0000792987-08-000029 8-K 1 20080729 5.02 20080729 20080729 ASTEC INDUSTRIES INC 0000792987 3531 620873631 TN 0723 8-K 34 001-11595 08974554 1725 SHEPHERD ROAD CHATTANOOGA TN 37421 4238995898 1725 SHEPHERD ROAD CHATTANOOGA TN 37421 8-K 1 f8k-072908a.htm ELECTION OF NEW DIRECTOR