A construction engineering gypsum-based self-leveling structure

By introducing serpentine grooves and reinforcing strips into the self-leveling structure, combined with rubber and plastic insulation materials and epoxy resin adhesives, the problem of underfloor heating pipes shifting in gypsum-based self-leveling mortar was solved, achieving stable installation of underfloor heating pipes and uniform heat dissipation.

CN224395986UActive Publication Date: 2026-06-23ZHEJIANG ZHONGZHUANG BUILDING DECORATION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ZHONGZHUANG BUILDING DECORATION CO LTD
Filing Date
2025-05-28
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Underfloor heating pipes are prone to shifting or displacement during the backfilling process with gypsum-based self-leveling mortar, resulting in deviations in the heating direction of the floor and a lack of effective fixing structure.

Method used

The design employs a serpentine groove and reinforcing rib structure, combined with rubber and plastic insulation materials and epoxy resin adhesive, to ensure stable installation of the underfloor heating pipes. The design also reduces the impact of thermal expansion and contraction through the use of fine stone layers and gypsum self-leveling layers.

Benefits of technology

Effectively secure the underfloor heating pipes, prevent them from shifting, ensure proper heat dissipation, and improve installation stability and even heat distribution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the self -leveling floor structure technical field, concretely relates to a kind of building engineering gypsum base self -leveling structure, including the base layer, heat preservation water stop layer, floor heating pipe, fine stone layer, gypsum self -leveling layer and surface layer sequentially arranged from bottom to top, the heat preservation water stop layer is provided with serpentine groove, and heat preservation water stop layer is spaced apart and is distributed with reinforcing strip and reinforcing bar, the reinforcing strip and reinforcing bar are all provided with pipe slot, the floor heating pipe is embedded in serpentine groove, serpentine groove inner surface is coated with adhesive layer, the utility model is cooperated with floor heating pipe by the serpentine groove setting on heat preservation water stop layer, effectively guarantee the installation stability of floor heating pipe, and adhesive layer further makes floor heating pipe installation firm, in addition, the setting of fine stone layer also greatly avoids the possibility that floor heating pipe appears deviation or displacement, gypsum self -leveling layer firmly setting can effectively reduce the degree of floor heating pipe thermal expansion and contraction, guarantee the normal heat dissipation of floor heating pipe.
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Description

Technical Field

[0001] This utility model belongs to the field of self-leveling floor structure technology, specifically relating to a gypsum-based self-leveling structure for building engineering. Background Technology

[0002] Gypsum-based self-leveling mortar's main cementitious material is gypsum, and it possesses self-leveling properties. It's a self-leveling mortar specifically designed for floor leveling, making it an ideal material for precise floor leveling in buildings. It can also serve as a base layer for various floor decoration materials. As a floor leveling layer, gypsum-based self-leveling mortar offers unparalleled advantages over other materials. To address the corrosion of copper pipes in cement concrete systems, gypsum-based self-leveling mortar is commonly used for backfilling underfloor heating systems.

[0003] However, in practical applications, after the underfloor heating pipes are laid, gypsum-based self-leveling mortar is often used for direct backfilling and leveling. However, the underfloor heating pipes lack fixing devices, which makes it easy for the underfloor heating pipes to shift or move when the gypsum-based self-leveling mortar is poured. This may cause the heating direction of the floor to deviate. Therefore, there is an urgent need to design a structure that can fix the underfloor heating pipes and ensure that the underfloor heating pipes can dissipate heat normally. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a gypsum-based self-leveling structure for building engineering.

[0005] This utility model provides the following technical solution:

[0006] A gypsum-based self-leveling structure for building engineering includes, from bottom to top, a base layer, a thermal insulation and waterproofing layer, a floor heating pipe, a fine stone layer, a gypsum self-leveling layer, and a surface layer. The thermal insulation and waterproofing layer has serpentine grooves, and reinforcing strips and reinforcing ribs are distributed at intervals on the thermal insulation and waterproofing layer. Each reinforcing strip and reinforcing rib has a pipe groove. The floor heating pipe is embedded in the serpentine grooves, and the inner surface of the serpentine grooves is coated with an adhesive layer.

[0007] Furthermore, the thermal insulation and waterproofing layer is made of rubber and plastic thermal insulation material.

[0008] Furthermore, the width and height of the reinforcing strip are both greater than the width and height of the reinforcing rib.

[0009] Furthermore, the cross-section of the serpentine groove is semi-circular.

[0010] Furthermore, the top surface of the base layer is coated with a waterproof coating.

[0011] Furthermore, the fine stone layer is made of fine aggregate and coarse aggregate laid between the underfloor heating pipes.

[0012] Furthermore, the adhesive layer is made of epoxy resin adhesive.

[0013] Furthermore, the gypsum self-leveling layer is a structural layer formed using gypsum self-leveling mortar as the material.

[0014] Furthermore, the surface layer is a PVC surface layer or a wood surface layer.

[0015] The beneficial effects of this utility model are mainly reflected in:

[0016] The serpentine grooves on the insulation and waterproofing layer, combined with the underfloor heating pipes, effectively ensure the installation stability of the underfloor heating pipes. The adhesive layer further strengthens the installation of the underfloor heating pipes. In addition, the fine stone layer greatly reduces the possibility of the underfloor heating pipes shifting or moving. The firmly set gypsum self-leveling layer effectively reduces the degree of thermal expansion and contraction of the underfloor heating pipes, ensuring the normal heat dissipation of the underfloor heating pipes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the gypsum-based self-leveling structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the thermal insulation and water-stopping layer of this utility model without the installation of underfloor heating pipes;

[0019] Figure 3 This is a schematic diagram of the structure of the thermal insulation and water-stopping layer of this utility model with the underfloor heating pipe installed;

[0020] Figure 4 This is a schematic diagram of the overall cross-sectional structure of the gypsum-based self-leveling structure of this utility model.

[0021] The markings in the image are as follows:

[0022] 1-Base layer; 2-Insulation and waterproofing layer; 3-Fine stone layer; 4-Gypsum self-leveling layer; 5-Surface layer; 6-Underfloor heating pipe; 7-Serpentine groove; 8-Reinforcing rib; 9-Reinforcing strip; 10-Pipe passage groove; 11-Adhesive layer. Detailed Implementation

[0023] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand how to practice this utility model. Although this utility model has been described in conjunction with its preferred embodiments, these embodiments are merely illustrative and not intended to limit the scope of this utility model.

[0024] Combined with appendix Figure 1-4As shown, a gypsum-based self-leveling structure for building engineering includes, from bottom to top, a base layer 1, a thermal insulation and waterproofing layer 2, a floor heating pipe 6, a fine stone layer 3, a gypsum self-leveling layer 4, and a surface layer 5. The thermal insulation and waterproofing layer 2 has serpentine grooves 7, and reinforcing strips 9 and reinforcing ribs 8 are distributed at intervals on the thermal insulation and waterproofing layer 2. Both the reinforcing strips 9 and reinforcing ribs 8 have through-hole grooves 10 to facilitate better installation of the floor heating pipe 6. The floor heating pipe 6 is embedded within the serpentine grooves 7, and the inner surface of the serpentine grooves 7 is coated with an adhesive layer 11. The base layer 1 is a concrete substrate.

[0025] Specifically, the thermal insulation and water-stopping layer 2 is made of rubber and plastic thermal insulation material, which gives it good moisture-proof, damp-proof and heat-insulating effects.

[0026] Specifically, the width and height of the reinforcing strip 9 are both greater than the width and height of the reinforcing rib 8, and the reinforcing strip 9 is disposed between the two reinforcing ribs 8. The arrangement of the reinforcing strip 9 and the reinforcing rib 8 further increases the strength of the structural surface.

[0027] Specifically, the cross-section of the serpentine groove 7 is semi-circular, which facilitates the partial embedding of the underfloor heating pipe 6 within the serpentine groove 7 and enhances the installation stability of the underfloor heating pipe 6.

[0028] Specifically, the top surface of the base layer 1 is coated with a waterproof coating made of polyurethane waterproof coating, which ensures strong adhesion to the base layer 1 and good water resistance.

[0029] Specifically, the fine stone layer 3 is made of fine and coarse aggregates and is laid between the underfloor heating pipes 6. That is, the laying height of the fine stone layer 3 is slightly greater than the top height of the underfloor heating pipes 6 by 1cm, which further ensures the stable installation of the underfloor heating pipes 6 and good thermal conductivity. In addition, the laying of the fine stone layer 3 should not be too dense.

[0030] Specifically, the adhesive layer 11 is made of epoxy resin adhesive, which makes the underfloor heating pipe 6 stable in the serpentine groove 7.

[0031] Specifically, the gypsum self-leveling layer 4 is a structural layer formed by gypsum self-leveling mortar, and the thickness of the gypsum self-leveling layer 4 is greater than the diameter of the underfloor heating pipe 6, which firmly wraps the underfloor heating pipe 6, effectively reducing the degree of thermal expansion and contraction and protecting the underfloor heating pipe 6.

[0032] Specifically, the surface layer 5 is a PVC surface layer or a wood surface layer.

[0033] The specific working principle of this utility model is as follows:

[0034] Clean the damaged parts, dust, and easily peelable plaster layers of the concrete base 1 that needs to be filled with gypsum self-leveling mortar. Repair any cracks or holes in the base 1. Grind with a rotary grinder and vacuum the dust. Use a level to determine the horizontal elevation of the base 1 for grouting and mark it in a controllable place. Apply the interface agent and waterproof coating evenly.

[0035] Then, the thermal insulation and water-stopping layer 2 is laid, the adhesive layer 11 is applied in the serpentine groove 7, and the underfloor heating pipe 6 is embedded in the serpentine groove 7.

[0036] Pour the gypsum-based self-leveling mortar into a mixing bucket containing a certain amount of water. Mix with a hand mixer for 2-3 minutes, let it stand for 3 minutes, and then mix again for 2 minutes until the desired consistency is reached. Immediately pour the mixed slurry into the container, pouring it in one go to achieve the desired thickness to form a gypsum self-leveling layer 4. Then, use a trowel or a special toothed scraper to smooth it out, and finally use an air-venting roller to release air while scraping away small air bubbles from the surface.

[0037] No one should walk on the gypsum self-leveling layer 4 within 24 hours after its formation. The room should be ventilated to remove moisture, but cross drafts should be avoided to prevent the floor from drying too quickly and causing cracks. During the curing period, the floor should not be exposed to water. The top layer 5 can be laid after the gypsum self-leveling layer 4 has been cured.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modifications and substitutions based on the technical solutions and inventive concepts provided by the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A gypsum-based self-leveling structure for building engineering, comprising, from bottom to top, a base layer (1), a thermal insulation and waterproofing layer (2), a floor heating pipe (6), a fine stone layer (3), a gypsum self-leveling layer (4), and a surface layer (5), characterized in that: The thermal insulation and water-stopping layer (2) is provided with a serpentine groove (7), and the thermal insulation and water-stopping layer (2) is provided with reinforcing strips (9) and reinforcing ribs (8) at intervals. Both the reinforcing strips (9) and reinforcing ribs (8) are provided with pipe grooves (10). The floor heating pipe (6) is embedded in the serpentine groove (7). The inner surface of the serpentine groove (7) is coated with an adhesive layer (11). The gypsum self-leveling layer (4) is a structural layer formed by gypsum self-leveling mortar.

2. The gypsum-based self-leveling structure for building engineering according to claim 1, characterized in that: The thermal insulation and water-stopping layer (2) is made of rubber and plastic thermal insulation material.

3. The gypsum-based self-leveling structure for building engineering according to claim 1, characterized in that: The width and height of the reinforcing strip (9) are both greater than the width and height of the reinforcing rib (8).

4. The gypsum-based self-leveling structure for building engineering according to claim 1, characterized in that: The cross-section of the serpentine groove (7) is semi-circular.

5. A gypsum-based self-leveling structure for building engineering according to claim 1, characterized in that: The top surface of the base layer (1) is coated with a waterproof coating.

6. The gypsum-based self-leveling structure for building engineering according to claim 1, characterized in that: The fine stone layer (3) is made of fine aggregate and coarse aggregate and is laid between the underfloor heating pipes (6).

7. A gypsum-based self-leveling structure for building engineering according to claim 1, characterized in that: The adhesive layer (11) is made of epoxy resin adhesive.

8. A gypsum-based self-leveling structure for building engineering according to claim 1, characterized in that: The surface layer (5) is a PVC surface layer or a wood surface layer.