Heat-preservation waterproof lightweight wall structure

By using a combination of two waterproof layers and two insulation layers on the building's exterior walls, along with spraying technology, the problems of poor waterproofing and insulation performance and low construction efficiency in existing technologies have been solved, achieving efficient and low-cost waterproofing and insulation.

CN224119735UActive Publication Date: 2026-04-14CHINA CONSTR FIRST DIV GROUP CONSTR & DEV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing waterproofing and insulation measures for building exterior walls cannot balance waterproofing effectiveness and construction efficiency, resulting in poor insulation and waterproofing performance and high costs.

Method used

The structure adopts a combination of two waterproof layers and two insulation layers. The inner and outer waterproof layers are waterproof mortar layer and waterproof coating layer, respectively, and the inner and outer insulation layers are insulation mortar layer and lightweight insulation mortar layer, respectively. They are connected by an interface mortar layer and combined with spraying construction technology to improve the bonding strength.

Benefits of technology

It improved construction efficiency, reduced construction costs, enhanced waterproofing and insulation effects, reduced the risk of insulation material falling off, and improved the seismic resistance and structural stability of the wall.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a heat-insulation waterproof lightweight wall structure which comprises a wall, a waterproof layer, a heat-insulation layer and a connecting layer, and the waterproof layer, the connecting layer and the heat-insulation layer are arranged on the outer side of the wall layer by layer from inside to outside. The waterproof layers comprise the inner waterproof layer and the outer waterproof layer, the inner waterproof layer is arranged on the outer side of the wall body, the outer waterproof layer is arranged on the outer side of the inner waterproof layer, and the connecting layer is arranged on the outer side of the outer waterproof layer. The thermal insulation mortar is used as the thermal insulation layer, the material cost is reduced, and the thermal insulation mortar with different components is adopted in different building structure layers, so that the thermal insulation requirement is met, and the cost is further reduced; and light thermal insulation mortar is adopted in a high-rise building, so that a better anti-falling effect is achieved under the condition that the thermal insulation design requirement is met.
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Description

Technical Field

[0001] This utility model relates to the field of wall waterproofing and thermal insulation technology, specifically to a lightweight wall structure that is both thermally insulated and waterproof. Background Technology

[0002] Building exterior walls typically require waterproofing and insulation layers to achieve both. For example, the waterproof and insulated wall disclosed in CN118345956A uses insulation boards for insulation. While insulation boards offer advantages such as good insulation and flexible thickness, they are expensive, prone to deformation or detachment, and result in high costs during use. Furthermore, walls using insulation boards exhibit poor waterproofing, requiring multiple layers to achieve adequate protection, further increasing construction costs. However, existing waterproofing and insulation measures cannot balance waterproofing effectiveness with construction efficiency, leading to ultimately poor waterproofing and insulation results. This utility model provides a lightweight, waterproof and insulated wall structure to solve these problems. Utility Model Content

[0003] This utility model provides a lightweight wall structure that is both thermally insulated and waterproof, which, while meeting the requirements for thermal insulation and waterproofing, has higher construction efficiency and reduces construction costs.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is:

[0005] A lightweight wall structure with thermal insulation and waterproofing includes a wall, a waterproof layer, a thermal insulation layer, and a connecting layer. The waterproof layer, connecting layer, and thermal insulation layer are arranged layer by layer on the outer side of the wall from the inside out. The waterproof layer consists of two layers, including an inner waterproof layer and an outer waterproof layer. The inner waterproof layer is located on the outer side of the wall, and the outer waterproof layer is located outside the inner waterproof layer. The connecting layer is located outside the outer waterproof layer.

[0006] The insulation layer includes a bottom insulation layer and a top insulation layer. The bottom insulation layer is located at the bottom of the building, and the top insulation layer is located at the top of the building and is above the bottom insulation layer.

[0007] Furthermore, the bottom insulation layer is an insulation mortar layer, and the top insulation layer is a lightweight insulation mortar layer.

[0008] Furthermore, the bottom insulation layer is installed on the first floor of the building, and the top insulation layer is installed on the second floor and above.

[0009] Preferably, the wall is a single-layer aerated concrete block wall, and the aerated concrete block has a size of 600mm×350mm×150mm.

[0010] Preferably, the inner waterproof layer is a waterproof mortar layer, and the outer waterproof layer is a waterproof coating layer.

[0011] Preferably, the inner waterproof layer has a thickness of 10 mm, and the outer waterproof layer has a thickness of 1.5 mm.

[0012] Preferably, the connecting layer is an interface mortar layer.

[0013] Preferably, the thickness of the insulation layer is 30mm.

[0014] The beneficial effects of this utility model are as follows:

[0015] Using thermal insulation mortar as the insulation layer reduces material costs. Furthermore, using thermal insulation mortar with different compositions in different building structural layers not only meets insulation requirements but also further reduces costs. In high-rise buildings, lightweight thermal insulation mortar is used, which provides better anti-fall-off effect while meeting insulation design requirements.

[0016] Changing the specifications of aerated concrete blocks reduces the weight of a single block, enabling single-person construction of the wall, resulting in higher overall construction efficiency. Furthermore, the wall thickness is increased, reducing the thickness of the external wall insulation material and further lowering construction costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the specific structure of the present utility model;

[0018] Figure 2 This is a schematic diagram of the building layering application state of this utility model.

[0019] Attached reference numerals: 1. Wall; 2. Waterproof layer; 21. Inner waterproof layer; 22. Outer waterproof layer; 3. Insulation layer; 31. Bottom insulation layer; 32. High-rise insulation layer; 4. Connecting layer. Detailed Implementation

[0020] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] like Figure 1 , 2 As shown, this embodiment is applied to a data center. The walls of the data center need to meet the requirements of waterproofing, thermal insulation, and seismic resistance. The existing insulation board structure has the disadvantage of inconvenient maintenance and high cost. However, using thermal insulation mortar as the insulation layer has the advantages of high construction efficiency and better anti-fall-off effect while meeting the insulation design requirements. A specific embodiment of a lightweight wall structure with thermal insulation and waterproofing includes a wall 1, a waterproof layer 2, a thermal insulation layer 3, and a connecting layer 4. The waterproof layer 2, the connecting layer 4, and the thermal insulation layer 3 are arranged layer by layer on the outside of the wall 1 from the inside out. The waterproof layer 2 has two layers, including an inner waterproof layer 21 and an outer waterproof layer 22. The inner waterproof layer 21 is located on the outside of the wall 1, and the outer waterproof layer 22 is located on the outside of the inner waterproof layer 21. The connecting layer 4 is located on the outside of the outer waterproof layer 22.

[0023] like Figure 2 As shown, the insulation layer 3 includes a bottom insulation layer 31 and a top insulation layer 32. The bottom insulation layer 31 is located at the bottom of the building, on the first floor. The insulation design requirements for the first floor are higher, so an insulating mortar layer is used as the insulation layer. The top insulation layer 32 is located at the top of the building, on the second floor and above. Lightweight insulating mortar is used as the insulation layer, which can meet the insulation design requirements, but has a lower density, better adhesion, and better anti-fall-off effect, while also having a lower construction cost.

[0024] Furthermore, the bottom insulation layer 31 is an insulation mortar layer, composed of cement-based water-repellent expanded polystyrene insulation mortar, and the top insulation layer 32 is a lightweight insulation mortar layer, which is insulation mortar with added polystyrene particles, wherein the ratio of polystyrene particles, perlite and adhesive powder is 1:3:6. After adding polystyrene particles, the density of the insulation mortar is greatly reduced, the anti-falling effect is better, and the cost is lower.

[0025] Preferably, the wall 1 is a single-layer aerated concrete block wall, with the aerated concrete blocks measuring 600mm × 350mm × 150mm. This embodiment improves the thermal insulation performance of the wall 1 itself to reduce the thermal insulation performance of the external wall insulation layer, achieving a low-cost solution to meet insulation requirements through a combination of methods. Conventional aerated concrete block walls are 200mm or 250mm thick; this embodiment increases the wall thickness to 350mm, improving both thermal insulation performance and seismic resistance and structural stability. Aerated concrete blocks measuring 600mm × 350mm × 240mm weigh over 40kg, requiring multiple workers and hoisting equipment during construction, resulting in low efficiency and excessive labor intensity. This embodiment uses 150mm high aerated concrete blocks, each weighing no more than 25kg, enabling single-person construction, significantly reducing labor intensity, and improving construction efficiency.

[0026] Preferably, the inner waterproof layer 21 is a waterproof mortar layer with a thickness of 10mm, and the outer waterproof layer 22 is a waterproof coating layer, specifically a JS polymer cement-based type II waterproof coating with a thickness of 1.5mm. The two-layer waterproof structure, consisting of the waterproof mortar layer and the waterproof coating, fully meets the waterproofing requirements, and the cement-based waterproof coating ensures effective adhesion to the waterproof mortar layer, improving integrity and waterproofing performance.

[0027] Preferably, the connecting layer 4 is an interface mortar layer. The application is done by spraying, which creates irregular, uneven mortar anchor points on the outer side of the outer waterproof layer 22. These anchor points significantly increase the bonding strength between the thermal insulation mortar and the waterproof coating, effectively preventing the risk of the external wall thermal insulation mortar falling off. Spraying also greatly improves construction efficiency.

[0028] Preferably, the thickness of the insulation layer 3 is 30mm.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lightweight wall structure that is thermally insulated and waterproof, characterized in that: The wall (1), waterproof layer (2), insulation layer (3) and connecting layer (4) are provided on the outside of the wall (1) layer by layer from the inside to the outside. The waterproof layer (2) is provided in two layers, including an inner waterproof layer (21) and an outer waterproof layer (22). The inner waterproof layer (21) is provided on the outside of the wall (1), the outer waterproof layer (22) is provided on the outside of the inner waterproof layer (21), and the connecting layer (4) is provided on the outside of the outer waterproof layer (22). The insulation layer (3) includes a bottom insulation layer (31) and a top insulation layer (32). The bottom insulation layer (31) is located at the bottom of the building, and the top insulation layer (32) is located at the top of the building and above the bottom insulation layer (31). The bottom insulation layer (31) is an insulation mortar layer, and the top insulation layer (32) is a lightweight insulation mortar layer.

2. The lightweight wall structure with thermal insulation and waterproofing according to claim 1, characterized in that: The wall (1) is a single-layer aerated block wall, and the aerated block has a size of 600mm×350mm×150mm.

3. The lightweight wall structure with thermal insulation and waterproofing according to claim 1, characterized in that: The inner waterproof layer (21) is a waterproof mortar layer, and the outer waterproof layer (22) is a waterproof coating layer.

4. The lightweight wall structure with thermal insulation and waterproofing according to claim 3, characterized in that: The inner waterproof layer (21) has a thickness of 10 mm, and the outer waterproof layer (22) has a thickness of 1.5 mm.

5. A lightweight wall structure with thermal insulation and waterproofing according to claim 1, characterized in that: The connecting layer (4) is an interface mortar layer.

6. The lightweight wall structure with thermal insulation and waterproofing according to claim 1, characterized in that: The bottom insulation layer (31) is installed on the first floor of the building, and the top insulation layer (32) is installed on the second floor and above of the building.

7. A lightweight wall structure with thermal insulation and waterproofing according to claim 1, characterized in that: The thickness of the insulation layer (3) is 30 mm.

Citation Information

Patent Citations

  • Waterproof thermal insulation wall surface structure

    CN118345956A