A treatment method for reflective cracks on asphalt concrete pavement

A technology of asphalt concrete and a treatment method, applied in the field of asphalt concrete pavement, can solve problems such as affecting the driving comfort and service life of the road surface, high requirements for treatment methods, incomplete treatment, etc. High, low cost effect

Active Publication Date: 2016-09-28
CHINA MCC20 GRP CORP
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Problems solved by technology

However, in soft soil areas, especially on the asphalt concrete pavement on the upper part of underground structures, when cracks appear, conventional crack treatment methods are difficult to use. service life

Method used

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Embodiment Construction

[0023] Below, the present invention will be further described in combination with specific embodiments.

[0024] A method for treating reflective cracks on asphalt concrete pavement, comprising:

[0025] Step one, construction preparation. According to the situation of cracks, make a treatment plan and purchase various equipment;

[0026] Step 2, cutting out the cracked asphalt concrete pavement. Cut the asphalt concrete pavement sections with local cracks. When cutting, use a cutting machine to cut the asphalt concrete neatly. The cutting requirements are: from top to bottom in the form of steps, the cutting range of the surface layer is large, and the cutting range at the bottom becomes smaller. Cut to the top of the cement stabilized base;

[0027] Step 3, chisel out the base of the crack. After the cutting of asphalt concrete is completed, check the cracks in the base, chisel out the loose base in the base, and clean up the waste of the base;

[0028] Step 4: Drill ho...

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Abstract

The method of the invention relates to a treatment method for asphalt concrete pavement cracks. A method for treating reflective cracks on an asphalt concrete pavement, which includes: cutting off the asphalt concrete pavement section with local cracks; after the asphalt concrete is cut, checking the cracks in the base, removing the loose base in the base, and cleaning the removed base waste; along the cracks of the base structure, the grouting holes are arranged longitudinally, and the grouting holes are arranged along the middle of the cracks; the grouting material slurry is prepared by mixing ordinary Portland cement with water to form a pure cement slurry; restoring the cracked asphalt concrete pavement, The asphalt structure layer is paved with anti-crack paste and glass fiber grid for reinforcement treatment. After the pavement structure layer is restored, the cracks are compacted from bottom to top with layered fillers. The degree of compaction refers to the original design requirements; road surface monitoring, testing and acceptance. The invention has the advantages of high treatment effect, complete restoration of pavement crack treatment, short construction period, low cost, safe construction, high work efficiency and high application value.

Description

technical field [0001] The method of the invention relates to asphalt concrete pavement, in particular to a crack treatment method for asphalt concrete pavement. Background technique [0002] On highways, municipal roads and other roads, asphalt concrete is mostly used as the road surface. However, during the use of asphalt concrete pavement, cracks often appear on the pavement due to load, settlement, slippage, weather and other reasons. After cracks appear on the asphalt concrete pavement, there are many ways to deal with them. Generally, cracks in the surface layer due to excessive load can be treated by pouring joints, overturning the cut surface, etc. However, in soft soil areas, especially on the asphalt concrete pavement on the upper part of underground structures, when cracks appear, conventional crack treatment methods are difficult to use. service life. Contents of the invention [0003] The present invention aims to solve the above problems and provides a met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C23/09
CPCE01C7/187
Inventor 许海岩黄晓亮谢非李修岩许利捷高原
Owner CHINA MCC20 GRP CORP
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