Construction of Polytechnic and Vocational Training Institute at Parbatjhora, District Kokrajhar, Assam. TN_52_02R

ADMINSTRATIVE BUILDING EARTH WORKS 2.6.1. 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

2.25. 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.

2.26. Extra for every additional lift of 1.5 m or part thereof in excavation / banking excavated or stacked materials.All kinds of soil BELOW GROUND 1.5 TO 3.0 M

1.1.2. Carriage of material by mechanical transport including loading, unloading to 5km.

2.35.3. Treatment of soil under existing floors using chemical emulsion @ one litre per hole, 300 mm apart including drilling 12 mm diameter holes and plugging with cement mortar 1 :2 (1 cement : 2 Coarse sand) to match the existing floor: 2.35.3.1. With Chlorpyriphos/Lindane E.C. 20% with 1% concentration

CONCRETE WORKS 4.1. Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 4.1.2. 1:1.5:3 (1 Cement : 1.5 coarse sand (zone-III) : 3 graded stone aggregate 20 mm nominal size)

4.1.8. 1:4:8 (1 Cement : 4 coarse sand (zone-III) : 8 graded stone aggregate 40 mm nominal size)

4.17. Making plinth protection 50mm thick of cement concrete 1:3:6 (1 cement :3 coarse sand : 6graded stone aggregate 20mm nominal size) over 75mm bed by dry brick ballast 40mm nominal size well rammed and consolidated and grouted with fine sand including finishing the top smooth

REINFORCED CEMENT CONCRETE WORK 5.9. Centering and shuttering including strutting, propping etc. and removal of form for : 5.9.1. Foundations, footings, bases of columns, etc. for mass concrete.

5.9.3. Suspended floors, roofs, landings, balconies and access platform.