Provision of Hume pipe drain from mine water discharge at DOC water filling point under DSA of Chandrapur Area.

Earth work in excavation by mechanical means in drain /nallah of required size & shape in ordinary soil, soft rock, muddy soil etc. & disposal of excavated earth by levelling & dressing to a lead of 0 to 25 metres from the edge of nallah as per the instruction of the Engineer-in-charge including all lead & lift, hire charges & running cost of all machines, driver, khalasi, chowkidar etc. all complete.

Construction of granular sub-base by providing well graded material like natural sand crushed gravel or crushed stone having CBR >30, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator or plant mix method at OMC, and compacting with vibratory rollers of 80 to 100 kN static weight to achieve the desired density, complete as per Clause 401 of Specification. Plant Mix Method for Grading-I Material

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-III) derived from natural sources: 6 graded stone aggregate 20 mm nominal size derived from natural sources)

Laying Reinforced cement concrete pipe NP3/prestressed concrete pipe for drain over the bedding of granular material in single row including fixing collar with cement mortar 1:2 but excluding excavation, protection works, backfilling, concrete and masonry, GSB. works in head walls and parapets. 1200 mm dia.

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 for all lift

Brick work with non-modular fly ash bricks conforming to IS:12894, class designation 10 average compressive strength in foundation in : Cement mortar 1:6 (1 cement: 6 Coarse sand.

12 mm cement plaster of mix : 1:6 (1 cement: 6 fine sand)

Cement concrete flooring 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate) finished with a floating coat of neat cement, including cement slurry, but excluding the cost of nosing of steps etc. complete. 40 mm thick with 20 mm nominal size stone aggregate

Providing, hoisting and fixing above plinth level up to floor five level precast reinforced cement concrete work in string courses, bands, copings, bed plates, anchor blocks, plain window sills and the like, including the cost of required centering, shuttering but , excluding cost of reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).