payyanki kaitrhakkad roadil ninnum malayaru moolayilekk footpath cum drainege nirmmanam ward 13 payyanki kaitrhakkad roadil ninnum malayaru moolayilekk footpath cum drainege nirmmanam ward 13 , materials , stone aggregate ( single size ) : 40 mm nominal size , stone aggregate ( single size ) :20 mm nominal size , coarse sand - zone iii ( m-sand for concreting works ) , portland cement , hire charges of concrete mixer 0.25 to 0.40 cum with hopper , vibrator ( needle type 40 mm ) , sundries , wall form panel 1250x500 mm , corner angle 45x45x5 mm 1.50 m long , 100 mm channel shoulder 2.5 m long , double clip ( bridge clip ) , single clip , m.s. tube 40 mm dia , stone aggregate ( single size ) :10 mm nominal size , twisted steel / deformed bars