construction of Additional classrooms Middle school Dramman samagra shiksha

Earth work in bulk excavation by manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 m2 on plan) including disposal of excavated earth lead upto 50 meters and lift upto 1.5 m, as directed by Engineer-in-Charge. All kinds of soil :

Earth work in excavation by manual means in trenches for foundations, drains, pipes, cables etc. (not exceeding 1.5 m in width) and for shafts, wells, cesspits and the like not exceeding 10 sqm on plan, including dressing of sides and ramming of bottoms lift upto 1.5 m, including getting out excavated earth and disposal of surplus excavated earth as directed:All kinds of soil :1 meter from cutting edge

1:4:8 (1 cement : 4 coarse sand : 8 graded stone aggregate 40 mm nominal size)

1:1½:3 (1 cement :1½ coarse sand: 3 graded stone aggregate 20 mm nominal size)

1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 20 mm nominal size)with 20% boulders

Foundations, footings, bases of columns etc. for mass concrete.

Lintel, beams, plinth beams, girders, bressumers and cantilevers.

Suspended floors, roofs, landings, balconies and access platforms