Emulsified asphalt cold recycling pavement structure and rapid curing method of the pavement

Abstract

The invention discloses an emulsified asphalt cold-recycled pavement structure and a rapid curing method for the pavement, including a compacted structure and a newly-paved structure, a joint is arranged between the compacted structure and the newly-paved structure, and the compacted structure and the newly-paved structure are provided with a joint. From top to bottom, the structure includes the asphalt top layer, the asphalt middle layer, the asphalt bottom layer, the seal layer and the road base; the asphalt top layer is SMA-13 ​​type asphalt with a thickness of 4cm; the asphalt middle layer is AC-20 type Asphalt, its thickness is 6cm; the underlying layer of asphalt is AC‑25 type asphalt, its thickness is 8cm; the seal layer is SBS modified asphalt; the road base includes emulsified asphalt cold recycled base, cement stabilized gravel base and cement stabilized gravel base The base layer; the emulsified asphalt cold regeneration base layer is the emulsified asphalt cold regeneration mixture, and its thickness is 10cm; the present invention can shorten the curing time of 5 to 7 days in the prior art to 3 days, significantly reduce the construction time, and further reduce the construction time. cost.

Description

technical field [0001] The invention relates to the technical field of road engineering pavement construction, in particular to an emulsified asphalt cold recycling pavement structure and a rapid curing method for the pavement. Background technique [0002] With the rapid development of my country's economy and society, the traffic flow is increasing day by day, and the expressways built in the early stage have gradually entered the period of major repair, intermediate repair, reconstruction or expansion. Environmental pollution, on the other hand, is a waste of resources. If these waste asphalt pavement materials can be recovered and recycled, it will save at least hundreds of millions of yuan in material costs every year, which is conducive to the promotion of green construction. As a result, the application of emulsified asphalt cold recycling construction technology was born. [0003] As the emulsified asphalt cold recycled pavement generally needs to be cured and forme...

AI Technical Summary

Problems solved by technology

During the health preservation period, traffic safety control is required to prevent large vehicles from being crushed and damaged. Due to the tight schedule and heavy construction tasks of the expressway reconstruction and expansion project, the original construction process is inefficient and cannot meet the needs of the new situation

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