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Asphalt concrete pavement reflection crack treatment method

A technology of asphalt concrete and reflective cracks, which is applied to the coagulation pavement, roads, roads and other directions paved on site, can solve the problems of affecting the driving comfort and service life of the road surface, high requirements for treatment methods, and incomplete treatment. Avoid large-scale excavation of the base, high treatment effect and low cost

Active Publication Date: 2015-02-11
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

[0024] Below, the present invention will be further described in combination with specific embodiments.

[0025] A method for treating reflective cracks on asphalt concrete pavement, comprising:

[0026] Step one, construction preparation. According to the situation of cracks, make a treatment plan and purchase various equipment;

[0027] 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;

[0028] 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;

[0029] Step 4: Drill ho...

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Abstract

The invention relates to an asphalt concrete pavement reflection crack treatment method. The asphalt concrete pavement reflection crack treatment method comprises the following steps: removing asphalt concrete pavement sections with local cracks; detecting the crack conditions of the basement layer after the asphalt concrete cutting operation is finished, removing partial loose basement layer in the basement layer, and eliminating the removed basement layer wastes; longitudinally forming injected holes along the cracks of the basement layer structure, wherein the injected holes are formed along the middle of the cracks; preparing injecting paste material slurry, namely mixing and stirring ordinary Portland cement and water, thereby obtaining pure cement grout; restoring the cracked asphalt concrete pavement, laying anti-crack stickers and glass fiber grids on the asphalt structure layer in a layered mode, performing reinforcing treatment, and performing layered packing compaction on the cracks from bottom to top after the pavement structure layer is restored, wherein the compaction degree refers to the original design requirement; and monitoring, detecting and inspecting the pavement. The method disclosed by the invention is high in treatment effect, short in construction period, low in cost, safe in construction and high in working efficiency and has high application values, and the pavement crack treatment is restored in place.

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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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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