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

A technology of asphalt pavement and construction method, which can be applied to cohesive pavement paved on site, roads, roads, etc., and can solve the problems that the performance of structural layers and base layers cannot meet the traffic load, poor material quality, and unreasonable structures, etc. Achieve the effects of easy control of project quality, good viscosity and toughness, and shortened construction period

Active Publication Date: 2018-06-26
广东天诺公路工程材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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

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Embodiment

[0040] The project overview of this embodiment: a county road (K000+000~K005+000) third-class road, the road width is 8.5 meters, the design speed is 60Km / h, it is an important heavy-duty resource road in this area, and the road section is distributed 1 cement plant with an annual output of 3 million tons of clinker, 2 crushed stone processing plants with an annual output of more than 2 million tons and other industrial and mining processing enterprises. According to the actual measurement results of its traffic load and daily average traffic volume, and according to the division of "Code for Design of Highway Asphalt Pavement" (JTGD50-2006), this road section is a heavy traffic road.

[0041] According to the conditions and characteristics of this road section, the asphalt pavement structural layer adopts the scheme of the present invention to carry out the following design:

[0042] 1) Structural design

[0043] Wearing layer: The mixture of 2cm rubber asphalt ultra-thin we...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C7/32
CPCE01C7/32
Inventor 郭兆民封昕潘亚军李秋飞柳卫军肖护兵张玉贞
Owner 广东天诺公路工程材料有限公司
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