Earthwork excavation by mechanical means in foundation trenches drains in all kinds of soil to required line level width and depth, Providing and filling clean sand under foundation bed spread uniformly in layers watered and well consolidated to required line and level complete, Providing and laying cement concrete nominal mix Type D2 1 4 8 using 40 mm graded aggregate in surface channel drain, Providing and laying reinforced cement concrete nominal mix 1 2 4 Type B1 using 20 mm graded aggregate in drain base foundation slab, Providing and laying reinforced cement concrete nominal mix 1 2 4 Type B1 using 20 mm graded aggregate in drain side walls 150 mm thick, Providing and laying reinforced cement concrete nominal mix 1 2 4 Type B1 using 20 mmseparately, Providing TMT high yield deformed steel reinforcement cut to required lengths bent hooked cranked where required, Providing and removing formwork to both faces of RCC drain side walls including necessary supports bracing strutting and removal complete

by Department of Defence