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Low-carbon rapid maintenance and pavement method for asphalt pavement ruts

A technology of asphalt pavement and asphalt surface layer, which is applied in the field of asphalt pavement rutting low-carbon rapid maintenance pavement, which can solve the problems of long demulsification time and affecting the opening time of traffic, etc., to improve the anti-rutting performance and adjust the demulsification time Excellent effect of controllable, temperature and weather resistance

Active Publication Date: 2021-11-09
浙江固路交通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When hot asphalt is traditionally used as the binder of matrix concrete, it needs to be heated and mixed for paving. After paving, it must be cooled for at least 3 hours before the subsequent grouting step. During construction in the summer high temperature season, the cooling time is as long as 7 hours or more, seriously affecting the open traffic time
When emulsified asphalt is used as the binder of base concrete, although heating and mixing is not required, the demulsification time is long, and it usually takes 3 days to proceed to the next grouting process. Therefore, we need to propose a low-carbon and fast Maintenance pavement method

Method used

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  • Low-carbon rapid maintenance and pavement method for asphalt pavement ruts
  • Low-carbon rapid maintenance and pavement method for asphalt pavement ruts
  • Low-carbon rapid maintenance and pavement method for asphalt pavement ruts

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Embodiment 1

[0031] Such as figure 1 Shown, a kind of municipal road rutting low-carbon rapid maintenance pavement method, comprises the following steps:

[0032] 1) Asphalt surface layer milling: use a milling machine to mill the asphalt surface layer until the original pavement base layer is exposed. If there are cracks in the base layer, it needs to be filled;

[0033] 2) Paving of high-viscosity emulsified asphalt gravel seal layer: After the milling of the asphalt surface layer of the original pavement is completed, the surface of the base layer shall be cleaned, dried in the sun, and cracks and other diseases of the base layer shall be treated. Pave high-viscosity modified emulsified asphalt, the spreading amount of high-viscosity modified emulsified asphalt is 2.5kg / m2; the spreading amount of crushed stone is 6kg / m2; Viscosity 250000Pa.s;

[0034] 3) Pavement of cold-mixed and cold-paved pouring composite pavement surface;

[0035] The pavement of cold-mixed and cold-paved poura...

Embodiment 2

[0064] A municipal road rut maintenance pavement method, comprising the following steps:

[0065] 1) Asphalt surface layer milling: use a milling machine to mill the asphalt surface layer until the original pavement base layer is exposed. If there are cracks in the base layer, it needs to be filled;

[0066] 2) Paving of high-viscosity emulsified asphalt gravel seal layer: After the milling of the asphalt surface layer of the original pavement is completed, the surface of the base layer shall be cleaned, dried in the sun, and cracks and other diseases of the base layer shall be treated. Spread SBS modified emulsified asphalt, the spread amount of SBS modified emulsified asphalt is 3.0kg / m2; the amount of gravel spread is 8kg / m2; the solid content of high viscosity modified emulsified asphalt is 65%, and the dynamic viscosity of the evaporation residue at 60°C is 350000Pa .s;

[0067] 3) Pavement of cold-mixed and cold-paved pouring composite pavement surface;

[0068] The pa...

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Abstract

The invention discloses a low-carbon rapid maintenance and pavement method for asphalt pavement ruts. The method comprises the following steps: (1), milling an asphalt surface layer; (2), paving a super-viscous emulsified asphalt macadam sealing layer; and (3), paving the surface layer of the cold-mixing and cold-paving pouring type composite pavement. The combined pavement layer obtained by the method has the characteristics of excellent rut resistance, simple maintenance process and environmental protection, and the whole structure has the characteristics of high rut resistance, skid resistance, wear resistance, long service life and low carbon.

Description

technical field [0001] The invention relates to the field of new building materials, in particular to a method for quick and low-carbon maintenance and paving of asphalt pavement rutting. Background technique [0002] Rutting phenomenon is very easy to appear on the national and provincial arterial roads in our country. The rutting phenomenon is particularly prominent at the intersection of national and provincial arterial roads. The rutting is easy to cause many problems such as potholes and cracks, which aggravates the damage of the road surface. Some roads in heavy-duty areas reach annual milling maintenance. , not only greatly aggravated the traffic jam situation, but also wasted and took up a large amount of maintenance funds. [0003] Many engineering cases show that SMA and anti-rutting agents can effectively solve the anti-rutting phenomenon of expressways, but they are powerless to solve the problem of rutting at the intersection of national and provincial arterial ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/18E01C7/20E01C7/35E01C23/088E01C23/09
CPCE01C7/187E01C7/20E01C7/35E01C23/088E01C23/09Y02W30/91Y02A30/60
Inventor 蒋倜军付廷军童立清陈帝江刘伟叶文雅龚杰琳黄冲朱汉华
Owner 浙江固路交通科技有限公司
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