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Plateau area asphalt pavement construction method

A technology of asphalt pavement and construction method, which is applied in the direction of roads, roads, road repairs, etc. It can solve the problems of rapid heat dissipation of the mixture and affect the quality of road construction, so as to improve the rolling time, reduce maintenance and repair costs, and ensure construction quality. Effect

Inactive Publication Date: 2019-08-02
青海省交通科学研究院
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Problems solved by technology

[0003] In view of this, the embodiment of the present invention provides a construction method of asphalt pavement in plateau areas, the main purpose of which is to solve the problem that the mixture dissipates heat quickly during paving construction and affects the quality of pavement construction

Method used

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  • Plateau area asphalt pavement construction method
  • Plateau area asphalt pavement construction method
  • Plateau area asphalt pavement construction method

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Embodiment 1

[0041] A construction method for asphalt pavement in plateau area, comprising the following steps:

[0042] (1) Asphalt mixture mixing:

[0043] ①The amount and temperature of various materials are automatically controlled by electronic systems; the heating temperature of the mixture, especially the asphalt heating temperature, is controlled in strict accordance with the specifications and test data, so that the asphalt mixture can be mixed evenly without causing asphalt aging;

[0044] ②According to the mixture oil-stone ratio determined by design and test, strictly control the weight of various minerals and the amount of asphalt, and input them into the control computer of the mixing station for automatic execution;

[0045] ③The size of the screen mesh of the mixer should match the specifications of the ore material; different types of mixture should be equipped with different combinations of screen holes, which can be selected by referring to Table 1;

[0046] Table 1. Eq...

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Abstract

The invention discloses a plateau area asphalt pavement construction method and relates to the technical field of highway construction. The plateau area asphalt pavement construction method comprisesthe step of correspondingly arranging mobile wind break walls along the two sides of a construction pavement during constructing a plateau area asphalt pavement, wherein the length of the wall arranged on single side every time is not less than 200 m, the height of the wall arranged on single side every time is not less than 50 m, the bottom of the wall is in close contact with the ground, and thematerials of the mobile wind break walls are wind proof materials used for reducing temperature loss of asphalt mixture in the paving process. The specific construction method comprises the steps of(1) blending asphalt mixture, (2) transporting a mixed material, (3) paving the mixed material; and in the construction process, arranging the mobile wind break walls when the wind power reaches grade4 or above, and (4) rolling the mixed material. According to the plateau area asphalt pavement construction method, through adoption of the wind break walls, the temperature loss of the asphalt mixture can be reduced, and the asphalt pavement paving quality can be improved; and the plateau area asphalt pavement construction method is very suitable for severe construction environments with low temperature, high wind speed, low surface temperature and the like in plateau areas.

Description

technical field [0001] The invention relates to the technical field of highway construction, in particular to a construction method of asphalt pavement in plateau areas. Background technique [0002] Due to the harsh natural environment in the plateau area, low temperature, high wind speed, changeable climate, low surface temperature, long distance and other reasons, in the paving construction of asphalt pavement, under the action of low temperature environment and wind force, the mixture is very sensitive to the temperature. Sensitive, heat dissipation is fast, effective rolling time is greatly shortened, it is difficult to meet the requirements of road construction specifications, construction quality cannot be effectively guaranteed, maintenance and repair costs after opening to traffic increase, project quality warranty costs are high, and the service life of the road is reduced. . SUMMARY OF THE INVENTION [0003] In view of this, the embodiment of the present invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C19/18E01C19/26
CPCE01C19/185E01C19/266
Inventor 晁刚薛兆锋李凌云程文东马亮王青志冶炯
Owner 青海省交通科学研究院
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