HWPT/CIVIL/PLANT/03/2023

Amount

Providing and fixing double scaffolding system (cup lock / clamp type) on the exterior side of building / structure, up to 10 metres above ground level, including additional rows of scaffolding in stepped manner as per requirement of site, made with 40 mm dia M.S. tube, placed 1.5 m centre to centre, horizontal & vertical tubes joint with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for execution of indented works for required duration as approved and removing it thereafter.The scaffolding system shall be stiffened with bracings, runners, connecting with the building etc.., wherever required, if feasible, for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and approval of Engineer. Note: (1) The elevational area of the scaffolding shall be measured for payment purpose. (2) The payment will be made once only for execution of this item of work irrespective of duration of scaffolding.

Chipping unsound/weak concrete material from all RCC members such as 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 steel with wire brushes, disposal of debris near plant main gate by mechanical means etc., all complete at all levels as per specifications and as directed by the Engineer. 2.1) 25 mm average thickness

50mm average thickness

75mm average thickness

Providing, mixing and applying Nitozinc primer (epoxy based-Fosroc brand) over exposed surface area of reinforcing bars in all RCC members including cleaning rust from the reinforcing steel bars to give it a total rust free steel surface by manual / mechanical means etc., all complete at all levels as per manufacturer's specifications and as directed by the Engineer. 3.1) Bars upto 12 mm diameter

Bars above 12 mm diameter

Providing, mixing and applying epoxy resin concrete bonding coat using Nitobond EP (Fosroc brand) on chipped surface area of all vertical/horizontal RCC members including surface preparation etc., all complete at all levels as per manufacturer's specifications and as directed by the Engineer.

Providing, mixing and applying shrinkage controlled, polimer modified, fibre reinforced cementitious repair mortar using Renderoc SP40 (Fosroc brand) on spalled/de-laminated portion of all vertical/horizontal RCC members including surface preparation,curing etc., all complete at all levels as per manufacturer's specifications and as directed by the Engineer. 5.1) 25 mm average thickness in two layers.

50 mm average thickness in three layers.

75 mm average thickness in four layers.

Providing and applying two or more coats of Asian brand acrylic smooth exterior emulsion APEX in approved shade over a coat of Asian brand exterior wall primer, on finished surface of RCC members in even shade, doing necessary repair to scratches, filling cracks using birla wall care putty, preparing the entire surface smooth and fit for primering, cleaning etc.., all complete at all levels as per specifications and as directed by Engineer.

R.S CONSTRUCTION