External repairs and painting works at North PDPM area in Kalpakkam Township during the year 2026-2027.

Earthwork in open / Surface Excavation not exceeding 300mm in depth but exceeding 1.5m in width as well as 10 sq.m on plan in all types of soil, mixture of gravel and disintegrated rock, hard stiff clay including grading and levelling neatly by breaking clods, disposal of excavated earth upto 50m lead & lift upto 1.5m, (Disposed soil to be levelled by breaking clods, if any and neatly dressed) etc., all complete as per specifications.

Clearing light jungle including uprooting of rank vegetation, grass, brush wood, removal of rubbish upto a distance of 100m outside the periphery of the area cleared, etc., all complete as per specification and as directed by Engineer-In-Charge.

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.

All kinds of soil upto 1.50mtr depth

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 40mm nominal size)

Steel Prop of up to 5 MT Capacity and up to 3.40 m height