A new self-insulation building block
By combining fiber concrete layer, XPS insulation layer and foamed concrete insulation layer, the problems of low bonding strength, flammability and high cost of self-insulating blocks are solved, and self-insulating blocks with high strength, good fire resistance and significant energy saving effect are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY CONSTR GRP CONSTR DEV CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-06-02
AI Technical Summary
Existing self-insulating blocks suffer from problems such as low bonding strength between insulation material and matrix, flammability, insufficient strength, and high production costs, making it difficult to meet building energy conservation and safety requirements.
The structure employs a combination of fiber-reinforced concrete, XPS insulation, and foamed concrete insulation layers, connected by a mesh, and incorporating both organic and inorganic insulation materials to increase strength and reduce costs.
It achieves high strength, good fire resistance, and significant energy-saving effect, meeting the requirements of building energy conservation, and is simple to produce and low in cost.
Smart Images
Figure CN224314452U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wall materials, specifically to a novel self-insulating block. Background Technology
[0002] Traditional building wall materials, such as concrete blocks and clay bricks, generally suffer from poor thermal insulation and high energy consumption. With increasingly stringent requirements for building energy conservation, developing new, high-efficiency thermal insulation wall materials has become an important research direction in the construction industry.
[0003] Currently, commonly used exterior wall insulation technologies are mainly divided into three types: external insulation, internal insulation, and sandwich insulation. External insulation structures often have safety hazards such as complex construction, poor durability, and easy detachment. Internal insulation structures occupy indoor usable area and are prone to thermal bridging. Although sandwich insulation structures solve the above problems, they have disadvantages such as high construction difficulty and high cost.
[0004] Self-insulating blocks, as a new type of wall material, combine insulation material with the block matrix, realizing the integration of structure and insulation. They have the advantages of simple construction, excellent insulation performance, and good durability, and are used to overcome the shortcomings of the existing external insulation, internal insulation and sandwich insulation structures.
[0005] However, existing self-insulating blocks still have some shortcomings, such as: (A) low bonding strength between the insulation material and the substrate, which easily leads to the insulation layer falling off and affecting the overall performance of the wall; (B) flammable insulation material, which poses a fire safety hazard; (C) low block strength, which makes it difficult to meet the requirements of load-bearing walls; (D) high production cost, which makes it difficult to promote and apply on a large scale.
[0006] There is currently no good solution in the existing technology. Utility Model Content
[0007] To address the aforementioned problems, this utility model proposes a novel self-insulating block with excellent thermal insulation performance, good fire resistance, high strength, and low cost, in order to meet the needs of building energy conservation and green building development, and overcome the shortcomings of the existing technology.
[0008] A novel self-insulating block includes a fiber concrete layer, an XPS insulation layer, and a foamed concrete insulation layer, wherein the XPS insulation layer is located between the fiber concrete layer and the foamed concrete insulation layer.
[0009] The fiber-reinforced concrete layer and the foamed concrete insulation layer are connected to the XPS insulation layer via several connecting meshes. In practice, the foamed concrete insulation layer faces indoors, and the fiber-reinforced concrete layer faces outdoors. The XPS insulation layer provides organic insulation, while the foamed concrete insulation layer provides inorganic insulation.
[0010] Preferably, the connecting mesh is a steel mesh.
[0011] Preferably, the steel mesh includes two longitudinal steel bars, which are respectively located in the fiber concrete layer and the foam concrete insulation layer, and several transverse steel bars are connected between the two longitudinal steel bars.
[0012] Preferably, the transverse reinforcing bars penetrate the XPS insulation layer, and both ends of the transverse reinforcing bars extend into the fiber concrete layer and the foamed concrete insulation layer, respectively.
[0013] Preferably, the thickness of the foamed concrete insulation layer is greater than the thickness of the XPS insulation layer.
[0014] Preferably, the thickness of the XPS insulation layer is greater than the thickness of the fiber concrete layer.
[0015] Preferably, the thickness of the fiber-reinforced concrete layer is between 20 mm and 0.5 mm.
[0016] Preferably, the thickness of the foamed concrete insulation layer is between 200mm and 5mm.
[0017] Preferably, the density of the foamed concrete insulation layer is divided into three grades, each with a density of 500 kg / m³. 3 700kg / m 3 and 1000kg / m 3 .
[0018] Preferably, the length of the new self-insulating block is 600mm, the height is 200mm, and the width is the sum of the thicknesses of the fiber concrete layer, the XPS insulation layer, and the foam concrete insulation layer.
[0019] Preferably, the foamed concrete insulation layer has longitudinally penetrating holes.
[0020] Preferably, there are at least two holes, which are aligned in one or more columns.
[0021] Preferably, there are two holes, which are aligned in a row.
[0022] Preferably, the strength of the fiber-reinforced concrete layer is C30.
[0023] The beneficial effects of this product are as follows: This product has a simple structure and is easy to manufacture. Compared with existing technologies, it has the following advantages: (A) The new self-insulating block combines organic and inorganic insulation, resulting in significant energy savings and meeting the 75% energy saving requirement. (B) The new self-insulating block has higher strength than traditional blocks, with a 28-day compressive strength exceeding 5MPa. (C) The new self-insulating block has a built-in fiber concrete protective layer, providing better waterproofing and seepage resistance. Furthermore, the steel wire mesh connecting the fiber concrete layer effectively prevents the insulation layer from detaching. (D) The outermost layer of the new self-insulating block is concrete, and the innermost layer is foamed concrete, both inorganic and non-combustible materials, effectively preventing the insulation layer from catching fire. (E) The new self-insulating block uses foamed concrete as the inorganic insulation material and employs a self-developed mix design, resulting in lower costs. (F) The new self-insulating block has a simple production process, requiring no complex production equipment and offering better operability. Attached Figure Description
[0024] The present invention will now be described in further detail with reference to the accompanying drawings.
[0025] Figure 1 A top view of the novel self-insulating block.
[0026] Figure 2 The right-side sectional view of the novel self-insulating block shows the holes penetrating the foamed concrete insulation layer.
[0027] Figure 3 A rear-view cross-sectional view of the novel self-insulating block. Detailed Implementation
[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0029] like Figure 1-3 As shown, in order to facilitate understanding of the above technical solution of this utility model, the above technical solution of this utility model will be described in detail below through specific usage methods.
[0030] A novel self-insulating block includes a fiber concrete layer 1, an XPS insulation layer 2 and a foamed concrete insulation layer 3, wherein the XPS insulation layer 2 is located between the fiber concrete layer 1 and the foamed concrete insulation layer 3.
[0031] The fiber-reinforced concrete layer 1 and the foamed concrete insulation layer 3 are connected to the XPS insulation layer 2 via several connecting meshes 4. In practice, the foamed concrete insulation layer 3 faces the indoor side, and the fiber-reinforced concrete layer 1 faces the outdoor side. The XPS insulation layer 2 provides organic insulation, while the foamed concrete insulation layer 3 provides inorganic insulation.
[0032] In one feasible embodiment, the connecting mesh 4 is a steel mesh.
[0033] In one feasible embodiment, the steel mesh includes two longitudinal steel bars 401, which are respectively located in the fiber concrete layer 1 and the foam concrete insulation layer 3, and several transverse steel bars 402 are connected between the two longitudinal steel bars 401.
[0034] In one feasible embodiment, the transverse steel bar 402 penetrates the XPS insulation layer 2, and both ends of the transverse steel bar 402 extend into the fiber concrete layer 1 and the foamed concrete insulation layer 3, respectively.
[0035] In one feasible embodiment, the thickness of the foamed concrete insulation layer 3 is greater than the thickness of the XPS insulation layer 2.
[0036] In one feasible embodiment, the thickness of the XPS insulation layer 2 is greater than the thickness of the fiber concrete layer 1.
[0037] In one feasible embodiment, the thickness of the fiber-reinforced concrete layer 1 is between 20 mm and 0.5 mm.
[0038] In one feasible embodiment, the thickness of the foamed concrete insulation layer 3 is between 200mm ± 5mm.
[0039] In one feasible embodiment, the density of the foamed concrete insulation layer 3 is divided into three grades, each with a density of 500 kg / m³. 3 700kg / m 3 and 1000kg / m 3 .
[0040] In one feasible embodiment, the novel self-insulating block has a length of 600mm, a height of 200mm, and a width equal to the sum of the thicknesses of the fiber concrete layer 1, the XPS insulation layer 2, and the foamed concrete insulation layer 3.
[0041] In one feasible embodiment, the foamed concrete insulation layer 3 is provided with longitudinally penetrating holes 5.
[0042] In one feasible embodiment, the holes 5 are preferably at least two and arranged in one or more columns.
[0043] In one feasible embodiment, the holes 5 are preferably two and aligned in a row.
[0044] In one feasible embodiment, the strength of the fiber-reinforced concrete layer 1 is C30.
[0045] In summary, through the above unique technical solutions, this product has a simple structure and is easy to manufacture, and has the following advantages compared to existing technologies: (A) The new self-insulating block combines organic and inorganic insulation, resulting in significant energy savings and meeting the 75% energy-saving requirement. (B) The new self-insulating block has higher strength than traditional blocks, with a 28-day compressive strength exceeding 5MPa. (C) The new self-insulating block has a built-in fiber concrete protective layer, providing better waterproofing and seepage resistance. Furthermore, the steel wire mesh connecting the fiber concrete layer effectively prevents the insulation layer from detaching. (D) The outermost layer of the new self-insulating block is concrete, and the innermost layer is foamed concrete, both inorganic and non-combustible materials, effectively preventing the insulation layer from catching fire. (E) The new self-insulating block uses foamed concrete as the inorganic insulation material, employing a self-developed mix design, resulting in lower costs. (F) The new self-insulating block has a simple production process, requiring no complex production equipment and offering better operability.
[0046] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
Claims
1. A novel self-insulating building block, characterized in that, It includes a fiber concrete layer (1), an XPS insulation layer (2) and a foamed concrete insulation layer (3), wherein the XPS insulation layer (2) is located between the fiber concrete layer (1) and the foamed concrete insulation layer (3); The fiber concrete layer (1) and the foamed concrete insulation layer (3) are respectively connected to the XPS insulation layer (2) through several connecting nets (4).
2. The novel self-insulating block as described in claim 1, characterized in that, The connecting mesh (4) is a steel mesh.
3. The novel self-insulating block as described in claim 2, characterized in that, The steel mesh includes two longitudinal steel bars (401), which are located in the fiber concrete layer (1) and the foam concrete insulation layer (3) respectively. Several transverse steel bars (402) are connected between the two longitudinal steel bars (401). The transverse steel bar (402) penetrates the XPS insulation layer (2), and both ends of the transverse steel bar (402) extend into the fiber concrete layer (1) and the foam concrete insulation layer (3), respectively.
4. The novel self-insulating block as described in claim 1, characterized in that, The thickness of the foamed concrete insulation layer (3) is greater than the thickness of the XPS insulation layer (2); The thickness of the XPS insulation layer (2) is greater than the thickness of the fiber concrete layer (1).
5. The novel self-insulating block as described in claim 4, characterized in that, The thickness of the fiber-reinforced concrete layer (1) is between 20 mm and 0.5 mm.
6. The novel self-insulating block as described in claim 4, characterized in that, The thickness of the foamed concrete insulation layer (3) is between 200mm and 5mm.
7. The novel self-insulating block as described in claim 1, characterized in that, The density of the foamed concrete insulation layer (3) is divided into three grades, namely 500 kg / m³. 3 700kg / m 3 and 1000kg / m 3 .
8. The novel self-insulating block as described in claim 1, characterized in that, The new self-insulating block has a length of 600mm, a height of 200mm, and a width equal to the sum of the thicknesses of the fiber concrete layer (1), XPS insulation layer (2), and foam concrete insulation layer (3).
9. The novel self-insulating block as described in claim 1, characterized in that, The foamed concrete insulation layer (3) has longitudinally penetrating holes (5).
10. The novel self-insulating block as described in claim 1, characterized in that, The strength of the fiber-reinforced concrete layer (1) is C30.