Economical cement-based composite floor support plate

Abstract

The utility model relates to the technical field of fabricated building, disclose a kind of economical cement-based combined floor support plate, including cement base plate, pedestal assembly, combined screw rod and steel pipe, wherein, pedestal assembly includes connecting rod, bottom reinforcement group fixed in the lower end of connecting rod and top reinforcement group fixed in the upper end of connecting rod, bottom reinforcement group is embedded in cement base plate, and bottom reinforcement group and top reinforcement group between field pouring concrete, top reinforcement group and structural floor finish flush, the upper end of connecting rod is provided with threaded hole;The lower end of combined screw rod is threadedly cooperated with threaded hole, and fixed nut and movable nut located above fixed nut are arranged on combined screw rod.The above-mentioned economical cement-based combined floor support plate saves the use amount of concrete and reinforcing steel, and production transportation installation is more convenient, reliable connection is convenient for controlling floor thickness, and does not affect structural safety calculation index.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, and in particular to a cost-saving cement-based composite floor deck. Background Technology

[0002] In existing precast concrete building floor structure systems, the commonly used floor slab form is a composite of a 60mm precast composite slab and a cast-in-place layer of not less than 60mm. This approach has the following significant problems:

[0003] 1) Increased concrete usage: The minimum thickness for two-way slab floor structures requiring cast-in-place concrete is 80mm, with conventional engineering practices using around 100mm. However, when using precast composite slabs, the minimum thickness required by the specifications is 60mm for precasting plus 60mm for cast-in-place construction. Furthermore, due to on-site pipeline installation, composite slabs often need to be made to a thickness of 130mm or more. Because of the increased slab thickness and self-weight, structural calculations require corresponding increases in the dimensions of structural walls, columns, and foundations to meet the increased load-bearing capacity requirements.

[0004] 2) Increased steel reinforcement: To address the hoisting issue of the composite slab, additional truss reinforcement is required to increase the slab's stiffness and serve as hoisting points, significantly increasing the amount of steel reinforcement in the precast components themselves. Due to the increased slab thickness and self-weight, the structural bearing capacity calculation requires not only an increase in the reinforcement of the floor slab itself but also additional reinforcement for beams, walls, columns, and foundations.

[0005] 3) Difficulties in production, transportation, and installation: During production, the composite slabs require detailed design of prefabricated components based on drawings from various disciplines, including architecture, structure, water supply, heating, and electricity, before they can be cut and processed. Furthermore, production molds must be set up separately for different slabs and cannot be reused. The spacing between the reinforcing bars for each slab must be designed separately according to different drawings, resulting in low efficiency. During transportation, the composite slabs themselves are not very rigid and are prone to deformation and cracking. During installation, the composite slabs are thick and generally weigh over 1 ton, making hoisting operations difficult and increasing tower crane costs. Additionally, the reinforcing bars on the sides of the composite slabs need to extend into the beam supports, making it difficult to tie the reinforcing bars of the surrounding structural beams. Furthermore, the bottom 60mm of the composite slab is prefabricated, and when laying electromechanical pipelines on-site, they can only be run within the upper cast-in-place layer, where space is limited, often resulting in pipeline intersections and making pipeline laying extremely difficult.

[0006] 4) Unreliable connection methods: Due to production and transportation issues, large structural floor slabs often need to be split into two or more pieces and assembled on-site. The lap splicing of the reinforcing bars in the post-cast sections between these precast composite slabs is unreliable. The bottom reinforcing bars of the structural floor slab have 100% lap splice area within the same connection zone, creating weak points. Cracks are also very likely to appear in the post-cast sections. Another method, using closely spaced composite slabs, is even more prone to cracking. Furthermore, when using traditional composite slabs, the shear resistance between the precast slab and the cast-in-place concrete layer mainly relies on the rough surface of the composite slab and the truss web reinforcement. Manufacturers often use a broom to roughen the surface of the composite slab, which is very ineffective. The truss reinforcement is also limited in effect due to its small diameter. Therefore, the connection effect at the composite slab interface is unsatisfactory.

[0007] 5) Difficulty in controlling the thickness of cast-in-place concrete: Due to errors in the production of the precast layer at the bottom of the composite slab and the rough surface of the composite slab, it is impossible to use the traditional cast-in-place floor slab thickness controller. When casting the cast-in-place layer of the composite slab on site, the cast-in-place layer often becomes too thick.

[0008] 6) Unfavorable to structural safety calculation indicators: The increase in the self-weight load of the structural floor slab due to the increase in slab thickness will have an adverse impact on the structural safety indicators. Utility Model Content

[0009] The purpose of this utility model is to provide a cost-saving cement-based composite floor decking that addresses the shortcomings of traditional composite slabs, thereby achieving the goals of saving materials, facilitating production, transportation, and construction, and enhancing connection performance.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A cost-saving cement-based composite floor deck includes a cement base slab, a base assembly, composite bolts, and steel pipes, wherein:

[0012] The cement base slab is a precast component that serves as a protective layer on the bottom of the structural floor slab.

[0013] Several base assemblies are arrayed on a cement base plate. Each base assembly includes a connecting rod, a bottom steel bar group fixed to the lower end of the connecting rod, and a top steel bar group fixed to the upper end of the connecting rod. The bottom steel bar group is embedded in the cement base plate. Concrete is poured on site between the bottom steel bar group and the top steel bar group. The top steel bar group is flush with the finished surface of the structural floor slab. A threaded hole is provided at the upper end of the connecting rod.

[0014] Several combined screws are arranged in correspondence with each base assembly. The lower end of the combined screw is threaded into the threaded hole. The combined screw is equipped with a fixed nut and a movable nut located above the fixed nut.

[0015] A steel pipe is threaded through the combined screws in the same row and / or column, and the steel pipe is supported by a fixed nut and locked by a movable nut.

[0016] As an alternative, a concrete anchor block is provided on the cement base plate for each base assembly, and the concrete anchor block is used to fix the connecting rod.

[0017] As an alternative, the concrete anchor pier has a diameter of 80mm and a height of 60mm to 65mm.

[0018] As an alternative, the bottom reinforcing bar group includes several first radial bars welded to the lower end of the connecting rod and evenly distributed around the circumference, with a first circular reinforcing bar welded to the outer end of each first radial bar; the top reinforcing bar group includes several second radial bars welded to the upper end of the connecting rod and evenly distributed around the circumference, with a second circular reinforcing bar welded to the outer end of each second radial bar.

[0019] As an alternative, the first radial reinforcement, the second radial reinforcement, the first circular reinforcement, and the second circular reinforcement all use steel bars with a diameter of 4mm, the connecting rod has a diameter of 20mm, the first circular reinforcement has a diameter of 300mm, and the second circular reinforcement has a diameter of 200mm.

[0020] As an alternative, the thickness of the cement base plate is 15mm to 20mm, and high-strength steel wires are embedded in the cement base plate in both directions. A layer of gravel is set on the surface of the cement base plate to increase the surface roughness of the cement base plate.

[0021] As an alternative, the high-strength steel wire has a diameter of 2mm and a bidirectional spacing of 300mm.

[0022] As an alternative, the aggregate layer is formed by high-pressure spraying of 5mm aggregate onto the concrete surface of a cement-based slab.

[0023] As an alternative, the combined screw and steel pipe are reusable components that can be removed once the structural floor slab has reached the required strength.

[0024] The beneficial effects of this utility model are:

[0025] This energy-saving cement-based composite floor deck has the following advantages:

[0026] 1) Concrete saving: The precast cement base slab serves as the bottom protective layer of the structural floor slab. The floor slab reinforcement and equipment pipelines are laid on site, and the remaining thickness of the structural floor slab concrete is poured. There is no need to thicken the structural floor slab due to difficulties in laying pipelines, nor is it necessary to increase the amount of concrete used for structural walls, columns or foundations.

[0027] 2) Save steel bars: Bidirectional assembleable and detachable steel pipes are used on the upper part of the cement base slab to increase the overall rigidity and serve as hoisting tools. There is no need to add truss reinforcement. The steel pipe components can also be disassembled and recycled later. The self-weight load will not increase due to the increase in the thickness of the floor slab, and the amount of steel bars in the structural beams, slabs, walls, columns and foundations will not increase.

[0028] 3) Convenient production, transportation, and installation: During production, the cement-based composite floor deck only needs to be processed according to the floor slab splitting plan dimensions. Since the built-in high-strength steel wires are all of standard diameter and spacing, detailed drawings are not required, and the high-strength steel wires do not extend beyond the slab cross-section. The production molds are all standard-sized angle steel, requiring no drilling, and the molds can be reused. During transportation, the presence of the combined screws and steel pipes ensures the high rigidity of the cement-based composite floor deck, making deformation and cracking less likely. During installation, the lightweight uncast cement-based composite floor deck facilitates easy hoisting; ordinary tower cranes can meet the hoisting requirements. No steel reinforcement extends into the supports of the cement-based composite floor deck on-site, thus not affecting the binding of the surrounding beam reinforcement. The space for on-site pipeline laying is consistent with the space for cast-in-place floor slab laying, eliminating laying difficulties. Furthermore, the top steel reinforcement group of the base assembly in the cement-based composite floor deck can be used as a slab thickness controller, facilitating on-site concrete pouring control.

[0029] 4) Reliable connection: The cement base slab serves only as the protective layer at the bottom of the structural floor slab. The upper steel bars are laid on-site along the entire length and are cast as a whole with the cast-in-place concrete, forming a mechanical mode of overall stress. In addition, the concrete anchor piers on the cement base slab are used for shear resistance at the interface, and the base assembly is used to tie the cast-in-place concrete layer to the bottom of the cement base floor slab. Furthermore, the surface of the cement base slab is roughened by high-pressure spraying of gravel, making the structural reliability of this cement base composite floor slab completely equivalent to that of a cast-in-place structure.

[0030] 5) Facilitates control of floor slab thickness: The height of the pre-embedded base assembly is set according to the total thickness of the structural floor slab, and the elevation of the upper surface of the base assembly is the top elevation of the finished surface of the cast-in-place part of the structural floor slab.

[0031] 6) Does not affect structural safety calculation indicators: The use of cement-based composite floor decking does not require additional floor thickness and has the same performance as traditional monolithic cast-in-place floor slabs. It will not have an adverse impact on structural safety calculation indicators due to thickening of the floor slab or integrity. Attached Figure Description

[0032] Figure 1 This is a plan view of the energy-saving cement-based composite floor deck provided in this embodiment of the utility model;

[0033] Figure 2 This is a cross-sectional view of the energy-saving cement-based composite floor deck provided in this embodiment of the utility model;

[0034] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0035] Figure 4 This is a structural schematic diagram of the base assembly in the energy-saving cement-based composite floor deck provided in this embodiment of the utility model.

[0036] In the attached image:

[0037] 1. Cement base slab; 11. Concrete anchor block; 12. High-strength steel wire;

[0038] 2. Base assembly; 21. Connecting rod; 211. Threaded hole; 22. Bottom reinforcing bar assembly; 221. First radial reinforcing bar; 222. First circular reinforcing bar; 23. Top reinforcing bar assembly; 231. Second radial reinforcing bar; 232. Second circular reinforcing bar;

[0039] 3. Combined screw; 31. Fixed nut; 32. Adjustable nut;

[0040] 4. Steel pipes. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0042] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are 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. Therefore, they should not be construed as limitations on this utility model.

[0045] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.

[0046] Please see Figures 1 to 4 As shown, this embodiment provides a cost-saving cement-based composite floor deck, including a cement base slab 1, a base assembly 2, a composite bolt 3, and a steel pipe 4, wherein:

[0047] Cement base slab 1 is a precast component, serving as the bottom protective layer of the structural floor slab;

[0048] Several base assemblies 2 are arrayed on the cement base plate 1. Each base assembly 2 includes a connecting rod 21, a bottom steel bar group 22 fixed to the lower end of the connecting rod 21, and a top steel bar group 23 fixed to the upper end of the connecting rod 21. The bottom steel bar group 22 is embedded in the cement base plate 1. Concrete is poured on site between the bottom steel bar group 22 and the top steel bar group 23. The top steel bar group 23 is flush with the finished surface of the structural floor slab. A threaded hole 211 is provided at the upper end of the connecting rod 21.

[0049] Several combined screws 3 are arranged in a one-to-one correspondence with each base assembly 2. The lower end of the combined screw 3 is threaded into the threaded hole 211. The combined screw 3 is provided with a fixed nut 31 and a movable nut 32 located above the fixed nut 31.

[0050] A steel pipe 4 is threaded through the combined screw 3 in the same row and / or column. The steel pipe 4 is supported by a fixed nut 31 and locked by a movable nut 32.

[0051] This saves on the amount of concrete and steel bars used, makes production, transportation and installation more convenient, ensures reliable connections, facilitates control of floor slab thickness, and does not affect structural safety calculation indicators.

[0052] Optionally, a concrete anchor block 11 is provided on the cement base plate 1 for each base assembly 2, and the concrete anchor block 11 is used to fix the connecting rod 21.

[0053] Therefore, the concrete anchor pier 11 enhances the structural stability of the base assembly 2, ensuring that the components are firmly connected during construction and use, and thus facilitating the determination of the thickness of the subsequent cast-in-place concrete.

[0054] Specifically, the concrete anchor pier 11 has a diameter of 80mm and a height of 60mm to 65mm, and its position is aligned with the center of the connecting rod 21 to ensure the best anchoring effect.

[0055] Optionally, see details. Figure 4 The bottom reinforcing bar group 22 includes several first radial reinforcing bars 221 that are welded to the lower end of the connecting rod 21 and are evenly distributed around the circumference. Each first radial reinforcing bar 221 has a first circular reinforcing bar 222 welded to its outer end. The top reinforcing bar group 23 includes several second radial reinforcing bars 231 that are welded to the upper end of the connecting rod 21 and are evenly distributed around the circumference. Each second radial reinforcing bar 231 has a second circular reinforcing bar 232 welded to its outer end.

[0056] Thus, the first radial reinforcement 221 and the first circular reinforcement 222 form a stable bottom support, which plays a role in resisting pull-out and anchoring; the second radial reinforcement 231 and the second circular reinforcement 232 form a stable top structure, which is used to control the thickness of the cast-in-place slab, and cooperate with the bottom reinforcement group 22 to strengthen the integrity of the cement base slab 1 and the cast-in-place slab.

[0057] Specifically, the first radial reinforcement 221, the second radial reinforcement 231, the first circular reinforcement 222, and the second circular reinforcement 232 all use steel bars with a diameter of 4mm. The diameter of the connecting rod 21 is 20mm, the diameter of the first circular reinforcement 222 is 300mm, and the diameter of the second circular reinforcement 232 is 200mm. All steel bars use conventional sizes, which facilitates processing and procurement and reduces costs.

[0058] Optionally, the thickness of the cement base slab 1 is 15mm to 20mm. High-strength steel wires 12 are pre-embedded in the cement base slab 1 in a longitudinal and transverse arrangement. A layer of aggregate is provided on the surface of the cement base slab 1 to increase its surface roughness, ensuring reliable bonding between the subsequently poured concrete and the cement base slab 1. Furthermore, the four-sided molds for the cement base slab 1 can be made of ordinary L20X3 angle steel.

[0059] Specifically, the high-strength steel wire 12 has a diameter of 2mm and a bidirectional spacing of 300mm.

[0060] Specifically, the gravel layer is formed by high-pressure spraying of 5mm-sized gravel onto the concrete surface of the cement base slab 1.

[0061] Optionally, the combined screw 3 and steel pipe 4 are reusable components that can be removed after the structural floor slab has reached the required strength.

[0062] Installation process:

[0063] ① A precast cement base slab 1 is constructed, with high-strength steel wire 12 and base assembly 2 pre-embedded. After the concrete is poured and compacted, gravel is sprayed onto the surface of the cement base slab 1 under high pressure. ② A combined screw rod 3 is installed on the upper part of the base assembly 2. The lower end of the combined screw rod 3 can be screwed into the threaded hole 211 at the upper end of the base assembly 2. ③ A steel pipe 4 is installed between the fixed nut 31 and the movable nut 32 on the combined screw rod 3. ④ The cement-based composite floor deck is supported on-site using tool-type supports with support points set at the four corners, eliminating the need for full-span scaffolding. ⑤ The cement base slab 1 serves only as the bottom protective layer of the later structural floor slab. The reinforcing bars and electromechanical pipelines are laid on-site above the cement base slab 1, without affecting the construction of surrounding beams and slabs or increasing the thickness of the structural floor slab. ⑥ The thickness of the cast-in-place concrete is precisely controlled on-site using the base assembly 2. After the structural floor slab reaches the required strength, the combined screw rod 3 and steel pipe 4 can be removed and reused.

[0064] In summary, this energy-saving cement-based composite floor deck has the following advantages:

[0065] 1) Concrete saving: A 15mm-20mm thick high-strength concrete cement base plate 1 with high-strength steel wire 12 is used as the bottom protective layer of the structural floor slab. The floor slab reinforcement and equipment pipelines are laid on site, and the remaining thickness of the structural floor slab concrete is poured. There is no need to thicken the structural floor slab due to difficulties in laying pipelines, nor is it necessary to increase the amount of concrete used for structural walls, columns or foundations.

[0066] 2) Save steel bars: Bi-directional assembleable and detachable steel pipes 4 are used on the upper part of the cement base slab 1 to increase the overall rigidity and serve as hoisting tools. There is no need to add truss reinforcement. The steel pipes 4 can also be disassembled and recycled later. The self-weight load will not increase due to the increase in the thickness of the floor slab, and the amount of steel bars in the structural beams, slabs, walls, columns and foundations will not increase.

[0067] 3) Convenient production, transportation, and installation: During production, the cement base slab 1 only needs to be processed according to the dimensions of the floor slab splitting plan. Since the built-in high-strength steel wires 12 are all of standard diameter and spacing, no detailed drawings are required, and the high-strength steel wires 12 do not extend beyond the slab cross-section. The production molds are all standard-sized angle steel, requiring no drilling, and the molds can be reused. During transportation, due to the presence of the combined screw rods 3 and steel pipes 4, the cement-based composite floor deck has high rigidity and is not prone to deformation and cracking. During installation, because the uncast cement-based composite floor deck is lightweight, it is easy to lift, and ordinary tower cranes can meet the lifting requirements. On-site, the cement-based composite floor deck has no steel bars extending into the supports, which does not affect the binding of the surrounding beam steel bars. The on-site pipeline laying space is the same as the laying space of the cast-in-place floor slab, so there is no problem with laying. In addition, the top steel bar group 23 of the base assembly 2 in the cement base slab 1 can be used as a slab thickness controller, which facilitates the control of on-site concrete pouring construction.

[0068] 4) Reliable connection: The cement base plate 1 serves only as the protective layer at the bottom of the structural floor slab. The upper steel bars are laid on-site along the entire length and are cast as a whole with the cast-in-place concrete, forming a mechanical mode of overall stress. In addition, the 80mm diameter concrete anchor piers 11 on the cement base plate 1 are used for shear resistance at the joint surface, and the base assembly 2 is used to tie the cast-in-place concrete layer to the bottom plate of the cement base floor slab. Furthermore, the surface of the cement base plate 1 is roughened by high-pressure spraying of gravel, making the structural reliability of this cement base composite floor slab completely equivalent to that of a cast-in-place structure.

[0069] 5) Facilitates control of floor slab thickness: The height of the pre-embedded base assembly 2 is set according to the total thickness of the structural floor slab. The elevation of the upper surface of the base assembly 2 is the top elevation of the finished surface of the cast-in-place part of the structural floor slab. For example, when pouring concrete on site, the base assembly 2, which is arranged with a spacing of 1.2m between the top steel reinforcement group 23 and the bottom steel reinforcement group 22, can be used to pour concrete, and the floor slab thickness can be precisely controlled to be about 1.2m.

[0070] 6) Does not affect structural safety calculation indicators: The use of cement-based composite floor decking does not require additional floor thickness and has the same performance as traditional monolithic cast-in-place floor slabs. It will not have an adverse impact on structural safety calculation indicators due to thickening of the floor slab or integrity.

[0071] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A cost-saving cement-based composite floor decking, characterized in that, It includes a cement base plate (1), a base assembly (2), a combined screw (3), and a steel pipe (4), wherein: The cement base plate (1) is a precast component, serving as the bottom protective layer of the structural floor slab; Several base assemblies (2) are arrayed on the cement base plate (1). Each base assembly (2) includes a connecting rod (21), a bottom steel bar group (22) fixed to the lower end of the connecting rod (21), and a top steel bar group (23) fixed to the upper end of the connecting rod (21). The bottom steel bar group (22) is embedded in the cement base plate (1). Concrete is poured on site between the bottom steel bar group (22) and the top steel bar group (23). The top steel bar group (23) is flush with the finished surface of the structural floor slab. A threaded hole (211) is provided at the upper end of the connecting rod (21). Several of the combined screws (3) are arranged in a one-to-one correspondence with each of the base assemblies (2). The lower end of the combined screw (3) is threaded into the threaded hole (211). The combined screw (3) is provided with a fixed nut (31) and a movable nut (32) located above the fixed nut (31). The steel pipe (4) is threaded through the combined screw (3) in the same row and / or column, and the steel pipe (4) is supported by the fixed nut (31) and locked by the movable nut (32).

2. The energy-saving cement-based composite floor decking according to claim 1, characterized in that, A concrete anchor block (11) is provided on the cement base plate (1) corresponding to each of the base assemblies (2), and the concrete anchor block (11) is used to fix the connecting rod (21).

3. The energy-saving cement-based composite floor decking according to claim 2, characterized in that, The concrete anchor block (11) has a diameter of 80 mm and a height of 60 mm to 65 mm.

4. The energy-saving cement-based composite floor decking according to claim 1, characterized in that, The bottom reinforcing bar group (22) includes several first radial bars (221) that are welded to the lower end of the connecting rod (21) and are evenly distributed around the circumference. Each first radial bar (221) has a first circular reinforcing bar (222) welded to its outer end. The top reinforcing bar group (23) includes several second radial bars (231) that are welded to the upper end of the connecting rod (21) and are evenly distributed around the circumference. Each second radial bar (231) has a second circular reinforcing bar (232) welded to its outer end.

5. The energy-saving cement-based composite floor decking according to claim 4, characterized in that, The first radial reinforcement (221), the second radial reinforcement (231), the first circular reinforcement (222), and the second circular reinforcement (232) are all made of steel bars with a diameter of 4mm. The diameter of the connecting rod (21) is 20mm, the diameter of the first circular reinforcement (222) is 300mm, and the diameter of the second circular reinforcement (232) is 200mm.

6. The energy-saving cement-based composite floor decking according to claim 1, characterized in that, The thickness of the cement base plate (1) is 15mm to 20mm. High-strength steel wires (12) are embedded in the cement base plate (1) in a longitudinal and transverse arrangement. A stone layer is provided on the surface of the cement base plate (1) to increase the surface roughness of the cement base plate (1).

7. The energy-saving cement-based composite floor decking according to claim 6, characterized in that, The high-strength steel wire (12) has a diameter of 2 mm and a bidirectional spacing of 300 mm.

8. The energy-saving cement-based composite floor decking according to claim 6, characterized in that, The gravel layer is formed by high-pressure spraying of 5mm gravel onto the concrete surface of the cement base plate (1).

9. The energy-saving cement-based composite floor decking according to claim 1, characterized in that, The combined screw (3) and the steel pipe (4) are reusable parts and can be removed after the structural floor slab reaches the required strength.

Images