Dividing joint plastering construction structure

By using a combination of elastic rubber strips and rigid plastic strips in the expansion joints, applying a waterproof layer, and combining it with concrete plastering, the problem of plastic strips failing to waterproof the expansion joints in existing technologies is solved. This achieves effective waterproofing for structural beams and is suitable for sealing expansion joints in building construction.

CN223838323UActive Publication Date: 2026-01-27CHINA WATER CONSERVANCY & HYDROPOWER NO 9 ENG BUREAU CO LTD
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Patent Information

Application Number
CN202423195990.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2026-01-27
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

In existing technologies, sealing the joints with cement slurry using plastic strips is not effective in preventing water from seeping into the interior plaster layer from the exterior decorative wall layer.

Method used

A combination of elastic rubber strips and rigid plastic strips is used. The elastic rubber strips are coated with a waterproof layer that extends onto the structural beams, while the rigid plastic strips are tightly attached to the elastic rubber strips. By utilizing the elasticity of the elastic rubber strips and the waterproof performance of the waterproof layer, combined with concrete plastering, an effective waterproof structure is formed.

Benefits of technology

It effectively waterproofs the pouring joints of structural beams, preventing rainwater from seeping into the interior wall plaster layer and improving the waterproof performance of the decorative exterior wall, especially maintaining the integrity of the waterproof layer when the exterior wall expands and contracts with temperature.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a dividing joint plastering construction structure which comprises a structural beam with a pouring joint. A decorative outer wall layer is arranged outside the structural beam, and dividing joints are arranged on the decorative outer wall layer. The decorative outer wall layer comprises a decorative outer wall A and a decorative outer wall B, the decorative outer wall A is attached to the exterior of the structural beam, the decorative outer wall B is attached to the exterior of the decorative outer wall B, and the decorative outer wall A is located between the structural beam and the decorative outer wall B; the dividing joints are located in the decorative outer wall A and the decorative outer wall B and correspond to the pouring joints. An elastic rubber strip is installed on the dividing joint located on the decorative outer wall A, the elastic rubber strip is coated with a waterproof layer, and the waterproof layer extends to the structural beam from the elastic rubber strip. The waterproof layer extends to the structural beam from the elastic rubber strip, so that a waterproof effect on a pouring seam of the structural beam is achieved, rainwater of a decorative outer wall layer is prevented from permeating into an inner wall plaster layer, and the problem that the waterproof effect cannot be achieved due to the fact that a dividing seam is blocked by a plastic strip through cement paste is solved.
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Description

Technical Field

[0001] This utility model relates to a construction structure for plastering joints, belonging to the field of building construction technology. Background Technology

[0002] During the construction of exterior decorative walls, to cope with thermal expansion and contraction and for aesthetic purposes, expansion joints will appear in the decorative exterior walls. These expansion joints form independent areas, and multiple independent areas constitute the overall decorative exterior wall. To ensure the waterproofness of the decorative exterior wall, the expansion joints need to be sealed.

[0003] The existing technology for sealing expansion joints (see Chinese Patent Publication No. CN113882551A) uses cement slurry to fix plastic strips to the base layer to seal the expansion joints. However, when the expansion joints correspond to the pouring joints of the structural beams, the plastic strips cannot achieve waterproofing by sealing the expansion joints with cement slurry. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a construction structure for plastering joints.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides a construction structure for plastering joints, including:

[0007] Structural beams, structural beams with casting joints;

[0008] The structural beam has a decorative exterior wall layer with dividing joints that correspond to the pouring joints.

[0009] The inner surface of the structural beam has an inner wall plaster layer.

[0010] The decorative exterior wall layer includes decorative exterior wall A and decorative exterior wall B. Decorative exterior wall A is attached to the outside of the structural beam, and decorative exterior wall B is attached to the outside of decorative exterior wall B, so that decorative exterior wall A is located between the structural beam and decorative exterior wall B; the dividing joint is located in decorative exterior wall A and decorative exterior wall B and corresponds to the pouring joint.

[0011] An elastic rubber strip is installed at the partition joint of the decorative exterior wall A. The elastic rubber strip is coated with a waterproof layer, which extends from the elastic rubber strip to the structural beam.

[0012] The cross-section of the elastic rubber strip is trapezoidal, and the large surface of the trapezoidal elastic rubber strip is in close contact with the pouring joint of the structural beam.

[0013] The dividing joints of the decorative exterior wall B are fitted with rigid plastic strips, which are in close contact with the small side of the trapezoidal elastic rubber strip.

[0014] Both decorative exterior walls A and B are constructed using concrete plastering.

[0015] The beneficial effects of this utility model are as follows: the waterproof layer extends from the elastic rubber strip to the structural beam, thereby achieving waterproofing of the pouring joints of the structural beam, preventing rainwater from seeping into the interior wall plaster layer, and solving the problem that plastic strips cannot achieve waterproofing when sealed with cement slurry at the joints. Attached Figure Description

[0016] Figure 1 This is a cross-sectional schematic diagram of the present invention;

[0017] In the diagram: 1-Structural beam; 11-Interior wall plaster layer; 12-Pouring joint; 2-Decorative exterior wall layer; 21-Decorative exterior wall A; 22-Decorative exterior wall B; 3-Elastic rubber strip; 4-Waterproof layer; 5-Plastic strip. Detailed Implementation

[0018] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0019] like Figure 1 As shown.

[0020] This application discloses a construction structure for plastering joints, comprising:

[0021] The structural beam 1 has an inner wall plaster layer 11 on its inner surface, and there is a pouring joint 12 on the structural beam 1 for connection and pouring.

[0022] The structural beam 1 is surrounded by a decorative exterior wall layer 2 with dividing joints. The decorative exterior wall layer 2 includes decorative exterior wall A21 and decorative exterior wall B22. Decorative exterior wall A21 is attached to the outside of the structural beam 1, and decorative exterior wall B22 is attached to the outside of decorative exterior wall B22, so that decorative exterior wall A21 is located between the structural beam 1 and decorative exterior wall B22. The dividing joints are located in decorative exterior wall A21 and decorative exterior wall B22 and correspond to the pouring joint 12.

[0023] Elastic rubber strips 3 are installed at the partition joints of the decorative exterior wall A21. The elastic rubber strips 3 are coated with a waterproof layer 4 made of JS waterproof coating. The waterproof layer 4 extends from the elastic rubber strips 3 to the structural beam 1. The cross-section of the elastic rubber strips 3 is trapezoidal, and the large surface of the trapezoidal elastic rubber strips 3 is in close contact with the pouring joint 12 of the structural beam 1.

[0024] A rigid plastic strip 5 is installed at the joint of the decorative exterior wall B22, and the plastic strip 5 is in close contact with the small side of the trapezoidal elastic rubber strip 3. Both the decorative exterior walls A21 and B22 are constructed using concrete plastering.

[0025] The waterproof layer 4 extends from the elastic rubber strip 3 to the structural beam 1, thus waterproofing the pouring joint 12 of the structural beam 1 and preventing rainwater from the decorative exterior wall layer 2 from seeping into the interior wall plaster layer 11. This solves the problem that the plastic strip cannot provide waterproofing when it is sealed with cement slurry to seal the joints. When the decorative exterior wall layer 2 is squeezed against the elastic rubber strip 3, causing the waterproof layer 4 to be damaged, the elastic rubber strip 3 elastically squeezes and tightly contacts the structural beam 1 to seal the pouring joint 12. When the decorative exterior wall layer 2 generates stress due to thermal expansion, the rigid plastic strip 5 first bears the compressive force of the decorative exterior wall layer 2 squeezing against the elastic rubber strip 3, making the waterproof layer 4 less likely to be damaged.

Claims

1. A construction structure for plastering joints, characterized in that, include: Structural beam (1), structural beam (1) has a pouring joint (12); The structural beam (1) has a decorative exterior wall layer (2) on the outside, and there are partition joints on the decorative exterior wall layer (2), which correspond to the pouring joints (12); The decorative exterior wall layer (2) includes decorative exterior wall A (21) and decorative exterior wall B (22). Decorative exterior wall A (21) is attached to the outside of the structural beam (1), and decorative exterior wall B (22) is attached to the outside of the decorative exterior wall B (22), so that decorative exterior wall A (21) is located between the structural beam (1) and decorative exterior wall B (22); the dividing joint is located in decorative exterior wall A (21) and decorative exterior wall B (22) and corresponds to the pouring joint (12); Elastic rubber strips (3) are installed at the partition joints of the decorative exterior wall A (21). The elastic rubber strips (3) are coated with a waterproof layer (4), which extends from the elastic rubber strips (3) to the structural beam (1). A rigid plastic strip (5) is installed at the partition joint of the decorative exterior wall B (22), and the plastic strip (5) is in close contact with the small face of the trapezoidal elastic rubber strip (3).

2. The plastering construction structure for dividing joints as described in claim 1, characterized in that: The inner surface of the structural beam (1) has an inner wall plaster layer (11).

3. The plastering construction structure for dividing joints as described in claim 1, characterized in that: The cross-section of the elastic rubber strip (3) is trapezoidal, and the large surface of the trapezoidal elastic rubber strip (3) is closely attached to the pouring joint (12) of the structural beam (1).

4. The plastering construction structure for dividing joints as described in claim 1, characterized in that: Both decorative exterior walls A (21) and decorative exterior walls B (22) are constructed using concrete plastering.

Citation Information

Patent Citations

  • Fabricated integrated outer wall splicing seam treatment method

    CN113882551A