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Waterproof structure repaired by epr deformation joints and its construction method

A construction method and deformation joint technology are applied in the field of EPR deformation joint repair water-stop structure and its construction, which can solve the problems of low tensile strength, water leakage, low strength, etc. simple water structure

Active Publication Date: 2015-09-30
宁波高新区百茂高分子材料有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above methods are all rigid plugging schemes. Because of the low tensile strength, they are not suitable for the needs of structural deformation, and water seepage still occurs.
Although polyurethane grouting treatment is an elastic material, it has high viscosity, limited groutability, and low strength. After construction, there are many reworks, and it is easy to leak water again after a period of time.

Method used

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  • Waterproof structure repaired by epr deformation joints and its construction method
  • Waterproof structure repaired by epr deformation joints and its construction method
  • Waterproof structure repaired by epr deformation joints and its construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Such as figure 1 , 2 Shown, a kind of EPR deformation seam repair water-stop structure, described deformation joint 11 is formed between two concrete structure layers 12, and described water-stop structure comprises the water-stop retaining layer 21 that is made of early-strength cement, is located at the described The epoxy resin anti-seepage layer 22 between the two concrete structure layers 12, the sealing layer 24 made of early-strength cement and the epoxy resin filling layer 25 poured in the deformation joint; the water-stop retaining layer 21 is set On the rear wall of the deformation seam 11, a sealing layer 24 is arranged on the front wall of the deformation seam 11, and the deformation seam is filled with a hemp silk layer, and a grouting pipe 241 is injected on the sealing layer 24, and on the grouting pipe A grouting port and an exhaust port for removing gas are also provided on the sealing layer.

Embodiment 2

[0042] Due to the failure of the original water stop, the deformation joints of the underground garage in a certain community urgently needed to be repaired:

[0043] Design requirements: EPR deformation joint repair and water-stop technology is used to repair deformation joints to meet the normal use of deformation joints in underground garages.

[0044] Specific implementation steps:

[0045] (1) Drill holes on the leaking deformation joints until they are drilled through, install grouting ports, and inject early-strength cement slurry into the rear wall of the deformation joints to form a water-stop barrier. The injection rate is greater than 100kg per meter until the water leakage is blocked. Build the first waterproof barrier;

[0046] ⑵Look for the water leakage points of the concrete on both sides of the deformation joint, and repair it with a hydrophilic high-permeability epoxy resin to form an anti-seepage layer, which can stop water and reinforce it. The epoxy resin...

Embodiment 3

[0059] Leakage in deformation joints of a certain subway station urgently needs to be repaired

[0060] Design requirements: EPR deformation joint repair and water sealing technology is used to repair deformation joints to meet the needs of deformation joint water sealing and deformation.

[0061] Specific implementation:

[0062] ⑴Drill holes in the leaking deformation joints until they are drilled through, install the grouting port and inject early-strength cement slurry, the injection rate is greater than 100kg per meter, and the first waterproof barrier is established based on the standard of blocking the leak.

[0063] ⑵Find out whether there are construction defects in the concrete on both sides of the deformation joint, and use high-permeability epoxy resin to stop water and reinforce it.

[0064] ⑶ Slot out the polystyrene board at the deformation joint and fill it with hemp silk, then seal it with micro-expansion cement, and install the grouting port and air outlet. ...

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Abstract

The invention discloses an EPR deformation joint repair water stopping structure and a construction method thereof. A deformation joint is formed between two concrete structural layers. The water stopping structure comprises a water stopping barrier layer which is made of high-early-strength cement, an epoxy resin seepage-proof layer which is arranged between the two concrete structural layers, a sealing layer which is made of high-early-strength cement, and an epoxy resin filling layer which is poured into the deformation joint. The water stopping barrier layer is arranged on the rear wall of the deformation joint, and the sealing layer is arranged on the front wall of the deformation joint. The EPR deformation joint repair water stopping structure is simple in structure, convenient to construct, and lasting and stable in seepage-proof effect.

Description

technical field [0001] The invention belongs to the field of road construction, and in particular relates to an EPR deformation joint repair water-stop structure and a construction method thereof. Background technique [0002] With the further advancement of the urbanization process, the development space of underground engineering is more and more extensive, followed by the problem of waterproofing of underground engineering, which seriously affects the quality of engineering, and deformation joints are even more difficult for underground engineering to prevent leakage. Due to the continuous movement and change of deformation joints, and the influence of waterproof design theory, waterproof materials and construction technology, deformation joints are prone to water leakage, and plugging of deformation joints has always been the most troublesome problem. [0003] It is more common in actual construction. When dealing with leaking water, general construction units use water ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/16E01C11/02
Inventor 朱宏伟毛晨阳元文新汪明珠吴许杰夏航朱文君
Owner 宁波高新区百茂高分子材料有限公司