Comprehensive Upkeeping and Maintenance of Power House Stage-II (Civil Works) for a Period of Two Years, Including Routine and Preventive Maintenance of Civil, Electrical, and Plumbing Installations, Minor and Major Repair Works, Cleaning and Houseke

All kinds of soil

Ordinary rock

1:1½:3 (1 cement :1½ coarse sand: 3 graded stone aggregate 20 mm nominal size)

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

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

1:4:8 (1 cement : 4 coarse sand : 8 graded stone aggregate 40 mm nominal size)

Reinforced cement concrete work in beams, suspended floors, roofs having slope upto 15°, landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases upto five level including curing but excluding the cost of centring, shuttering, finishing and reinforcement with 5.3.1 1:1½:3 (1 cement : 1½ coarse sand : 3 graded stone aggregate 20 mm nominal size)

Reinforced cement concrete work in walls (any thickness) including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts upto floor five level including curing but excluding cost of centering shuttering, finishing and reinforcement. 1:1½:3 (1 cement : 1½ coarse sand : 3 graded stone aggregate 20 mm nominal size