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Construction method for large-gap drainage asphalt concrete pavement under assistance of warm mixing aid

A technology for draining asphalt and warm mix adjuvant, applied in the field of asphalt pavement, can solve the problems of reduced service life of the pavement and the turnover of the construction period, no way to adapt to the road, no way to reduce the mixing and other problems, so as to reduce the consumption of artificial tools and prolong the construction window. period, the effect of reducing energy consumption

Inactive Publication Date: 2021-06-18
浙江博时市政园林建设有限公司
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Problems solved by technology

[0002] With the rapid development of road construction in my country, the focus of road construction units has gradually shifted from "large-scale construction" to "simultaneous construction and maintenance". At present, road construction units have basically accepted the viewpoint of road preventive maintenance technology; but now In road construction and maintenance, there is no way to adapt to the weather of the season for road maintenance; there is no way to reduce the aging of asphalt during mixing and construction, which reduces the service life of the road surface and the turnover of the construction period.

Method used

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  • Construction method for large-gap drainage asphalt concrete pavement under assistance of warm mixing aid
  • Construction method for large-gap drainage asphalt concrete pavement under assistance of warm mixing aid

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0029] refer to Figure 1-2 , the construction method of asphalt concrete pavement with large void drainage under warm mixing additives, including the following steps:

[0030] In the present invention, preferably, the paving of the mixture; S1. Before paving, check whether the width and height of the screed of the paver are appropriate, and adjust the automatic leveling device.

[0031] S2. The left computer slide shoe of a paver is placed on the baseline, and the right computer slide shoe is placed on the baseline. During the paving process, check the layer thickness and cross slope at any time. If it does not meet the requirements, adjust it in time, and the paver will move forward. Maintain a constant speed during the process, but it can be adjusted appropriately accordin...

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Abstract

The invention belongs to the technical field of asphalt pavements, particularly relates to a construction method for a large-gap drainage asphalt concrete pavement under the assistance of a warm mixing aid. The invention aims to solve the technical problems that road maintenance cannot be adapted to current weather in existing road construction and maintenance and that the service life of a pavement and the turnover period of a construction period are both reduced since asphalt aging during mixing and construction cannot be reduced. According a technical scheme in the invention, an aqueous surface active additive solution (a warm mix agent) is added in an external mixing mode in the mixing process of an asphalt mixture and co-acts with asphalt, so uniform dispersion is realized, the coating capacity and the adhesive force of the asphalt and stones are improved, the workability of the mixture is improved, and the mixing and construction temperature of the mixture is reduced by about 30 DEG C; and as the construction temperature is reduced by 30 DEG C, energy consumption in an asphalt mixing process can be reduced, and meanwhile, the low-temperature asphalt can reduce the volatilization of toxic gas.

Description

technical field [0001] The invention relates to the technical field of asphalt pavement, in particular to a construction method of asphalt concrete pavement with large gap drainage under warm mixing additives. Background technique [0002] With the rapid development of road construction in my country, the focus of road construction units has gradually shifted from "large-scale construction" to "simultaneous construction and maintenance". At present, road construction units have basically accepted the viewpoint of road preventive maintenance technology; but now In road construction and maintenance, there is no way to adapt to the weather of the season for road maintenance; there is no way to reduce the aging of asphalt during mixing and construction, which reduces the service life of the road surface and the turnover of the construction period. Contents of the invention [0003] Based on the technical problem that there is no way to adapt to the current season's weather in t...

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Application Information

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IPC IPC(8): E01C7/18E01C19/48
CPCE01C7/18E01C19/4873Y02A30/60
Inventor 徐亚利郭春锋吴陈虎
Owner 浙江博时市政园林建设有限公司
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