A prefabricated terrazzo floor structure

Abstract

This utility model discloses a prefabricated terrazzo floor structure, comprising an original reinforced concrete floor slab, a bonding agent layer sprayed onto the surface of the original reinforced concrete floor slab, a cement mortar leveling layer laid on top of the bonding agent layer, a special adhesive layer laid on top of the cement mortar leveling layer, and a terrazzo layer laid on top of the special adhesive layer. The terrazzo layer comprises multiple spliced ​​terrazzo units, and the splicing ends of the terrazzo units are provided with interlocking plugs and slots to complete the splicing. This utility model facilitates improved paving flatness and ensures the waterproofness of the overall structure under specific environments.

Description

Technical Field

[0001] This utility model relates to the field of terrazzo flooring technology, and in particular to a prefabricated terrazzo flooring structure. Background Technology

[0002] Terrazzo, as a common building decoration material, has achieved significant development in the field of architectural decoration due to its rich colors and textures. It is made by mixing aggregates such as crushed stone, glass, and quartz with binders such as cement or epoxy resin, followed by grinding and polishing. This unique manufacturing process gives it a distinctive visual effect. Today, terrazzo is widely used in various architectural spaces for floors, countertops, walls, and other decorative applications, greatly enhancing the aesthetics and decorative appeal of architectural spaces and meeting people's needs for diverse architectural decoration styles. With the continuous development of the construction industry, the requirements for terrazzo installation technology are also increasing, highlighting its growing importance in the field of architectural decoration.

[0003] In previous terrazzo installations, a series of conventional methods were employed to ensure the flatness of the surface and the adhesion between the terrazzo and the floor. For uneven surfaces, a simple cleaning was usually performed first, followed by laying a thin layer of ordinary cement mortar to attempt to adjust the flatness. However, this method had limited effectiveness for larger surface undulations. When dealing with leaks at expansion joints, some methods involved applying ordinary sealant to the joints to try and prevent water penetration; others involved laying a simple plastic film under the terrazzo as a waterproof layer. Furthermore, for adhesion between the terrazzo and the floor, ordinary cement slurry was often used as the bonding material, simply applied evenly manually before the terrazzo was laid. While these conventional methods could solve some problems to a certain extent, the overall results were not ideal. Utility Model Content

[0004] This application provides a prefabricated terrazzo floor structure, which facilitates improved paving flatness and ensures the overall waterproofness of the structure under specific conditions.

[0005] This application provides a prefabricated terrazzo flooring structure, which adopts the following technical solution:

[0006] A prefabricated terrazzo floor structure includes an original reinforced concrete floor slab. An interface agent layer is sprayed onto the surface of the original reinforced concrete floor slab. A cement mortar leveling layer is laid on top of the interface agent layer. A special adhesive layer is set on top of the cement mortar leveling layer. A terrazzo layer is laid on the special adhesive layer. The terrazzo layer includes multiple spliced ​​terrazzo units. The splicing end faces of the terrazzo units are provided with plugs and slots that can be inserted into each other, thereby completing the splicing.

[0007] By adopting the above technical solution, the prefabricated terrazzo floor structure designed in this utility model can enhance the bonding force between materials, reduce water absorption, prevent subsequent materials from cracking or becoming weak due to excessive moisture loss, prevent discoloration and alkali leaching, roughen the smooth base surface, and transition between different material properties by spraying an interface agent layer on the surface of the original reinforced concrete floor slab. Laying a cement mortar leveling layer can ensure that the ground is level, and setting a special adhesive layer can improve the bonding force between the terrazzo layer and the ground, thus completing the terrazzo layer installation.

[0008] Preferably, the interface agent layer includes a first interface agent, which is laid on the surface of the original reinforced concrete floor slab.

[0009] By adopting the above technical solution, when using the first interface agent, the bonding force between materials can be enhanced, the water absorption rate can be reduced, and the subsequent materials can be prevented from cracking or having insufficient strength due to excessive moisture loss. It can also seal the base surface, prevent the decorative layer from discoloring or powdering, form a rough and hardened layer on the floor slab surface so that the subsequent materials can adhere firmly and prevent hollowing and falling off. It can also alleviate the difference in shrinkage rate or strength between new and old materials and reduce the risk of cracking.

[0010] Preferably, the cement mortar leveling layer includes a first cement mortar, which is laid on a first interface agent. A groove is provided in the first cement mortar, and a shrinkage joint filling structure is provided in the groove. The shrinkage joint filling structure is filled with foam.

[0011] By adopting the above technical solution, when in use, the first cement mortar is laid on the interface agent layer to ensure that the ground is level when the terrazzo base is laid; the expansion joint filling structure is filled with foam to seal the expansion joint, prevent the ground from cracking, avoid the accumulation of dirt in the gaps and affect the ground, and to a certain extent play a role in aesthetics and curing.

[0012] Preferably, an elastic sealing strip is embedded in the groove, and the outer side of the elastic sealing strip is covered with the special adhesive layer.

[0013] By adopting the above technical solution, when in use, the groove is embedded with an elastic sealing strip and covered with a special adhesive layer on the outside, which can further enhance the sealing performance and improve the stability and integrity of the ground structure.

[0014] Preferably, the terrazzo unit includes a first terrazzo base plate disposed above a special adhesive layer, and a stainless steel U-shaped groove is embedded between adjacent first terrazzo base plates, the stainless steel U-shaped groove being filled with glass glue of the same color as the floor.

[0015] By adopting the above technical solution, when in use, a stainless steel U-shaped groove is embedded between adjacent first terrazzo base plates and filled with glass glue of the same color as the floor. This not only has a certain aesthetic effect, but also buffers and seals the expansion and contraction of the terrazzo layer to a certain extent.

[0016] Preferably, the interface agent layer includes a second interface agent, and a backfill of ceramsite concrete is provided between the second interface agent and the original reinforced concrete floor slab. A water-stop is installed in the middle of the backfill ceramsite concrete. The second interface agent is laid on the surface of the backfill ceramsite concrete and the water-stop. The top of the water-stop is also provided with a structural adhesive.

[0017] By adopting the above technical solutions, when in use, the backfilled ceramsite concrete can utilize its moisture absorption properties to prevent dampness and mold growth in places such as bathrooms. The water-stop can prevent water or moisture from seeping into surrounding walls or floors. The second interface agent can enhance the adhesion between materials, reduce water absorption, prevent subsequent materials from cracking or lacking strength, prevent discoloration and alkali leaching, roughen the smooth base surface, and transition between different material properties. The structural adhesive and the second interface agent can enhance the adhesion between materials.

[0018] Preferably, the cement mortar leveling layer includes a second cement mortar, which is laid on the second interface agent. A waterproof layer and a waterproof protective layer are also laid on the second cement mortar and the waterstop.

[0019] By adopting the above technical solution, when in use, laying a waterproof layer on the second cement mortar and the water-stop can prevent water from bathrooms and other areas from seeping into the reinforced concrete floor slab of the building, and laying a waterproof protective layer further ensures the waterproof effect.

[0020] Preferably, the terrazzo unit includes a second terrazzo base plate disposed above a dedicated adhesive layer.

[0021] By adopting the above technical solution, the second terrazzo base plate can complete the terrazzo flooring installation in places such as bathrooms and kitchens. It also utilizes the superior moisture absorption properties of expanded clay aggregate to prevent dampness and mold growth. At the same time, it effectively prevents water from penetrating into the reinforced concrete floor slab of the building by means of a water-stop, waterproof layer and waterproof protective layer.

[0022] Preferably, the terrazzo unit is provided with crisscrossing reinforcing ribs, which extend along the thickness direction of the terrazzo unit.

[0023] By adopting the above technical solution, crisscrossing reinforcing ribs extending along the thickness direction are set inside the terrazzo unit, which can enhance the structural strength of the terrazzo unit and improve the load-bearing capacity and stability of the entire prefabricated terrazzo floor structure.

[0024] Preferably, the upper surface of the terrazzo unit is covered with a wear-resistant resin layer, which is integrally formed with the terrazzo unit body through a secondary curing process.

[0025] By adopting the above technical solution, the upper surface of the terrazzo unit is covered with a wear-resistant resin layer that is integrated with the unit body through a secondary curing process, which can enhance the wear resistance of the terrazzo unit surface and extend the service life of the terrazzo floor.

[0026] In summary, this application has the following beneficial effects:

[0027] 1. The present invention relates to a prefabricated terrazzo floor structure, which sprays an interface agent layer onto the surface of the original reinforced concrete floor slab, thereby enhancing the adhesion between materials, reducing water absorption, and preventing subsequent materials from cracking or becoming weak due to excessive moisture loss.

[0028] 2. The prefabricated terrazzo floor structure designed in this utility model has a cement mortar leveling layer that can ensure the floor is level when the terrazzo base is laid, and the expansion joints are filled with foam to seal and prevent the floor from cracking and avoid dirt accumulation.

[0029] 3. The present invention relates to a prefabricated terrazzo floor structure, in which expanded clay concrete is backfilled in places such as bathrooms and a water-stop threshold is set. Expanded clay has excellent moisture absorption properties, and the water-stop threshold can prevent water or moisture from penetrating to the surrounding walls or floors. In addition, the waterproof layer and waterproof protective layer can prevent water from penetrating to the reinforced concrete floor slab of the building. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of Example 1;

[0031] Figure 2 This is a schematic diagram of the structure of Example 2;

[0032] Figure 3 This is a schematic diagram showing the structure of the terrazzo unit in the embodiment;

[0033] Explanation of reference numerals in the attached drawings: 1. Original reinforced concrete floor slab; 2. Interface agent layer; 21. First interface agent; 22. Second interface agent; 3. Cement mortar leveling layer; 31. First cement mortar; 32. Second cement mortar; 4. Special bonding layer; 5. Terrazzo layer; 51. Terrazzo unit; 511. First terrazzo base plate; 512. Second terrazzo base plate; 6. Groove; 7. Expansion joint filling structure; 8. Elastic sealing strip; 9. Stainless steel U-shaped groove; 10. Backfilled ceramsite concrete; 11. Waterstop; 12. Waterproof layer; 13. Waterproof protective layer; 14. Wear-resistant resin layer. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0035] Example 1

[0036] This application provides an embodiment of a prefabricated terrazzo flooring structure, such as... Figure 1 and Figure 3 As shown, the structure includes the original reinforced concrete floor slab 1, an interface agent layer 2, a cement mortar leveling layer 3, a special adhesive layer 4, and a terrazzo layer 5. The interface agent layer 2 is sprayed onto the surface of the original reinforced concrete floor slab 1. The cement mortar leveling layer 3 is laid on top of the interface agent layer 2, the special adhesive layer 4 is placed on top of the cement mortar leveling layer 3, and the terrazzo layer 5 is laid on top of the special adhesive layer 4. This achieves the effect of improving the adhesion between the terrazzo floor and the building floor slab while ensuring the flatness of the floor. The interface agent layer 2 enhances the adhesion between the materials, the cement mortar leveling layer 3 levels the floor, and the special adhesive layer 4 further strengthens the bonding effect.

[0037] Specifically, the interface agent layer 2 includes a first interface agent 21, which is typically a liquid material. Its composition may be based on a high molecular polymer with added special additives. It has good permeability and adhesion, allowing it to penetrate into the tiny pores of the original reinforced concrete floor slab 1 and enhance its bonding strength with the floor slab. The first interface agent 21 is applied to the surface of the original reinforced concrete floor slab 1 by spraying. The spraying should be uniform to ensure that the entire floor slab surface is covered.

[0038] The cement mortar leveling layer 3 includes a first cement mortar 31, which is a mixture of cement, sand, and water in a certain proportion. Its structural characteristics include a certain degree of fluidity and plasticity, allowing it to effectively fill uneven areas of the ground during installation. The first cement mortar 31 is laid on the interface agent layer 2, and tools are used to level and compact it during installation. Grooves 6 are provided within the first cement mortar 31, pre-reserved during the installation of the cement mortar, and are generally rectangular or trapezoidal in shape. Expansion joint filling structures 7 are provided within the grooves 6, and these structures are filled with foam. Polystyrene foam board is typically used, as it is lightweight and has good elasticity and sealing properties. The foam filling the grooves 6 prevents cracking of the ground due to expansion and contraction.

[0039] The special adhesive layer 4 typically uses a specially formulated adhesive material with strong adhesion and water resistance. This material can be a modified epoxy resin adhesive, which firmly bonds the terrazzo layer 5 to the cement mortar leveling layer 3. The special adhesive layer 4 is applied on top of the cement mortar leveling layer 3 by smearing, ensuring a uniform thickness to guarantee effective adhesion.

[0040] The terrazzo unit 51 includes a first terrazzo base plate 511 disposed above a dedicated adhesive layer 4. The first terrazzo base plate 511 is made by mixing aggregates such as crushed stone, glass, and quartz with adhesives such as cement or epoxy resin, followed by grinding and polishing. It has a smooth surface and rich colors and textures. The first terrazzo base plate 511 is bonded to the ground via the dedicated adhesive layer 4, and stainless steel U-shaped channels 9 are embedded between the first terrazzo base plates 511. The stainless steel U-shaped channels 9 have good corrosion resistance and aesthetics; their function is to separate and fix adjacent terrazzo base plates while increasing the aesthetic appeal of the floor. The stainless steel U-shaped channels 9 are filled with silicone sealant of the same color as the flooring; the sealant acts as a sealant and waterproofing agent, making the floor cleaner and more beautiful.

[0041] The terrazzo unit 51 has crisscrossing reinforcing ribs inside, typically made of steel bars, but fiberglass reinforcement can also be used. These ribs extend along the thickness of the terrazzo unit 51, significantly enhancing its strength and load-bearing capacity. Furthermore, the upper surface of the terrazzo unit 51 is covered with a wear-resistant resin layer 14, which is usually integrally formed with the terrazzo unit 51 body through a secondary curing process. The wear-resistant resin layer 14 can be made of polyurethane wear-resistant resin or epoxy wear-resistant resin. It significantly improves the wear resistance of the terrazzo unit 51 surface, extending the service life of the flooring.

[0042] The implementation principle of this embodiment is as follows: This embodiment optimizes the structure of the terrazzo floor by setting an interface agent layer 2, a cement mortar leveling layer 3, a special adhesive layer 4, and a terrazzo layer 5. The interface agent layer 2 enhances the adhesion between the original reinforced concrete floor slab 1 and the cement mortar leveling layer 3, reduces water absorption, and prevents quality problems in subsequent materials. The cement mortar leveling layer 3 ensures the flatness of the floor, providing a good foundation for terrazzo installation. The special adhesive layer 4 further strengthens the adhesion between the terrazzo layer 5 and the floor, making the terrazzo floor more solid. The use of stainless steel U-grooves 9 and glass glue not only increases the aesthetics of the floor but also provides sealing and waterproofing, effectively solving problems such as uneven ground, leakage at expansion joints, and insufficient adhesion in existing technologies. This improves the service life and safety of the terrazzo floor and represents a significant improvement over existing technologies.

[0043] Example 2

[0044] The difference between this embodiment and the above embodiments is that this embodiment is applicable to places such as bathrooms and kitchens. Figure 2 As shown, the interface agent layer 2 includes a second interface agent 22. A backfill of expanded clay concrete 10 is placed between the second interface agent 22 and the original reinforced concrete floor slab 1. Expanded clay has excellent moisture absorption properties; its porous structure can absorb and retain a certain amount of moisture, helping to prevent dampness and mold growth. Expanded clay concrete is a mixture of expanded clay, cement, sand, and water, and its relatively low density reduces the load on the floor slab. A water-stop sill 11 is installed in the middle of the backfill expanded clay concrete 10. The water-stop sill 11 is generally constructed of brick or concrete, and its height and width are determined according to actual needs. The main function of the water-stop sill 11 is to prevent water or moisture from seeping into the surrounding walls or floor from the loose bottom. A structural adhesive is applied to the top of the water-stop sill 11 to enhance its adhesion to other materials. The second interface agent 22 is laid on the surface of the backfill expanded clay concrete 10 and the water-stop sill 11, and its function is similar to that of the first interface agent 21, also enhancing adhesion and reducing water absorption.

[0045] The cement mortar leveling layer 3 includes a second cement mortar 32, which is laid on the interface agent layer 2. A waterproof layer 12 and a waterproof protective layer 13 are also laid on the second cement mortar 32 and the water-stop sill 11. The waterproof layer 12 is generally made of waterproof coating, commonly using materials such as polyurethane waterproof coating and SBS modified bitumen waterproof coating, which have good waterproof performance. The waterproof protective layer 13 can be cement mortar or fine aggregate concrete, and its function is to protect the waterproof layer 12 from external damage.

[0046] The terrazzo unit 51 includes a second terrazzo base plate 512 disposed above the dedicated adhesive layer 4, on which structural adhesive is applied. The structural adhesive further enhances the adhesion between the second terrazzo base plate 512 and other materials, making the terrazzo more securely installed on the floor.

[0047] The implementation principle of this embodiment is as follows: This embodiment, specifically addressing the characteristics of damp areas such as bathrooms and kitchens, adds structures including backfilled ceramsite concrete 10, a water-stop sill 11, a waterproof layer 12, and a waterproof protective layer 13. The backfilled ceramsite concrete 10 absorbs moisture and prevents mold growth; the water-stop sill 11 blocks the penetration of accumulated water and moisture; the waterproof layer 12 and waterproof protective layer 13 further enhance the waterproofing effect, preventing water from penetrating into the reinforced concrete floor slab. Structural adhesive is installed on the second terrazzo base slab 512, improving the installation stability of the terrazzo. Through these improvements, the waterproofing problem in terrazzo paving in bathrooms and kitchens is effectively solved, improving the service life and safety of terrazzo floors in damp environments, representing a significant advancement compared to existing technologies.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fabricated terrazzo flooring structure, characterized by: The original building reinforced concrete floor slab (1) is coated with an interface agent layer (2), a cement mortar leveling layer (3) is laid on top of the interface agent layer (2), a special adhesive layer (4) is set on top of the cement mortar leveling layer (3), and a terrazzo layer (5) is laid on the special adhesive layer (4). The terrazzo layer (5) includes multiple spliced ​​terrazzo units (51), and the splicing end face of the terrazzo unit (51) is provided with plugs and slots that can be inserted into each other, thereby completing the splicing.

2. The assembled terrazzo flooring structure according to claim 1, wherein: The interface agent layer (2) includes a first interface agent (21), which is laid on the surface of the original reinforced concrete floor slab (1).

3. The assembled terrazzo flooring structure according to claim 1, wherein: The cement mortar leveling layer (3) includes a first cement mortar (31), which is laid on a first interface agent (21). A groove (6) is provided in the first cement mortar (31), and a shrinkage joint filling structure (7) is provided in the groove (6). The shrinkage joint filling structure (7) is filled with foam.

4. The assembled terrazzo flooring structure according to claim 3, wherein: The groove (6) is provided with an elastic sealing strip (8), and the outer side of the elastic sealing strip (8) is covered with the special adhesive layer (4).

5. The assembled terrazzo flooring structure according to claim 1, wherein: The terrazzo unit (51) includes a first terrazzo base plate (511) disposed above a special adhesive layer (4), and a stainless steel U-shaped groove (9) is embedded between adjacent first terrazzo base plates (511), the stainless steel U-shaped groove (9) being filled with glass glue of the same color as the floor.

6. The assembled terrazzo flooring structure according to claim 1, wherein: The interface agent layer (2) includes a second interface agent (22). A backfill ceramsite concrete (10) is provided between the second interface agent (22) and the original reinforced concrete floor slab (1). A water stop (11) is installed in the middle of the backfill ceramsite concrete (10). The second interface agent (22) is laid on the surface of the backfill ceramsite concrete (10) and the water stop (11). The top of the water stop (11) is also provided with structural adhesive.

7. The assembled terrazzo flooring structure according to claim 1, wherein: The cement mortar leveling layer (3) includes a second cement mortar (32), which is laid on the second interface agent (22). A waterproof layer (12) and a waterproof protective layer (13) are also laid on the second cement mortar (32) and the water stop (11).

8. The assembled terrazzo flooring structure according to claim 1, wherein: The terrazzo unit (51) includes a second terrazzo base plate (512) disposed above a dedicated adhesive layer (4).

9. The prefabricated terrazzo floor structure according to claim 1, characterized in that: The terrazzo unit (51) is provided with intersecting reinforcing ribs, which extend along the thickness direction of the terrazzo unit (51).

10. A prefabricated terrazzo floor structure according to claim 1, characterized in that: The upper surface of the terrazzo unit (51) is covered with a wear-resistant resin layer (14), which is formed into the terrazzo unit (51) body by a secondary curing process.

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