Low pressure pouring closing method for concrete grouped cracks

A technology for concrete and concrete surface, applied in the field of concrete, can solve the problems that affect the acceptance of new projects, unsatisfactory effects, etc., and achieve the effects of low repair cost, reliable crack sealing quality, and improved durability.

Inactive Publication Date: 2019-10-29
CCCC SECOND HARBOR ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in actual engineering, most of the cracks are network cracks, and the distribution is relatively dense. The effect of this me...

Method used

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  • Low pressure pouring closing method for concrete grouped cracks
  • Low pressure pouring closing method for concrete grouped cracks

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] like Figure 1~2 Follow the steps below to repair the first group of cracks in the concrete to be repaired;

[0026] 1. Process the formwork 3, and process a suitable formwork 3 according to the range of group cracks on the surface of the concrete structure 1 to be repaired. The formwork 3 is a plate-like structure with a smooth surface, which can cover most of the group cracks, and is in a regular shape, which is convenient for final For fixed installation, reserve injection holes on template 3;

[0027] 2. Clean the surface of the concrete structure 1 to be repaired, use a grinding wheel, a wire brush or similar tools to remove the dirt, dust, etc. on the surface of the cracked area of ​​the concrete group, that is, clean the concrete surface in the area covered by the template 3, and for the area covered by the template 3 ...

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Abstract

The invention relates to the technical field of bridge engineering, in particular to a low pressure pouring closing method for concrete grouped cracks. The method comprises the following steps: processing a proper template according to a range of grouped cracks on the surface of a to-be-repaired concrete structure; cleaning the cracks; fixing the template to the surfaces of the concrete grouped cracks; mounting a glue pouring nozzle to seal the cracks; injecting glue into the cracks through the glue pouring nozzle; after life-preserving curing, removing the template; and polishing the surfaceof the glue-injected concrete to finish construction. The crack repair method is simple and convenient to operate, can repair the concrete grouped cracks well, is low in repair cost and good in repaireffect, and has extremely huge promotional value.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a method for closing concrete group cracks by low-pressure pouring. Background technique [0002] In recent years, my country's construction projects have developed very rapidly. The concrete structure has become the main structural form of infrastructure projects due to its advantages of low material consumption, fast construction, and good durability. However, its own cracking problem is a common and difficult problem. solved problem. [0003] At present, pressure grouting or suction grouting are mostly used to seal non-structural stress cracks; this method is suitable for the treatment of single cracks. However, in actual engineering, most of the cracks are network cracks, and the distribution is relatively dense. The effect of this method is not ideal in closing this group of cracks; and it will leave more obvious "scars", which will affect the acceptance of new projects. ...

Claims

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Application Information

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IPC IPC(8): E04G23/02
CPCE04G23/0203E04G23/0211
Inventor 邱业亮盛海军李少芳李军兵高明周龙晏国泰艾杰王虑窦昕玥胡先朋许可
Owner CCCC SECOND HARBOR ENG
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