CN216041825U - Be used for fissured waterproof construction of concrete member - Google Patents
Be used for fissured waterproof construction of concrete member Download PDFInfo
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- CN216041825U CN216041825U CN202122235242.7U CN202122235242U CN216041825U CN 216041825 U CN216041825 U CN 216041825U CN 202122235242 U CN202122235242 U CN 202122235242U CN 216041825 U CN216041825 U CN 216041825U
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Abstract
The utility model relates to a waterproof structure for concrete member cracks, which is characterized by comprising a U-shaped groove formed in the position of the concrete member crack, and a slow-release waterproof layer, a quick-setting waterproof layer, a water stop layer and a protective layer which are sequentially paved in the U-shaped groove from bottom to top according to the construction sequence; the lower part of the slow-release waterproof layer is filled with a grouting layer in cracks and pores of the concrete member; the slow-release waterproof layer is a porous elastic material which is paved and filled above the grouting layer and is provided with an adsorption surface and a blocking surface, the adsorption surface of the slow-release waterproof layer faces the grouting layer, and the blocking surface faces the quick-setting waterproof layer. The utility model has scientific and reasonable structural design and convenient and quick construction, and effectively avoids leakage caused by secondary deformation.
Description
Technical Field
The utility model relates to the technical field of building waterproof structures, in particular to a waterproof structure for a concrete member crack.
Background
At present, the most widely used building material in civil engineering is concrete, and the concrete member can generate deformation and microcrack due to the internal and external stress and the continuous action of the environment during the construction and use processes, and cracks are generated when the structure and the member are seriously damaged, particularly, the underground structure is easy to contact with water in the external environment, so that the concrete member can generate water seepage or water leakage. At present, a grouting plugging method is conventionally adopted for plugging water leakage of a concrete member, and the grouting plugging method has the defect that after the plugging construction is finished, when a crack generates secondary deformation, a waterproof structure cannot block the water leakage caused by the secondary deformation, so that secondary leakage is caused.
Patent CN 111927505A discloses a subway tunnel fissured waterproof leaking stoppage construction method, including marking fissures leakage point, drill near apart from the fissure, install the nozzle in the drilling, use joint cement to trowel the surface crack, carry out the slip casting after closing the fissure 10min, use high-pressure equipment with slip casting pouring nozzle in, the slip casting pours into the crack department along drilling into, remove the nozzle after the slip casting resin pours into, use joint cement to trowel the breach of demolishment of nozzle, then use soap bubble water to carry out the gas leakage inspection, and carry out the mending-leakage to the leakage point. Patent CN 108930292 discloses a method for performing waterproofing treatment on a new and old concrete interface, which comprises the steps of cleaning the old concrete interface, chiseling the old concrete interface, installing a water-swelling water stop strip on the chiseled old concrete interface, arranging a grouting pipeline at the old concrete interface, building a template to pour new concrete, and pouring the grouting pipeline and the water stop strip into the new concrete; and after the new concrete is stabilized, filling materials are injected into the grouting pipeline, the template and the grouting guide pipe are removed, and waterproof sealing caulking joints are arranged at the upper ends of the new concrete and the old concrete, so that waterproof plugging is finally realized.
Above-mentioned patent takes place the secondary deformation at crack structure, and waterproof construction can't repair new crack and cause seepage once more.
Patent CN 209760314U discloses a seepage repair structure at the bottom of a basement elevator shaft, including: the grouting hole is arranged at the leakage position of a structural plate at the bottom of the elevator shaft of the basement and is suitable for injecting slurry into the leakage position through the grouting hole; the rigid coating is formed by coating a polymer waterproof mortar coating; the waterproof roll material layer is stuck on the rigid coating; the protective layer is arranged on the outer side of the waterproof roll material layer. This patent combines together through slip casting leaking stoppage and waterproof coil stock layer, constructs dual waterproof construction, though can solve the secondary seepage problem that arouses because of the open water series flow to a certain extent. But this technical scheme has the structure complicacy, and defects such as construction is not convenient.
Disclosure of Invention
The utility model aims to provide a waterproof structure for concrete member cracks, aiming at the defects of the prior art, the waterproof structure combines a slow release technology and grouting to realize the plugging of the concrete cracks and prevent the leakage caused by secondary deformation.
In order to solve the problems, the technical scheme adopted by the utility model is as follows:
a waterproof structure for concrete member cracks is characterized by comprising a U-shaped groove formed in the position of a concrete member crack, and a slow-release waterproof layer, a quick-setting waterproof layer, a water stop layer and a protective layer which are sequentially paved in the U-shaped groove from bottom to top according to the construction sequence;
the lower part of the slow-release waterproof layer is filled with a grouting layer in cracks and pores of the concrete member;
the slow-release waterproof layer is paved and filled above the grouting layer and has the function of storing grouting materials, and when concrete cracks deform again, the grouting materials can continuously act with the amount of the water seepage to fill the cracks, so that the effect of stopping leakage and preventing seepage for a plurality of times in a long-acting manner is achieved.
The slow-release waterproof layer is made of polyester or polyurethane porous elastic materials, one side of the slow-release waterproof layer is an adsorption surface, the other side of the slow-release waterproof layer is a blocking surface which is pasted with a low-density polyethylene geomembrane, the adsorption surface of the slow-release waterproof layer faces the grouting layer, and the blocking surface faces the quick-setting waterproof layer.
And grouting pipes are preset in the U-shaped grooves, and grouting materials are filled into main parts and capillary parts of cracks of the concrete member through the grouting pipes preset in the U-shaped grooves during construction under the pressure action of a grouting pump, so that a grouting layer is formed to achieve the effect of leaking stoppage and leakage prevention. And after grouting plugging, the grouting pipe is removed and filled with quick-setting waterproof layer materials.
The grouting material of the grouting layer is polyacrylate polymer material.
The rapid-hardening waterproof layer is positioned above the slow-release waterproof layer and is mainly used for rapidly plugging a concrete crack construction surface and fixing a preset grouting pipe, so that a grouting process is facilitated; the waterproof material is epoxy resin composite waterproof material and/or polyurethane resin composite waterproof material and/or acrylic resin composite waterproof material.
The water stopping layer is positioned above the quick-setting waterproof layer and mainly used for blocking a water path and realizing the effects of leaking stoppage and seepage prevention by the synergistic effect of the water stopping layer, the grouting layer, the slow-release waterproof layer and the quick-setting waterproof layer.
The waterproof layer is a rubber system water stop belt or a plastic system water stop belt.
The protective layer is formed by coating cement mortar above the waterproof layer, and the protective layer is mainly used for protecting the waterproof structure.
The waterproof structure for the concrete member cracks is scientific and reasonable in structure and convenient and fast to construct and operate, and the high-molecular flexible polymeric material of the grouting layer diffuses to the main part and the capillary part of the cracks under the action of pressure and reacts with water quickly, so that the cracks can be plugged quickly and effectively, and the concrete member is not damaged. The slow-release waterproof layer can store grouting materials, when concrete cracks deform again, the grouting materials can continuously act with the amount of the water seepage to fill the cracks, multiple-time leakage stopping and seepage preventing effects are achieved, and the slow-release waterproof layer is suitable for seepage stopping and leakage stopping of concrete members in various environments.
Drawings
FIG. 1 is a schematic view of a waterproof structure according to the present invention;
in the figure, 1. grouting layer; 2. a slow release waterproof layer; 3. a quick setting waterproof layer; 4. a water stopping layer; 5. a protective layer; 6. a grouting pipe; 7. a concrete member; 8. cracking; and 9, forming a U-shaped groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
A waterproof structure for concrete member cracks comprises a grouting layer 1, a slow-release waterproof layer 2, a quick-setting waterproof layer 3, a water stop layer 4, a protective layer 5 and a grouting pipe 6 preset for grouting. The grouting layer 1 is filled in the concrete crack, and the grouting material is purchased from a No. five BR 302-acrylic acid system for east rainbows for plugging; the slow-release waterproof layer 2 is positioned above the grouting layer 1, the slow-release waterproof layer is made of foam rubber with an adsorption surface and a barrier surface, and the barrier surface is a low-density polyethylene geomembrane; the quick-setting waterproof layer 3 is positioned above the slow-release waterproof layer 2, and is purchased from Niuyou brand leak stopping king + Gusu brand JS glue of Shanghai Niuyou worker and trade Limited company; the water stopping layer 4 is positioned above the quick-setting waterproof layer 3, and a rubber system water stopping belt is selected as the water stopping layer; the protective layer 5 is positioned above the waterproof layer 4 and is formed by coating cement mortar.
In the embodiment of the utility model, the construction method of the waterproof structure for the concrete member cracks comprises the following steps:
1. cleaning the slot:
and cleaning loose impurities in cracks of the concrete member, washing the water leakage part, and digging a U-shaped notch with the width multiplied by the depth = 5cm multiplied by 5cm at the position of the crack.
2. And (3) slow-release waterproof layer treatment:
and (3) paving the polyester system porous material into the cleaned U-shaped groove, wherein one surface with the adsorption performance faces to the crack, and the other surface is paved with a low-density polyethylene geomembrane as the surface with the barrier performance.
3. Treating a quick-setting waterproof layer:
and constructing the acrylic resin composite system waterproof material with the quick-setting characteristic into a U-shaped groove, and embedding a certain number of grouting pipes according to the length of the U-shaped groove.
4. Grouting treatment:
after the quick-setting waterproof layer reaches the curing strength, grouting materials are injected into the concrete gaps from the grouting pipes by using a grouting pump until the gaps are filled, so that the deep omnibearing waterproof effect is achieved.
5. Pipe drawing treatment:
and after the grouting treatment is finished, taking out the grouting pipe and filling the grouting pipe with a quick-setting waterproof material.
6. And (3) leakage test:
and (5) detecting the waterproof condition of the gap after the grouting layer reaches the curing strength, and repeating the step 1-5 if a leakage point exists.
7. And (3) protective layer treatment:
and after the waterproof structure is detected and the plugging is confirmed to be effective, carrying out surface filling treatment on the crack construction surface by using cement mortar, and finishing the whole preparation process.
Compared with the prior art, the utility model has the following beneficial effects:
1. the high-molecular flexible polymer material of the grouting layer diffuses to the main part and the capillary part of the gap under the action of pressure, reacts with water quickly, can quickly and effectively block the gap, and has no damage effect on a concrete member.
2. The slow-release waterproof layer can store grouting materials, when concrete cracks deform again, the grouting materials can continuously act with the amount of the water seepage to fill the cracks, multiple-time leakage stopping and seepage preventing effects are achieved, and the slow-release waterproof layer is suitable for seepage stopping and leakage stopping of concrete members in various environments.
In summary, although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the utility model.
Claims (8)
1. A waterproof structure for concrete member cracks is characterized by comprising a U-shaped groove formed in the position of a concrete member crack, and a slow-release waterproof layer, a quick-setting waterproof layer, a water stop layer and a protective layer which are sequentially paved in the U-shaped groove from bottom to top according to the construction sequence;
the lower part of the slow-release waterproof layer is filled with a grouting layer in cracks and pores of the concrete member;
the slow-release waterproof layer is a porous elastic material which is paved and filled above the grouting layer and is provided with an adsorption surface and a blocking surface, the adsorption surface of the slow-release waterproof layer faces the grouting layer, and the blocking surface faces the quick-setting waterproof layer.
2. A waterproof structure for a concrete member crack according to claim 1,
the porous elastic material is a polyester or polyurethane system porous material.
3. A waterproof structure for a concrete member crack according to claim 1,
the barrier surface of the slow-release waterproof layer is made of a low-density polyethylene geomembrane.
4. A waterproof structure for a concrete member crack according to claim 1,
and a grouting pipe is preset in the U-shaped groove, and the grouting pipe is removed after grouting is finished and is filled with a quick-setting waterproof material.
5. A waterproof structure for a concrete member crack according to claim 1,
the grouting material of the grouting layer is polyacrylate polymer material.
6. A waterproof structure for a concrete member crack according to claim 1,
the quick-setting waterproof layer is positioned above the slow-release waterproof layer, and the quick-setting waterproof material is an epoxy resin composite waterproof material and/or a polyurethane resin composite waterproof material and/or an acrylic resin composite waterproof material.
7. A waterproof structure for a concrete member crack according to claim 1,
the water stopping layer is a rubber system water stopping belt or a plastic system water stopping belt which is positioned above the quick-setting waterproof layer.
8. A waterproof structure for a concrete member crack according to claim 1,
the protective layer is formed by coating cement mortar above the water stop layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122235242.7U CN216041825U (en) | 2021-09-15 | 2021-09-15 | Be used for fissured waterproof construction of concrete member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122235242.7U CN216041825U (en) | 2021-09-15 | 2021-09-15 | Be used for fissured waterproof construction of concrete member |
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| Publication Number | Publication Date |
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| CN216041825U true CN216041825U (en) | 2022-03-15 |
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| CN202122235242.7U Active CN216041825U (en) | 2021-09-15 | 2021-09-15 | Be used for fissured waterproof construction of concrete member |
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