Miscellaneous repair and maintenance and improvement works at EnM substation and office at Darbhanga House Complex , CCL HQ., Ranchi.

Item Description/ Heading

Providing and laying rectified Glazed Ceramic floor tiles of size 300x300 mm or more (thickness to be specified by the manufacturer), of 1st quality conforming to IS : 15622, of approved make, in colours White, Ivory, Grey, Fume Red Brown, laid on 20 mm thick cement mortar 1:4 (1 Cement: 4 Coarse sand), jointing with grey cement slurry @ 3.3 kg/ sqm including grouting the joints with white cement and matching pigments etc., complete. (CCL SOR 2025 11.38)

Providing and fixing 1st quality ceramic glazed wall 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 of cement mortar 1:3(1 cement : 3 coarse sand) and jointing with grey cement slurry @ 3.3kg per sqm, including pointing in white cement mixed with pigment of matching shade complete. (CCL SOR 2025 8.31)

Providing, hoisting and fixing above plinth level up to floor five level precast reinforced cement concrete work in string courses, bands, copings, bed plates, anchor blocks, plain window sills and the like, including the cost of required centering, shuttering but excluding cost of reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources). (CCL SOR 2025 5.12)

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. Thermo-Mechanically Treated bars of grade Fe-500D or more. (CCL SOR 2025 5.22.6)

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 5.00 in foundation and plinth in: Cement mortar 1:6(1 cement :6 coarse sand) (CCL SOR 2025 6.1.2)

12 mm cement plaster finished with a floating coat of neat cement of mix: 1:4(1 cement: 4 fine sand) (CCL SOR 2025 13.7.2)

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:1.5:3 (1 Cement: 1.5 coarse sand (zone-Ill) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources) (CCL SOR 2025 4.1.2)

Providing and fixing on wall face unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS : 5382, leaving 10 mm gap for thermal expansion, (i) Single socketed pipes. 110 mm diameter (CCL SOR 2025 12.41.2)

Trimming of tree branches coming out of main trunk having girth 60 cm to 90 cm measured at knot of a main trunk.The avarage height of tree is 3.00 mtr and above. It also includes stacking of serviceable materials and disposal of unserviceable materials upt the lead of 300 mtrs as per direction of EIC.( based on actual observation at site) ( Ref: Sub Volume - V-14)

Providing and fixing ball bearing for rolling shutters. (CCL SOR 2025 10.7)

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. (CCL SOR 2025 15.7.4)

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 5.00 in superstructure above plinth level up to floor V level in all shapes and sizes in :Cement mortar 1:6(1 cement : 6 coarse sand) (CCL SOR 2025 6.4.2)

Half brick masonry with common burnt clay F.P.S. (non modular) bricks of class designation 5.00 in foundations and plinth in : cement mortar 1:4(1 cement :4 coarse sand) (CCL SOR 2025 6.13.2)

Reinforced cement concrete work in beams, suspended floors, roofs having slope up to 15 degree landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases above plinth level up to floor five level, excluding the cost of centering, shuttering, finishing and reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources). (CCL SOR 2025 5.3)

Centering and shuttering including strutting, propping etc. and removal of form for Lintels, beams, plinth beams, girders, bressumers and cantilevers (CCL SOR 2025 5.9.5)

12 mm cement plaster of mix: 1:6(1 cement: 6 fine sand) (CCL SOR 2025 13.1.2)

Finishing walls with water proofing cement paint of required shade:New work (Two or more coats applied @ 3.84 kg/10 sqm) (CCL SOR 2025 13.44.1)

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete. (CCL SOR 2025 10.2)

Painting with aluminium paint of approved brand and manufacture to give an even shade: One or more coats on old work (CCL SOR 2025 13.100.1)

Painting with aluminium paint of approved brand and manufacture to give an even shade. Two or more coats on new work (CCL SOR 2025 13.63.1)

Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead. (CCL SOR 2025 15.56)

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge.Nominal concrete 1:3:6 or richer mix (including equivalent design mix) (CCL SOR 2025 15.2.1)

Dismantling doors, windows and clerestory windows (steel or wood) shutter including chowkhats, architrave, holdfasts etc. complete and stacking within 50 metres lead :Of area 3 sq. metres and below (CCL SOR 2025 15.12.1)

Taking out doors, windows and clerestory window shutters (steel or wood) including stacking within 50 metres lead : Of area 3 sq. metres and below (CCL SOR 2025 15.13.1)

Providing and fixing M.S. grills of required pattern in frames of windows etc. with M.S. flats, square or round bars etc. including priming coat with approved steel primer all complete. Fixed to openings /wooden frames with rawl plugs screws etc. (CCL SOR 2025 9.48.2)

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade : Two or more coats on new work (CCL SOR 2025 13.61.1)

Finishing walls with Acrylic Smooth exterior paint of required shade: New work (Two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/10 sqm) (CCL SOR 2025 13.46.1)

Wall painting with acrylic emulsion paint, having VOC (Volatile Organic Compound ) content less than 50 grams/ litre, of approved brand and manufacture, including applying additional coats wherever required, to achieve even shade and colour. Two coats (CCL SOR 2025 13.82.2)

Cement concrete flooring 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate) finished with a floating coat of neat cement, including cement slurry, but excluding the cost of nosing of steps etc. complete. 40 mm thick with 20 mm nominal size stone aggregate (CCL SOR 2025 11.3.1)

Providing and laying 60 mm thick faciory made cement concrete interlocking paver block of M -30 grade made by block making machine with strong vibratory compaction, of approved size, design & shape, laid in required colour and pattern over and including 50 mm thick compacted bed of coarse sand, filling the joints with line sand etc. all complete as per the direction of Engineer-in-charge. (CCL SOR 2025 16.68)

Grading roof for water proofing treatment with Cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) (CCL SOR 2025 22.14.1)

Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer, 3 mm thick water proofing membrane, black finished reinforced with glass fibre matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by the same membrane manufactured of density at 25°C, 0.87 - 0.89 kg/litre and viscocity 70 - 160 cps. Over the primer coat the layer of membrane shall be laid using butane torch and sealing all joints etc., and preparing the surface complete. The vital physical and chemical parameters of the membrane shall be as under : Joint strength in longitudinal and transverse direction at 23°C as 350/300 N/5 cm. Tear strength in longitudinal and transverse direction as 60/80N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacturer of membrane : 3 mm thick (CCL SOR 2025 14.90.1)

Carriage of Materials By Mechanical Transport including loading,unloading and stacking Lime, moorum, building rubbish Lead - 5 km (CCL SOR 2025 1.1.1)

Providing and fixing ISI marked flush door shutters conforming to IS : 2202 (Part I) non-decorative type, core of block board construction with frame of 1st class hard wood and well matched commercial 3 ply veneering with vertical grains or cross bands and face veneers on both faces of shutters: 30 mm thick including ISI marked Stainless Steel butt hinges with necessary screws (CCL SOR 2025 9.21.2)

Providing wood work in frames of doors, windows, clerestory windows and other frames, wrought framed and fixed in position with hold fast lugs or with dash fasteners of required dia & length (hold fast lugs or dash fastener shall be paid for separately). (CCL SOR 2025 9.1.2)

Reinforced cement concrete work in beams, suspended floors, roofs having slope up to 15 degree landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases above plinth level up to floor five level, excluding the cost of centering, shuttering, finishing and reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources). (CCL SOR 2025 5.3)

Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth up to 30 cm measured at a height of 1 m above ground level and removal of rubbish up to a distance of 50 m outside the periphery of the area cleared. (CCL SOR 2025 2.31)

Applying priming coats with primer of approved brand and manufacture, having low VOC (Volatile Organic Compound ) content.With ready mixed pink or grey primer on wood work (hard and soft wood) having VOC content less than 50 grams/ litre (CCL SOR 2025 13.85.1)

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