Renovation of existing damaged pathways (phase 2) and approach road to aluminizing coating plant at IIA, Vainu Bappu Observatory (VBO), Kavalur, Tirupattur Dist., Tamil Nadu

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

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge.

Nominal concrete 1:4:8 or leaner mix (i/c equivalent design mix).

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 getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-in charge.

All kinds of soil

Excavating and removal of roots of tree below pathways and filled with wet mix macadam, base course and sub base course, watering and compacting with the roller and make good the area. Cost of all materials, labour, HOM of machineries complete as per specifications.

Providing, laying, spreading and compacting graded stone aggregate (size range 53 mm to 0.075 mm ) to wet mix macadam (WMM) specification including premixing the material with water at OMC in for all leads & lifts, laying in uniform layers with mechanical paverfinisher in sub- base / base course on well prepared surface and compacting with vibratory roller of 8 to 10 tonne capacity to achievethe desired density, complete as per specifications and directions of Engineer-in-Charge.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :

1:2:4 (1 Cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 20 mm nominal size). Note: Thread line has to be make at suitable interval which will be decided at the time of execution.

Providing and fixing pre-moulded joint filler in expansion joints of RCC roads / CC pavements after making the joints dust free with high pressure air jet cleaners, all complete as per direction of the Engineer-in-Charge. percm (Pre-moulded joint fillers shall be made of bitumen hot sealing compound depth per impregnated fibre board having impregnation more than 35%, conforming cm width to 1S:1838 for fibre board and IS: 1834 for hot sealing bitumen compound _ per metre grade A.) Note: Expansion joint pad of 12.5 mm thick with 50mm deep madeup of foamed polyethylene with interval of 3m or less as per the site condition and decision of the Engineer in-charge, etc, complete.

Providing and laying at or near ground level factory made kerb stone of M-25 grade cement concrete in position to the required line, level and curvature, jointed with cement mortar 1:3 (1 cement: 3 coarse sand), including making joints with or without grooves (thickness of joints except at sharp curve shall not to more than 5mm), including making drainage opening wherever required complete etc. as per direction of Engineer-in-charge (length of finished kerb edging shall be measured for payment). (Precast C.C. kerb stone shall be approved by Engineer-in-charge). Note: Rate is inclusive of earthwork and backfilling for fixing/positioning of the kerb stones in alignment.

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete above plinth level.

Thermo-Mechanically Treated bars of grade Fe-550D or more.

Centering and shuttering including strutting, propping etc. and removal of form for

Foundations, footings, bases of columns, etc. for mass concrete

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 :

1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

Plastering on internal & external surface of 12mm thick with cement mortar specified below, finished smooth, including scaffolding, curing, etc; complete for INTERNAL & EXTERNAL SURFACES of stone masonry/brick masonry walls sills, jambs, etc; complete all as per specifications UPTO FLOOR LEVEL, mix specified is for cement: fine sand. NOTE: CM 1:3 OR 1:4 is generally applicable for ceilings and RCC surfaces unless otherwise specified.

1:4 (1 cement: 4 fine sand) Wall surfaces

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m.

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

Making plinth protection 50mm thick of cement concrete 1:3:6 (1 cement : 3 coarse sand (zone - III) : 6 graded stone aggregate 20 mm nominal size) over 75mm thick bed of dry brick ballast 40 mm nominal size, well rammed and consolidated and grouted with fine sand, including necessary excavation, levelling & dressing & finishing the top smooth.

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade : Brand Asian paints (Apcolite)

Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture. Note: Painting on kerb stones shall be carried out as per the approved pattern and specifications. Measurement shall be taken in square meters (Sq.m) of the painted surface area.

LPURUSHOTHAM (BID ID -3295849)

GSK Constructions (BID ID -3292518)