EXECUTION OF BALANCE CIVIL WORKS IN ETP/STP AT CSL-ISRF

Cleaning of ETP/STP tanks including dewatering, removal of all debris, shuttering materials, and algae/vegetagion(if any), including disposal of debris at ISRF scrap yard including cost of all materials, equipments, labour, tools and tackles etc. all complete as directed by Engineer-in-charge. Note : This item shall be payable only once at start of work and subsequent cleaning & dewatering shall be carried out by contractor at no extra cost to CSL. Refer the photo attached at Appendix to BOQ

Cutting and removal of the projected tie rods, reinforcement rods and binding wires embedded in concrete inside ETP/STP underground tanks and repairing the concrete surface (using Sika Emaco S 348 make or equivalent) as per approved methodology (Annexure-1) including all labour, machinery, materials, incidental expenses all complete as directed by Engineer-In-Charge. Refer the photo attached at Appendix to BOQ

Carrying out repair works on construction joints of tank walls and other areas including honeycomb rectification (using Sika Emaco S 348 make or equivalent) with surface preparation, sealing, finishing and repairing all affected area as per approved methodology (Annexure-1) and specifications including cost of all machineries, materials, equipment, tools and tackles, labour, curing, etc. all complete as directed by Engineer-In-Charge. Refer the photo attached at Appendix to BOQ

Rectification of leakage of water from joints of intermediate walls inside ETP/STP tanks by injection grouting (using Injection packers, Foam Injection 101 IN and Resin injection 201 N of Sika make or equivalent) and making all concrete surfaces water tight including surface sealing and finishing etc. all complete as per approved methodology (Annexure-2) and specifications including cost of all machineries, materials, equipment, tools and tackles, labour, curing, incidental expenses etc. all complete as directed by Engineer-In-Charge. Refer the photo attached at Appendix to BOQ

Providing and casting in-situ Reinforced Cement Concrete in 1:1.5:3 nominal mix for intermediate slabs, walls, lintel, kerb and other locations as per approved drawing at all levels including shuttering, soffit shuttering, de-shuttering, providing cut-outs, compacting with mechanical vibrators, hacking, curing etc. including all materials, labour, formwork, other incidental expenses etc. all complete as directed by Engineer-in-charge. (Reinforcement shall be measured and paid separately under relevant item.) Refer the photo attached at Appendix to BOQ

Supplying, cleaning, cutting, bending, supporting, binding with double ply of 22 SWG soft annealed wire and placing in position High yield strength deformed TMT reinforcement bars conforming to IS:1786 of grade Fe 500D, of approved make / brand on /at all levels and locations as per drawings, including handling and transport complete for all RCC works including supplying & placing concrete cover block etc. including all material, equipments, labour, other incidental expenses etc. all complete as directed by Engineer-in-charge. (Only authorized laps, spacer bars, chairs embedded in the concrete will be measured for payments.)

Removal of damaged plastering on ETP/STP outside walls by suitable mechanical/manual means and disposal of debris at ISRF scrap yard area including all labour, machinery, incidental expenses all complete as directed by Engineer-In-Charge. Refer the photo attached at Appendix to BOQ

Plastering with 15 mm thick cement mortar 1:4 including providing and mixing of waterproofing compound as recommended by manufacturer (like Conplast WL XTRA of Fosroc or equivalent), including all labour, scaffolding, chipping, hacking and cleaning the concrete surface, watering, finishing, curing etc. as per approved specifications and all complete as directed by Engineer-In-Charge.

Providing and laying Solid concrete block masonry of 200/150/100 mm thick at all levels and locations using cement mortar 1:5 with approved quality blocks including raking of joints, curing, etc. including all materials, labour, equipments, incidental expenses etc. all complete as directed by Engineer-in-charge.