Maintenance of services under NA-II, Rohini zone.

Providing and placing in position 100 mm thick site-cast, machine-batched and machine-mixed RCC rectangular covers over footpath drains and inspection chambers, using M-30 grade cement concrete, including centering and shuttering, reinforcement with 12 mm diameter Fe-500 grade TMT bars spaced at maximum 100 mm c/c in both directions, neat cement punning on finished surface, properly encased on all edges with 1.6 mm thick, 100 mm wide MS sheet duly painted over priming coat, reinforcement to be welded at edges with MS sheet and providing 2 Nos. 16 mm diameter bars as hooks per 0.60 sqm size of cover for lifting, neat cement punning on the finished surface, and including all costs of materials, labor, cartage, handling, all leads and lifts, complete in all respects as per the direction of the Engineer-in-Charge. The item includes casting cover so as to cover the opening as per requirement of site and as per direction of Engineer-in-charge.

Providing, and placing at site portable octagonal signboard of 900 mm size. The signboard shall be fabricated using ACP (Aluminium Composite Panel) or any other suitable material, with high-intensity prismatic retroreflective sheeting affixed on its surface. The signboard shall be mounted on a vertical post made of M.S. angle section (40 × 40 × 4 mm) with a height of 3650 mm. The post shall be supported on a tyre base or any other suitable stable platform to prevent overturning. The entire assembly shall be self-stable and portable, requiring no fixing to the ground. The contractor shall ensure that the signboard shall be installed at any required location within 30 minutes of identifying a hazardous site condition as per direction of Engineer-in-charge. The item includes all handling, transportation, and shifting of the signboard from one location to another as required during the entire duration of the work. One-time payment shall be made for providing and maintaining the signboard from commencement to completion of the project, irrespective of the number of relocations. Upon completion of the work, the signboard shall remain the property of the contractor.

Providing, supplying, and placing at site a portable triangular warning signboard of 900 mm size The signboard shall be fabricated using ACP (Aluminium Composite Panel) or any other suitable material, with high-intensity prismatic retroreflective sheeting affixed on its surface. The signboard shall be mounted on a vertical post made of M.S. angle section (40 × 40 × 4 mm) with a height of 3650 mm. The post shall be supported on a tyre base or any other suitable stable platform to prevent overturning. The entire assembly shall be self-stable and portable, requiring no fixing to the ground. The contractor shall ensure that the signboard shall be installed at any required location within 30 minutes of identifying a hazardous site condition as per direction of Engineer-in-charge. The item includes all handling, transportation, and shifting of the signboard from one location to another as required during the entire duration of the work. One-time payment shall be made for providing and maintaining the signboard from commencement to completion of the project, irrespective of the number of relocations. Upon completion of the work, the signboard shall remain the property of the contractor.

Providing and fixing R.C.C. name board of standard design including painting two or more coats with white zinc paint over priming coat. a) Flat without post for two directions

Lettering with black Japan paint of approved brand and manufacture

Providing, stacking, laying and rolling of cut back based instant bituminous ready mix concrete evaluated and pre tested by any Govt. Lab or institute. The material should be duly packed in 25/50kg and the rates are include cartage,loading, unloading, spreading and compating with rammer/plate vibrator at site of work, all complete as per direction of Engineer-in-charge.

Providing and laying 75 mm thick compacted bed of dry brick aggregate of 40 mm thick nominal size including spreading, well ramming, consolidating and grouting with jamuna sand, including finishing smooth etc. complete as per direction of Engineer-in-charge.

Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana / Ordinary Portland /Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering, finishing and reinforcement as per direction of the engineer-in-charge; for the following grades of concrete. a) All works upto plinth level i) Concrete of M25 grade with minimum cement content of 330 kg /cum

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