supply of materials for improvement eyyakkad kulam , materials , hire charges of 10 hp engine and pump set , diesel oil , sundries , 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 ) , 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 , laterite stone of size 40x20x15 cm