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Cement concrete road surface void identification and high polymer grouting rapid servicing technology

A cement concrete and polymer technology, which is applied in the field of void identification of cement concrete pavement and rapid repair of polymer grouting, can solve the problem that the effect of grouting repair cannot be guaranteed, avoid adverse social impact, protect the environment, Targeted effect

Active Publication Date: 2011-08-10
王复明
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AI Technical Summary

Problems solved by technology

Therefore, although the durability of polymer materials can reach more than 10 years, the effect of grouting maintenance cannot be guaranteed.

Method used

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  • Cement concrete road surface void identification and high polymer grouting rapid servicing technology
  • Cement concrete road surface void identification and high polymer grouting rapid servicing technology

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Embodiment

[0025] Embodiment: The cement concrete pavement void recognition and high polymer grouting rapid maintenance technology of the present invention includes the following contents:

[0026] Cement Concrete Pavement Void Recognition Method,

[0027] (1) The method of using the falling weight deflection meter (FWD) to identify whether there is void under the cement concrete slab is to measure the deflection under three different levels of load at the same measuring point of the road slab, and establish the relationship between the load and the deflection Correlation, if there is no gap at this position, the load deflection-related straight line passes through the origin or the deflection axis intercept is less than 50mm, otherwise, if the intercept is greater than 50mm, it can be considered that the measurement point is void under the plate;

[0028] The correlation between load and deflection is as follows (as attached figure 1 )

[0029] D=aP+b

[0030] Among them: D-central d...

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Abstract

The invention discloses a cement concrete pavement detachment identification and polymer grouting fast maintenance method based on a falling weight deflectometer (FWD) and a ground penetrating radar (GPR) non-destructive test technology. The FWD and GPR are utilized to identify the detachment situation of the cement concrete pavement. Polymeric materials are injected to the pavement segment which needs detachment treatment. After the materials react, the volume quickly expands and cures, the materials fill the pavement plate bottom and base, the subbase bottom detaches, thereby reaching the purpose for fast maintenance of the cement concrete pavement detachment. The maintenance method has the advantages of speedy construction, good durability, strong pertinence and excellent waterproof performance of the injected polymeric materials, which not only saves a large amount of funds and construction periods, but also is beneficial to environmental protection and resources-saving, and provides a new advanced, efficient, economical and practical method for fast maintenance of the cement concrete pavement detachment.

Description

technical field [0001] The invention belongs to the detection and maintenance technology of roadbed and pavement, and in particular relates to the technology of hollow identification of cement concrete pavement and rapid maintenance of high polymer grouting. Background technique [0002] Since the 1990s, my country's expressway construction has developed rapidly. Cement concrete pavement, as one of the main pavement types of high-grade highways, occupies about 25% of the share in our country. It is predicted that by the end of 2010, the mileage of my country's cement concrete pavement will exceed 150,000 kilometers. However, due to many reasons, many cement concrete pavements cannot adapt to the needs of vehicle traffic soon after they are built, and various damage phenomena such as hollowing out, subsidence, arching, severe brokenness and cracks have occurred, among which hollowing out is The most common and widespread disease, if the void is not identified and treated in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/42G01N3/00G01N23/18E01C23/10E01C23/06
Inventor 王复明张蓓钟燕辉蔡迎春石明生李强
Owner 王复明
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