Bharat Sanchar Nigam Limited Tender

Smooth finishing of the exposed surface of RCC with 6 mm thick cement mortar 1:3 (1 cement :3 fine sand)

Drilling hole in hard granite/RCC using pneumatic percussion rotary drill and forming rough side bore holes of uniform size and alignment including making the hole free from debris, dust by flushing, etc. and disposal of the rubbish as directed by the Engineer-in-Charge:- (a) 20 mm dia

Supply and filling polyster resin grout of approved quality (Lokset-S of Fosroc or equivalent) in bore holes of 20mm dia and alround anchorage reinforcement bars, after completely cleaning the holes free from dust including degreasing the anchoring bars and removing any flaky rust, if present, etc. complete. Resin and catalysed filler to be mixed in one operation. The rate is inclusive of all labour charges and material cost:- (a) 20mm dia bore holes

Supplying at site MS sections for four legged roof top pole antenna mount structure consisting of Ms pipes and MSangles and plates anchorage sections of required dimensions etc, with flanges and gusset plates with bolt holes welded to the poles and angles as per the approved drawing of required dimensions including all material & welding cost, transportation etc complete ( excluding lifting to roof top) as directed by the Engineer in Charge)

Extra for using GI sections, ie angles, plates, flats etc instead of MS sections ie, angles , plates and flats for executing work vide item No.7

Supplying and fixing 20mm dia MS anchor bolt 550mm long with 125mm thread in one side for fixing to tower legs with GI double nuts, spring&pack washers and 100x100x5mm plate welded to other side for anchorage of bolt as per direction of the Engineer-in-charge.

Installing roof top 4 legged pole structure consisting of the following activities. Lifting/hoisting the materials with rope & pulley arrangement without causing damage to the pole materials as well as the building for installing roof top four legged pole structure, to roof , at fifth floor, of the proposed building , consisting of GI/MS pipes of 76 mm outer diameter and GI/MS ISA 50x50x6 sections, of total weight about 1.40 MT and installing the four legged pole structure with base connected to the base plate embedded in reinforced cement concrete work ( RCC work will be paid separately). Each leg consists of three MS/GI pipes of three metre long and 76 mm outer diameter connected vertically with bolts and all these poles should be barced with MS/GI ISA 50x50x6 sections by bolting to the flanges available on the poles with MS hot dipped galvanized nuts, bolts and spring&pack washers tightening properly, etc as per the approved drawing . Ladder/cable tray using MS/GI ISA 50x50x6 mm sections connected to the structure with MS hot dipped galvanized nuts, bolts and washers, working platfor with MS/GI plates etc also should be installed as per the approved drawing issued by the Engineer in Charge. The rate includes cost of nuts, bolts washers and labour, tool & plant charges for installing the four legged pole structure as per the approved drawings. (The cost of materials ie MS/GI pipes, MS/GI angle and plate sections etc will be paid separately ) (a) Upto 6.00 m height

Providing and applying paint of approved specification over four legged pole antenna mount structure, including ladder, cable tray, working platforms, gantries etc, with two coats of zinc chromate primer should be applied, over that two or more coats of enamel paint Orange/White(as per aviation standards for tower) of approved brand and manufacture should be applied.This item includes necessary hire charges of tools & plants, payment of insurance premium of working labours, safety implements, etc including all materials and labour charges etc complete. (a) Four legged pole structure upto 6.00 m height

Dismantling of 6M Roof Top Four legged pole structure at third floor, consisting of MS angles and round pipes braced with MS plate, screws and bolts, carefully, without causing any damage to the building, with required tools and plants for safely carrying out the work , bringing down the materials to ground level and stacking the same for further transportation to the store etc complete as directed by the Engineer in Charge

Credit for old damaged and corroded 6M high roof top pole structue dismantled MS sections