ward1 village haat construction concrete - 1 stone aggregate ( single size ) :20 mm nominal size 2 stone aggregate ( single size ) : 10 mm nominal size 3 coarse sand ( zone iii ) 4 portland cement 5 solid blocks of size 30x20x15cm 6 structural steel such as tees, angles, channels and r.s. joists 7 red oxide zinc chromate primer 8 twisted steel / deformed bars 9 mild steel tubes hot finished welded type 10 welding by electric plant 11 gi trafford profile sheet 0.35mm thick 12 bitumen washer 13 stainless steel screws 50 mm 14 fine sand ( zone iv ) 15 galvanised wire mesh of average width of aperture 1.4 and nominal dia. of wire 0.63 mm 16 wire nails 17 ceramic glazed tiles ist quality 300 x 300 mm in all shades and designs of white, ivory, grey, fume red brown etc. 18 deharadun white lime 19 stone aggregate ( single size ) : 40 mm nominal size 20 pvc pipe 32 mm outer dia 6kgf / cm2 21 g.i pipes 50 mm dia 22 pvc pipe 75 mm outer dia 4 kgf / cm2