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Bituminous pavement top-crack or settlement treating method

A treatment method and asphalt pavement technology, which is applied in the field of subsidence treatment and asphalt pavement surface layer cracks, can solve problems such as palliatives rather than root causes, achieve low prices, avoid repeated maintenance, and restore complete effects

Inactive Publication Date: 2005-12-21
邓敬森
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method treats the symptoms but not the root cause. After a period of use on the treated part, the subsidence disease reappears.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The construction embodiment that is used for asphalt pavement surface layer crack or subsidence that the present invention provides now in detail:

[0011] First, make grouting holes along the cracks or subsidence areas of the surface layer. The hole diameter depends on the grouting material. The hole row spacing is 30-200 cm, and the hole depth is 40-400 cm. At least the surface layer and the base layer must be penetrated. For a single crack, it is enough to make a single row of grouting holes along the crack. For the disease of network cracks or subsidence, the grouting holes should be distributed in the diseased area in a quincunx pattern. Then, choose a grouting hole to install a grouting head, and connect a grouting pump to grout, and the grouting pressure is less than or equal to 0.5 MPa. The grouting material can choose inorganic cement paste, cement mortar with appropriate amount of admixture, or organic asphalt and polymer materials with elasticity and toughnes...

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Abstract

The invention discloses processing technique dealing with asphalt pavement sink and crack, which includes following steps: drill pouring holes at cracking area piercing face and ground; pouring material into the holes and fix the ground, sealing the holes; make slots along surface gaps, fill the slots till the sinking area is flush with the ground, block the section till pulp material coagulates till the normal service will not damage the pouring pulp again. By pouring pulp material into pouring holes at sinking area, the rigidity of ground base and surface is enhanced effectively so to keep the ground from further damage, lengthening the road service life greatly.

Description

technical field [0001] The invention relates to a treatment method for the cracks and subsidence of the asphalt pavement surface layer, in particular to a repair construction method which is beneficial to the reinforcement of the base layer of the highway asphalt pavement. Background technique [0002] Asphalt pavement often has surface cracks or subsidence and other diseases. In rainy days, water infiltrates into the base layer from cracks in the pavement. Under the action of traffic load, grouting occurs at the cracks, and the cement-stabilized gravel falls off and becomes loose due to water. The bearing capacity of the pavement structure is insufficient. Cracks or potholes, subsidence, etc., cause the vehicle to jump when driving, which seriously affects the service life of the road, and also affects the safety and comfort of driving, and affects the appearance of the road. [0003] Conventional methods for dealing with cracks or subsidence in asphalt pavement include: ①...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C23/10
Inventor 邓敬森
Owner 邓敬森
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