Rashtriya Chemicals And Fertilizers Limited Tender

REMOVING EXISTING CORROSION MANUALLY/ MECHANICALLY IN M.S./TOR BARS BY MEANS OF SUITABLE LIGHT TAPING, WIRE BRUSHING MECHANICAL GRINDER, WASHING AND DRYING EXPOSED SURFACES INCLUDING CHIPPING RCC BEYOND MAIN REINFORCEMENT, PROVIDING AND APPLYING 2 COATS OF APPROVED RUST PASSIVATOR TO EXPOSED BAR, SCRAPPING REINFORCING BARS AGAIN AND APPLYING `POLYALK FIXOPRIME" OR OTHER APPROVED BRAND AS PER RELEVANT CODE APPROVED BY RCF ETC. TYING AND FIXING MISPLACED REINFT. AT REQUIRED POSITION BY U CLIPS, BINDING WIRES ETC. COMPLETE (MEASUREMENT SHALL BE GIVEN FOR 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)

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)

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, STAGING, ETC., COMPLETE AS PER DETAILED MANUFACTURERS SPECIFICATIONS . MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(SCHEME FOR LOCATION OF SACRIFICIAL ANODE SHALL BE GOT APPROVED BEFORE FIXING FROM EIC).PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS.

ADDITIONAL REINFORCEMENT: PROVIDING, CUTTING, BENDING AND FIXING IN POSITION AT ALL HEIGHTS STEEL REINFORCEMENT OF SPECIFIED/REQUIRED SIZES AND SHAPES IN THE FORM OR MAIN REBARS, STIRRUPS & RINGS, DISTRIBUTION REBARS ETC. (TMT FE - 500 D BARS FOR ALL DIAMETERS CONFIRMING TO IS 1786) , AND TYING THEM TO SHEAR CONNECTORS USING GI BINDING WIRE., INCLUDING TRANSPORTING, HANDLING ETC. COMPLETE.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 VISCOS HIGH MOLECULAR WEIGHT THERMOSETT POLYMER GROUT AS MONOPOL OR EQUIVALENT GROUT INTO CONCRETE WORK FOLLOWED BY EPOXY GROUT BY SUITABLE GUN/ PUMP AT REQUIRED PRESSURES, WITH MECHANICALLY DRIVEN PUMP AFTER DRILLING AND INSERTING GROUTING MULTI PERFORATED NIPPLES UPTO REQUIRED DEPTH, USING `M SEAL AROUND THE NIPPLE AND CUTTING OF NIPPLES AFTER CURING, CLEANING AND SEALINGWITH EPOXY PUTTY ETC. AS DIRECTED BY EIC COMPLETE . (THIS ITEM SHALL BE PAID ON ACTUAL CONSUMPTION OF GROUTING MATERIAL USED IN KGS.).MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS)

INJECTION GROUTING HIGH PERFORMANCE POLYMER CEMENT GROUT: PROVIDING & INJECTING HIGH PERFORMANCE NON SHRINK, ANTI- WASHOUT POLYMER CEMENT GROUT PER PACK OF 225GM FOR 50KG BAG OF CEMENT AS PER MANUFACTURER’S SPECIFICATIONS INTO HONEYCOMBING AREA / POROUS CONCRETE WITH SUITABLE PUMP AT PRESSURE OF 2.0 KG/CM2 INCLUDING PROVIDING AND FIXING WORK AND SUBSEQUENTLY CUTTING /REMOVAL OF NOZZLES AND SEALING OF HOLES WITH GROUT ETC., COMPLETE.MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PAYMENT SHALL BE DONE ON BASIS OF CEMENT BAG CONSUMPTION). PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS.

BOND COAT: PROVIDING & APPLYING ONE COAT OF STRUCTURAL GRADE EPOXY BOND COAT BY BRUSH CONFORMING TO ASTM-C-882-87 TO THE PREPARED CONCRETE SURFACE TO BE REPAIRED / STRENGTHENED. THIS IS APPLIED PRIOR TO GUNITING TREATMENT OR AS DIRECTED BY EIC COMPLETE.MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(ENVISAGED FOR BEFORE APPLICATION OF SPRAYABLE MORTAR AND AS DIRECTED BY ENGINEER IN CHARGE).APPLICATION AREA TO BE APPROVED BEFORE START OF JOB BY EIC.PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS.

REPAIRING OF DAMAGED RCC MEMBERS LIKE COLUMNS, SLABS, CHAJJAS, FINS, LINTELS, PARDIS, BEAMS BY "POLYMER MODIFIED MORTAR" INCLUDING APPLYING BONDING COAT OF "POLYALK EP OR EQUIVALENT BRAND IN REQUIRED PROPORTION (AS PER MANUFACTURER'S RECOMMENDATIONS) IN LAYERS FOR BUILT UP THICKNESS OF 30MM (INCL.+-5MM). THE RATES SHALL BE MIXING POLYMER MORTAR IN MIXERS, COMPACTING MORTARS BY HAND HELD VIBRATORS, CURING ETC. COMPLETE. (USE POLYMER: CEMENT:QUARTZ SAND IN PROPORTION 1:5:15 )OR READYMADE PMM AS PER MANUFACTURING SPECIFICATION.MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(AREA OF APPLICATION SHALL BE GOT APPROVED FROM ENGINEER IN CHARGE).PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS

PROVIDING AND APPLYING SPRAYABLE POLYMER MODIFIED READY MIX MICRO CONCRETE 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 READY MIX 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 TOOLS, TACKLES ARRANGEMENT ETC COMPLETE AS DIRECTED BY EIC.MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(IF SPRAYABLE MORTAR IS NOT POSSIBLE DUE TO SITE CONDITIONS /CONSTRAINT PMM MAY BE PERMITTED WITH DEDUCTION OF 15% RATE).PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS.

SHEAR CONNECTORS: MAKE 10/12 MM DIA HOLES USING HEAVY DUTY ELECTRICALLY OPERATED HAMMER DRILLS IN THE CONCRETE OF RCC MEMBERS TO A DEPTH OF ABOUT 75 MM , CLEAN THE HOLES USING AIR JET AND FIX PRE-FABRICATED 100 X 50 MM L-SHAPE 8 MM DIA REBAR USING EPOXY PUTTY/EPOXY ANTI CORROSIVE PROTECTIVE COATING SO THAT 75 MM OUT OF 100 MM IS INSERTED INSIDE THE CONCRETE AND 25 MM REMAIN OUTSIDE ALONG WITH 50 MM BEND OR AS DIRECTED BY ENGINEER IN CHARGE. (EPOXY PUTTY AND EPOXY TO BE GOT APPROVED BEFORE APPLICATION AND ITS RATE IS INCLUDED IN THIS ITEM ).PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS.

PROVIDING AND APPLYING EPOXY MORTAR FOR REPAIRS TO CRACKED PORTIONS OF RCC COLUMNS, PIERS, BEAMS, GIRDERS, WALS, DIAPHRAGMS, SLABS, PARAPETS ,CUTTING VGROVE/WIDENING THE EXISTING CRACK OF SIZE 8 TO 15 MM AND DEPTH UPTO 25 MM BY GRINDER WHEREVER APPLICABLE OR SUITABLE APPROVED METHOD , CLEAN,WASH, BLOW THE SURFACE AND REMOVING THE RUST THOROUGHLY AND COMPLETELY BY MEANS OF WIRE BRUSHES FROM REINFORCEMENT , PRESSURE BLOWER AND WASHING WITH WATER ETC AND APPLICATION OF CORROSION REMOVER. REBUILDING THE SECTION BY FIRST APPLYING ONE COAT OF EPOXY PRIMER COAT , APPLYING EPOXY MORTAR PREPARED BY MIXING RESIN, HARDENER AND QUARTZITE SAND IN 1 PART RESIN: 0.3 OR 0.4 OR 0.5 OR 0.6 PART HARDENER : 7 OR 8 OR 9 PART QUARTZITE SAND PROPORTION BY WEIGHT OR AS PER MANUFACTURER SPECIFICATIONS IN REQUIRED SHAPE AND ARCHITECTURAL FINISHES, IF ANY, FINISHING THE SURFACE SMOOTH INCLUDING APPLYING A SEAL COAT OF RESIN AND HARDENER IN 100:50(OR AS PER MANUFACTURER PROPORTION) PROPORTION BY WEIGHT WITH STIFF NYLON BRISTLE BRUSH ETC. COMPLETE AS SPECIFIED AS DIRECTED. (PAYMENT WILL BE MADE ON ACTUAL CONSUMPTION OF EPOXY ONLY I.E. RESIN AND HARDENER ).WEIGHMENT OF MATERIAL TO BE DONE AT RCF WEIGH BRIDGE DURING GATE ENTRY.MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.KINDLY NOTE THE ITEM INVOLVES CHIPPING CONCRETE,REINFORCEMENT CLEANING AND APPLICATION OF CORROSION REMOVER ALONG WITH PROVIDING AND APPLYING OF EPOXY PRIMER, PUTTY BEFORE APPLICATION OF EPOXY MORTAR AND THEN PROVIDING AND APPLYING EPOXY MORTAR (RESIN AND HARDENER AS PER RATIO MENTIONED IN THIS ITEM PRIOR APPROVED BY EIC). AFTER REPAIRS EPOXY SEAL COAT TO BE APPLIED.PAYMENT WILL BE MADE AS PER ACTUAL CONSUMPTION OF EPOXY(RESIGN AND HARDENER) FOR WHICH CONTRACTOR HAS TO DO WEIGHMENT AT RCF WEIGH BRIDGE AT MATERIAL GATE.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS)

CHEMICAL RESISTANT PROTECTIVE COATING TO INTERNAL WALL: PROVIDING, AND APPLYING NON-TOXIC, SOLVENT FREE, NOVOLAC EPOXY RESIN BASED COATINGS IN TWO COATS AT THE RATE OF 0.25 LITRE PER SQM PER COAT INCLUDING PRIMER COAT AT THE RATE OF 0.15 LITRE PER SQM PER COAT OF APPROVED MAKE AND SHADE AND SHALL BE APPLIED ON THE CONCRETE SURFACE INCLUDING NECESSARY SURFACE PREPARATION . ITEM RATE INCLUSIVE OF ALL MATERIALS, LABOURS, SUPERVISION, TOOLS, TACKLES, TRANSPORTATION, ETC., COMPLETE AS PER SPECIFICATION AND AS DIRECTED BY EIC. WITH PRIOR APPROVAL OF EIC.MATERIAL MANUFACTURER TO BE AS PER RELEVANT CODES AND PRIOR APPROVAL FROM RCF TO BE TAKEN.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS)

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.(PLEASE REFER NIT CONDITIONS FOR APPROVAL OF MATERIALS)

PROVIDING AND FIXING APP POLYMER MODIFIED BITUMINOUS MEMBRANE 3 MM. THICK (WT: 3.5 TO 4.0 KG/SQ.M.) WITH POLYESTER CORE & COLOUR (RED/GREEN/GREY) MINERAL UPPER FINISH FOR WATER-PROOFING AFTER APPLICATION OF COMPATIBLE MODIFIED BITUMINOUS PRIMER @ MIN. 0.25 LTR. / SQ.M. BY THE MEMBRANE MANUFACTURER, TO TERRACE PARAPET WALL INSIDE & OUTSIDE FROM TOP WITH ALL LEADS AND LIFTS IN ONE PIECE WITH TRANSVERSE LAPPING OF MIN. 75 MM. ETC. COMPLETE, AS PER MANUFACTURER’S SPECIFICATIONS AND AS DIRECTED BY EIC.THE RATES INCLUDES MAKING SAFETY ARRANGEMENTS FOR ENTRY ON TOP OF MACHINE ROOM BY MAKING MANUAL ENTRY BY DISMANTLING OF WALL CONCRETE WORK AND RECASTING THE SAME E AS DIRECTED BY EIC TC COMPLETE.(LOCATION-PRILLING TOWER LIFT WELL TERRACE)

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. THIS DESCRIPTION SHALL BE READ ALONG WITH SCOPE OF WORK PARA-06 OF ANNEXURE-XX OF NIT