Operation & Maintenance - 2025-26

Excavation for Structures- Mechanical Means( Data adopted from MORTH) Earth work in excavation in all kinds of soils of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material.Depth upto 3 m

Providing and laying insitu vibrated M-10 ( 28 days cube compressive strength not less than 10 N / sq mm ) grade cement concrete using 40 mm down size approved, clean, hard, graded aggregates including cost of all materials, machinery, labour, formwork,centering, scaffolding, cleaning, batching, mixing, placing in position, levelling, vibrating, finishing, curing etc., complete for plain concrete works with initial lead upto 1km and all lifts. (Cement content: 220 kg / cum with use of super plasticiser,CA : 0.90cum, Blending Ratio of CA--50:30:20, FA : 0.40 cum)

Providing and laying insitu vibrated M-15 ( 28 days cube compressive strength not less than15 N / sq mm ) grade cement concrete using 40 mm down size approved, clean, hard, gradedaggregates for sub-structure / super- structure works including cost of all materials,machinery, labour, formwork, scaffolding, cleaning, batching, mixing, placing in position,levelling, vibrating, finishing, curing etc., complete with initial lead upto 50 m and all lifts.(Cement content: 280 kg / cum with use of super plasticiser(0.4% by wt. of cement),CA : 0.90cum, Blending Ratio of CA--50:30:20, FA : 0.40 cum)

Providing and laying insitu M- 20 ( 28 days cube compressive strength not less than 20 N /sqmm ) grade cement concrete using 20 mm down size approved, clean, hard, gradedaggregates for wearing coat including cost of all materials, machinery, labour, formwork,cleaning, batching, mixing, placing in position in alternate panels, levelling, compacting,finishing, curing, packing joints with asphalt mortar etc., complete with initial lead upto 50 mand all lifts.If water is to be brought from other place add only lead charges @ 500 ltr / cum. to the data (Cement content: 330 kg / cum with use of super plasticiser(0.4% by wt. of cement),CA : 0.80cum, Blending Ratio of CA--65:35, FA : 0.45 cum)

Providing homogeneous embankment using soil from approved borrow area in layers of 25 to 30 cm before compaction including cost of all materials, machinery, labour, all operations such as excavation, sorting out, transportation, spreading soil in layer of specified thickness, breaking clods, sectioning,etc.,complete with initial lead upto 1 km and all lifts.

Excavation in all kinds of soil including boulders upto 0.30 m dia for field channels, seatingof embankment for field channels etc., including dressing of bed and sides to required profile,cost of all materials, machinery, labour, placing the excavated stuff for formation of serviceroad / embankment as directed etc., complete with lead upto 10 m and lift upto 3 m.