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Method for quickly repairing concrete pavement defects

A technology for concrete pavement and defects, which is applied in the direction of road repair, road, road, etc., can solve the problems of re-cracking of repaired concrete, large amount of repair work, and large repair area, so as to improve service life and high flexural strength , Strong adhesion effect

Inactive Publication Date: 2018-11-06
CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to overcome the defects in the above-mentioned existing concrete pavement repair technology, such as large amount of repair work, large repair area, frequent falling off of joint joints, and re-cracking of repair concrete, etc. On the basis of using the undamaged concrete of the original pavement, the method for quickly repairing the defects of the concrete pavement reduces the amount of pavement repairing, has strong impact resistance and wear resistance, and has fast repairing speed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1: Xiaolangdi Special Line Highway in Luoyang City;

[0044] Pavement defects in the concrete pavement of the Xiaolangdi Special Line occurred during the construction of the Xiaolangdi Project, and the road transportation was very busy. In order to ensure the traffic flow, the defect repair was carried out by "inverted edge segmentation", that is, on the two-lane pavement Repair a section of the half-width fence of the road first, and open traffic on the other side. After the repair of half of the pavement is completed, the other half of the fence is repaired, and the repaired road is opened to traffic. In order to open up traffic as soon as possible after the pavement concrete defects are repaired, epoxy grouting is used to treat pavement concrete cracks, and the pavement potholes and expansion joints are filled with epoxy asphalt cement.

[0045] One. The steps of repairing road cracks in this project are as follows:

[0046] 1. Use a concrete cutter to make a deep...

Embodiment 2

[0050] Example 2: Jinping Tunnel Road Repair

[0051] 1. Project brief

[0052] Jinping I Hydropower Station is a national key project located at the junction of Muli County and Yanyuan County in Sichuan Province. The power station is located in high mountains and valleys, with harsh terrain conditions. According to different functions and requirements, the on-site traffic engineering adopts the second-level open-pit mine and third-level open-pit mine standards. The total length of traffic roads is 57.18km, and there are 42 tunnel projects. Among them, the road tunnel with a construction boundary of 12.0m*5.0m is 13.96km long; The road tunnel with a building boundary of 10.5m*5.0m is 7.529km long; the road tunnel with a building boundary of 12.0m*5.0m is 13.96km; the road tunnel with a building boundary of 8.5m*4.5m is 9.016km and the total length of the tunnel is 31.022km, accounting for the total length of the line 54.25%. After many years of road operation, some road sections...

Embodiment 3

[0066] Example 3: Genglou Control Gate Project of Shaying River in Taihe, Anhui

[0067] 1. Project brief

[0068] The Taihe Shaying River Genglou Junction Project is located in Genglou Village on the left bank of the Shaying River. The entire hub is composed of a control lock and a ship lock. The function of the Genglou Junction is to adjust and control the water level of the Shaying River, increase the water storage capacity, and ensure that the water level below the sinking hills in the Shaying River in Henan can reach the standard of a single ship of 1,000 tons. The construction of the Genglou Junction project is of great significance. After the completion of the project, the entire channel of the Shaying River can be upgraded from the current five-level channel to a four-level channel. Single ships of 300 to 1,000 tons and tugboats of thousands of tons can directly reach Zhoukou Port. It will become the "bridgehead" of our province's westward expansion from Henan to the east...

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PUM

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Abstract

The invention relates to a method for quickly repairing concrete pavement defects. The method comprises the following steps: (1) opening a groove in a crack needing to be repaired, wherein the grooveis 2-3 mm in width and 3-5 cm in depth, blowing accumulated water in the groove, injecting epoxy slurry in the crack, covering the upper part of the groove filled with the slurry with strip-shaped plastic cloth, drilling inclined holes in one side of the crack along the length direction of the crack, pouring the epoxy slurry in each drilled inclined hole and plugging the drilled inclined holes after pouring the epoxy slurry in the inclined holes; and (2) cleaning and polishing hollow parts needing to the repaired until the hollow part is lower than the concrete surface outside the hollow partby 3-4 mm, performing epoxy slurry injection treatment on the crack on the concrete surface of the repaired part, pouring the prepared epoxy bituminous grout or epoxy bituminous mortar in the hallow part to be repaired, beating packing by using a rubber hammer until the packing is flush with the concrete surface of a pavement, covering with the strip-shaped plastic cloth after finishing leveling,and repairing after curing. The invention provides the method for quickly repairing concrete pavement defects which has the advantages that on the basis of not damaging or using the undamaged concreteon an original pavement as far as possible, the pavement repairing treatment quantity is reduced, the impact and wear resistance is high, and the repairing speed is high.

Description

Technical field [0001] The invention relates to the field of road construction, in particular to a method for quickly repairing concrete pavement defects. Background technique [0002] Concrete pavement refers to the pavement with concrete as the main material as the surface layer, also known as rigid pavement, commonly known as white pavement, it is a high-level pavement. Concrete pavements include plain concrete, reinforced concrete, continuously reinforced concrete, prestressed concrete, steel fiber concrete and fabricated concrete. Its characteristic is that the service life is longer than other roads, but once damaged, it will develop rapidly, causing road traffic accidents. [0003] Concrete pavement defects mainly include concrete panel cracks, pavement potholes, and concrete fragmentation on both sides of expansion joints. After cracks occur in the pavement concrete, if they cannot be repaired in time, the cracks will quickly extend until the panel breaks. In general, fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C11/00E01C23/09
CPCE01C11/005E01C23/096
Inventor 陈敦刚唐昌科肖芳
Owner CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD
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