22 / r-i / mgnrega / 2020-21 supply of materials for rain water harvesting structure for institution or government building under lochanpur gram panchayat , description of items , portland cement , 1st class traditional bricks ( kiln burnt ) , stone aggregate ( single size ) :20 mm nominal size , stone aggregate ( single size ) : 10 mm nominal size , loading unloading & stacking sand / stone aggregate ( less than 40mm nominal size ) , g i wire , brick aggregate ( single size ) :40 mm nominal size , upvc pipes ( working pressure 4 kg / cm2 ) single socketed pipe 75 mm dia , coarse sand , tor steel rods / hysd bars / tmt bars ( sail / tata / rinl ) ( fe415 / fe500 / fe500d conforms to is: 1786 ) , loading , unloading and stacking by manual means of steel , hire charges of shuttering plank ( 25mm-30mm thick ) without prop including all fittings , display board , chlorinated polyvinyl - chloride ( cpvc ) pipe 50 mm outer dia , fine sand , medium sand