Construction of Community hall at Urja Vihar Colony, Omkareshwar Power Station

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means over areas (exceeding 30cm in depth. 1.5m in width as well as 10 sqm on plan) including dressing of sides and ramming of bottom disposal of excavated earth, lead up to 50m and lift up to 1.5m, disposed earth to be levelled and neatly dressed. (No extra lift is payable if work is done by mechanical means) All kinds of soil

Providing and laying in position cement concreteof specified grade excluding the cost of centering and shuttering - All work upto plinth level :M-10Nominal (Mix-1 Cement : 3 sand : 6 graded stone aggregate)

Providing and laying in position specified grade of reinforced cement concrete (nominal / design mix with 20mm nominal size graded stone aggregate) excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level M-20 Grade Concrete

Centering and shuttering in cluding strutting, propping etc. and removal of form for : Foundations, footings, bases of columns, etc. for concrete upto plinth level

Centering and shuttering in cluding strutting, propping etc. and removal of form for: Walls (any thickness) in cluding attached pilasters butter esses, plinth beams and string courses etc. Upto plinth level.

Brick work with well brunt open bhatta, bricks, crushing strength not less than 25kg /cm2 and water absorption not more than 20% in foundation and plinth i/c curing etc complete. Cement Mortar 1:6 (1 cement: 6 sand).

Filling available excavated earth (excluding hard rock/Ordinary 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.

Supplying and filling in plinth under floors including watering ramming consolidating in layers not exceeding 20cm in depth and dressing complete.Supplying and filing in plinth with soil (other then BC soil ) having MDD not less than 1.85 t/m3 under floors including watering, ramming and compacting (minimum compaction 95% of MDD) in layers not exceeding 15cm depth and dressing complete.

Preconstruction antitermite treatment Preconstruction antitermite treatment to the building under construction by providing. Stage 1: Treating the bottom and the sides (upto 30 cm height of the excavated trench @ 5 liters per sqm of the surface area. Stage 2: After masonry/RCC work, the backfill in the immediate contact with the foundation structure treatment @ 7.5 liters per sqm. Of the vertical surface of the substructure for each side. Stage 3: surface treatment by spreading emulsion over the plinth area before laying the base concrete under floors @ 5.0 litres/Sqm. Stage 4: Pumping the emulsion in plinth masonry on filling side at floor junction @ 7.5 litres/Sqm. Stage 5: Pumping the emulsion from outer side of the plinth below ground around the masonry @ 5.0 litres/Sqm as per I.S. 8944 Emulsion. (1Chlorpyrifos: 19 water) with five years service guarantee (Measurements to be taken for plinth area) Note – Treatment should start when foundation trenches and pits are ready to take bed concrete or leveling course in foundations. Lying of bed concrete should start when the chemical emulsion has been absorbed by the soil and the surface is reasonably dry. Treatment should not be carried out when it is raining or when soil is wet with rain or subsoil water. This also applies to fill up soil within the plinth area before laying the subgrade for flooring.

Plinth protection by C.C.Making plinth protection 50mm thick of cement concrete grade M10 over 75mm bed of dry metal ballast 40mm nominal size well rammed and consolidated and filled with sand including finishing the top smooth (with 20mm nominal size graded stone aggregate.)