One-time pavement heavy traffic asphalt pavement structure and construction method

Abstract

The invention belongs to the technical field of road engineering and relates to a pitch road surface structure, in particular to a one-time pavement type heavy traffic pitch road surface structure and a construction method. The one-time pavement type heavy traffic pitch road surface structure comprises a rubber pitch ultra-thin wearing layer, a superfine particle high-viscosity modified emulsified pitch bonding layer, a high-modulus pitch concrete bearing layer and a rubber pitch stress absorption layer which are arranged from top to bottom in sequence, wherein the thickness of the rubber pitch ultra-thin wearing layer is 1.5-2.5 cm, the thickness of the superfine particle high-viscosity modified emulsified pitch bonding layer is 0.15-0.25 cm, the thickness of the high-modulus pitch concrete bearing layer is 9-10 cm, and the thickness of the rubber pitch stress absorption layer is 1.5-2.5 cm. The road surface structure is good in high-temperature stability, and the pitch road surface structure layers are thin, the service life is long, and the building and maintaining cost is low.

Description

technical field [0001] The invention belongs to the technical field of road engineering, and relates to an asphalt pavement structure, in particular to a one-time pavement type heavy traffic asphalt pavement structure and a construction method. Background technique [0002] Asphalt concrete pavement belongs to flexible pavement, which has the characteristics of flat surface, no joints, comfortable driving, low vibration, low noise, wear resistance, no dust and easy cleaning, short construction period, and easy maintenance and repair. Main pavement structure layer of the road. [0003] In recent years, with the rapid development of my country's transportation industry, the traffic volume of highways has become larger and larger, the number of heavy vehicles has increased rapidly, heavy loads, overloading, and channelized traffic have become more and more serious, and continuous high-temperature weather has occurred frequently. Many factors lead to high temperature on the road...

AI Technical Summary

Problems solved by technology

Due to various reasons such as the thinner asphalt surface layer of some highways, tight construction period, unreasonable structure, poor material quality, rapid increase in traffic volume after traffic release, and overloaded vehicles, the early The phenomenon of damage, as the service life of the pavement continues to increase, this shallow, slight disease will further develop, and finally lead to the performance of each pavement structure layer and base layer cannot meet the requirements of traffic load, and need deep, Large-depth milling, digging, and re-paving, a large number of asphalt mixtures and base materials are discarded. On the one hand, it causes environmental pollution. On the other hand, it is a waste of resources for a country where high-quality asphalt is extremely scarce. Moreover, with the large-scale use of new stone materials and the mining of stone mines, it will lead to serious ecological environment damage such as forest vegetation reduction and soil erosion.

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