Novel waterproof protective layer structure of basement exterior wall

Abstract

The utility model relates to the technical field of building construction, aims to solve the technical problems of poor waterproof performance, weak stability and slow construction progress of an existing waterproof structure, and discloses a novel waterproof protective layer structure of a basement outer wall, which comprises a gridding cloth waterproof protective layer arranged on the outer wall. The upper end of the gridding cloth waterproof protection layer is fixed to a top plate of a basement, a polymer cement waterproof coating layer is arranged at the upper end and the upper end connecting part of the gridding cloth waterproof protection layer, and a top plate waterproof layer is arranged on the upper portion of the polymer cement waterproof coating layer. A protective layer is arranged on the outer side of the gridding cloth waterproof protective layer, and a plain soil backfilling layer is arranged on the outer side of the protective layer. The gridding cloth waterproof protection layer has excellent tensile, anti-tearing, anti-stripping and other characteristics and excellent weather aging resistance, the service life can be greatly prolonged, the construction process of the gridding cloth is simple, the construction progress of the waterproof protection layer of the basement exterior wall can be greatly accelerated, and the waterproof performance of the protection layer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a novel waterproof protective layer structure for the basement exterior wall. Background Art

[0002] With the rapid economic development and the accelerated urbanization process in China, urban land is decreasing day by day at the present stage. As an important part of a building, once the basement structure and the backfill of the basement side trench are completed as soon as possible, the basement top slab can be used as a temporary construction road and a temporary material storage yard, and at the same time, it plays an important role in protecting the building structure from basement seepage and external environmental erosion. The waterproof protective layer of the basement exterior wall is the key to ensuring the waterproof effect of the basement and at the same time affects the construction progress of the backfill of the basement side trench.

[0003] At the present stage, the conventional waterproof protective layer is made of extruded polystyrene board. For example, the Chinese utility model patent with the publication number of CN221218902U discloses a waterproof protective layer structure for the basement exterior wall. Refer to Figure 1 and Figure 2 and paragraph

[0025] of the specification, a waterproof protective layer structure for the basement exterior wall, including a waterproof layer 1 and a protective layer arranged outside the waterproof layer 1...... The protective layer includes a plurality of protective plates 2 that are seamlessly spliced with each other. The protective plate 2 includes a flexible layer 201 and a rigid plate 202 that are adhesively bonded to each other. The flexible layer 201 is attached to the outside of the waterproof layer 1. Here, the flexible layer 201 can be made of common extruded boards, polystyrene boards, etc., and the rigid plate 202 can be made of PP boards, etc.

[0004] However, using the extruded polystyrene board does not have an operating space, and it is easy to float upward during subsequent backfill. After the backfill is completed, a squeezable space will be formed between the backfill material and the side wall, and it cannot generate sufficient restraint on the horizontal displacement of the retaining pile, and there is a great risk in the stability of the foundation pit; it is easy to fall off during the backfill process, losing the protection of the waterproof layer and causing damage to the waterproof layer. Content of the Utility Model

[0005] The purpose of the utility model is to provide a novel waterproof protective layer structure for the basement exterior wall to solve the technical problems of poor waterproof performance, weak stability and slow construction progress existing in the current waterproof structure.

[0006] To achieve the above purpose, the utility model provides a novel waterproof protective layer structure for the basement exterior wall, including a grid cloth waterproof protective layer arranged on the exterior wall. The upper end of the grid cloth waterproof protective layer is fixed on the top slab of the basement. A polymer cement waterproof coating layer is arranged at the upper end and the upper joint of the grid cloth waterproof protective layer. A top slab waterproof layer is arranged above the polymer cement waterproof coating layer; a protective layer is arranged outside the grid cloth waterproof protective layer, and a plain soil backfill layer is arranged outside the protective layer.

[0007] Using a mesh fabric as the waterproof protective layer, which has excellent tensile, tear - resistant and peel - resistant properties, significantly improves the durability and construction convenience of the waterproof layer. Moreover, the mesh fabric has excellent weather - aging resistance, extending the service life of the waterproof protective layer.

[0008] The polymer cement waterproof coating layer covers the upper end and the joint part of the mesh fabric waterproof protective layer, improving the overall waterproof performance of the waterproof layer. At the same time, it effectively prevents water from invading along the roof slab, further strengthening the waterproof effect of the basement.

[0009] The protective layer is located on the outside of the mesh fabric waterproof protective layer, providing additional physical protection, preventing damage to the waterproof layer by external forces, ensuring that the waterproof layer is not damaged during the backfilling process, and thus maintaining the integrity of the waterproof layer.

[0010] Furthermore, cement mortar and SM glue are set in the structural construction joint of the exterior wall. An additional waterproof layer is set outside the structural construction joint, and the additional waterproof layer is located between the mesh fabric waterproof protective layer and the exterior wall.

[0011] Setting cement mortar and slow - expansion type SM glue in the structural construction joint and adding an additional waterproof layer outside the structural construction joint further improves the waterproof effect of the structural construction joint, preventing water from penetrating into the internal structure of the basement exterior wall.

[0012] Furthermore, the SM glue is a slow - expansion type expansion glue, and a crystalline waterproof agent is set in the cement mortar.

[0013] In one embodiment, the protective layer is a cement mortar masonry protective layer.

[0014] In one embodiment, the protective layer is composed of small concrete blocks.

[0015] In one embodiment, the protective layer is a 30 - mm - thick extruded polystyrene board.

[0016] A new waterproof protective layer structure for the basement exterior wall provided by the present utility model has the following advantages:

[0017] The novel waterproof protective layer structure for the basement exterior wall of the present utility model adopts a mesh fabric waterproof protective layer, that is, a sandwich fabric is used as the material. The sandwich fabric has excellent tensile, tear-proof, and peel-proof properties as well as excellent weather and aging resistance, which can greatly extend the service life. Moreover, the construction process of the sandwich fabric is simple, which can greatly accelerate the construction progress of the basement exterior wall waterproof protective layer and improve the waterproof performance of the protective layer. The upper end of the mesh fabric is fixed on the basement roof and is closely combined with the polymer cement waterproof coating layer, further enhancing the waterproof effect and preventing water infiltration. The polymer cement waterproof coating layer covers the upper end and the connection part of the mesh fabric, ensuring the overall waterproofness of the roof area. At the same time, a protective layer is arranged on the outside of the mesh fabric waterproof protective layer, providing additional physical protection to prevent damage to the waterproof layer caused by the pressure during construction and the backfill soil. In addition, a plain soil backfill layer is arranged on the outside of the protective layer, ensuring the stability and overall waterproof performance of the basement exterior wall through layered compaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the basement waterproof joint structure provided by the present utility model.

[0019] In the figure: 1. Roof; 2. Additional waterproof layer; 3. Structural construction joint; 4. Roof waterproof layer; 5. Thick polymer cement waterproof coating layer; 6. Mesh fabric waterproof protective layer; 7. Exterior wall; 8. Small concrete blocks; 9. Plain soil backfill layer; 10. SM glue. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0021] Refer to Figure 1 , the present utility model provides a novel waterproof protective layer structure for the basement exterior wall, which includes a mesh fabric waterproof protective layer 6 arranged on the exterior wall 7. The upper end of the mesh fabric waterproof protective layer 6 is fixed on the roof 1 of the basement, ensuring the close combination of the waterproof layer and the roof 1 and effectively preventing water infiltration. At the same time, a polymer cement waterproof coating layer is arranged at the upper end and the upper connection part of the mesh fabric waterproof protective layer 6. The coating layer uses acrylate emulsion as the main component and has good adhesion and waterproof performance. The upper part of the polymer cement waterproof coating layer is further provided with a roof 1 waterproof layer, enhancing the overall waterproof effect of the roof 1 area.

[0022] A protective layer is provided on the outer side of the fiberglass mesh waterproof protective layer 6 to provide additional physical protection to prevent the backfill soil from damaging the waterproof layer. The material of this protective layer can be selected according to specific construction requirements, including a protective layer built with cement mortar, small concrete blocks 8, or extruded polystyrene boards with a thickness of 30 mm. Among them, the protective layer built with cement mortar uses MU10 small concrete blocks 8, which have good strength and durability and can effectively resist the influence of external pressure on the waterproof layer. The plain soil backfill layer 9 is provided on the outer side of the protective layer and is used for layered compaction to further ensure the stability and waterproof effect of the basement exterior wall 7.

[0023] Cement mortar and SM glue 10 are provided in the structural construction joint 3 of the exterior wall 7. The cement mortar is a cement and mortar composition mixed in a 1:1 ratio, which has good adhesion and compressive properties; a crystalline waterproofing agent is also added to the cement mortar, and the addition amount is 0.7 kg per square meter to enhance the waterproof performance of the cement mortar. The SM glue 10 is a slow-expansion type expansion glue, which can provide a certain expansion force during the construction process, effectively fill the gaps, and prevent water from penetrating into the interior of the exterior wall 7. An additional waterproof layer 2 is also provided outside the structural construction joint 3. This waterproof layer is located between the fiberglass mesh waterproof protective layer 6 and the exterior wall 7, further improving the waterproof performance of the structural construction joint 3 and ensuring the overall waterproof effect of the basement exterior wall 7.

[0024] The exterior wall 7 is a waterproof reinforced concrete exterior wall 7, and the top plate 1 is a waterproof reinforced concrete top plate 1. During construction, the surface needs to be repaired to make it flat and defect-free to ensure the construction quality and waterproof effect of the waterproof layer. This comprehensive waterproof protective layer structure can significantly improve the waterproof performance of the basement exterior wall 7 through multi-level waterproof design, extend the service life of the building, and ensure the stability and safety of the basement in a humid environment.

[0025] A new waterproof protective layer structure for the basement exterior wall provided by the present utility model has the following advantages:

[0026] Replace the traditional extruded polystyrene board material in the waterproof protective layer of the basement exterior wall with a mesh cloth waterproof protective layer, that is, use the mesh cloth as the main waterproof material. This optimization not only makes full use of the superior properties of the mesh cloth, such as excellent tensile strength, tear resistance and peel resistance, but also relies on its good weather resistance and anti-aging ability, enabling the waterproof protective layer to maintain effectiveness in a harsh underground environment for a long time, significantly extending the service life of the overall structure. In addition, the construction process of the mesh cloth is relatively simple and convenient, without complex operation steps, greatly shortening the construction period and improving the construction efficiency. The flexibility and easy operability of this material not only simplify the installation process of the waterproof protective layer of the basement exterior wall, but also reduce material damage or construction errors that may occur during construction, thus significantly improving the integrity and reliability of the waterproof layer. At the same time, the mesh cloth waterproof protective layer shows better tolerance when dealing with water pressure, humidity and chemical corrosion in the underground environment, further enhancing the overall performance of the waterproof layer and ensuring the safety and stability of the basement structure during long-term use. It not only solves the limitations of traditional extruded polystyrene boards in the application of waterproof protective layers, but also provides a more efficient and durable solution for the waterproof project of basement exterior walls.

[0027] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new waterproof protective layer structure for the exterior wall of a basement, characterized in that, It includes a fiberglass mesh waterproof protective layer (6) arranged on the exterior wall (7). The upper end of the fiberglass mesh waterproof protective layer (6) is fixed on the top plate (1) of the basement. A polymer cement waterproof coating layer is provided at the upper end and the upper joint of the fiberglass mesh waterproof protective layer (6). A waterproof layer of the top plate (1) is provided above the polymer cement waterproof coating layer. A protective layer is arranged on the outside of the fiberglass mesh waterproof protective layer (6), and a backfill layer of plain soil (9) is arranged on the outside of the protective layer.

2. The novel waterproof protective layer structure for the basement exterior wall according to claim 1, characterized in that, Cement mortar and SM glue (10) are arranged in the construction joint (3) of the exterior wall (7), and an additional waterproof layer (2) is located between the fiberglass mesh waterproof protective layer (6) and the exterior wall (7).

3. The novel waterproof protective layer structure for the basement exterior wall according to claim 2, characterized in that, The SM glue (10) is a slow-expansion type expanding glue, and a crystalline waterproofing agent is arranged in the cement mortar.

4. The novel waterproof protective layer structure for the basement exterior wall according to claim 1, wherein The protective layer is a protective layer built with cement mortar.

5. The novel waterproof protective layer structure for the basement exterior wall according to claim 1, characterized in that, The protective layer is composed of small concrete blocks.

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