Repairs and Re-surfacing of existing bituminous roads at IISc Bangalore

Amount

Clearing and grubbing road land including uprooting rank vegetation, grass, bushes, shrubs, saplings and trees girth up to 300 mm, removal of stumps of trees cut earlier and disposal of unserviceable materials and stacking of serviceable material to be used or auctioned, including removal and disposal of top organic soil not exceeding 150 mm in thickness. By Mechanical Means using Dozer-In area of thorny jungle.

Dismantling of cement concrete pavement by mechanical means using pneumatic tools, breaking to pieces not exceeding 0.02 m3 in volume and stock piling at designated locations and disposal of dismantled materials and stacking serviceable and unserviceable materials separately

Dismantling stone slab flooring laid in cement mortar including stacking of serviceable material and disposal of unserviceable material to the appropriate disposal area as per direction of Engineer-in-charge.

Construction of Granular Sub-Base (Plant Mix Method) of required grading as per design mixing in a mechanical mix plant at OMC, carriage of mixed Material to work site, spreading in uniform layers with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per clause 401, For Grading - II Material.

Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam (Plant Mix Method) 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 withpaver/ grader in sub-base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density.

Prime Coat over WMM/WBM. Providing and applying primer coat with SS1 grade Bitumen Emulsion on prepared surface of granular base including brooming, cleaning of road surface with air blower/compressor and spraying primer at the rate of 0.70 kg/m2 using mechanical means.

Providing and applying tack coat with RS1 Bituminous Emulsion using emulsion pressure distributor at the rate of 0.25 kg/m2 on prepared surface including brooming, cleaning of road surface with air blower/compressor on Granular surface treated with primer

Tack coat on Bituminous surface. Providing and applying tack coat with RS1 Bituminous Emulsion using emulsion pressure distributor at the rate of 0.20 kg/m2 on the prepared bituminous surface cleaned with brooming, and with air blower/compressor. DBM and BC base

Providing and laying Dense Graded Bituminous Macadam with 40/60 TPH capacity hot mix plant using crushed aggregates of specified grading, premixed with bituminous binder VG-30, @ 4.0 per cent by weight of total mix and filler, transporting the hot mix to work site, laying with mechanical paver finisher 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. 505 complete in all respects..(Thickness - 50 mm to 75 mm)

Providing and laying Bituminous Concrete with 40/60 TPH capacity hot mix plant using crushed aggregates of specified grading, premixed with bituminous binder VG-30 @ 5.2 per cent of mix and filler, transporting the hot mix to work site, laying with mechanical paver finisher 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. 507 complete in all respects. (Thickness - 30 mm to 40 mm)

Providing Speed Breakers/Raised pedestrian crossings in Trapezoidal section with 2.5 m Top width and transition length of 0.8 m length and height of 0.1 m as per IRC 99:2018 using Bituminous Macadam (BM) Gr II and Semi Dense Bituminous Macadam (SDBC) Gr II for entire formation width & WBM Gr II for Shoulder hump portion only (150 mm thick), completing with road marking paint with applied thermoplastic compound with reflecting glass beeds on bituminous surface and providing 2 Nos. retro reflective traffic signs as per IRC 67 -2022, Single lane with formation width of 5.75 m.

Road Marking with Hot Applied Thermoplastic Compound with Reflectorising Glass Beads on Bituminous Surface. Cleaning of Surface, Providing and laying of hot applied thermoplastic compound 2.5 mm thick including reflectorising glass beads @ 250 g/m2 area, thickness of 2.5 mm is exclusive of surface applied glass beads as per IRC:35:2015.The finished surface to be level, uniform and free from streaks and holes. Note: The road marking machine shall be approved by PE-cum-EO

Supplying and Fixing of Molded Shank Raised Pavement Markers / Cat's Eye made of polycarbonate and ABS moulded body and reflective panels with micro prismatic lens capable of providing total internal reflection of the light entering the lens face and shall support a load of 16000 kg tested in accordance to ASTM D 4280 Type H and complying to Specifications of Category A of MORTH Circular No RW/NH/33023/10-97 DO III Dt 11.06. 1997. The height, width and length shall not exceed 50 mm, 100 mm and 102 +/- 2 mm and with minimum reflective area of 13 cm2 on each side and the slope to the base shall be 35 +/- 5 degree. The strength of detachment of the integrated cylindrical shanks, (of diameter not less than 19 +/- 2 mm and height not less than 30+/- 2 mm) from the body is to be a minimum value of 500 Kg. Fixing will be by drilling holes on the road for the shanks to go inside, without nails and using epoxy resin based adhesive as per manufacturer's recommendation and complete as directed by the engineer.The contractor shall submit a two year warranty for satisfactory field performance including stipulated retro-reflectance of the reflecting panel, to the Engineer Make: 3M, ABS and Star Signs or equivalent make as approved by PE-cum-EO

Labour charges for works of loading and unloading works of debris -semi skilled

Removal of Unserviceable Soil materials/debris,concrete with Disposal upto a Suitable distance as directed by the Engineer incharge of work outside the IISc campus(Up to BBMP Iimits)(All dismantled materials and unused materials) For Tractor-Trolley

phoeninxinfra (BID ID -3122636)

SHRI ANJANADRI VENTURES (BID ID -3123067)

NAGESH G K (BID ID -3121749)

Muniraja V L (BID ID -3123080)

km murali (BID ID -3121496)