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

A technology of cement concrete and identification technology, which is applied in the direction of road repair, road, road, etc., can solve the problem that the effect of grouting repair cannot be guaranteed, and achieve the effect of avoiding adverse social influence, good durability, and rapid detection

Active Publication Date: 2008-09-10
王复明
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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

[0034] Example: The cement concrete pavement void recognition and polymer grouting rapid repair technology of the present invention includes the following contents:

[0035] Void recognition technology on cement concrete pavement,

[0036] (1) The method to identify whether there is void under the cement concrete slab by using the falling weight deflection tester (FWD) is: measure the deflection under three different levels of load at the same measuring point of the pavement slab, and establish the load and deflection Correlation. If there is no void at this position, the load deflection-related 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 located under the plate as void;

[0037] The relationship between load and deflection is as follows (as attached figure 1 )

[0038] D=aP+b

[0039] Among them: D-central deflection value, mm

[0040] P-loa...

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Abstract

The invention discloses a cement concrete pavement detachment identification and polymer grouting fast maintenance technology, which utilizes a falling weight deflectometer (FWD) and a ground penetrating radar (GPR) to detect and evaluate the performance of the pavement, identify the detachment situation of pavement slabs and realize the lossless and fast identification of the cement concrete pavement detachment. A grouting hole is perforated on the pavement slabs that need detachment treatment and polymeric materials are injected into the hole to repair the pavement. The maintenance technology 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 and avoids the adverse social effects caused by long affected traffic, but also is beneficial to environmental protection and resources-saving. The cement concrete pavement detachment identification and polymer grouting fast maintenance technology of the invention integrates detachment identification lossless detection technology such as the FWD and the GPR, etc. with the polymer grouting fast maintenance technology, thus providing a whole set of advanced, efficient, economical and practical technology for detecting and maintaining the cement concrete pavement detachment.

Description

Technical field [0001] The invention belongs to roadbed pavement detection, maintenance and repair technology, and particularly relates to cement concrete pavement void recognition and high polymer grouting rapid repair technology. Background technique [0002] Since the 1990s, my country's highway construction has developed rapidly. As one of the main pavement types of high-grade highways, cement concrete pavement occupies about 25% of the share in my country. It is predicted that by the end of 2010, my country's cement concrete pavement highway mileage will exceed 150,000 kilometers. However, due to various reasons, many cement concrete pavements cannot meet the needs of vehicle traffic soon after they are built, and various damage phenomena such as voids, subsidence, arching, severe crushing and cracks have occurred, among which voiding is The most common and common disease, if the void is not identified and treated in time, it will inevitably cause the fracture of the concret...

Claims

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Application Information

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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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