What should be paid attention to in the compaction of asphalt pavement?

 After the asphalt mixture is paved, it enters the compaction process. The compaction of asphalt mixture is an important aspect of asphalt pavement construction, and it is a very important process. In the process of pavement compaction, it must be equipped with sufficient large-tonnage compaction equipment, and try to use the most advanced two-wheel vibration roller.


The compaction of asphalt pavement generally includes the following aspects:


The initial pressure of the road surface, the re-pressure of the road surface and the final pressure of the road surface.

1. Initial pressure of the road surface


The initial pressure is the primary link of road surface compaction. This link is generally carried out directly after the mixture is paved. Slow rolling 2-3 times, the temperature of the initial pressing link is generally kept between 110-140 degrees Celsius. Therefore, as long as the compaction equipment with relatively small tonnage can play a very good effect. Under normal circumstances, a 6-8-ton double-drum roller can be used.


In the process of rolling, the driving wheel should move forward at a constant speed, and when moving backward, it should move according to the rolling guide when moving forward. When the asphalt pavement is initially pressed, relevant technicians should check the smoothness and road crown of the road after the initial pressing, and correct any problems found immediately. If there is a phenomenon of shifting during the road surface rolling process, you can wait until the temperature becomes lower before rolling. If there are transverse cracks, you should check the cause and take corrective measures in time.


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