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| 1 | Item No. 1:-Disposal of moorum/building rubbish/ malba/ similar unserviceable, dismantled or waste material by mechanical transport including loading, transporting, unloading to approved municipal dumping ground for lead upto 10 km for all lifts, complete as per directions of Engineer-in-charge.Note - item to be applicable in urban areas having directions for restricted hours for movement/ plying of load carrying motor vehicle of 3.5 cum or more. |
| 2 | Item No. 2:- 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. |
| 3 | Item No. 3:- 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 Average Thickness =50 mm |
| 4 | Item No. 4:-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 paintItem No. 4.1:- Bars upto 12 mm diameter |
| 5 | Item No. 4.2:- Bars above 12 mm diameter |
| 6 | Item No. 5:- Providing, mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and directions of Engineer-in-charge complete in all respect.Item No. 5.1:- Epoxy bonding adhesive having coverage 2.20 sqm/kg of approved make |
| 7 | Item No. 6:- Providing and injecting approved grout in proportion recommended by the manufacturer into cracks/honey-comb area of concrete /masonary by suitable gun/pump at required pressure including cutting of nipples after curing etc. Complete as per directions of Enginner-in-charge . Item No. 6.1:- Epoxy injection grout in concrete/RCC work of approved make |
| 8 | Item No. 7:- Providing and inserting 12mm dia galvanised steel/PVC injection nipple in honeycomb area and along crackline including drilling of holes of required diameter (20mm to 30mm) up to depth from 30mm to 80mm at required spacing and making the hole and crack dust free by blowing compressed air, sealing the distance between injection nipple with adhesive chemical of approved make and allow it to cure complete as per direction of Engineer-in-charge |
| 9 | Item No.8:-Providing, mixing and applying SBR polymer (of approved make @ minimum 2% by wt. of cement used) modified plain/reinforced cement concrete for structural members having minimum characteristic compressive strength [with ordinary portland cement, coarse sand and graded stone aggregate of 10mm maximum size in proportion as per design criteria] with specified average thickness. 50mm thick in Grade M 25 with cement content not less than 330 kg per cum |
| 10 | Item No. 9:-Drilling suitable holes in reinforced or plain cement concrete with power driven drill machine to a minimum depth of 100mm upto 200mm in RCC beams, lintels, columns and slabs to introduce steel bars for sunshades/balconies including fixing the steel bars in position using epoxy resin anchor grout of approved make but excluding the cost of reinforcement, all complete as per direction of Engineer-In- Charge (a) Above and including 12mm dia. |
| 11 | Item No. 10:-Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete above plinth level (a)Thermo-Mechanically Treated bars of grade Fe-500 D or more. |
| 12 | Item No. 11.:- Centering and Shuttering i/c strutting, propping etc. and removal of form for all heights: Columns, Pillars, Piers, Abutments, Posts and Struts.Item No. 11.1:- Columns, Pillars, Piers, Abutments, Posts and Struts |
| 13 | Item No. 12:- 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). 25 mm average thickness in 2 layers. |
| 14 | Total |
| 15 | Add Cost Index @ 3%on DSR Items |
| 16 | Total |
| 17 | Applying GST Correction fcator @ 0.973 |
| 18 | Item No. 13:-Providing and applying of anticorrosive treatment to exposed structural reinforcement by two coats of IPNET RB or equivalent applicationwith time interval of minimum 8 -10 hours between each coat after application of two coats of alkaline rust converting primer confirming to ASTM-B-117. The application shall be done by brush or spray after cleaning existing reinforcement with wire/ rotary wire brush to make the surfaces free from loose material, dirt etc. inclusive of all labour, materials, equipment etc. complete as per specifications and instructions of Engineer in Charge. (Surface area of member shall be measured for payment purpose). |
| 19 | Item No. 14:- Providing and painting with approved quality two or more coats of anti-carbonation paint, single component, flexible, elastomeric coating based on acrylic co-polymer coating and compatible primer coat as per manufacturer’s specifications and the direction of Engineer-in-Charge over un-plastered concrete surface of piers and superstructures after cleaning and removing dirt, dust, oil, grease, efflorescence to obtain an even surface and applying paint @0.44 kg per sqm and primer @ 0.22 kg per sqm, total dry film thickness (DFT) of the coating shall not be less than 150 microns including all scaffolding, testing of materials etc necessary tools, plants,machinery with all leads, lifts and depths and all related operations as required to complete the work as per drawings, specifications and directions of Engineer- in-Charge.Note:- The work shall be carried out only through approved applicator of manufacturer. The manufacturer/ applicator shall provide a guarantee of satisfactory performance of anti-carbonation coating for 5 years through contractor. |
| 20 | Item No. 15:- Clearing and grubbing including uprooting rank vegetation, grass, bushes, shrubs and saplings near locations viz. retaining wall, expansion joints, pier caps etc. and disposal of unserviceable materials including removal and disposal. |
| 21 | Item No. 16:- Lifting of superstructure spanby deploying appropriate LiftingSystem for all span length with centralised power jackto facilitate for removing of existing bearingwithout damaging the girders,cleaning and removing the damaged bearings including its stacking. After completion of restoration of bearings at supports, lowering of deck shall be carried out to its original position without causing any damage to the deck and girder as per approved method statement and standard practice. The item includes alllabour, materials equipments etc. complete as per specification and instructions of Engineer in Charge including MORT&H specification (5th Revision) clause 2810. |
| 22 | Item No. 17:- Providing , fitting and fixing in position true in line and level elastomeric bearings (conforming to IRC: 83 (Part-II) section IX and clause 2005 of MORTH specifications) on pedestals from pier cap / abutment cap for vertical loads, complete in all respect with all components including grouting with non-shrink cementatious grout as per specification.Item includes preparation of design and drawing and its approval from the Engineer-in-charge, manufacturing, testing, transportation to site, storage with all handling, lead, lift etc. and placing the permanent bearings in position. Cost of providing temporary bearings / supports as required and other incidental expenses (if any) shall also be included. Bearings shall be provided with a warranty of trouble free maintenance of 15 years. |
| 23 | Item No.18:- Supplying and providing non metallic composite carbon fibre low modulus prefabricated CFRP strip of 100mm wide, 1.4mm thick including surface preparation by Grinding/Moulding concrete, cleaning it with wire brush, removing oil, laitence etc.complete,Profiling by applying compatible primer on prepared surface, filling the holes and uneven surfaces with thixotrophic putty etc. Complete, fixing the strip by tamping to avoid any air voids etc. The same procedure shall be adopted for multiple layers with interval of 8hrs between consecutive layers, rectifying air voids if any, applying primer for pasting the river sand on top of strip as to make surface rough to add any further finishes. Each strip shall be measured separately. Complete as per the approved design & drawing and the direction of Engineer-in-charge. As per design L/2 Length of each girder 2 nos of laminate per girder. Size of each laminate plate will be 100mm width and 1.4mm thickness. |
| 24 | Item No.19:- Supplying and applying non metallic composite Carbon fiber wrapping system comprisingof unidirectional fiber sheet 450 GSM (having dry fibre properties, modulus of elasticity not less than 230 GPa, tensile strength not less then 3700 MPa and density not less than 1.80 gm/cm3) and compatible saturant,including surface preparation by Grinding /moulding concrete, cleaning it with wire brush, removing oil, laitance etc.if present, rounding sharp edges to min 25mm. radius etc. complete,Profiling by applying compatible primer on prepared surface, filling the holes and uneven surfaces with thixotrophic putty etc. complete, wrapping the fiber sheet bytampingto avoid any air voids etc. i/c fixing with required number of fiber anchors of minimum 10 mm diameter along the length of girder (both side) as per the drawing, driving and fixing the same upto minimum 75mm into parent concrete. Complete with respect to driving holes, cleaning with pressure air, making them free of dust and dirt, fibre sheet reinforcement shall be saturated by not less then 1.25 kg/sqm of saturating resin. The same procedure shall be adopted for multiple layers withinterval of 8 hrs between consequtive layers, rectifingair voids if any, pastingthe river sand on it to make surfacerough to add any furtherfinishes as per the specifications, design and drawings and the direction of the Engineer-in-charge.Overlaps and wastage will not be paid.Note : Carbon Fibre Shear Anchor shall be paid separately. |
| 25 | Item No. 20:- Providing shear anchor of 10mm dia and 100mm long of high strength carbon fibre mesh with filling of hole with EPOXY, removing/ drawing out of the entrapped air etc. from the drilled hole all complete as per manufacture\"s specifications and directions of the Engineer-in-Charge. It shall include labour for mixing EPOXY resin, saturating the anchor with EPOXY, drilling the RCC/PSC members and inserting the saturated anchor inside the drilled hole. |
| 26 | Item No. 21:- Providing and placing high strength, non shrink, pre-packed, free flow micro concrete having compressive strength of 60 MPa at 28 days (compresssive strength of one day should not be less than 25 MPa) . The micro concrete mix shall be prepared by mixing high strength, non shrink, pre-packed, free flow micro concrete powder with well graded cleaned crushed aggregates of 10mm & down size (Aggregates should be less than 10mm but retained on 3.36mm) in proportion of 2:1 (Two part pre-packed micro concrete powder : one part stone aggregates) by weight for repairing excessively damaged area of structural elements/Jacketing work/expansion joint repair etc. excluding reinforcement but including scaffolding, curing as per manufacturer\"s specificatons inclusive of all labours, materials, equipments etc. all complete as per directions of Engineer-in-Charge. (Note:-High strength, Non shrink, prepacked, free flow micro concrete powder content considered in this item is 1450 kg/cum). |
