Repair Work of CMRS Building and Blow Pot Area in U 200

UNSKILLED WORKER Unskilled Labour charges

Double scaffolding system -The elevational area of the scaffolding shall be measured for payment purpose. Providing and fixing double scaffolding system (cup lock type) on the exterior side, upto seven story hight made with 40 mm dia. M.S. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staricase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after. The scaffolding system shall be stiffened with bracings, runners, connection with the building etc wherever required for inspection of work at required location with essential safety features for the workmen etc. complete as per directions and approval of Engineer- in Charge. The elevational area of the scaffolding shall be measured for payment purpose. The payment will be made once irrespective of duration of scaffolding. Note:- This item to be used for maintenance work judicially, necessary deduction for scaffolding in the existing item to be done .

Double scaffolding system for Suspended Slab & ceiling Work The Elevational area of one length and one width side only will be measured Providing and fixing double scaffolding system (cup lock type) on the exterior side, upto seven story hight made with 40 mm dia. M.S. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staricase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after. The scaffolding system shall be stiffened with bracings, runners, connection with the building etc wherever required for inspection of work at required location with essential safety features for the workmen etc. complete as per directions and approval of Engineer- in Charge. The elevational area of the scaffolding shall be measured for payment purpose. The payment will be made once irrespective of duration of scaffolding. Note:- This item to be used for maintenance work judicially, necessary deduction for scaffolding in the existing item to be done .

Demolishing brick work Demolishing brick work manually / by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-Charge. In cement mortar

Dismantling old/weak plaster Dismantling old/weak plaster over masonry or skirting, raking out joints and cleaning the surface for plaster including tackles and disposal of rubbish to the dumping ground within 1kms lead

Chipping of unsound/weak concrete Chipping of unsound/weak concrete material from slabs, beams, columns etc.with manual Chisel and/ or by standard power driven percussion type or of approved make including tapering of all edges, making square shoulders of cavities including cleaning the exposed concrete surface and reinforcement with wire brushes etc. and disposal of debris for all lead and lifts, all complete as per direction of Engineer-In-Charge.

Centering and shuttering Centering and shuttering including strutting, etc. and removal of form for: Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc.

Applying Epoxy bonding adhesive including cleaning the corroded steel bars with wire brush. Providing, mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and direction of Engineer-In-charge complete in all respect. Epoxy bonding adhesive having coverage 2.20 sqm/kg of approved make

Drilling suitable holes Drilling suitable holes in reinforced or plain cement concrete with power driven drill machine to a minimum depth of 100mm upto 200mm in RCC beams, lintels, columns and slabs to introduce steel bars for sunshades/ balconies including fixing the steel bars in position using epoxy resin anchor grout of approved make but excluding the cost of reinforcement, all complete as per direction of Engineer-In-Charge. Upto and including 16mm dia.

Fixing nipples Providing and fixing nipples with approved fixing compound such as Renderoc Plug/Master seal 505/Cera Plug of make M/s Fosroc/BASF/Cera Chem respectively after drilling holes for grouting as per Technical Specifications including subsequent cutting/removal and sealing of the hole as necessary of nipples after completion of grouting with Cement.(Cement will be supplied by the company)

Injecting approved grout Providing and injecting approved grout in proportion recommended by the manufacturer into cracks/honey-comb area of concrete/masonry by suitable gun/pump at required pressure including cutting of nipples after curing etc. complete as per directions of Engineer-in-Charge. (The payment shall be made on the basis of actual weight of approved grout injected.) Stirrer mixed approved chemical such as cebex 100/Flowcable 50/Cera Expan 250 of make M/s Fosroc/BASF/Cera Chem respectively @ recommended proportion of weight of cement used) modified Cement slurry made with non-shrink compound in concrete/RCC work.(Excluding cost of Cement)

Fixing Steel reinforcement Fixing Steel reinforcement for R.C.C. work including straightening, cutting, bending,placing in position by welding and same to the existing reinforcement by binding with GI wire etc (Reinforcement rods required alone shall be supplied by the company free of cost at our stores.) Thermo - Mechanically Treated bars of grade Fe-500D or more

SS welded mesh Fixing departmentally supplied 16 gauge SS welded mesh having size 20x20 mm or nearest size firmly to columns and beams with concrete nails and plate washers at adequate spacing to cover the concrete surface prior to micro concreting at all levels as per the instruction of engineer in charge, including all cost of materials, conveyance, labour etc. complete.

Micro Concrete Providing and applying micro concrete over the chipped and cleaned exposed areahaving sufficient thickness (average 50mm) to receive the same with fluid micro concrete product, such as Renderoc RG/MasterEmaco S 346/Cera microconcrete of M/s Fosroc/BASF/Cera Chem or Similar respectively, with potable water, mixing by heavy duty slow speed electrically operated stirrer after pouring the water in a mixing vessel, mixed material shall be poured through the feed hopper into well positioned form work for the required thickness and all works as per manufactures specifications and as directed by the Engineer in charge, including curing, cost of materials, labour, conveyance etc, but excluding cost of form work, bonding agent, reinforcement and SS welded mesh. Only skilled and experienced persons shall be employed for this purpose.

Thixotropic non shrink repair mortar Providing and applying single component fibre reinforced thixotropic non shrink repair mortar such as BASF EMACO S48CT or FOSROC/BOSTIK product for columns, beams, slabs and other structural members with 4 ltrs of potable water per 25kg of product, mixing by heavy-duty, slow speed drill with spiral mixing paddle or a Pan type mixers etc. after pouring the water in a mixing vessel, mixed material shall be applied both by trowel or spray application and finished to get a uniform thickness and finish and all works as per manufactures specifications and as directed by the Engineer in charge, including curing, cost of materials, labour, conveyance etc, but excluding cost of form work, bonding agent, reinforcement and SS welded mesh. Only skilled and experienced persons shall be employed for this purpose.

SBR plastering Providing, mixing and applying SBR polymer (of approved make such as Nitobond SBR/SBR Reomix/Cera SBR Latex of M/s Fosroc/BASF/Cera Chem or Similiar respectively) modified Cement mortar in proportion of 1:4 (1 cement: 4 graded coarse sand with polymer as per manufactures specification ) including surface cleaning and application of bonding slurry to the prepared surface for proper adhesion as per manufacturers specificationas and directions of Engineer-incharge. Note: Measurement and payment: The pre-measurement of thickness shall bedone just after the surface preparation is completed and Payment under this item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding / tapping with a blunt metal instrument of 12 mm average thickness (Cement required shall be supplied by the company free of cost at our stores.)

SBR plastering above 5 m height Providing, mixing and applying SBR polymer (of approved make such as Nitobond SBR/SBR Reomix/Cera SBR Latex of M/s Fosroc/BASF/Cera Chem or Similiar respectively) modified Cement mortar in proportion of 1:4 (1 cement: 4 graded coarse sand with polymer as per manufactures specification ) including surface cleaning and application of bonding slurry to the prepared surface for proper adhesion as per manufacturers specificationas and directions of Engineer-incharge. Note: Measurement and payment: The pre-measurement of thickness shall be done just after the surface preparation is completed and Payment under this item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding / tapping with a blunt metal instrument of 12 mm average thickness (Cement required shall be supplied by the company free of cost at our stores.)

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