Mesh-linked steel fiber reinforced concrete terrace

Abstract

The utility model discloses a netted chained steel fiber concrete terrace which comprises a foundation, a reinforced concrete layer is poured on the top of the foundation, a steel fiber concrete layer is laid on the top of the reinforced concrete layer, steel fibers are longitudinally and transversely distributed in concrete (without vertical fibers), and end hooks are in lap joint with one another to effectively transmit loads. Under the condition that the terrace performance (crack resistance and bearing capacity) is not changed, the steel fiber consumption is reduced by 20-30%, and the cost is reduced; when the using amount of the steel fibers is not changed, the crack resistance of the terrace is obviously improved; cracks on the surface of the terrace are fewer, the impermeability is improved, the durability is better, and the service life is longer.

Description

Technical Field

[0001] The present application relates to the technical field of floor structures, and in particular to a mesh-linked steel fiber concrete floor. Background Art

[0002] Steel fiber concrete floor is a new type of floor material, which uses steel fiber as a reinforcing material and forms a high-strength and high-durability floor after mixing with cement. Steel fiber concrete floor has many advantages, such as wear resistance, pressure resistance, corrosion resistance, dust resistance, anti-slip, etc., and is suitable for industrial plants, warehouses, parking lots, shopping malls and other places;

[0003] In the existing steel fiber concrete floor, after the steel fiber is mixed with sand, gravel, cement, etc., it is poured, vibrated, and leveled. The steel fibers are randomly scattered in it, and there is no connection between the steel fibers. There are weak areas, and the floor is prone to cracking first from the weak points. The cracks gradually develop, resulting in too many cracked areas, and the floor loses its use function and is damaged.

[0004] Therefore, the inventor, relying on many years of experience and practice in related industries, proposes a mesh-linked steel fiber concrete floor to overcome the defects of the prior art. Utility Model Content

[0005] The utility model aims to provide a mesh-linked steel fiber concrete floor in view of the problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A mesh-linked steel fiber concrete floor, comprising a foundation, a reinforced concrete layer is cast on the top of the foundation, a reinforcing steel bar is arranged in the inner cavity of the reinforced concrete layer, a steel fiber concrete layer is cast on the top of the reinforced concrete layer, an anti-corrosion and wear-resistant layer is fixed on the top of the steel fiber concrete layer, and the inner cavity of the steel fiber concrete layer is provided with steel fibers, and the steel fibers are overlapped and staggered with each other;

[0008] Preferably, the steel fibers are distributed vertically and horizontally in the concrete;

[0009] Preferably, an epoxy grindstone layer is laid between the anti-corrosion and wear-resistant layer and the steel fiber concrete layer;

[0010] Preferably, the anti-corrosion and wear-resistant layer is a transparent epoxy resin layer, and a uniformly distributed raised anti-wear layer is provided on the surface of the transparent epoxy resin layer;

[0011] Preferably, a waterproof layer is laid between the anti-corrosion and wear-resistant layer and the steel fiber concrete layer.

[0012] In summary, the beneficial effects of this application are as follows:

[0013] A steel fiber concrete layer is laid on top of the reinforced concrete layer. The steel fibers are distributed vertically and horizontally in the concrete (without vertical fibers), and the end hooks overlap each other to effectively transfer the load; the following effects are achieved;

[0014] (1) While the floor performance (crack resistance, bearing capacity) remains unchanged, the amount of steel fiber is reduced by 20-30%, reducing costs;

[0015] (2) When the amount of steel fiber remains unchanged, the crack resistance of the floor is significantly improved;

[0016] (3) There are fewer cracks on the floor surface, the impermeability is improved, the durability is better, and the service life is longer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0018] Figure 1 : It is a schematic diagram of the floor structure of the utility model.

[0019] Figure 2 : Schematic diagram of steel fiber end hook overlap.

[0020] Figure 3 : Schematic diagram of the random distribution of steel fibers in concrete during construction using the general method.

[0021] Figure 4 : It is a schematic diagram of the steel fiber concrete layer of the utility model.

[0022] Figure 5 : It is a schematic diagram of the reinforced concrete layer of the utility model.

[0023] Explanation of the accompanying drawings: 1. Foundation; 2. Reinforced concrete layer; 21. Reinforced steel bars; 3. Steel fiber concrete layer; 4. Anti-corrosion and wear-resistant layer; 41. Raised anti-wear layer; 5. Epoxy grindstone layer; 6. Waterproof layer; 7. Weak area; 8. Steel fiber end hooks overlap and interconnect. DETAILED DESCRIPTION

[0024] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0025] A mesh-linked steel fiber concrete floor comprises a foundation 1, a reinforced concrete layer 2 is cast on the top of the foundation 1, the inner cavity of the reinforced concrete layer 2 is provided with reinforcing steel bars 21, a steel fiber concrete layer 3 is cast on the top of the reinforced concrete layer 2, an anti-corrosion and wear-resistant layer 4 is fixed on the top of the steel fiber concrete layer 3, and the steel fiber concrete layer 3 is characterized in that the inner cavity of the steel fiber concrete layer 3 is provided with steel fibers, the steel fibers are overlapped and interlaced with each other, and the steel fibers are distributed vertically and horizontally in the concrete.

[0026] Reference Figure 1 , Steel fiber concrete layer 3, C30 concrete mix ratio is, water: 166kg, cement: 360kg, sand: 915kg, stone: 950kg, steel fiber: 20kg.

[0027] The floor was poured, vibrated and leveled according to the general construction method. The concrete flexural strength was 3.12MPa. After one year of normal use, the number of cracks was 1.35 / m2, the maximum crack width was 1.11mm, and the average crack width was 0.81mm.

[0028] The floor that uses this technology during the pouring, vibrating and leveling construction process has a concrete flexural strength of 3.65MPa. After one year of normal use, the number of cracks on the floor is 0.95 / m2, the maximum crack width is 0.75mm, and the average crack width is 0.53mm. The floor performance is significantly improved.

[0029] Reference Figure 1 , Steel fiber concrete layer 3, C30 concrete mix ratio is, water: 166kg, cement: 360kg, sand: 915kg, stone: 950kg, steel fiber: 20kg. The floor is poured, vibrated and leveled according to the general construction method. The concrete flexural strength is 3.12MPa. After one year of normal use, the number of cracks in the floor is 1.35 / m2, the maximum crack width is 1.11mm, and the average crack width is 0.81mm.

[0030] The mix ratio of steel fiber concrete floor C30 is water: 166kg, cement: 360kg, sand: 915kg, stone: 950kg, steel fiber: 16kg. The floor using this technology during pouring, vibrating and leveling has a concrete flexural strength of 3.05MPa. After one year of normal use, the number of cracks in the floor is 1.32 / m2, the maximum crack width is 1.08mm, and the average crack width is 0.82mm. The floor performance is basically the same as the control group, but the amount of steel fiber is reduced by 20%.

[0031] Reference Figure 1, Steel fiber concrete layer 3, C30 concrete mix ratio is, water: 162kg, cement: 365kg, sand: 910kg, stone: 960kg, steel fiber: 30kg. The floor is poured, vibrated and leveled according to the general construction method. The concrete flexural strength is 3.55MPa. After one year of normal use, the number of cracks in the floor is 1.15 / m2, the maximum crack width is 0.96mm, and the average crack width is 0.67mm.

[0032] The mix ratio of steel fiber concrete floor C30 is 162kg water, 365kg cement, 910kg sand, 960kg stone and 21kg steel fiber. The concrete flexural strength of the floor using this technology during pouring, vibrating and leveling is 3.60MPa. After one year of normal use, the number of cracks is 1.12 / m2, the maximum crack width is 0.97mm, and the average crack width is 0.66mm. The performance of the floor is basically the same as that of the control group, but the amount of steel fiber is reduced by 30%.

[0033] A mesh-linked steel fiber concrete floor, wherein an epoxy terrazzo layer 5 is laid between the anti-corrosion and wear-resistant layer 4 and the steel fiber concrete layer 3, and the epoxy terrazzo layer 5 can be selected in different patterns according to needs to provide a more beautiful floor;

[0034] The anti-corrosion and wear-resistant layer 4 is a transparent epoxy resin layer, which can more clearly display the pattern of the epoxy terrazzo layer below. A uniformly distributed raised anti-wear layer 41 is provided on the surface of the transparent epoxy resin layer. A waterproof layer 6 is laid between the anti-corrosion and wear-resistant layer 4 and the steel fiber concrete layer 3. The raised anti-wear layer is damaged by friction first during use, which increases the wear time of the floor and the service life of the floor. The raised anti-wear layer and the waterproof layer improve the wear resistance and waterproofness of the floor.

[0035] The implementation principle of this application is: when working, the two-way toothed steel fiber adjuster is used to adjust the steel fibers in the concrete to be in both vertical and horizontal directions, so that the end hooks of the steel fibers overlap each other to form a mesh, effectively transferring the load, eliminating weak areas in the concrete, and improving the performance and quality of the floor.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mesh-linked steel fiber concrete floor, comprising a foundation (1), a reinforced concrete layer (2) is cast on the top of the foundation (1), a reinforcing steel bar (21) is arranged in the inner cavity of the reinforced concrete layer (2), a steel fiber concrete layer (3) is cast on the top of the reinforced concrete layer (2), an anticorrosion and wear-resistant layer (4) is fixed on the top of the steel fiber concrete layer (3), characterized in that The inner cavity of the steel fiber concrete layer (3) is provided with steel fibers, and the steel fibers are overlapped and interlaced with each other.

2. According to the mesh-linked steel fiber concrete floor according to claim 1, the steel fibers are distributed vertically and horizontally in the concrete.

3. According to the mesh-linked steel fiber concrete flooring described in claim 1, an epoxy terrazzo layer (5) is laid between the anti-corrosion and wear-resistant layer (4) and the steel fiber concrete layer (3).

4. According to the mesh-linked steel fiber concrete floor according to claim 1, the anti-corrosion and wear-resistant layer (4) is a transparent epoxy resin layer, and a uniformly distributed raised anti-wear layer (41) is provided on the surface of the transparent epoxy resin layer.

5. According to the mesh-linked steel fiber concrete flooring according to claim 1, a waterproof layer (6) is laid between the anti-corrosion and wear-resistant layer (4) and the steel fiber concrete layer (3).

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