Retrofitting and painting of CISF Barrack in Kalpakkam Township.

Providing and fixing double scaffolding system (cup lock type) on the exterior side at all height made using 40mm diameter M.S. tube spaced @ 1.5m center to center at both horizontal and vertical joining with cup and lock system with M.S.tube, M.S.tube challies, M.S clamps and M.S staircase system in the scaffolding for working platform etc., including maintaining it in a serviceable condition for the required duration as approved, removing after completion of repair works, the scaffolding system shall be stiffened with bracings, runners connection with the building, etc., wherever required for essential safety features for the workmen, etc., all complete as directed by Engineer-in-charge. Note: 1) The elevational area of the scaffolding shall be measured for payment purpose. The payment will be made once irrespective of duration of scaffolding. 2) The buildings are of Ground+ 2 storeyed structure and the contractor has to observe all safety procedure while working on heights as per I.S. 3696 (Part-I) - 1987. (Safety Code for scaffolds). 3) All working platform must be of minimum 600 mm wide, made of M.S pipe and must have guard rails as per specification. 4) Screen of suitable material shall be provided to the full height of scaffolding and securely tied to protect falling objects coming out during the repair work is in progress. 5) To protect workers on lower platform against falling objects from higher level over head protection should be provided on the scaffolds. 6) Necessary aluminium/ M.S. ladder shall be provided at the cost of the contractor, to the full height of scaffolding at required location around the building to enable Departmental Supervisor/Engineer climb up and closely watch the repair work of the building.

1 : 2 : 4 (1 cement : 2 sand : 4 graded stone aggregate 20mm nominal size)

1 : 3 : 6 (1 cement : 3 sand : 6 graded stone aggregate 20mm nominal size)

Steel Prop of up to 5 MT Capacity and up to 3.60 m height

Providing, erecting, placing in position and removing Formwork for all insitu concrete works at all lifts and all shapes such as circular works, chamfers, splays, etc., using Steel / Plywood shuttering including centering, scaffolding, strutting, propping with necessary bracing in all areas, fixing of EPs, cutting holes and fixing pipe sleeves, applying of approved form oil over surface in contact with concrete, de-shuttering after specified curing period, etc., all complete as per drawings and specifications. (Note : Measurement for the formwork shall be the area of forms in contact with concrete surfaces. Stop boards for construction joints will not be measured seperately for payment).

Providing, cutting, bending, placing and binding steel reinforcement using TMT bars of Fe-500 / Fe-500D grade in all reinforced cement concrete works including preparation of bar bending schedules, cutting, bending, fixing, tieing in position with 1.6 mm dia soft drawn annealed binding wire, welding of reinforcement to existing steel reinforcement/ shear connectors, cost of cover blocks in C.M 1:2, etc., complete as per specifications and as directed by Engineer-In-Charge. Important Note: The required quantity of steel reinforcement as mentioned in the schedule should be procured by the contractor only of SAIL, Rashtriya Ispat Nigam Limited (VIZAG), TATA Steel & JINDAL from authorised dealers which shall conform to IS: 1786 (Latest Edition).

Manufacturing, supplying, hoisting and fixing in position at all lifts, precast units of various patterns and sizes for precast plain solid units, slabs, exhaust fan moulds etc., in reinforced cement concrete of 1:1.5:3, using 20mm and below machine crushed graded stone aggregate and crushed stone sand including weigh batching, mechanical mixing, casting, vibrating, finishing of exposed faces, curing, necessary formwork & moulds, transporting and placing at all lifts, preparation of connections, grouting with cement mortar/cement grout wherever needed excluding steel reinforcement complete all as per drawing, specification and as directed by Engineer-in-Charge.

Providing and constructing brick masonry at all lifts in cement mortar 1:5 using well cured flyash bricks of class 5 (non-modular) made up of using Flyash + Sand + Lime + additves (Gypsum/Cement) with waterproofing chemicals and accelerators confirming to IS-12894 or latest edition including suitable scaffolding, raking out joints, continuous curing for specified period, etc., all complete as per specifications and drawings.