| 摘要 |
PURPOSE: A method for the compaction of asphalt and a compaction apparatus are provided for compacting hot mix asphalt under conditions which advantageously optimize binder flow within the asphalt during compaction. CONSTITUTION: A method of compacting a mat of hot mix asphalt comprising advancing an asphalt compactor over laid asphalt substantially at the rate of advancement of an asphalt paver and within about 50 M behind the asphalt paver, or at a rate of advancement of no more than about 0.7 m/s, the asphalt compactor having a compaction surface which engages the mat over a length of at least about 1 m wherein the compaction surface is formed by a lower run of at least one belt, and wherein the compaction surface applies a maximum average load stress to the mat of less than about 50 kPa. Compaction may be achieved using a compactor (60) comprising two longitudinally spaced rotatable support assemblies (62), wherein at least one of the support assemblies (62) is adjustable to permit steering of the compactor, and wherein at least one of the support assemblies (62) comprises a modular compaction unit comprising a compaction belt (74).
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