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Method for rut maintaining and paving of municipal road

A technology for municipal roads and rutting is applied in the field of municipal road rutting maintenance and paving to achieve the effects of dispersing compressive stress, suppressing reflection cracks, and preventing interlayer slippage.

Active Publication Date: 2014-07-30
悉地(苏州)勘察设计顾问有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the rutting problem of the current municipal roads, and provides a municipal road rutting maintenance and paving method considering the anti-skid, wear resistance, long life of the road surface, recycling of waste asphalt, etc.

Method used

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  • Method for rut maintaining and paving of municipal road
  • Method for rut maintaining and paving of municipal road
  • Method for rut maintaining and paving of municipal road

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] As shown in Figure 1, a kind of municipal road rut maintenance pavement method comprises the following steps:

[0062] 1) Asphalt surface layer milling: use a milling machine to mill the asphalt surface layer layer by layer until the original pavement base layer is exposed. If there are cracks in the base layer, the joints need to be filled, and the milling material is sent to the factory for cold recycling and mixing Station for screening, divided into three grades of material: 0-5mm, 5-15mm, 15-30mm;

[0063] 2) Spreading of modified emulsified asphalt sticky layer: After the milling of the asphalt surface layer of the original pavement is completed, the surface of the base layer is cleaned, dried and then spread SBS modified emulsified asphalt. The spread amount of SBS modified emulsified asphalt is 0.5kg / m 2 ,SBS modified emulsified asphalt is from Jiangsu Keinge Special Asphalt Co., Ltd.;

[0064] 3) Paving of the lower layer of emulsified asphalt cold recycled m...

Embodiment 2

[0120] A municipal road rut maintenance pavement method, comprising the following steps:

[0121] 1) Asphalt surface layer milling: use a milling machine to mill the asphalt surface layer layer by layer until the original pavement base layer is exposed. If there are cracks in the base layer, the joints need to be filled, and the milling material is sent to the factory for cold recycling and mixing The station screens and divides into three grades of materials (0-5mm, 5-15mm, 15-30mm) for processing;

[0122] 2) Spreading of modified emulsified asphalt sticky layer: After the milling of the asphalt surface layer of the original pavement is completed, the surface of the base layer is cleaned, dried and then spread SBS modified emulsified asphalt. The spread amount of SBS modified emulsified asphalt is 0.6kg / m 2 , SBS modified emulsified asphalt is from Jiangsu Keinge Special Asphalt Co., Ltd.;

[0123] 3) Paving of the lower layer of emulsified asphalt cold recycled mixture; ...

Embodiment 3

[0179] A municipal road rut maintenance pavement method, comprising the following steps:

[0180] 1) Asphalt surface layer milling: use a milling machine to mill the asphalt surface layer layer by layer until the original pavement base layer is exposed. If there are cracks in the base layer, the joints need to be filled, and the milling material is sent to the factory for cold recycling and mixing The station screens and divides into three grades of materials (0-5mm, 5-15mm, 15-30mm) for processing;

[0181] 2) Spreading of modified emulsified asphalt sticky layer: After the milling of the asphalt surface layer of the original pavement is completed, the surface of the base layer is cleaned, dried and then spread SBS modified emulsified asphalt. The spread amount of SBS modified emulsified asphalt is 0.65kg / m 2 , SBS modified emulsified asphalt is from Jiangsu Keinge Special Asphalt Co., Ltd.;

[0182] 3) Paving of the lower layer of emulsified asphalt cold recycled mixture; ...

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Abstract

The invention provides a method for rut maintaining and paving of a municipal road. The method comprises the following steps: (1) milling an asphalt surface layer; (2) spreading a modified emulsified asphalt bonding layer; (3) paving an emulsified asphalt cold-recycling mixture lower surface layer; (4) paving a high-elasticity rubber asphalt stress absorption layer; and (5) paving a cement-asphalt pouring type composite pavement surface layer. The combined paving layer obtained through the method has an excellent anti-rutting property and can sufficiently utilize a milled waste asphalt mixture; the integral structure has the characteristics of high rutting resistance, skid resistance, abrasion resistance, long life and low carbon.

Description

technical field [0001] The invention relates to a municipal road rut maintenance pavement method, which belongs to the field of new building materials and the field of highway engineering application. Background technique [0002] At present, municipal roads are prone to rutting phenomenon, especially at municipal road intersections. Rutting is likely to cause many problems such as pothole cracking, which aggravates the damage of the road surface. Many municipal road intersections are basically milled and repaired every year, which not only greatly aggravates the traffic congestion, but also wastes a lot of maintenance funds. [0003] At present, the rutting problem of the road surface is mainly solved by using SMA or anti-rutting agent. For example, SMA is used in the upper layer, and 0.3-0.6% anti-rutting agent is added in the middle layer to improve the anti-rutting performance of the asphalt pavement, but the cost of the one-time project is too high. In addition, the r...

Claims

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Application Information

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IPC IPC(8): E01C7/32
Inventor 朱荣军洪锦祥赵国强黄冲王健沈学芳王文达邓成李国峰郑栋钮凯健戈若愚
Owner 悉地(苏州)勘察设计顾问有限公司
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