Anti-rut pavement paving method capable of continuously paving base layer and surface layer

Abstract

The invention discloses an anti-rut pavement paving method capable of continuously paving a base layer and a surface layer, and belongs to the field of road engineering. The method is characterized inthat a super-early-strength anti-cracking cement stabilized macadam base layer is paved firstly, and after the base layer is rolled, a cold-mixed cold-paved rigid-flexible composite surface layer ispaved under the condition that the surface is still in a wet state. Compared with the prior art, according to the anti-rut pavement paving method capable of continuously paving the base layer and thesurface layer, continuous paving of the cement stabilized macadam base layer and the surface layer can be realized; maintenance time for 7 days of the cement stabilized macadam base layer can be omitted, meanwhile, the continuity of the base layer and the surface layer is improved, the overall cooperative stress of the pavement structure is guaranteed, a permeable layer and a macadam sealing layerdo not need to be sprayed on the surface of the cement stabilized macadam base layer, and the construction cost is reduced. Meanwhile, the cold-mixed and cold-paved rigid-flexible composite surface layer does not need centralized hot mixing, so that construction is convenient, resources are saved, and the environment is protected. The anti-rutt pavement structure with the base layer and the surface layer capable of being continuously paved has high high-temperature anti-rutting performance, anti-cracking performance, water stability and durability, and has high popularization and applicationvalues.

Description

technical field [0001] The invention relates to the field of road engineering, and specifically provides an anti-rutting pavement paving method in which a base layer and a surface layer can be continuously paved. Background technique [0002] Rutting problems are prone to occur on special road sections such as heavy-duty road sections with heavy traffic volume, traffic light intersections, parking platforms, and BRT special lanes, which seriously affect the service quality and service life of asphalt pavement, and bring many problems to road surface and road surface users. Hazards, reducing driving comfort. At present, preventing rutting on asphalt pavement has become an important research direction for road technicians. [0003] The asphalt pavement structure is divided into a surface course and a base course. The asphalt surface course in my country is mainly made of hot mix asphalt mixture, and the base course is mainly made of cement stabilized macadam. Hot-mix asphalt...

AI Technical Summary

Problems solved by technology

Although the base of cement-stabilized gravel mixture has high rigidity and good slab performance, the strength of the 1-2cm part of the surface of the base is often low due to water loss during the curing period, forming a layer of interlayer.

Moreover, it takes a long time for the strength of the cement-stabilized gravel mixture to form. The standard stipulates that the surface layer can be constructed after seven days of health preservation by sprinkling water or spraying emulsified asphalt. To a certain extent, the construction period is extended and the construction cost is increased.

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