Construction method for repairing bridge crack

A construction method and bridge technology, applied in bridges, bridge maintenance, bridge reinforcement, etc., can solve problems such as insufficient repair of cracks and difficulty in reaching hidden corners of repair materials, so as to reduce the generation of waste structural adhesive and improve the overall grouting Efficiency, the effect of prolonging the operating time

Inactive Publication Date: 2019-02-22
梁惠文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned existing technical solutions have the following defects: the construction process in the reference document belongs to the surface repair method, which will make it difficult for the repair material to reach some hidden corners of the cracks, thus causing the cracks to be repaired imperfectly

Method used

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  • Construction method for repairing bridge crack
  • Construction method for repairing bridge crack
  • Construction method for repairing bridge crack

Examples

Experimental program
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Embodiment Construction

[0052] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0053] refer to figure 1 , is a construction method for repairing bridge cracks disclosed in the present invention. The glue injection device that needs to be used includes a first glue storage tank 1 and a second glue storage tank 2 that are set independently of each other. In this embodiment, the first glue storage tank 2 The glue storage tank 1 and the second glue storage tank 2 store glue A and glue B respectively, wherein glue A is an amino-terminated polyurethane elastic prepolymer, glue B is bisphenol A epoxy resin, glue A and glue B are mixed Composition of two-component crack glue for repairing cracks in bridges3. A first air compressor 111 is connected outside the first glue storage tank 1 and the second glue storage tank 2 .

[0054] refer to figure 1 and figure 2 , the first glue storage tank 1 and the second glue storage tank 2 both include ...

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PUM

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Abstract

The invention relates to the technical field of bridge repairing, in particular to a construction method for repairing a bridge crack. The construction method for repairing the bridge crack includes the following steps that crack cleaning treatment is performed, the two sides of the crack are wiped and cleaned completely with an organic solution; the crack is closed with crack sealing glue, and agrouting port and an exhausting port are reserved in the two ends of the crack; a chassis of a grouting nozzle adheres to the crack with the crack sealing glue, so that a grout outlet of the groutingnozzle is aligned with the grouting port of the crack; after curing of the crack sealing glue, the crack sealing glue is coated with a layer of soapy water for sealing inspection; a proper amount of glue A and glue B are correspondingly injected into a reaction tank for sufficient mixing, then the two groups of crack glue after being mixed are injected into the grouting port through a third pipeline and the grouting nozzle, and after grout outflow in the exhausting port, pressurizing stops; and the grouting nozzle is disassembled and sealing treatment is performed. The construction method forrepairing the bridge crack is provided, the crack can be easily filled with a repairing material, the crack is repaired in a better condition, and the repairing efficiency of the crack is greatly improved.

Description

technical field [0001] The invention relates to the technical field of bridge repair, in particular to a construction method for repairing bridge cracks. Background technique [0002] Concrete is a heterogeneous brittle material formed by mixing sand and gravel aggregates, cement, water and other external materials. It has a high modulus of elasticity and low tensile strength. Shrinkage, the resulting tensile stress is often greater than the tensile strength of concrete at this age, resulting in micro-cracks in concrete. Micro-cracks are usually a kind of harmless cracks, which do not harm the load-bearing, anti-seepage and other functions of concrete. However, after the concrete is subjected to loads, temperature differences, etc., the micro-cracks will continue to expand and connect, and finally form macro-cracks that are visible to the naked eye, which is often referred to as cracks in concrete engineering. [0003] After cracks appear in the bridge, inspection and obse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 梁惠文
Owner 梁惠文
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