Study On Compaction Technology Of Asphalt Concrete

With the development of road transport, modern automobiles demand higher use function. But in practice asphalt pavement of freeway occurs early damage in varying degrees. Through analysis the main reason is inadequate compaction of asphalt pavement which presents two aspect. One is compaction quality, the other is compaction technology and lacking of effective technology experiment in most workshop sections, exists improper compaction technology, which results in inadequate compaction.The article presents the view that compaction technology correspond with compaction characteristic of asphalt concrete, and it have been systematically studied. It is researched, when the same type bituminous concrete is compacted with different vibrator behaviors, their densities are different. With the first-rate property of vibratory compaction, the density of bituminous concrete is larger than Marshall's. And some mechanical functions of asphalt mixer are improved as the densities rise. We know that varied grade of asphalt mixer has different the first-rate property of vibratory compaction, which provides the basis for improving compaction technology of asphalt pavement.On the basis of the experiment result, adjusting the property of vibratory compaction in construction site, which tests that the result coming from above-surface vibrating compactor is feasible. On the basis of meeting Marshall's standard technology, the degree of compaction can be advanced through regulating compaction technology, which also provide scientific basis for selecting fit property of vibratory compaction and improving the quality of compaction.