construction of dining hall for gcup school kandamkulangara construction of dining hall for gcup klm , stone aggregate ( single size ) : 40 mm nominal size , stone aggregate ( single size ) :20 mm nominal size , stone aggregate ( single size ) : 10 mm nominal size , coarse sand ( zone iii ) , fine sand ( zone iv ) , portland cement , hire charges of concrete mixer 0.25 to 0.40 cum with hopper , vibrator ( needle type 40 mm ) , twisted steel / deformed bars , laterite stone of size 35*20*20cm , royalty for good earth , deharadun white lime , g i pipe 50 mm dia , g i pipe 40 mm dia , red oxide zinc chromate primer , welding by electric plant , vitrified floor tile 60x60 cm , galvanised steel j or l hooks 8 mm dia , bitumen washer , gi plain washer thick , precoated aluminium trafford sheet 0.45 mm thick , plastic emulsion paint , synthetic enamel paint in black or chocolate shade , mild steel round bar above 12 mm dia , flats upto 10 mm in thickness