Repair and Rehabilitation by replacement of damaged concrete deck slab of dwarka barrage bridge

Amount

Dismantling of Flexible Pavements Dismantling of flexible pavements and disposal of dismantled materials up to a lead of 1000 metres, stacking serviceable and unserviceable materials separately (Reference to MoRT&H's specification clause 202) and as per direction of Engineer-in-Charge. By Mechanical Means Bituminous course

Dismantling of Structures Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 metres (Reference to MORT&H's specification clause 202) and as per direction of Engineer-in-Charge. Steel Work in all types of sections upto a height of 5 m above plinth level excluding cutting of rivet. Including dismembering

Dismantling of Structures Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 metres (Reference to MORT&H's specification clause 202) and as per direction of Engineer-in-Charge. Cement Concrete Grade M-15 & M-20

M.S. structural works in columns, beams etc. with simple rolled structural members (e.g. joists, angle, channel sections conforming to IS: 226, IS: 808 & SP (6)- 1964 connected to one another with bracket, gussets, cleats as per design, direction of Engineer-incharge complete including cutting to requisite shape and length, fabrication with necessary bolting, metal arc welding conforming to IS: 816- 1969 & IS: 1995 using electrodes of approved make and brand conforming to IS:814- 2004, haulage, hoisting and erection all complete. The rate includes the cost of rolled steel section, consumables such as electrodes, gas and hire charge of all tools and plants and labour required for the work including all incidental chages such as electricity charges, labour insurance charges etc. and as per direction of Engineer-in-Charge. III) For built up sections / srtuctural members of specified sections weighing not less than 22.5 Kg./m Payment to be made on the basis of calculated weight of structural members only in finished work as per IS specified weight. Payment for gusset, bracket, cleat, rivets, bolts and nuts may be make by adding the actual weight of such items with the weight of finished structural members or 7% of weight for finished structural members weighing not less than 22.5 Kg. / m. or 15 % of weight for finished structal members weighing less than 22.5 Kg. / m. may be increased allow for bracket, cleat, rivet, bolts and nuts etc. and no seperate payment being made for these items, as per direction of Engineer In Charge. The rates are considered for a height of erection 8m. / 2nd floor level from the ground. Add 1.5% extra over the rate for each additional floor or 4m. beyond initiial 8m. or part thereof

Providing 22 mm dia headed Shear Connector over & along the flange of the ISMB and as per direction of Engineer-in-Charge. III) For built up sections / srtuctural member

Welding by gas / electric plant including transportation of welding plant at site including cutting, forging & drilling to required shape

Furnishing and Placing Reinforced/ Prestressed cement concrete in super- structure all including vibrating and compacting, finishing, curing, sampling, testing etc. by mechanically mixed as per clause 1719 of MoRTH but excluding the cost of materials as per drawing and Technical Specification (Reference to MORT&H's specifications 1500, 1600,1700 & 1800). RCC/PSC Grade M35 Using Concrete Mixer Height 5m to 10m For formwork and staging component add 23 per cent of the material cost

Providing and laying of a strip seal expansion joint catering to maximum horizontal movement upto 80 mm manufactured by MORT&H ,GOI Approved/Empanelled manufacturer and complete as per approved drawings and standard specifications to be installed by the manufacturer/supplier or their authorised representative ensuring compliance to the manufacturer's instructions for installation (Reference to MORT&H's specification 2606).

Drainage Spouts complete as per drawing and Technical specification (Reference to MORT&H's specification 2705)

Reinforced Cement Concrete Crash Barrier : Provision of an Reinforced cement concrete crash barrier at the edges of the road, approaches to bridge structures and medians, constructed with M-40 grade concrete with HYSD reinforcement conforming to IRC:21 and dowel bars 25 mm dia, 450 mm long at expansion joints filled with pre-moulded asphalt filler board, keyed to the structure on which it is built and installed as per design given in the enclosure to MOST circular No. RW/NH - 33022/1/94-DO III dated 24 June 1994 as per dimensions in the approved drawing and at locations directed by the Engineer, all as specified (Reference to MORT&H's specification 811).

Supplying, binding, fixing etc. including initial straightening, cutting to requisite length, hooking and bending to correct shape, placing in proper postion of uncoated HYSD reinforcement bar in super-structure complete as per drawing and technical specifications (Reference to MORT&H's specification 1600)

Providing, fitting and fixing mild steel railing with one shop coat with red oxide primer and three coats of synthetic enamel paint and consumables to safeguard against weathering and corrosion complete as per drawing and Technical Specification (Reference to MORT&H's specifications 2703.2 & 1900).

Supplying, fitting and fixing G.I. pipes of TATA make with all necessary accessories, specials viz. socket, bend, tee, union, cross, elbo, nipple,longscrew, reducing socket, reducing tee, short piece etc. fitted with holder bats clamps, including cutting pipes, making threads, fitting, fixing etc. complete in all respect including cost of all necessary fittings as required,jointing materials and two coats of painting with approved paint in any position above ground. (Payment will be made on the centre line measurements of total pipe line including all specials. No separate payment will be made for accesories, specials. Payment for painting will be made seperately)

Cleanning of steelwork of bridge girders with scrappers and / or are brushes to remove all rust and loose or perished paint to proper perfectly clean and dry bare metal surface free from all dust/ foreign materials and ready for initial coat of paint. Rate includes cost of labour, consumables, brushes, tools and plants, labours, scaffolding,

Providing and inserting nipples with approved fixing compound after drilling holes for grouting as per Technical Specifications including subsequent cutting/removal and sealing of the hole as necessary of nipples after completion of grouting with Cement/Epoxy (Reference to MORT&H's specification 2800).

Sealing of crack / porous concrete with Epoxy Grout by injection through nipples complete as per clause 2803.1 (Reference to MORT&H's specification 2803).

Painting on Steel Surfaces :- Providing and applying two coats of ready mix paint of approved brand on steel surface after through cleaning of surface to give an even shade (Reference to MORT&H's specification 803).

Painting cleaned bridge girder including all scaffolding shuttering strutting along with provision of jhoola / hanging scaffolding where required. With two coats epoxy paint a) Painting Work of Bridge Girder upto 30.5 m

Patching of damaged concrete surface with polymer concrete and curing compounds, initiator and promoter, available in present formulations, to be applied as per instructions of manufacturer and as approved by the Engineer (Reference to MORT&H's specification 2800).

Painting on concrete surface Providing and applying 2 coats of water based cement paint to unplastered concrete surface after cleaning the surface of dirt, dust, oil, grease, efflorescence and applying paint @ of 1 litre for 2 sqm (Reference to MORT&H's specification 800).

Retro-Reflectorised Traffic Signs : Providing and fixing full Retro-reflectorised cautionary, mandatory and informatory sign as per IRC:67 made of high intensity grade sheeting vide clause 801.3, fixed over aluminium sheeting, 1.5 mm thick supported on a mild steel angle iron post 75 mm x 75 mm 6 mm firmly fixed to the ground by means of properly designed foundation with M-15 grade cement concrete 45 cm x 45 cm x 60 cm, 60 cm. below ground level as per approved drawing (Reference to MORT&H's specification 801 in 5th Revision).

(i) 90 cm equilateral triangle

(ii) 60 cm circular

(vi)80 cm x 60 cm rectangular

Road Marking with Hot Applied Thermoplastic Compound with Reflectorising Glass Beads on Bituminous Surface Providing and laying of hot applied thermoplastic compound 2.5 mm thick including reflectorising glass beads @ 250 gms per sqm area, thickness of 2.5 mm is exclusive of surface applied glass beads as per IRC:35 .The finished surface to be level, uniform and free from streaks and holes (Reference to MORT&H's specification 803).

Supplying & fixing of Raised Pavement Marker ( CATS EYE) confirm to ASTN D 4280, body of the marker will be molded from polycarbonate. The Marker double sided lens YELLOW / WHITE /RED colour. Dimension :20m height,130mm width and 105 mmlength , 3 M make.

Metal Beam Crash Barrier (Reference to MORT&H's specification 811). Type - A, "W" : Metal Beam Crash Barrier Providing and erecting a "W" metal beam crash barrier comprising of 3 mm thick corrugated sheet metal beam rail, 70 cm above road/ground level, fixed on ISMC series channel vertical post, 150 x 75 x 5 mm spaced 2 m centre to centre, 1.8 m high, 1.1 m below ground/road level, all steel parts and fitments to be galvanised by hot dip process, all fittings to conform to IS:1367 and IS:1364, metal beam rail to be fixed on the vertical post with a spacer of channel section 150 x 75 x 5 mm, 330 mm long complete as per clause 811

Supplying & fixing of Hazard Markers of size : 30cm X 90 cm as per IRC :79-1981 ( The above is inclusive of vertical post)

Dismantling of Flexible Pavements Dismantling of flexible pavements and disposal of dismantled materials upto a lead of 1000 metres, stacking serviceable and unserviceable materials separately (Reference to MoRT&H's specification clause 202) (II) By Mechanical Means A. Bituminous course

Dismantling of Flexible Pavements Dismantling of flexible pavements and disposal of dismantled materials upto a lead of 1000 metres, stacking serviceable and unserviceable materials separately (Reference to MoRT&H's specification clause 202) (I) By Manual Means B. Granular courses

Excavation in Soil using Hydraulic Excavator CK90 and Tippers with Disposal upto 1000 metres. Excavation for roadwork in soil with hydraulic excavator of 0.9 cum bucket capacity including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross sections, and transporting to the embankment location within all lifts and lead upto 1000m (Reference to MoRT&H's specification clause 301).

Construction of Embankment with Material Deposited from Roadway Cutting Construction of embankment with approved materials deposited at site from roadway cutting and excavation from drain and foundation of other structures graded and compacted to meet requirement of table 300-2 & 300-1.The size course material in the mix of earth ordinarily shall not be exceed 75mm.(Reference to MoRT&H's specification clause 305). Material Cost Nil The earth cutting will be done by dozer and pushed for filling in the embankment, the input of dozer in the cost of embankment i.e. ₹ 39.63/m3 shall be deducted from the Rate

Supplying, spreading and consolidating Stone Dust to a depth of 100 mm and above at desired density and C.B.R. as per Specification with power roller to proper gradient and camber including watering as necessary, and lighting, guarding, barricading and making adequate earthen bundh where necessary to protect the edges and curing with water for 2 to 3 days, mending cracks and depressions by rolling where necessary including all incidental charges of roller, cost of fuel & lubricants complete as per specification. The compaction factor is 0.70.

Granular Sub-Base with Graded Material (Table:- 400-1) By Mix in Place Method Construction of granular sub-base by providing graded materials such as natural sand/crushed gravel/crushed stone/combination depending upon the required grading , spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator and compacting with vibratory roller to achieve at least 98% of the maximum dry density for the material determined as per IS:2720 (Part 8), complete as per clause 401 desired density, complete as per clause 401 (v) Rate per cum for grading-V Material

Granular Sub-Base with Graded Material (Table:- 400-1) By Mix in Place Method Construction of granular sub-base by providing graded materials such as natural sand/crushed gravel/crushed stone/combination depending upon the required grading , spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator and compacting with vibratory roller to achieve at least 98% of the maximum dry density for the material determined as per IS:2720 (Part 8), complete as per clause 401 desired density, complete as per clause 401 (v) Rate per cum for grading-III Material

Wet Mix Macadam Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specification including premixing the Material with water at OMC in mechanical mix plant carriage of mixed Material by tipper to site, laying in uniform layers with paver in sub- base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density (Reference to MoRT&H's specification 406). Note 1. As three wheeled smooth steel rollers are commonly in use, the same has been provided as an alternative which can be used if the thickness of individual layer does not exceed 100 mm .

Prime Coat Providing and applying primer coat with bitumen emulsion on prepared surface of granular surface including clearing of road surface and spraying primer using mechanical means ( Reference to MORT&H's Specification clause 502) i) On WMM/WBM surface @ 0.70-1.0kg /sqm.

Tack Coat Providing and applying tack coat with bitumen emulsion (RS1) using emulsion pressure distributor on the prepared bituminous / granular / cement concrete pavement surface cleaned with mechanical broom and high pressure air jet( Reference to MORT&H's Specification clause 503) ii) On granular surface treated with primer @ 0.25 - 0.30 kg./Sqm.

Dense Graded Bituminous Macadam With Continuous Type HMP(60-90 TPH) Providing and laying dense graded bituminous macadam using crushed aggregates of specified grading, premixed with bituminous binder @ 4.0% (min.) for Grading 1 & 4.5% (min.) for Grading 2 by weight of total mix and filler(Cement /lime / Rock dust ), transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MORT&H specification clause No. 505.4 complete in all respects (Reference to MORT&H's specification clause 505). for Grading 1 ( 37.5 mm nominal size )

Bituminous Concrete With Continuous Type HMP (60-90 TPH) Providing and laying bituminous concrete using crushed aggregates of specified grading, premixed with bituminous binder @ 5.2% (min.) for Gr.-1(19mm agg size) & @ 5.4% (min.) for Gr.- 2 (13.2mm agg size), as per table 500-17, of mix and filler(Cement /lime / Rock dust ), transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MORTH specification clause No.507complete in all respects (Reference to MORT&H's specification clause 507). for Grading 2 (13.2 mm nominal size)

Providing and laying 25 mm thick mastic asphalt wearing course with approved grade bitumen meeting the requirements given in table 500- 39, prepared by using mastic cooker and laid to required level and slope after cleaning the surface, including providing antiskid surface with bitumen precoated fine-grained hard stone chipping of 13.2 mm nominal size at the rate of 0.005cum per 10 sqm and at an approximate spacing of 10 cm center to center in both directions, pressed into surface when the temperature of surfaces is not less than 100°C, protruding 1 mm to 4 mm over mastic surface, all complete as per clause 516 (Reference to MORT&H's specification clause 516 along with IRC:107).

C.M.M.M.ENTERPRISE

UNIVERSAL CONSTRUCTION