Concrete block with fireproof function

By coating the surface of concrete blocks with fire-retardant paint and incorporating internal slotted blocks, sliding blocks, and multiple fire-resistant layers, the problems of poor fire resistance and difficulty in alignment during construction are solved, achieving efficient fire protection and convenient construction.

CN224395890UActive Publication Date: 2026-06-23GUANGAN SHENGHE NEW BUILDING MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGAN SHENGHE NEW BUILDING MATERIALS CO LTD
Filing Date
2025-06-26
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing concrete blocks have poor fire resistance and are difficult to effectively protect against fire. Furthermore, aligning the blocks during construction is difficult and affects construction efficiency.

Method used

The concrete block surface is coated with epoxy resin fireproof coating, and the interior has a slotted block and sliding block structure, and is filled with gypsum-based slurry. It has multiple fireproof layers and sound-absorbing and heat-insulating layers, including gypsum board and calcium silicate fireproof layers and rock wool sound-absorbing and heat-insulating layers.

Benefits of technology

It provides durable fire protection, improves fire resistance, enhances heat and sound insulation, and facilitates block alignment through a slotted block and sliding block structure, thereby improving construction efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224395890U_ABST
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Abstract

The utility model relates to concrete block technical field, concretely is concrete block with fire -proof function, including concrete block body, the surface of concrete block body is coated with fire -retardant paint, the both ends of one side of concrete block body are equipped with the clamping slot, the both ends of concrete block body far away from the clamping slot side are installed the clamping block, the both ends of the other side of concrete block body have the sliding slot, the both ends of concrete block body far away from the sliding slot side are installed the sliding block, the middle part of concrete block body upper surface is installed the boss piece. Improved concrete block, can provide durable surface fire protection, form heat insulation protective layer in the fire simultaneously, and provide multiple fire protection, also enhanced the sound insulation effect, at the same time, the construction personnel can more easily realize accurate alignment when concrete block is placed, reduced the trimming operation, improved the construction efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of concrete block technology, specifically to concrete blocks with fireproof function. Background Technology

[0002] The field of concrete block technology mainly involves block products manufactured using concrete as the primary raw material. These blocks are widely used in wall structures, foundation construction, and various building projects. Infilled concrete blocks, based on traditional concrete blocks, incorporate filler materials, giving them better thermal insulation, heat insulation properties, and reduced weight. This meets the demands for improved building energy efficiency and environmental protection, reduces building energy consumption, and simultaneously improves construction efficiency.

[0003] During the design process of this utility model, the following problems were discovered in the existing technology:

[0004] The concrete blocks commonly used today are often designed as a single piece, which has poor fire resistance. In the event of a fire, it is difficult to protect the blocks well, which can easily lead to the destruction of the walls built by the fire. Furthermore, it is inconvenient for workers to align and stack the blocks, requiring frequent trimming and straightening operations. This cannot meet current usage and construction needs and reduces the construction efficiency of concrete block masonry operations. Utility Model Content

[0005] The purpose of this invention is to provide fire-resistant concrete blocks to solve the problems mentioned in the background art, such as poor fire resistance, difficulty in protecting the blocks in the event of a fire, and inconvenience in assisting workers to align and stack the blocks.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fire-resistant concrete block, comprising a concrete block body, the surface of which is coated with a fire-retardant coating; slots are provided at both ends of one side of the concrete block body; blocks are installed at both ends of the side of the concrete block body away from the slots; sliding grooves are provided at both ends of the other side of the concrete block body; sliders are installed at both ends of the side of the concrete block body away from the sliding grooves; a protrusion is installed in the middle of the upper surface of the concrete block body; a first fireproof layer is installed at one end of the interior of the concrete block body; a second fireproof layer is installed at the end of the interior of the concrete block body away from the first fireproof layer; a sound-absorbing and heat-insulating layer is attached to one side of the second fireproof layer; a filling cavity is provided inside the concrete block body; and several grouting holes are provided at the top of the filling cavity.

[0007] More preferably, a groove is formed in the middle of the lower surface of the concrete block body, and the internal size of the groove is consistent with the external size of the protrusion.

[0008] More preferably, the plurality of grouting holes are distributed in a ring at equal intervals at the top of the filling cavity.

[0009] More preferably, the fire-retardant coating is made of epoxy resin.

[0010] More preferably, the cavity is filled with a gypsum-based slurry.

[0011] More preferably, the first fireproof layer is made of gypsum board and the second fireproof layer is made of calcium silicate.

[0012] More preferably, the sound-absorbing and heat-insulating layer is made of rock wool.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This concrete block provides long-lasting surface fire protection through an outer layer coated with a fire-retardant coating that boasts strong adhesion and durability. The cavity is filled with a high-temperature resistant gypsum-based slurry, forming a heat-insulating layer in case of fire. A first fire-resistant layer of gypsum board and a second fire-resistant layer of calcium silicate utilize their exceptional fire resistance to provide multiple layers of fire protection. Finally, a sound-absorbing and heat-insulating layer of rock wool further enhances fire resistance and sound insulation, providing high-quality fire protection. The design, featuring slots on the concrete block surface for easy and precise alignment, sliders for sliding within grooves, and protrusions for insertion into recesses, facilitates precise alignment during block placement, reducing trimming and improving construction efficiency. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present invention;

[0016] Figure 2 This is a front view structural diagram of the fire-retardant coating of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal exploded structure of the concrete block body of this utility model;

[0018] Figure 4 This is a schematic diagram of the planar section structure of this utility model.

[0019] In the diagram: 1. Concrete block body; 2. Fireproof coating; 3. Slot; 4. Block; 5. Slide; 6. Sliding block; 7. Protrusion; 8. First fireproof layer; 9. Second fireproof layer; 10. Sound-absorbing and heat-insulating layer; 11. Filling cavity; 12. Grouting hole. Detailed Implementation

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

[0021] Please see Figures 1 to 4 The present invention provides a technical solution: a fireproof concrete block, comprising a concrete block body 1, the surface of which is coated with a fireproof coating 2, slots 3 at both ends on one side of the concrete block body 1, and blocks 4 installed at both ends on the side of the concrete block body 1 away from the slots 3, grooves 5 at both ends on the other side of the concrete block body 1, and sliders 6 installed at both ends on the side of the concrete block body 1 away from the grooves 5, a protrusion 7 installed in the middle of the upper surface of the concrete block body 1, a first fireproof layer 8 installed at one end inside the concrete block body 1, a second fireproof layer 9 installed at the end inside the concrete block body 1 away from the first fireproof layer 8, a sound-absorbing and heat-insulating layer 10 attached to one side of the second fireproof layer 9, and a filling cavity 11 inside the concrete block body 1, with several grouting holes 12 at the top of the filling cavity 11.

[0022] In this embodiment, as Figure 4 As shown, a groove is provided in the middle of the lower surface of the concrete block body 1, and the internal size of the groove is consistent with the external size of the protrusion 7.

[0023] In this embodiment, as Figure 2 As shown, several grouting holes 12 are distributed in a ring at equal intervals on the top of the filling cavity 11.

[0024] In this embodiment, as Figure 2 As shown, fire-retardant coating 2 is made of epoxy resin.

[0025] In this embodiment, as Figure 4 As shown, the interior of the filling cavity 11 is filled with gypsum-based slurry.

[0026] In this embodiment, as Figure 3 As shown, the first fireproof layer 8 is made of gypsum board, and the second fireproof layer 9 is made of calcium silicate.

[0027] In this embodiment, as Figure 3 As shown, the sound-absorbing and heat-insulating layer 10 is made of rock wool.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the working process of this fire-resistant concrete block during use is as follows:

[0029] First, an epoxy resin fire-retardant coating 2 is applied to the outer layer of the concrete block body 1. Its strong adhesion and durability provide long-lasting fire protection. Simultaneously, before concrete block construction, gypsum-based grout is injected into the filling cavity 11 through the grouting holes 12. Its strong high-temperature resistance forms a heat-insulating protective layer in a fire, improving the fire resistance of the concrete block. Furthermore, the design of the first fireproof layer 8 and the second fireproof layer 9 provides multiple layers of fire protection. The first fireproof layer 8, made of gypsum board, has strong fire resistance and effectively prevents the spread of flames. The second fireproof layer 9, made of calcium silicate, also has a very high fire resistance rating, further enhancing the fireproof effect. Finally, rock wool material provides sound absorption and heat insulation. Layer 10 provides excellent fire resistance and heat insulation while also effectively insulating sound. During concrete block masonry stacking, the slider 6 on one side of one block can be aligned with the groove 5 on the other side of another block. Then, the slider 6 is slid into the groove 5 to horizontally join the two blocks. When stacking blocks at a height, the groove at the bottom of one block is aligned with the protrusion 7 at the top of another block, so that the protrusion 7 engages with the groove, ensuring the vertical alignment. Finally, the other two sides of the blocks can be secured with the corresponding slots 3 using the locking blocks 4, which is suitable for placing thicker blocks. This achieves precise alignment of concrete bricks, avoiding additional trimming and tidying operations for workers.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fire-resistant concrete block, comprising a concrete block body (1), characterized in that: The surface of the concrete block body (1) is coated with fire-retardant paint (2). The two ends of one side of the concrete block body (1) are provided with slots (3). The two ends of the side of the concrete block body (1) away from the slots (3) are provided with blocks (4). The two ends of the other side of the concrete block body (1) are provided with grooves (5). The two ends of the side of the concrete block body (1) away from the grooves (5) are provided with sliders (6). The middle of the upper surface of the concrete block body (1) is provided with a protrusion (7). The first fireproof layer (8) is provided at one end of the interior of the concrete block body (1). The second fireproof layer (9) is provided at the end of the interior of the concrete block body (1) away from the first fireproof layer (8). The second fireproof layer (9) is attached to one side of the second fireproof layer (9). The interior of the concrete block body (1) is provided with a filling cavity (11). The top of the filling cavity (11) is provided with several grouting holes (12).

2. The fire-resistant concrete block according to claim 1, characterized in that: A groove is provided in the middle of the lower surface of the concrete block body (1), and the internal size of the groove is consistent with the external size of the protrusion (7).

3. The fire-resistant concrete block according to claim 1, characterized in that: The plurality of grouting holes (12) are equidistantly distributed in a ring at the top of the filling cavity (11).

4. The fire-resistant concrete block according to claim 1, characterized in that: The fireproof coating (2) is made of epoxy resin.

5. The fire-resistant concrete block according to claim 1, characterized in that: The cavity (11) is filled with gypsum-based slurry.

6. The fire-resistant concrete block according to claim 1, characterized in that: The first fireproof layer (8) is made of gypsum board, and the second fireproof layer (9) is made of calcium silicate.

7. The fire-resistant concrete block according to claim 1, characterized in that: The sound-absorbing and heat-insulating layer (10) is made of rock wool.