Tender For Strengthening works of QC lab and U300-- 1 CONCRETE CHIPPING 2 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, scaffolding upto 4 mtr height, all complete as per direction of Engineer-In-Charge. 50mm average thickness 3 TAKING OUT OF INTERLOCKING PAVER STONES 4 Taking out existing CC interlocking paver blocks from footpath/ central verge, including removal of rubbish etc., disposal of unserviceable material to the dumping ground, for which payment shall be made separately and stacking of serviceable material within 50 metre lead as per direction of Engineer-in-Charge. 5 CONCRETE DEMOLISHING 6 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 (i/c equivalent design mix) 7 Earth work excavation 8 Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including disposal of excavated earth, lead up to 50 m and lift up to 1.5 m, disposed earth to be levelled and neatly dressed.All kinds of soil 9 PCC 10 Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:4:8 (1 cement : 4 coarse sand : 8 graded stone aggregate 40 nominal size) 11 Centering and shuttering- BELOW PLINTH LEVEL 12 Centering and shuttering including strutting, propping etc. and removal of form work for:Foundations, footings, bases for columns 13 STEEL REINFORCEMENT WORK 14 Steel reinforcement for R.C.C work including straightening, cutting, bending, placing in position and binding all complete upto plinth levelThermo - Mechanically Treated bars of grade Fe-500D or more 15 RCC WORKS 16 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:1:1:5:3 (1 cement 1.5 coarse sand :3 graded stone aggregate 20 mm nominal size 17 CLEANING OF REINFORCEMENT bars 18 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.Bars above 12 mmdiameter 19 APPLYING ANTI-CORROSIVE COATING FOR STEEL 20 Providing and applying anti corrosive Nitozinc primer/Cera cte SP CI/protectosil CIT,two or more coats, over the steel reinforcement as per the manufactures specification including scaffolding upto height 4 mtr and as directed by Engineer-in-charge. The product shall be applied on reinforcement surface after througly cleaning. Painted area of steel shall be considered for payment 21 APPLYING BONDING AGENT 22 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.Epoxy bonding adhesive having coverage 2.20 sqm/kg of approved make 23 THIXOTROPIC MORTAR 24 Providing and applying single component fibre reinforced thixotropic non shrink repair mortar such as BASF EMACO S48CT or FOSROC/BOSTIK product for columns, beams, slabs and other structural members with 4 ltrs of potable water per 25kg of product, mixing by heavyduty, slow speed drill with spiral mixing paddle or a Pan type mixers etc. after pouring the water in a mixing vessel, mixed material shall be applied both by trowel or spray application and finished to get a uniform thickness and finish and all works as per manufactures specifications and as directed by the Engineer in charge, including curing, cost of materials, labour, scaffolding upto a height of 4 mtr, conveyance etcThe work shall be carried by an agency having sufficient experience and should ensure a guarantee of 5years. Only skilled and experienced persons shall be employed for this purpose. 25 MICROCONCRETE UPTO 5cm Thickness 26 Providing and applying micro concrete over the chipped and cleaned exposed areahaving sufficient thickness (average 50mm) to receive the same with fluid microconcrete product, suchas Renderoc RG/MasterEmaco S 346/Cera microconcrete of M/s Fosroc/BASF/CeraChem or Similar respectively, with potable water, mixing by heavy duty slow speed electricallyoperated stirrer after pouring the water in a mixing vessel, mixed material shall be poured through the feed hopper into well positioned form work for the required thickness and all works as per manufactures specifications and as directed by the Engineer in charge, including curing, cost of materials, labour, scaffolding upto a height of 4 mtr, conveyance etc, but excluding cost of form work, bonding agent, reinforcement and SS welded mesh. The work shall be carried by an agency having sufficient experience and should ensure a guarantee of 5years. Only skilled and experienced persons shallbe employed for this purpose. 27 MICROCONCRETE ABOVE 5cm Thickness 28 Microconcerte measured in m3 for thickness more than 5cm, providing and applying microconcrete for thickness above 50mm with fluid micro concrete product, such as Renderoc RG/MasterEmaco S 346/Cera microconcrete of M/s Fosroc/BASF/Cera Chem or Similar respectively, with potable water, mixing by heavy duty slow speed electrically operated stirrer after pouring the water in a mixing vessel, mixed material shall be poured through the feed hopper into well positioned form work for the required thickness and all works as per manufactures specifications and as directed by the Engineer in charge, including curing, cost of materials, labour, conveyance etc, but excluding cost of form work, bonding agent, reinforcement and SS welded mesh. The work shall be carried by an agency having sufficient experience and should ensure a guarantee of 5years. Only skilled and experienced persons shall be employed for this purpose 29 SS welded mesh fixing 30 Supplying and Fixing 16 gauge SS welded mesh having size 20x20 mm or nearest size firmly to columns and beams with concrete nails and plate washers at adequate spacing to cover the concrete surface prior to micro concreting at all levels as per the instruction of engineer in charge,including all cost of materials, scaffolding upto height 5 mtr, conveyance, labour etc.complete. 31 CENTERING & SHUTTERING-Columns, 32 Centering and shuttering including strutting, propping etc. and removal of form work for:Columns, piers, abutments, pillars, posts and struts 33 SBR PLASTERING 34 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. 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).12 mm average thickness. 35 SCAFFOLDING 36 Providing and fixing double scaffolding system (cup lock type) on the exterior side, upto seven story hight made with 40 mm dia. M.S. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staricase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after. The scaffolding system shall be stiffened with bracings, runners, connection with the building etc wherever required for inspection of work at required location with essential safety features for the workmen etc. complete as per directions and approval of Engineer- in Charge. The elevational area of the scaffolding shall be measured for payment purpose. The payment will be made once irrespective of duration of scaffolding. Note:- This item to be used for maintenance work judicially, necessary deduction for scaffolding in the existing item to be done . 37 FILLING WITH AVAILABLE EARTH 38 Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundation etc. in layers not exceeding 20 cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift up to 1.5 m. 39 DISMANTLING OF BRICK WORK 40 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 41 UNSKILLED LABOURS 42 Miscellaneous labour 43 WALL SCRAPPING 44 Removing white or colour wash by scrapping and sand papering and preparing the surface smooth including necessary repairs to scratches etc. complete 45 APPLYING WALL PRIMER 46 Applying one coat of water thinnable cement primer of approved brand and manufacture on wall surface:Water thinnable cement primer(Asian Paints/Berger/Indigo/Nerolac) 47 APPLYING EMULSION 48 Wall painting with acrylic emulsion paint of approved brand and manufacture including applying additional coats wherever required, to achieve even shade and colour.Two coats (Asian paints- Apcolite premium / Apex ultima / Berger -Rengoli total care /Weather coat smooth/ equivalent of Jotun/Nerolac/Indigo) 49 R-Laying old interlocking paver stones 50 Laying old cement concrete interlocking paver blocks of any design/ shape laid in required line, level, curvature, colour and pattern over and including 50 mm thick compacted bed of coarse sand, filling the joints with fine sand etc. all complete as per the direction of Engineer-in-charge. (Old CC paver blocks shall be supplied by the department free of cost.) 51 Brick work 52 Brick work with common burnt clay machine moulded perforated bricks of classdesignation 12.5 conforming to IS: 2222 in superstructure above plinth level up tofloor five level in cement mortar 1:6 (1 cement : 6 coarse sand):With F.P.S. ( non modular ) bricks
