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Method of Repairing Asphalt Concrete Pavement Defects Using Combined Concrete Overlay

A technology of asphalt concrete and asphalt pavement, which is applied to the coagulation pavement, roads, roads and other directions laid on site to achieve the effect of saving cost, reducing damage and reducing the probability of being damaged.

Inactive Publication Date: 2015-08-05
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional asphalt pavement repair method cannot fundamentally reduce the occurrence of rutting diseases. In a high temperature environment, frequent starting and braking are likely to cause functional damage such as rutting and wrapping on the asphalt pavement.

Method used

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  • Method of Repairing Asphalt Concrete Pavement Defects Using Combined Concrete Overlay
  • Method of Repairing Asphalt Concrete Pavement Defects Using Combined Concrete Overlay
  • Method of Repairing Asphalt Concrete Pavement Defects Using Combined Concrete Overlay

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the examples, but the protection scope of the present invention is not limited to the scope expressed in the examples.

[0039] When using combined concrete overlay to repair asphalt concrete pavement defects, it is mainly divided into the following stages:

[0040] The first stage is to evaluate the condition of the old asphalt concrete pavement. In this stage, the bearing capacity of the asphalt pavement is mainly evaluated by using the drop weight deflection meter and / or / dynamic cone penetrometer to determine whether it is necessary to carry out preliminary reinforcement to ensure The durability of the repair method proposed by the present invention.

[0041] The specified supporting capacity mentioned needs to meet the following two conditions at the same time:

[0042] a. The road surface includes at least 50mm asphalt surface course;

[0043] b. The thickness of the base layer under the as...

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Abstract

The invention discloses a method for repairing asphalt concrete pavement distresses by utilization of combined-type concrete repaving surfacing. Firstly, the bearing capability of old asphalt pavements are evaluated through apparatuses, and the pavements with poor bearing capability are reinforced to reach the specified bearing capability; then the asphalt concrete pavements to be repaired are repaired; combined-type cement concrete repaving surfacing and transition section repaving surfacing are paved, finally joint-cutting is carried out on the repaving surfacing, and the repairing of the pavement distresses is finished. The method can be used for road intersection asphalt concrete pavement sections with serious distresses of wheel ruts, upheavals, waves and the like, can improve driving safety and comfortableness at intersections effectively, achieves good durableness and economy of combined-type concrete repaving surfacing and prolongs the service life of pavements.

Description

technical field [0001] The invention belongs to the field of road maintenance and repair, and relates to a method for repairing road surface defects, in particular to a method for repairing asphalt concrete road surface defects by using a combined concrete overlay. Background technique [0002] With the action of traffic load and environmental load, the performance of asphalt concrete pavement gradually deteriorates. At road intersections with asphalt concrete pavement, the defects caused by plastic deformation such as rutting, wrapping, and waves are particularly obvious. These diseases are mainly caused by frequent vehicle braking, severe traffic channelization, and insufficient shear strength of asphalt concrete. The disease seriously affects driving safety in rainy days at road intersections. The traditional asphalt pavement repair method cannot fundamentally reduce the occurrence of rutting diseases. In high-temperature environments, frequent starting and braking are l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C7/18
Inventor 陈达豪周吴军李昆
Owner CHINA THREE GORGES UNIV
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