Method of waterproofing a termination

By pre-embedding and anchoring prefabricated groove-shaped waterproof termination boxes, the leakage problem caused by the loose termination of waterproof membrane was solved, achieving an effective water-blocking effect at the waterproof termination and reducing maintenance costs.

CN117188627BActive Publication Date: 2026-06-05CHINA MCC22 GROUP CORP LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA MCC22 GROUP CORP LTD
Filing Date
2023-09-18
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The existing waterproof membrane sealing strips do not make a firm contact with the waterproof membrane, resulting in leakage problems at the waterproof termination points.

Method used

Precast trough-shaped waterproof termination boxes are used. They are pre-embedded during the steel bar binding process and anchored after concrete pouring. Combined with polyethylene waterproof membrane and pressure strips for fixation, they form an effective water curtain to prevent leakage.

Benefits of technology

Ensure that there is no leakage at the waterproof joint, reduce subsequent maintenance costs, and improve the waterproof effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117188627B_ABST
    Figure CN117188627B_ABST
Patent Text Reader

Abstract

The application relates to the technical field of waterproofing of building engineering, in particular to a waterproof end making method. A waterproof end box is pre-buried, pre-buried in the process of steel bar binding, then concrete is poured, effective combination with the concrete wall structure is ensured, the waterproof end box is cut off before waterproof construction after the completion of the construction of the concrete structure, polyethylene waterproof roll material is used as a water screen, and the waterproof material of the wall body or the roof is used in the later period, so that the follow-up maintenance cost is reduced. The waterproof end in the water collecting box provides guarantee for waterproof end leakage, and the leakage at the waterproof end is completely eliminated.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of waterproofing technology in building engineering, specifically a method for waterproofing termination. Background Technology

[0002] Waterproof membranes are mainly used in building roofs, walls, highways, tunnels, etc. They are flexible building materials that resist external rainwater and underground seepage. They are the first line of defense for waterproofing in the entire building project and play a vital role in ensuring project quality. In building waterproofing projects, after the waterproof membrane is laid, the edges of the waterproof membrane need to be fixed with sealing strips. However, the sealing effect of existing waterproof membrane sealing strips is poor, and the sealing strips do not make a firm contact with the waterproof membrane, which can still lead to leakage at the waterproof termination later. Summary of the Invention

[0003] The present invention aims to solve the above problems and thus provide a waterproof finishing method that ensures the finishing effect.

[0004] The technical solution adopted by the present invention to solve the aforementioned problem is as follows:

[0005] A method for creating a waterproof finish includes the following steps:

[0006] S1: A prefabricated trough-shaped waterproof termination box. One side of the waterproof termination box is the top surface, and the other side is the bottom surface. Polyethylene waterproof membrane is bonded to the inside corner of the top of the waterproof termination box, and the bottom of the polyethylene waterproof membrane hangs down.

[0007] S2: Galvanized iron wires are installed at horizontal intervals on the top and bottom of the back side of the waterproof junction box, and a row of anchor nails is installed on the bottom surface of the waterproof junction box.

[0008] S3: Install the waterproof termination box during the rebar tying process. Place the waterproof termination box within the horizontal rebar spacing with the opening facing outwards, and tie the galvanized iron wire on the back of the waterproof termination box to the rebar.

[0009] S4: After the concrete wall is poured and the facade is constructed, the bottom anchors are anchored to the concrete wall. The outer side of the waterproof termination box is cut off to be flush with the facade. The waterproof membrane to be terminated is fixed to the facade of the waterproof termination box with a pressure strip.

[0010] S5: Fill the waterproof termination box with mortar until it is flush with the concrete wall surface. The bottom of the polyethylene waterproof membrane extends naturally downwards to the concrete wall surface. Finally, the decorative surface layer is applied to cover the polyethylene waterproof membrane.

[0011] The present invention, which adopts the above technical solution, has the following prominent features compared with the prior art:

[0012] Pre-embed waterproof termination boxes during the rebar tying process, followed by concrete pouring. This ensures effective bonding with the concrete wall structure. After the concrete structure is completed and before waterproofing, the termination boxes are removed. Polyethylene waterproof membrane acts as a water curtain, reducing subsequent maintenance costs for wall or roof waterproofing materials. The termination boxes ensure waterproofing at the joints, completely preventing leaks.

[0013] As a preferred embodiment, a further technical solution of the present invention is:

[0014] The waterproof junction box is made of rigid, weather-resistant PVC material.

[0015] The top and bottom surfaces of the waterproof junction box in S3 protrude 5-10 mm from the template.

[0016] The spacing between adjacent galvanized iron wires is 500mm.

[0017] The top and bottom surfaces of the waterproof junction box are divided into an inner inclined section and an outer horizontal section, with the inclined section sloping downwards from the inside to the outside. Attached Figure Description

[0018] Figure 1 This is a side cross-sectional view of an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the front cross-sectional structure of an embodiment of the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the waterproof junction box according to an embodiment of the present invention;

[0021] The following are marked in the diagram: 1. Waterproof termination box; 2. Polyethylene waterproof membrane; 3. Galvanized iron wire; 4. Anchor nail; 5. Concrete wall. Implementation

[0022] The present invention will be further described below with reference to embodiments, which are intended only to provide a better understanding of the invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0023] A method for creating a waterproof finish includes the following steps:

[0024] S1: A precast trough-shaped waterproof termination box 1. One side of the waterproof termination box 1 is the top surface, and the other side is the bottom surface. Polyethylene waterproof membrane 2 is bonded to the inside corner of the top of the waterproof termination box 1. Other waterproof materials can be used to replace the polyethylene waterproof membrane 2. The bottom of the polyethylene waterproof membrane 2 hangs down. The dimensions of the waterproof termination box 1 are 100 mm (height) × 30 mm (width) × 2000 mm (length). The length is interlocked according to the actual length of the concrete wall 5.

[0025] S2: Galvanized iron wires 3 are horizontally spaced at the top and bottom of the back side of the waterproof termination box 1. The galvanized iron wires 3 are directly tied to the reinforcing bars. A row of anchor nails 4 is provided on the bottom surface of the waterproof termination box 1. The anchor nails 4 are located on the inner side of the bottom surface and are anchored to the concrete wall 5 to fix the waterproof termination box 1.

[0026] S3: During the rebar tying process, the waterproof termination box 1 is installed. The waterproof termination box 1 is placed within the horizontal rebar spacing with its opening facing outwards. The galvanized iron wire 3 on the back side of the waterproof termination box 1 is tied to the rebar.

[0027] S4: After the concrete wall 5 is poured and the facade construction is completed, the bottom anchor nail 4 is anchored to the concrete wall 5. The outer side of the waterproof termination box 1 is cut off to be flush with the facade. The waterproof membrane to be terminated is fixed to the facade of the waterproof termination box 1 by the pressure strip.

[0028] S5: The waterproof termination box 1 is filled with mortar until it is flush with the concrete wall 5. The bottom of the polyethylene waterproof membrane 2 extends naturally downward to the concrete wall 5. Finally, the decorative surface layer is applied to cover the polyethylene waterproof membrane 2.

[0029] Waterproof junction box 1 is made of rigid and weather-resistant PVC material.

[0030] The top and bottom surfaces of the waterproof junction box 1 in S3 protrude 5-10 mm from the template.

[0031] The spacing between adjacent galvanized iron wires 3 is 500mm.

[0032] The top and bottom surfaces of the waterproof junction box 1 are divided into an inner inclined section and an outer horizontal section. The inclined section slopes downward from the inside to the outside, which can effectively prevent water from seeping inward.

[0033] Pre-embed the waterproof termination box 1 during the rebar tying process, followed by concrete pouring. This ensures effective bonding with the concrete wall structure. After the concrete structure construction is completed and before waterproofing, remove the waterproof termination box 1. Use polyethylene waterproof membrane 2 as a water curtain. This reduces subsequent maintenance costs by preventing leaks at the waterproof termination point. The termination box provides protection against water seepage, completely eliminating leakage at the waterproof termination point.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A method for waterproof finishing, characterized in that: Includes the following steps: S1: Precast trough-shaped waterproof termination box, with one side of the waterproof termination box as the top surface and the other side of the waterproof termination box as the bottom surface. Polyethylene waterproof membrane is bonded to the inside corner of the top of the waterproof termination box, and the bottom of the polyethylene waterproof membrane hangs down. S2: Galvanized iron wires are horizontally spaced at the top and bottom of the back side of the waterproof junction box, and a row of anchor nails is provided on the bottom surface of the waterproof junction box; S3: Install the waterproof termination box during the rebar tying process. Place the waterproof termination box within the horizontal rebar spacing with the opening facing outwards, and tie the galvanized iron wire on the back of the waterproof termination box to the rebar. S4: After the concrete wall is poured and the facade is constructed, the bottom anchors are anchored to the concrete wall. The outer side of the waterproof termination box is cut off to be flush with the facade. The waterproof membrane to be terminated is fixed to the facade of the waterproof termination box with a pressure strip. S5: Fill the waterproof termination box with mortar until it is flush with the concrete wall surface. The bottom of the polyethylene waterproof membrane extends naturally downwards to the concrete wall surface. Finally, the decorative surface layer is applied to cover the polyethylene waterproof membrane.

2. The waterproof termination method according to claim 1, characterized in that: The waterproof junction box is made of rigid, weather-resistant PVC material.

3. The waterproof termination method according to claim 1, characterized in that: In S3, the top and bottom surfaces of the waterproof junction box protrude 5-10 mm beyond the template.

4. The waterproof termination method according to claim 1, characterized in that: The spacing between adjacent galvanized iron wires is 500mm.

5. The waterproof termination method according to claim 1, characterized in that: The top and bottom surfaces of the waterproof junction box are divided into an inner inclined section and an outer horizontal section, with the inclined section sloping downwards from the inside to the outside.