Annual civil maintenance of Narwapahar Township

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead up to 50 m and lift up to 1.5 m, as directed by Engineer-in-charge. All Kind of Soil

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20 cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift up to 1.5 m.

Providing and laying cement concrete in retaining walls, return walls, walls (any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks, plain window sills, fillets, sunken floor etc., up to floor five level, excluding the cost of centering, shuttering and finishing a) 1 ratio 3 ratio 6 (1 cement , 3 coarse sand , 6 20 mm stone aggregate nominal size)

Centering and shuttering including strutting, propping etc. and removal of form for a) Suspended floors, roofs, landing, balconies and access platform

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete up to plinth level. a) Thermo-Mechanically Treated bars of grade Fe-500D or more.

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in superstructure above plinth level up to floor V level in all shapes and sizes in. a) Cement mortar 1 ratio 6 (1 cement, 6 coarse sand)

15 mm cement plaster on the rough side of single or half brick wall of mix 1 ratio 6 (1 cement , 6 fine sand)

Neat cement punning.

40 mm thick marble chips flooring, rubbed and polished to granolithic finish, under layer 31 mm thick cement concrete 1 ratio 2 ratio 4 (1 cement , 2 coarse sand , 4 graded stone aggregate 12.5 mm nominal size) and top layer 9 mm thick with white, black, chocolate, grey, yellow or green marble chips of sizes from 4 mm to 7 mm nominal size laid in cement marble powder mix 3 ratio1 (3 cement , 1 marble powder) by weight in proportion of 4 ratio 7 (4 cement marble powder , 7 marble chips) by volume, including cement slurry etc. complete. White cement without any pigment

Providing and fixing 1st quality ceramic glazed floor tiles conforming to IS, 15622 (thickness to be specified by the manufacturer) of approved make in all colours, shades except burgundy, bottle green, black of any size as approved by Engineer-in-charge in skirting, risers of steps and dados over 12 mm thick bed or cement Mortar 1 ratio 3 (1 cement , 3 coarse sand) and jointing with grey cement slurry at 3.3 kg per sqm including pointing in white cement mixed with pigment of matching shade complete.