Miscellaneous Urgent Maintenance Works At Bsnl Te Building Bissau, Jhunjhunu 1 Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge. 2 Nominal concrete 1:4:8 or leaner mix (i/c equivalent design mix) 3 Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge. 4 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.. 5 In cement mortar 6 Carriage of materials by Mechanical Transport including loading, unloading and stacking : 7 Lime, moorum, building rubbish - Lead 5.00 km 8 Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level : 9 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) 10 Centering and shuttering including strutting, propping etc. and removal of form for : 11 Suspended floors, roofs, landings, balconies and access platform 12 Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. 13 Thermo-Mechanically Treated bars of grade Fe-500D or more. 14 Providing and applying fibre reinforced elastomeric liquid water proofing membrane with resilient acrylic polymers having Sun Reflectivity Index (SRI) of 105 on top of concrete roof in three coats @10.76 litre/ 10 sqm. One coat of self-priming of elastomeric waterproofing liquid (dilution with water in the ratio of 3:1) and two coats of undiluted elastomeric waterproofing liquid (dry film thickness of complete application/system not less than 500 microns). The operation shall be carried out after scrapping and properly cleaning the surface to remove loose particles with wire brushes, complete in all respect as per the direction of Engineer-in-Charge. 15 20 mm cement plaster of mix : 16 1:4 (1 cement: 4 fine sand) 17 15 mm cement plaster on rough side of single or half brick wall of mix : 18 1:4 (1 cement: 4 coarse sand) 19 Finishing walls with textured exterior paint of required shade : 20 New work (Two or more coats applied @ 3.28 ltr/10 sqm) over and including priming coat of exterior primer applied @2.20kg/10 sqm. 21 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. 22 Two coats. 23 Applying priming coats with primer of approved brand and manufacture, having low VOC (Volatile Organic Compound ) content. 24 With water thinnable cement primer on wall surface having VOC content less than 50 grams/litre. 25 Renewing glass panes, with putty and nails wherever necessary including racking out the old putty: 26 Float glass panes of nominal thickness 4 mm (weight not less than 10kg/sqm). 27 Renewal of old putty of glass panes (length) . 28 Providing and fixing P.V.C. low level flushing cistern with manually controlled device (handle lever) conforming to IS : 7231, with all fittings and fixtures complete. 29 10 litre capacity - White 30 Providing and fixing PTMT Waste Coupling for wash basin and sink, of approved quality and colour. 31 Waste coupling 31 mm dia of 79 mm length and 62 mm breadth weighing not less than 45 gms. 32 Providing and fixing PTMT 15 mm Urinal spreader size 95x69x100 mm with 1/2 BSP thread and shapes, weighing not less than 60 gms. 33 Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply including all CPVC plain & brass threaded fittings. This includes jointing of pipes & fittings with one step CPVC solvent cement, trenching, refilling & testing of joints complete as per direction of Engineer in Charge : External work 34 20 mm nominal outer dia. Pipes. 35 25 mm nominal outer dia. Pipes. 36 Providing and fixing uplasticised PVC connection pipe with brass unions : 37 30 cm length 38 15 mm nominal bore 39 Providing and fixing PTMT bib cock of approved quality and colour. 40 15mm nominal bore, 86 mm long. Weighing not less than 88 gms. 41 Providing and fixing PTMT stop cock of approved quality and colour. 42 15 mm nominal bore, 86 mm long. Weighing not less than 88 gms. 43 Providing and fixing PTMT pillar cock of approved quality and colour . 44 15mm nominal bore, 107 mm long. Weighing not less than 110 gms. 45 Providing and fixing double scaffolding system (cup lock type) on the exterior side of building/structure, upto 25 metre height, above ground level, including additional rows of scaffolding in stepped manner as per requirement of site, made with 40mm dia M.S. tube, placed 1.5 metre centre to centre, horizontal & vertical tubes joint with cup & lock system with M.S. Tubes, M.S. tube challis, M.S. clamps and staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for execution of work of cleaning and/ or pointing and/ or applying chemical and removing it thereafter. 46 The scaffolding system shall be stiffened with bracings, runners, connecting with the building etc, wherever required, if feasible, for inspection of work at required locations with essential safety features for the workmen etc., complete as per directions and approval of Engineer-in-charge. 47 Note :- (1) The elevational area of the scaffolding shall be measured for payment purpose. 48 (2) The payment will be made once only for execution of all items for such works. 49 Chipping of unsound/weak concrete material from slabs, beams, columns etc. with manual Chisel and/ or by standard power driven percussion type or of approved make including tapering of all edges, making square shoulders of cavities including cleaning the exposed concrete surface and reinforcement with wire brushes etc. and disposal of debris for all lead and lifts all complete as per direction of Engineer-In-Charge 50 75 mm average thickness 51 50 mm average thickness 52 25 mm average thickness 53 Cleaning of reinforcement from rust from the reinforcing bars to give it a total rust free steel surface by using alkaline chemical rust remover of approved make with paint brush and removing loose particles after 24 hours of its application with wire brush and thoroughly washing with water and allowing it to dry, all complete as per direction of Engineer-In-Charge. 54 Bars above 12 mm diameter 55 Providing, mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and direction of Engineer-In-charge complete in all respect. 56 SBR Polymer (@10% of cement weight) modified cementitious bond coat @ 2.2 kg cement per sqm of surface area mixed with specified proportion of approved polymer 57 Providing, mixing and applying SBR polymer (of approved make) modified Cement mortar in proportion of 1:4 (1 cement: 4 graded coarse sand with polymer minimum 2% by wt. of cement used) as per specifications and directions of Engineer-in-charge. 58 Note: Measurement and payment: The pre-measurement of thickness shall be done just after the surface preparation is completed and Payment under this item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding / tapping with a blunt metal instrument and/or the 75mm size cube crushing strength at the end of 28 days to be not less than 30 N/Sqmm2). 59 12 mm average thickness. 60 25 mm average thickness in 2 layers. 61 50 mm average thickness in 3 layers. 62 Providing and fixing CPVC valve in CPVC water line. (Only payable where no. of valves exceeds per 6m length of pipe). 63 for 20mm outer dia. Pipe 64 for 25mm outer dia. Pipe 65 Credit for MS scrap recovered from dismantling 66 Providing and fixing 0.30mm thick anodized aluminium sheet to wooden door shutter with necessary screws/nails, all complete as per direction of Engineer-in-charge. 67 Dismantling aluminium partition including dismantling of panelling/glass with due care and stacking all material at safe place all complete as per direction of Engineer-in-charge. 68 Reassembling aluminium partition with available aluminium partition material and panelling/glass with necessary screws etc. all complete as per direction of Engineer-in-charge. 69 Providing Anodised aluminium (anodised transparent or dyed to required shade according to IS: 1868, Minimum anodic coating of grade AC 15) 70 Providing and fixing 0.30mm thick aluminium composit panel to aluminium partition with necessary rubber gasket all complete as per direction of Engineer-in-charge. 71 Engaging Carpenter 72 Engaging Helper 73 Dismantling PVC water tank with due care and refixing after repair of Overhead tank platform including reconnection of tank with inlet, outlet and overflow pipes all complete (excluding cost of fittings required if any but including PTFE tape) as per direction of Engineer-in-charge.
