Patent ID: 6375386
Filing Date: 2002-04-23
Classification: E01C

Abstract:
A method comprising the steps of:providing a hopper for receiving a hot, pre-mixed asphalt material; loading the hot pre-mixed asphalt material into the hopper; providing a spreader arranged to distribute the hot pre-mixed asphalt material generally transversely relative to a direction of travel to form a mat; providing at least one pair of axially rotatable feed augers in the hopper, the feed augers being disposed generally parallel to the direction of travel; providing at least one mixing blade on each of the feed augers, the mixing blade mounted on a shaft of the feed augers and arranged to displace the asphalt material generally transversely relative to a longitudinal axis of each of the feed augers as the feed augers convey the hot mix asphalt material; rotating the feed augers thereby conveying the hot pre-mixed asphalt material from the hopper to the spreader and further thereby re-mixing the hot pre-mixed asphalt material as the hot pre-mixed asphalt material is being conveyed; and spreading the re-mixed asphalt material to form the mat.