supply of materials for construction of earthen stadium at dumriguri- 1 soling stone & masonry stone 2 stone boulder ( 225mm-150mm ) 3 loading unloading & stacking stone aggregate ( above 40mm nominal size ) 4 stone aggregate ( single size ) : 20 mm nominal size 5 stone aggregate ( single size ) : 10 mm nominal size 6 portland cement 7 stone aggregate below 40 mm nominal size 8 loading unloading & stacking sand / stone aggregate ( less than 40mm nominal size ) 9 coarse sand 10 1st class traditional bricks ( klin burnt ) 11 medium sand 12 coarse sand ( zone iii ) 13 coarse sand 14 cement 15 hire charges of concrete mixer 0.25 to 0.40 cum with hopper 16 vibrator ( needle type 40 mm ) 17 sundries 18 structural steel such as tees, angles, channels and r.s. joists 19 steel 20 red oxide zinc cromate primer 21 carriage 22 adjustable telescopic prop 3 m ( 2.02-3.75m ) 23 beam clamp 300-380 mm ( 450-1070mm ) 24 twisted steel / deformed bars 25 add cgst 6% 26 add sgst 6% 27 add cess 1%