Basement waterproof construction joint structure and test device

By using a corrugated structure and applying an active silica self-healing material at the construction joint, the problem of easy leakage in traditional construction joints is solved, achieving better waterproofing and impermeability, and extending the service life of the building.

CN224063523UActive Publication Date: 2026-03-31中交四航局第六工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Traditional construction joint waterproofing designs are prone to creating gaps at the junction, leading to water leakage in the building and affecting the quality and service life of the waterproofing.

Method used

A corrugated construction joint structure is adopted and an active silica self-healing waterproof material is applied to form an integral dense structure, which increases the seepage path and blocks the seepage channel.

Benefits of technology

It improved the waterproofness and airtightness of the building, extended its service life, and verified the anti-permeability effect through testing equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a basement waterproof construction joint structure and a test device, the basement waterproof construction joint structure comprises a concrete layer 1, a concrete layer 2 and a waterproof coating layer, the concrete layer 1 and the concrete layer 2 are poured successively and form a construction joint, the waterproof coating layer is brushed in the construction joint, the construction joint is a zigzag structure, and the waterproof coating layer is coated on the waterproof coating layer. A long water seepage path is formed by the corrugated structure, the contact area with the waterproof coating layer is increased through the grooves, the cavities and the structures similar to capillary vessels formed in the water seepage path, and the water seepage prevention effect is improved; the test device comprises a test block and a test box, a sealing ring is arranged on the test block, the test block is placed in the test box, the sealing ring is attached to the interior of the test box, a connector is formed in the bottom of the test box, and in the test process of the test block, the structure of the test device can prevent the test block from moving upwards under the action of water pressure, and test conditions are guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of construction joint technology, and in particular to a structure and testing device for waterproof construction joints in basements. Background Technology

[0002] During building construction, various "joints" need to be left in the structure or other construction layers for various reasons. These joints are weak points in waterproofing construction and are prone to water leakage in the later stages of building construction. Traditional construction joint waterproofing designs are outdated. Commonly used waterproofing facilities include waterstops and expansion rubber strips, but they do not meet the design requirements. For example, metal waterstops may be misaligned or rubber waterstops may be bent. Gaps are easily formed at the junction, creating water flow paths, which directly affects the waterproofing quality and service life of the building. Utility Model Content

[0003] One of the objectives of this utility model is, at least, to address the problems existing in the prior art by providing a basement waterproof construction joint structure and testing device. This device can form a corrugated construction joint structure between successively poured concrete layers and apply an active silica self-healing waterproof material to make it a whole, thereby preventing leakage, improving the density and waterproofing of the concrete in the later stages, extending the service life of the building, and verifying the anti-permeability effect of the basement waterproof construction joint structure through the testing device.

[0004] To achieve the above objectives, the technical solution adopted by this utility model includes the following aspects.

[0005] A construction joint structure for waterproofing a basement includes a first concrete layer, a second concrete layer, and a waterproof coating layer. The first concrete layer and the second concrete layer are poured sequentially to form a construction joint. The construction joint has a corrugated structure, and the waterproof coating layer is applied inside the construction joint.

[0006] Preferably, the waterproof coating layer is made of an active silica self-healing waterproof material.

[0007] Preferably, one side surface of the construction joint is formed by roughening the surface of the corrugated structure after cutting the surface of the pre-poured concrete layer into a corrugated structure.

[0008] Preferably, one side surface of the construction joint is roughened directly on the surface of the pre-poured concrete layer to form a corrugated structure.

[0009] A test device for waterproof construction joints in basements includes a test block and a test chamber. The test block is equipped with a sealing ring, and the test block is placed inside the test chamber. The sealing ring is in contact with the inner wall of the test chamber, and the bottom of the test chamber is provided with an interface.

[0010] Preferably, the test block has a cuboid structure and includes test block one, test block two, and a waterproof coating layer. The material of test block one is the same as that of concrete layer one, the material of test block two is the same as that of concrete layer two, and the waterproof coating layer is disposed between test block one and test block two.

[0011] Preferably, the surface of the test block is provided with an annular groove, the annular groove is set perpendicular to the waterproof coating layer, the sealing ring is set in the annular groove, and the thickness of the sealing ring is greater than the height of the annular groove.

[0012] Preferably, the test chamber has a cuboid structure and includes a chamber body and a lid; one side of the chamber body is connected to one side of the corresponding lid by a latch, and the other side of the chamber body is hinged to the other side of the corresponding lid by a connector.

[0013] Preferably, the cross-section of the box is rectangular, and the wall thickness of the box gradually increases from top to bottom.

[0014] Preferably, the interface is located on any side of the chamber, and the interface is used to connect an external water pressure device to flush and pressurize the test chamber.

[0015] In summary, by adopting the above technical solution, this utility model has at least the following beneficial effects:

[0016] The corrugated construction joint structure not only creates a longer seepage path, but also forms grooves, cavities, and capillary-like structures along the seepage path, thereby increasing the contact area with the waterproof coating layer and improving the waterproofing effect. At the same time, the waterproof coating layer uses an active silica self-healing waterproof material to block the seepage channels, making the waterproof layer and the concrete surface form a complete system.

[0017] During the test, the structure of the test device can prevent the test block from moving upward under water pressure, thus ensuring the test conditions. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the corrugated chiseling structure of a waterproof construction joint, an exemplary embodiment of this utility model.

[0019] Figure 2 This is a schematic diagram of the ordinary roughening structure of existing waterproof construction joints.

[0020] Figure 3 This is a schematic diagram of the microscopic principle of ordinary roughening of existing waterproof construction joints.

[0021] Figure 4 This is a schematic diagram of the microscopic principle of the corrugated chiseling of a waterproof construction joint, an exemplary embodiment of this utility model.

[0022] Figure 5This is a schematic diagram of the structure of a waterproof construction joint testing device according to an exemplary embodiment of this utility model.

[0023] The markings in the diagram are: 1-Concrete layer one, 2-Concrete layer two, 3-Waterproof coating layer, 4-Interface, 5-Crystal, 6-Lock, 7-Sealing ring, 8-Test block, 81-Test block one, 82-Test block two, 9-Test chamber, 10-Box body, 101-Bottom plate, 102-Side plate one, 11-Box cover, 111-Top plate, 112-Side plate three, 12-Connector. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, so that the purpose, technical solution and advantages of the present invention will be clearer. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Example 1

[0025] Figure 1 The present invention illustrates a basement waterproof construction joint structure, including a first concrete layer 1, a second concrete layer 2, and a waterproof coating layer 3. The first concrete layer 1 and the second concrete layer 2 are poured sequentially to form a construction joint. The construction joint has a corrugated structure, and the waterproof coating layer 3 is applied inside the construction joint.

[0026] The waterproof coating layer 3 preferably uses an active silica self-healing waterproof material. This active silica self-healing waterproof material is a penetrating and repairing waterproof and protective material for concrete surfaces. Upon contact with water, it penetrates into the concrete and continuously reacts with the cement, catalyzing the cement and other chemical substances in the concrete, or penetrating the concrete using water as a carrier to produce water-insoluble crystals 5. These crystals fill and seal gaps in the concrete (including pores, capillaries, and microcracks), thereby preventing water and other liquids from penetrating into the concrete structure from different directions, blocking seepage channels, and achieving waterproofing and moisture-proofing. Furthermore, the active silica self-healing waterproof material has multiple seepage resistance and self-repairing properties, and possesses extremely strong compressive strength, allowing the waterproof layer and the concrete surface to form a complete system that will not separate. Simultaneously, it fully absorbs moisture from the concrete surface to participate in its crystallization reaction, preventing hollowing.

[0027] The corrugated construction joint structure not only creates a longer seepage path but also forms grooves, cavities, and capillary-like structures along this path, increasing the contact area with the waterproof coating layer 3. This allows the waterproof coating layer 3 to penetrate the concrete surface, improving the waterproofing effect. Furthermore, one side of the construction joint can be formed by cutting a corrugated structure into the surface of the previously poured concrete layer (either surface one or surface two) and then roughening the surface of the corrugated structure; alternatively, the corrugated structure can be formed directly by roughening the surface of the previously poured concrete layer, creating a denser microporous structure. After applying the waterproof coating, the coating penetrates and fills the micropores, thereby improving the bonding strength between the waterproof coating layer and the construction joint, further enhancing the waterproofing effect of the construction joint. Example 2

[0028] Figure 5 The present invention illustrates a basement waterproofing construction joint testing device according to an exemplary embodiment, comprising a test block 8 and a test chamber 9. A sealing ring 7 is provided on the test block 8. The test block 8 is placed inside the test chamber 9, and the sealing ring 7 is in contact with the inner wall of the test chamber 9. An interface 4 is provided at the bottom of the test chamber 9.

[0029] The test block 8 has a cuboid structure and includes test block 1 81, test block 2 82, and a waterproof coating layer 3. The material of test block 1 81 is the same as that of concrete layer 1, and the material of test block 2 82 is the same as that of concrete layer 2. The waterproof coating layer 3 is placed between test block 1 81 and test block 2 82. An annular groove is cut on the side of the test block 8 along a direction perpendicular to the waterproof coating layer 3. The sealing ring 7 is placed in the annular groove. The thickness of the sealing ring 7 is greater than the height of the annular groove. The sealing ring 7 is used to ensure an annular seal between the test block 8 and the test chamber 9.

[0030] The test chamber 9 has a rectangular structure, and its dimensions are adapted to the dimensions of the test block 8. The height of the test chamber 9 is greater than the height of the test block 8. The test chamber 9 includes a chamber body 10 and a lid 11. During the test of the test block 8, the test block 8 can be prevented from moving upward under water pressure by the combined action of the chamber body 10 and the lid 11, thus ensuring the test conditions. One side of the chamber body 10 is connected to one side of the corresponding lid 11 by a latch 6, and the other side of the chamber body 10 is hinged to the other side of the corresponding lid 11 by a connector 12.

[0031] The cross-section of the box 10 is rectangular, and the wall thickness of the box 10 from top to bottom is ( Figure 5 The thickness gradually increases from top to bottom. The box body 10 includes a bottom plate 101, side plate one 102, and side plate two. The bottom plate 101 is thicker at the front and back. Figure 5Side plates 2 (not shown in the figure for ease of representation of the test block structure) are respectively provided at both ends in the front and rear directions. Side plates 2 are perpendicularly connected to the base plate 101. The side plates 2 and the base plate 101 are U-shaped as a whole. The left and right sides of the base plate 101 are U-shaped. Figure 5 Side plates 102 are respectively provided at both ends (left and right directions). Side plates 102 are perpendicularly connected to the base plate 101. Side plates 102 are also perpendicularly connected to side plates 2. The lengths of side plates 102 and side plates 2 are equal or unequal. The inner distance between the two side plates 102 is from top to bottom ( Figure 5 The distance between the two side plates decreases from top to bottom and the minimum spacing is not less than the width of test block 8. The inner spacing between the two side plates decreases from top to bottom. Figure 5 The distance between the test blocks decreases in the vertical direction and the minimum distance between them is not less than the length of the test block 8. The purpose is to press the test block 8 into the test chamber 9 and ensure that the sealing ring 7 on the test block 8 is in full contact with the test chamber 9. The interface 4 is set on any side of the chamber 10 and is used to connect an external water pressure device to flush and pressurize the test chamber 9.

[0032] The box cover 11 includes a top plate 111, a third side plate 112, and a fourth side plate. The top plate 111 has a front and rear section. Figure 5 Side plates four (not shown in the figure) are respectively provided at both ends of the front and rear direction. The side plates four are perpendicularly connected to the top plate 111. The side plates four and the top plate 111 are U-shaped as a whole. The left and right sides of the top plate 111 are... Figure 5 Side plates 112 are provided at both ends (left and right directions). Side plates 112 are perpendicularly connected to the top plate 111 and also perpendicularly connected to side plate 4. The length of side plate 112 on the left side of the top plate 111 is not greater than the length of side plate 112 on the right side. One end of side plate 112 on the left side of the top plate 111 is connected to one end of the corresponding side plate 102 by a latch 6. One end of side plate 112 on the right side of the top plate 111 is hinged to one end of the corresponding side plate 102 by a connector 12. In application, the cover 11 may also include only the top plate 111 and side plates 112, with the two parallel side plates 112 perpendicularly connected to the left and right ends of the top plate 111 respectively.

[0033] The above description is merely a detailed illustration of specific embodiments of this utility model, and not a limitation thereof. Various substitutions, modifications, and improvements made by those skilled in the art without departing from the principles and scope of this utility model should be included within the protection scope of this utility model.

Claims

1. A basement waterproofing construction joint structure, characterized by, The utility model relates to a construction joint waterproofing method and a test box, and belongs to the field of construction joint waterproofing technology. The construction joint is formed by cutting the surface of the first cast concrete layer into a corrugated structure and then roughening the corrugated structure, or by directly roughening the surface of the first cast concrete layer to form a corrugated structure.

2. The basement waterproof construction joint structure according to claim 1, characterized in that, The waterproof coating layer (3) is made of active siliceous self-repairing waterproof material.

3. A basement waterproofing construction joint testing device, characterized by, The utility model relates to a construction joint waterproofing method and a test box, and belongs to the field of construction joint waterproofing technology. The test block (8) is a cuboid structure, and the test block (8) comprises a test block one (81), a test block two (82) and a waterproof coating layer (3).

4. The basement waterproof construction joint test device according to claim 3, characterized in that, The surface of the test block (8) is provided with an annular groove, and the annular groove is perpendicular to the waterproof coating layer (3).

5. The basement waterproof construction joint test device according to claim 3, characterized in that, The test box (9) is a cuboid structure, and the test box (9) comprises a box body (10) and a box cover (11).

6. The basement waterproof construction joint test device according to claim 3, characterized in that, The cross section of the box body (10) is rectangular, and the wall thickness of the box body (10) gradually increases from top to bottom.

7. A basement waterproof construction joint test device according to claim 6, characterized in that, The interface (4) is arranged on any side surface of the box body (10), and the interface (4) is used for connecting an external water pressure device to water flush and pressurize the test box (9).

8. A basement waterproofing construction joint test device according to any one of claims 3 to 7, characterized in that ​