construction of cc road from pirpur bajranbali to pirpur pukur under sovanagar gp , stone aggregate ( single size ) : 10 mm nominal size , stone aggregate ( single size ) : 20 mm nominal size , supply of portland cement , stone aggregate below 40 mm nominal size , loading unloading & stacking sand / stone aggregate ( less than 40mm nominal size ) , coarse sand , silver sand , hire charges of diesel road roller- 8 to 10 tonne , vibrator ( needle type 40 mm ) , brick aggregate ( single size ) :40 mm nominal size , hire charges of shuttering plank ( 25mm-30mm thick ) without prop including all fittings , thermocol 12 . 5 mm thick . , polythene sheet ( 150 gm per sqm ) , paddy straw , hire charges of concrete mixer 0 . 25 to 0 . 40 cum with hopper , display board , gst