Infrastructure improvement and essential civil works at CSIR-NCL in connection with hosting of India International Science Festival

Demolishing old constructed footpath made out of combination of Paverblock, stone tile, base lean concrete, side brick work and any filling materials, manually/ by mechanical means and disposal of material within 50 metres lead as per direction of Engineer- in-charge.

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 for all lift, as directed by Engineer-in-charge. All kinds of soil

Surface dressing of the ground including removing vegetation and in- equalities not exceeding 15 cm deep, refilling with avilailable soil and rolling of exacavated ground with mechanical hand compactor including making good the undulations etc.disposal of rubbish, lead up to 50 m and lift up to 1.5 m.

Supplying and stacking at site.Moorum

Laying, spreading and compacting muroom in uniform thickness, rolling with mechnical hand compactor, watering and compacting to the required density ,for payment compacted thickness considerd

Providing and laying at or near ground level factory made L -Shape 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 5 mm), including making drainage opening wherever required complete etc. as per direction of Engineer- in-charge (length of finished kerb edging shall be measured to calculate volume for payment). (Precast C.C. kerb stone shall be approved by 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 : 1:3:6 (1 Cement : 3 coarse sand (zone-Ill) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources).No extra payable appicable if use RMC.

Providing and laying factory made chamfered edge Cement Concrete paver blocks in footpath, parks, lawns, drive ways or light traffic parking etc, of required strength, thickness & size/ shape, made by table vibratory method using PU mould, laid in required colour & pattern over 50 mm thick compacted bed of sand, compacting and proper embedding/laying of inter locking paver blocks into the sand bedding layer through vibratory compaction by using plate vibrator, filling the joints with sand and cutting of paver blocks as per required size and pattern, finishing and sweeping extra sand. complete all as per direction of Engineer-in-Charge. 60 mm thick cement concrete paver block of M-35 grade with approved colour, design & pattern.

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.

Random rubble masonry with hard stone in foundation and plinth including levelling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20 mm nominal size) upto plinth level with : Cement mortar 1:6 (1 cement : 6 coarse sand)