, INTO THE PREDRILLED HOLES AND NOZZLES AFTER PRIMARY INJECTION WITH PU FOAM FOR SEALING CRACKS, COMPLETE. THE SCHEME FOR THE LOCATION OF THE INJECT GROUT MUST BE APPROVED BY THE EIC BEFORE INSTALLATION. MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS).

ADDITIONAL REINFORCEMENT : SUPPLYING, CUTTING, FABRICATING NEW REINFORCEMENT FE500D FOR JACKETING, ANY NEW RCC WORK AND PROVIDING ADDITIONAL STEEL REINFORCEMENT TO COMPENSATE CORRODED REINFORCEMENT IN EXISTING MEMBER ETC. AND FIXING WITH OLD EXISTING REINFORCEMENT AS DIRECTED BY EIC AS REQUIRED TYING WITH 16 GAUGE ANNEALED BINDING WIRE COMPLETE AS PER DRAWING AND SPECIFICATIONS FOR ALL HEIGHTS INCLUDING ALL MATERIAL, LABOUR, TOOLS, PLANT AND MACHINERIES, CURING ETC. COMPLETE AS DIRECTED BY ENGINEER-IN-CHARGE (TMT BARS OF VARIOUS SIZE AS REQUIRED). THE SCHEME FOR THE LOCATION MUST BE APPROVED BY THE EIC BEFORE INSTALLATION. MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS).

SHEAR CONNECTORS: DRILLING HOLES INTO EXISTING CONCRETE SUBSTRATE FOR ANCHORING OF NEW ANCHORING REBARS WITH 10 MM DIA SHEAR CONNECTORS AT 0.5 M C/C IN ZIG ZAG PATTERN AS PER DRAWING AND FOR ADDITIONAL REBAR PROVISION IN REPAIR AREA AND FIXING WITH STYRENE FREE VINYL ESTER-RESIN BASED CARTRIDGE SYSTEM FOR ANCHORING REINFORCEMENT WITH A SINGLE MIXER NOZZLE, TYPICAL APPLICATION INCLUEDS DRILLING HOLE STEEL DIA + 2 MM DIA AND 90 MM DEEP AS PER MANUFACTURES RECOMMADATION, CLEANING THE HOLE WITH WIRE BRUSH AND COMPRESSED AIR, PUTTING CHEMICAL GROUT WITH GUN FOLLOWED BY PLACING SHEAR CONNECTOR WITH SLIDE ROTATIONAL MOTION TO AVOID AIR VOID FORMATION ETC COMPLETE AS DIRECTED BY EIC. MEASUREMENT SHALL BE MADE PER NUMBER OF SHEAR CONNECTORS INSTALLED. STEEL SHALL BE PAID SEPARATELY,THE SCHEME FOR THE LOCATION MUST BE APPROVED BY THE EIC BEFORE INSTALLATION. MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS)

SHEAR CONNECTORS: DRILLING HOLES INTO EXISTING CONCRETE SUBSTRATE FOR ANCHORING OF NEW ANCHORING REBARS WITH 12 MM DIA SHEAR CONNECTORS AT 0.5 M C/C IN ZIG ZAG PATTERN AS PER DRAWING AND FOR ADDITIONAL REBAR PROVISION IN REPAIR AREA AND FIXING WITH STYRENE FREE VINYL ESTER-RESIN BASED CARTRIDGE SYSTEM FOR ANCHORING REINFORCEMENT WITH A SINGLE MIXER NOZZLE, TYPICAL APPLICATION INCLUEDS DRILLING HOLE STEEL DIA + 2 MM DIA AND 90 MM DEEP AS PER MANUFACTURES RECOMMADATION, CLEANING THE HOLE WITH WIRE BRUSH AND COMPRESSED AIR, PUTTING CHEMICAL GROUT WITH GUN FOLLOWED BY PLACING SHEAR CONNECTOR WITH SLIDE ROTATIONAL MOTION TO AVOID AIR VOID FORMATION ETC COMPLETE AS DIRECTED BY EIC. MEASUREMENT SHALL BE MADE PER NUMBER OF SHEAR CONNECTORS INSTALLED. STEEL SHALL BE PAID SEPARATELY,THE SCHEME FOR THE LOCATION MUST BE APPROVED BY THE EIC BEFORE INSTALLATION. MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS)

SHEAR CONNECTORS: DRILLING HOLES INTO EXISTING CONCRETE SUBSTRATE FOR ANCHORING OF NEW ANCHORING REBARS WITH 16 MM DIA SHEAR CONNECTORS AT 0.5 M C/C IN ZIG ZAG PATTERN AS PER DRAWING AND FOR ADDITIONAL REBAR PROVISION IN REPAIR AREA AND FIXING WITH STYRENE FREE VINYL ESTER-RESIN BASED CARTRIDGE SYSTEM FOR ANCHORING REINFORCEMENT WITH A SINGLE MIXER NOZZLE, TYPICAL APPLICATION INCLUEDS DRILLING HOLE STEEL DIA + 2 MM DIA AND 90 MM DEEP AS PER MANUFACTURES RECOMMADATION, CLEANING THE HOLE WITH WIRE BRUSH AND COMPRESSED AIR, PUTTING CHEMICAL GROUT WITH GUN FOLLOWED BY PLACING SHEAR CONNECTOR WITH SLIDE ROTATIONAL MOTION TO AVOID AIR VOID FORMATION ETC COMPLETE AS DIRECTED BY EIC. MEASUREMENT SHALL BE MADE PER NUMBER OF SHEAR CONNECTORS INSTALLED. STEEL SHALL BE PAID SEPARATELY,THE SCHEME FOR THE LOCATION MUST BE APPROVED BY THE EIC BEFORE INSTALLATION. MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS)

SHEAR CONNECTORS: DRILLING HOLES INTO EXISTING CONCRETE SUBSTRATE FOR ANCHORING OF NEW ANCHORING REBARS WITH 20 MM DIA SHEAR CONNECTORS AT 0.5 M C/C IN ZIG ZAG PATTERN AS PER DRAWING AND FOR ADDITIONAL REBAR PROVISION IN REPAIR AREA AND FIXING WITH STYRENE FREE VINYL ESTER-RESIN BASED CARTRIDGE SYSTEM FOR ANCHORING REINFORCEMENT WITH A SINGLE MIXER NOZZLE, TYPICAL APPLICATION INCLUEDS DRILLING HOLE STEEL DIA + 2 MM DIA AND 90 MM DEEP AS PER MANUFACTURES RECOMMADATION, CLEANING THE HOLE WITH WIRE BRUSH AND COMPRESSED AIR, PUTTING CHEMICAL GROUT WITH GUN FOLLOWED BY PLACING SHEAR CONNECTOR WITH SLIDE ROTATIONAL MOTION TO AVOID AIR VOID FORMATION ETC COMPLETE AS DIRECTED BY EIC. MEASUREMENT SHALL BE MADE PER NUMBER OF SHEAR CONNECTORS INSTALLED. STEEL SHALL BE PAID SEPARATELY,THE SCHEME FOR THE LOCATION MUST BE APPROVED BY THE EIC BEFORE INSTALLATION. MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS) 20 mm

BOND COAT: PROVIDING AND APPLYING STRUCTURAL GRADE EPOXY BONDING AGENT, WHICH SHALL BE A SOLVENT-FREE, EPOXY-BASED TWO-COMPONENT RESIN SYSTEM. THE BONDING AGENT SHALL BE APPLIED BY BRUSH AND MUST REMAIN IN A TACKY STATE AFTER APPLICATION FOR A MINIMUM PERIOD OF 5 TO 6 HOURS. THE PRODUCT SHALL COMPLY WITH BS 6319 STANDARDS OR RELEVANT STANDARDS. THE ADHESIVE BOND TO THE CONCRETE SUBSTRATE SHALL EXCEED THE TENSILE STRENGTH OF THE HOST CONCRETE, COMPLETE. (THE NEW REPAIR MORTAR/CONCRETE SHOULD BE APPLIED WITHIN THE OVERLAY TIME OF THE EPOXY BONDING AGENT AS SPECIFIED IN THE MANUFACTURER'S DATA SHEETS.) THE SCHEME FOR THE LOCATION MUST BE APPROVED BY THE EIC BEFORE INSTALLATION. MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS).

REPAIRING DAMAGED RCC MEMBERS BY SPRAY GRADE POLYMER MODIFIED MORTAR: REPAIR COLUMNS, SLABS, CHAJJAS, FINS, LINTELS, PARDIS, AND BEAMS USING POLYMER-MODIFIED MORTAR. APPLY THE SPRAY GRADE POLYMER-MODIFIED MORTAR WITH SHRINKAGE-CONTROLLED, FIBER-REINFORCED WET/DRY SPRAY GRADE REPAIR MORTAR HAVING A COMPRESSIVE STRENGTH RANGING FROM 40 MPa TO 50 MPa ON THE PREPARED SURFACE, ENSURING A THICKNESS OF UP TO 50 MM AND CURING AS REQUIRED. THE SPRAY GRADE REPAIR MORTAR MUST BE A PREPACKAGED COMPONENT, MIXED WITH WATER AT THE SPECIFIED WATER-TO-POWDER RATIO, AND APPLIED USING A SUITABLE SPRAYABLE MORTAR MACHINE. A HIGH-PERFORMANCE PUMP IS ESSENTIAL FOR DELIVERING A CONSISTENT FLOW RATE AND GENERATING ENOUGH PRESSURE TO ENSURE SMOOTH APPLICATION. THE MACHINE SHOULD FEATURE A HOPPER WITH SUFFICIENT CAPACITY TO MINIMIZE DOWNTIME FOR REFILLS AND AN ADJUSTABLE NOZZLE FOR PRECISE CONTROL OF MATERIAL FLOW. AN INTEGRATED MIXER SHOULD BE INCLUDED TO MAINTAIN UNIFORM CONSISTENCY OF THE MORTAR, AND THE MACHINE MUST BE COMPATIBLE WITH THE APPROPRIATE POWER SUPPLY FOR THE JOB SITE. THE ITEM RATE INCLUDES ALL MATERIALS, LABOR, TOOLS, MACHINERY, CURING, AND ANY OTHER REQUIREMENTS AS DIRECTED BY THE ENGINEER-IN-CHARGE AND/OR CONSULTANT. (PAYMENT WILL BE MADE BASED ON THE MATERIAL CONSUMED IN BAGS OF SPRAY GRADE POLYMER-MODIFIED MORTAR APPLIED TO THE PATCH AREA.)THE SCHEME FOR THE LOCATION MUST BE APPROVED BY THE EIC BEFORE INSTALLATION. MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS). (IF SPRAYABLE MORTAR IS NOT POSSIBLE DUE TO SITE CONDITIONS /CONSTRAINT POLYMER MODIFIED MORTAR MAY BE PERMITTED WITH DEDUCTION OF 15% RATE).

REPAIRING DAMAGED RCC MEMBERS BY GRADE POLYMER MODIFIED MORTAR: PROVIDING AND APPLYING NON-SHRINK CEMENTITOUS POLYMER MODIFIED MICRO CONCRETE HAVING A COMPRESSIVE STRENGTH RANGING FROM 40MPa TO 50MPa OF ANY THICKNESS AS PER SITE REQUIREMENT OF APPROVED BRAND INCLUDING CURING ETC. AS PER MANUFACTURER'S SPECIFICATIONS OR AS PER INSTRUCTIONS OF ENGINEER IN-CHARGE (THE ITEMS SHALL BE PAID ON ACTUAL CONSUMPTION OF PREPACKED MICRO-CONCRETE BAGS QUANTITY ONLY). THE RATE SHALL BE INCLUSIVE OF SURFACE PREPARATION BEFORE APPLICATION AS PER THE MANUFACTURER'S SPECIFICATIONS AND SHUTTERING WHEREVER NECESSARY ETC EXCLUDING BOND COAT , INCLUDING ALL REQUIRED AGGREGRATES, TOOLS, TACKLES ARRANGEMENT ETC COMPLETE AS DIRECTED BY EIC.THE SCHEME FOR THE LOCATION MUST BE APPROVED BY THE EIC BEFORE INSTALLATION. MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS). (IF SPRAYABLE MORTAR IS NOT POSSIBLE DUE TO SITE CONDITIONS /CONSTRAINT MICRO-CONCRETE MAY BE PERMITTED WITH DEDUCTION OF 15% RATE).

CURING COMPOUND : THE ACRYLIC EMULSION MODIFIED, WATER-BASED CONCRETE CURING MEMBRANE SHALL BE APPLIED IMMEDIATELY AFTER THE REPAIR/CONCRETE WORK IS COMPLETED. THE MEMBRANE MUST BE SPRAYED OVER THE FINISHED CONCRETE AREA WITHOUT ANY GAPS OR PINHOLES. THE MATERIAL MUST COVER 5 TO 7.5 SQM PER LITRE. THE COST OF ALL MATERIALS, TOOLS, AND LABOR CHARGES ARE INCLUDED. WORK SHALL BE COMPLETED AS SPECIFIED AND DIRECTED BY THE ENGINEER-IN-CHARGE (EIC). THE SCHEME FOR THE LOCATION MUST BE APPROVED BY THE EIC BEFORE INSTALLATION. MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS). THE AREA OF APPLICATION MUST BE APPROVED BY THE ENGINEER-IN-CHARGE. PLEASE REFER TO NIT CONDITIONS FOR MATERIAL APPROVAL.

SURFACE PREPARATION FOR INTERNAL PROTECTIVE COATING : WATER JETTING TO CLEAN THE SURFACES OF THE CONCRETE SURFACES WITH HDYROJET, KEEPING OPTIMUM PRESSURE USING CLEAN WATER AND DETERGENT/OTHER CLEANING MATERIALS AS NECESSARY INCLUDING REMOVING ALL DUST, GREASE, STAINS, ETC. TO RENDER THE SURFACE CLEAN INCLUDING REMOVING ALL THE TRACES OF CLEANING MATERIALS ETC AS COMPLETE AS SPECIFIED AND DIRECTED.

INTERNAL PROTECTIVE COATING:APPLYING A MOISTURE-COMPATIBLE, CORROSION-RESISTANT MIO-BASED EPOXY-POLYAMIDE PROTECTIVE COATING TO RCC SURFACES AFTER PROPER CLEANING AND SURFACE PREPARATION. THE TWO-PART SYSTEM (BASE AND HARDENER) SHOULD BE THOROUGHLY MIXED AND APPLIED USING AN AIRLESS SPRAY OR LAMBSWOOL ROLLER. APPLY TWO COATS AT 0.42 LITERS PER SQUARE METER, WITH THE SECOND COAT APPLIED PERPENDICULAR TO THE FIRST COAT.ALLOW THE COATING TO CURE FOLLOWING MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS). THE APPLICATION AREA MUST BE APPROVED BY THE ENGINEER-IN-CHARGE. PLEASE REFER TO THE NIT CONDITIONS FOR MATERIAL APPROVAL.

DISPOSAL OF BUILDING RUBBISH / MALBA / SIMILAR UNSERVICEABLE, DISMANTLED OR WASTE MATERIALS, PRODUCT SPILLAGE BY MANUAL OR MECHANICAL MEANS INCLUDING LOADING, TRANSPORTING, UNLOADING TO APPROVED DUMPING GROUND INSIDE FACTORY PREMISES AT A DISTANCE OF WITHIN 3 KM OR AS DIRECTED, FOR ALL LOADS INCLUDING ALL LIFTS INVOLVED.

HEALTH ASSESSMENT OF STRUCTURE AND ISSUE OF STABILITY CERTIFICATE IN RCF FORMAT FOR MINIMUM FIVE YEARS BY COMPETANT AUTHORITY APPROVED BY RCF. DETAILED STRUCTURAL REPORT SHALL BE SUBMITTED WHICH SHALL INCLUDE PHOTOGRAPHC EVIDANCE NECESSARY NDT TEST LIKE - UPV, CARBONATION,REBOUND HAMMER, ANALYSIS OF TESTS INTERPRITATION OF TEST, CONFIRMATION OF RESIDUAL STRENGTH ETC.