Repair To Rcc Structures In Cpcl Manali , Repair To Rcc Structures In Cpcl Manali , Providing And Fixing Double Scaffolding System On The Exterior Side , Up To Sevenstory Height Made With 40Mm Diam . S . Tube 1 . 5M Centre Horizontal &Vertical Tubes Joining With Cup & Locksystem With M . S . Tubes , M . S . Tubechallies , M . S . Clamps And M . S . Stair Casesystem In The Scaffolding For Workingplatform Etc . , And Maintaining It In Aserviceable Condition For Therequiredduration As Approved And Removing Ithere After . The Scaffolding System Shallbe Stiffened With Bracings , Runners , Connection With The Building Etc . Wherever Required Forinspection Of Workat Required Locations With Essentialsafety Features For The Workman Etc . Complete As Per Directions And Approvalof Engineer-In-Charge . The Payment Wll Be Made Once Irrespective Of Duration , Chipping Of Unsound / Weak Concrete Material From Slabs , Beams , Columnsetc . , With Standard Power Drivenpercussion Type Of Pneumatic Chisel Ofstandard Make As Directed By Engineerin Charge . Includig Tapering All Edgesmaking Square Shoulders Of Cavitiesremoving Concrete All Roundreinforcement Including From Behind Thereinforcing Bars To Give An Average25mm ( But Not Less Than 15Mm Clear Air Gap ) Upto 100 Mm Thick , Spray Mortar:Providing And Applying On The Exposedsurfaces Of Roof Slabs / Vertical Wallswith Single Component , Micro Silicaenhanced , High Strength Shotcretemortar Like Fosrocrenderoc Ds40 Or Equivalent Material Using Suitablepumping Devices And As Permanufacturers Specifications . Therepair Spray Mortar Shall Have Aminimum Compressivestrengthof 15Mpa After 24 Hours And 40 Mpa At 28Days , And Does Not Require Any Coat Ofpolymer Bonding Agent As A Primer . Item Rate Is Inclusive Of Materials , Alllabour , Supervision , Tools And Tacklesand Transportation Etc . Complete As Per Specifications And As Directed . ( Average 40Mm Thick ) , Providing And Fixing Special Water Tight Centering Including Bolting , Strutting , Propping , Etc . , So As To With Stand A Pressure Of 0 . 1Mpa Including Removal Of Forms For All Location Including Beams Columns Slabs , Walls , Foundations , Footings , Landings , Stairs , Balconies Etc , Providing And Placing In Position Micro Concrete Of Grade M55 With Graded Coarse Aggregates Of Maximum Size 12Mm Of Ratio 1:0 . 75 ( Mc : Agg ) If Repair Section Greater Than 50 Mm Depth , Which Shall Be Cement Based Pre-Packed Single Component Of Make Fosroc / Sika / Basf , Chloride Free , Non-Shrink , Free Flow , Self Compacting Ready To Use After Mixing Water In Specified Proportion Obtained From Approved Manufacturer As Per Specification And Direction Of Engineer In Charge In Columns , Beams , Roofs Etc By Pouring / Pumping / Making Pockets For Pouring . Curing Has To Be Carried Out Using Polymer Based Continuous Film Forming Curing Compound . , Mixing And Applying Bonding Coat , Exluding Cost Of Material , On Prepared Non Metallic Surface Of Parent Materialas Per Specifications And Direction Of Engineer -In -Charge Complete . , Supply Of Approved Epoxy ( Total Weight Of Resin & Hardener In Proportion Specified By Manufacturer ) Bonding Material For Prepared Non Metallic Surface . , Injecting Approved Epoxy ( Total Weight Of Resin And Hardener In Proportion Speified By Manufacturer ) Grout Into Crack/Honey Comb Areas Of Concrete By Suitable Gun/Pump Of Required Pressure Including Cutting The Nipples After Curing Etc . Complete As Per Directions Of The Engineer-In -Charge ( Payment Shall Be Made On The Basis Of Actual Weight Of Approved Grout Injected ) , Supply Of Approved Epoxy ( Total Weight Of Resin & And Hardener In Proportionspecified By Manufacturer ) Crack /Honey Combed Area Sealing Material/Admixture . , Applying Alkaline Passivating & Anticorrosive Coat Of Approved Epoxy Zinc Anti Corrosive Primer For Reinforcements , Excluding The Cost Of Material But Including Supplying And Sprinkling Silica Sand ( No . 10 ) Over Steel Reinforcement Duly Approved By Engineer In Charge . For Steel Reinforcement Bars Upto & Including 12Mm Diameter , Applying Alkaline Passivating & Anticorrosive Coat Of Approved Epoxy Zinc Anti Corrosive Primer For Reinforcements , Excluding The Cost Of Material But Including Supplying And Sprinkling Silica Sand ( No . 10 ) Over Steel Reinforcement Duly Approved By Engineer In Charge . For Steel Reinforcement Bars Above 16Mm Diameter , Supply Of Alkaline Passivating & Anticorrosive Coat Of Approved Epoxy Zinc Anti Corrosive Primer For Reinforcements ( Payment Shall Be Qty Of Resin Plus Hardener In Manufacturer Specified Proportion ) For Steel Reinforcement . , Introducing New Reinforcement Bar For Structural Connections In Rcc Beams , Lintels , Columns And Slabs Includingpower Drilling Holes Of Appropriatediameters In Reinforced Or Plain Cementconcrete A Minimum Depth Of 150Mmand Upto 200Mm Fixing Thereinforcement In Position Drilling Inconcrete , Epoxy Cartridges , Plasticnozzle Etc . , Complete Including Cleaningthedrilled Holes Of Loose Dust Byblowing Air . The Cost Of Reinforcementshall Be Payable Separately . Upto And Including For 12Mm Dia Reinforcing Bar . , Introducing New Reinforcement Bar For Structural Connections In Rcc Beams , Lintels , Columns And Slabs Includingpower Drilling Holes Of Appropriatediameters In Reinforced Or Plain Cementconcrete A Minimum Depth Of 150Mmand Upto 200Mm Fixing Thereinforcement In Position Drilling Inconcrete , Epoxy Cartridges , Plasticnozzle Etc . , Complete Including Cleaningthedrilled Holes Of Loose Dust Byblowing Air . The Cost Of Reinforcementshall Be Payable Separately . Above For 12Mm Dia Reinforcing Bar . , Providing And Inserting Mild Steel Shearkey Bars Levelling Gauge ( For Shorcreting ) Of Required Length And Diameter Inreinforced / Plain Concrete As Per Drawing And Directions Of Engineer-In-Charge Including Power Drilling Holes Of Appropriate Dia To A Minimum Depth Of Equal To 12 Times The Diameter Of Shear Key Bar / Levelling Gauge , Cleaning The Drilled Holes Of Loose Duty By Blowing , Insertion Of Epoxy From Cartridge , Placing The Shear Key Bar In Position And Allowing It To Stay Undisturbed For 24 Hours 12Mm And 300Mm Long ( The Projected Length Of Shear Key Shall Be More Than 10 Times Its Diameter Plus Half The Thickness Of Cover Concrete Plus Bendlength ) M . S . Shear Key . , Supplying And Placing In Position Hard Drawn Steel Wire Fabric Of 3Mm Dia . 50X50mesh @ 2 . 22Kg/Sq . M As Per Is:1566 Post Weld Hot Dipped Galvanized With Zn Loading Of 250 Gm/M2 , To Be Used As Reinforcement , Including Straightening , Cleaning , Cutting , Bending , Binding Different Portions With Contractors Own 16 Swg Black Soft Annealed Wire , Welding With Spacer Plates Or Lugs Provided With Skirts/On Surface Of Structural Steel Members Etc . Complete , Including Cleaning Of The Surface , Scaffolding For All Heights And All Labour And As Per Drawings/Sketches , Specifications And Directions Of The Engineer-In-Charge . , Placing In Position Ms Reinforcement ( Plain Round Bars ) And/Or Tor Steel For Rcc Work Including Transporting The Steel ( Issued Free Of Cost ) From Store/Issue Points To Site Of Work , Straightening , Cleaning & Removing Oil Grease If Any , Cutting , Bending To Required Shapes & Lengths As Per Details Binding With Contractors Own 16 Swg Black Soft Annealed Binding Wire At Every Inter-Section , Supplying & Placing With Proper Over Blocks , Supports , Chairs , Overlaps , Welding , Spacers Fan Hooks Etc . ( Return All Unused/Scrapped/ Unserviceable Steel To Owners Storage Point ) For All Heights & Depths Etc . All Complete As Directed . , Repairs To Plaster Of Thickness 12Mm To 20Mm In Patches Of Area 2 . 5 Sqm And Under Including Cutting The Patch In Proper Shape , Raking Out Joints And Preparing And Plastering The Surface Of The Walls Complete
