Replacement of damaged 6 feet high boundary wall with new 8 feet high boundary wall in 33KV yard at 220 KV sub station BBMB Delhi

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. 2.8.1 All kinds of soil. (Ref: 2.8.1 of DSR 2023.)

Cement Concrete 1:6:12 with stone aggregate 40 mm gauge, mixing by mechanical means using concrete mixer volumetric type. (AOR.)

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in: Cement mortar 1:4 (1 cement : 4 coarse sand) (Ref: 6.1.1 of DSR 2023.)

Providing and laying damp-proof course 40 mm thick with cement concrete 1:2:4 ( 1 Cememt: 2 coarse sand (Zone III) derived from natural sources: 4 graded stone aggregate 12.5 mm nominal size derived from natural sources. (Ref: 4.10 of DSR 2023)

Providing & applying a coat of residual petroleum bitumen of grade of VG-10 of approved quality using 1.7kg per square metre on damp proof course after cleaning the surface with brushes and finally with apiece of cloth lightly soaked in kerosene oil. (Ref: 4.13 of DSR 2023.)

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 : Cement mortar 1:4 (1 cement : 4 coarse sand) (Ref: 6.4.1 of DSR 2023.)

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: 1:2:4 (1 Cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources) (Ref: 4.2.3 of DSR 2023.)

Pointing on brick work or brick flooring with cement mortar 1:3 (1 cement: 3 fine sand) : Flush / Ruled/ Struck or weathered pointing. (Ref: 13.31.1 of DSR 2023.)

20 mm Cement Plaster 1:4 ( 1 cememt : 4 coarse sand) (Ref: 13.6.1 of DSR 2023.)

Structural steel work in single section, fixed with or without connecting plate,including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete (Ref: 10.1 of DSR 2023.)

Welding by gas or electric plant including transportation of plant at site etc. complete. (Ref: 10.22 of DSR 2023.)

Providing and fixing concertina coil fencing with punched tape concertina coil 600 mm dia 10 metre openable length ( total length 90 m), having 50 nos rounds per 6 metre length, upto 3 m height of wall with existing angle iron 'Y' shaped placed 2.4m or 3.00 m apart and with 9 horizontal R.B.T. reinforced barbed wire, stud tied with G.I. staples and G.I. clips to retain horizontal, including necessary bolts or G.I. barbed wire tied to angle iron, all complete as per direction of Engineer-in-charge, with reinforced barbed tape(R.B.T.) / Spring core (2.5mm thick) wire of high tensile strength of 165 kg/ sq.mm with tape (0.52 mm thick) and weight 43.478 gm/ metre (cost of M.S. angle, C.C. blocks shall be paid separately) (Ref: 16.53 of DSR 2023.)

Finishing walls with acrylic smooth exterior paint of required shade : New work (Two or more coats applied @ 1.67 ltr/10 sqm)over and including priming coat of exterior primer applied@ 0.90ltr/10 sqm (Ref: 13.44.1 of DSR 2023.)

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade: (Ref: 13.62 of DSR 2023.)

Demolishing brick work manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge. In cement mortar (Ref. : 15.7.4 of DSR-2023)

Removing mortar from bricks and cleaning bricks including stacking within a lead of 50 m (stacks of cleaned bricks shall be measured): From brick work in cement mortar (Ref.:15.8.3 of DSR-2023)

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge. Nominal concrete 1:4:8 or leaner mix (i/c equivalent design mix) (Ref.:15.2.2 of DSR-2023)