| 摘要 |
A machine (10) and a method for repairing a longitudinal joint between adjoining asphalt road wearing courses, the apparatus comprising a heater array (1, 2, 3, 4) for heating the surfaces of the asphalt wearing courses on both sides of the joint, a mixer (26) for depositing bitumen and heated aggregate onto the heated surfaces and having agitators for mechanically disturbing the heated asphalt over a distance considerably less than the width of the wearing course and extending transversely over the joint and for mixing the heated aggregate, bitumen and asphalt, and a screed (22) for spreading and tamping the mixed heated aggregate, bitumen and asphalt, wherein the heater array, mixer and screed are arranged linearly and mounted to a single machine (10) so as to pass over the wearing course in that order as the machine (10) moves in a forward direction (F). |
