A floor heating system integrated with composite panels and construction method thereof

Abstract

The present invention provides a floor heating system integrated with a composite plate and a construction method thereof, wherein the construction procedure is to lay the heat preservation floor heating module, the heat radiation film and the carbon fiber heating wire on the prefabricated layer of the composite plate in sequence, and fill the grooved module space of the heat preservation floor heating module with pebbles, and then pour the composite layer concrete to form the composite plate top plate and the composite plate plate ribs, so that the composite plate and the floor heating system form an integrated structure. The present invention uses the composite layer concrete as a covering layer for heat storage, energy storage and heat equalization of the floor heating system, which can 100% save the leveling layer, steel mesh and fine stone concrete required by the traditional floor heating system, and its construction period and floor load, solves many technical problems of the traditional floor heating system such as high ground thickness, complex construction procedures, large floor load, low indoor net height and large additional cost, and the technical difficulty of being unable to realize prefabricated construction; it also solves the technical problems such as low structural rigidity and poor sound insulation effect of the traditional composite plate.

Description

Technical Field

[0001] The present invention belongs to the technical field of prefabricated building construction, and particularly relates to a prefabricated floor heating system integrated with a composite panel and a construction method thereof. Background Art

[0002] Since 2000, floor heating, as a new heating method, has completely replaced wall-mounted radiators and has been widely used in modern residential buildings. At present, floor heating is the main heating method for residential buildings in northern my country. With its many advantages such as heat storage, comfortable room temperature and low cost, floor heating accounts for more than 90% of the total floor heating projects in modern residential buildings, especially when floor heating is adopted in the design stage. Traditional floor heating is laid on the floor structure layer, and its construction process is: leveling layer → 30mm thick extruded board → thermal radiation film → PERT heating pipe → pebble filling layer → steel mesh → 50mm thick fine stone concrete, such as Figure 1 shown.

[0003] Due to the complex structure and many construction procedures of traditional floor heating, there are many technical problems such as high ground thickness, long construction period, large floor load, low indoor net height, high project cost and large additional costs, as well as technical difficulties in achieving prefabricated construction.

[0004] In recent years, various forms of electric floor heating have emerged, including heating cables, electric heating films, and graphene. While these methods offer numerous advantages, such as zero emissions, high intelligence, simple installation, and reduced headroom, they suffer from numerous drawbacks, including high electromagnetic radiation, lack of ground protection, low safety margins, and high construction and operating costs. This has limited their widespread adoption in modern residential architecture, leading to the continued dominance of traditional floor heating. Meanwhile, carbon fiber heating cables, as a form of electric floor heating, offer significant technical advantages. They convert electrical energy into infrared radiation, which oscillates to generate heat, providing heating. Because the wavelength of the infrared radiation generated matches that of a therapy device, residents benefit from both heat and complimentary infrared therapy, improving their living environment and overall health.

[0005] The prefabricated layers of the composite slabs are equipped with exposed truss reinforcements, making it impossible to lay PERT heating pipes continuously. If they are laid in sections, many joints will be generated. In the event of a leak, not only will the heating pipes need to be repaired, but the composite slabs will also need to be repaired and reinforced. Carbon fiber heating wires are laid in parallel. If a problem occurs with an individual heating wire, it will not affect the normal operation of other heating wires, eliminating the need for leaks and repairs. Centralized heating and its network and pipeline construction costs are not required, allowing for random, personalized, and intelligent heating. Compared to PERT heating pipes, they are more flexible and can be laid freely in the complex environment of the prefabricated layers of the composite slabs without any laying difficulties. Carbon fiber heating wires are the preferred product for installing floor heating systems in composite slabs.

[0006] At present, the floor slabs of residential buildings in my country are almost all cast-in-place solid floor slabs, and the thickness of the floor slabs is usually about 100mm. When there are negative differences in the construction links such as the steel bar spacing, floor slab thickness and concrete strength, the floor slab stiffness will be reduced, causing the floor slab to tremble, poor sound insulation effect and other problems, causing many troubles and inconveniences to the residents downstairs.

[0007] Around 2000, some provinces in my country began promoting the use of cast-in-place hollow-core slab technology. In 2012, this technology was compiled into an industry standard, JGJ / T268-2012, "Technical Specification for Cast-in-Place Concrete Hollow-Core Floors." This cast-in-place hollow-core concrete floor technology is primarily suitable for slabs with structural spans of 7 to 12 meters. Slabs with spans less than 7 meters are uneconomical, and therefore, have not been used in residential construction (except for free-standing residential buildings).

[0008] So far, composite slabs are mainly suitable for floors with relatively small structural spans, and floor heating systems are all laid on top of composite slabs. There is no precedent for placing floor heating systems and their carbon fiber heating wires inside composite slabs. Summary of the Invention

[0009] The purpose of the present invention includes the following aspects:

[0010] (1) For floor heating projects, the purpose of the present invention is to simplify the floor heating construction procedures, shorten the floor heating construction period and reduce the cost of floor heating projects.

[0011] (2) In terms of architectural design, the purpose of this invention is to increase the indoor net height or reduce the building height by reducing the floor thickness by 60mm. When the building height remains unchanged, the indoor net height can be increased; when the indoor net height remains unchanged, the building height can be reduced, thereby reducing the total building height. When the total height of a residential building is 80m, a 26-story building can be optimized to a 27-story building.

[0012] (3) As for the cost of structural engineering, the purpose of the present invention is to reduce the cost of the main structure engineering and pile foundation engineering by reducing the floor load. The present invention is specifically achieved through the following technical solutions:

[0013] The present invention is specifically implemented by the following technical solutions:

[0014] The first aspect of the present invention provides a floor heating system integrated with a composite panel, comprising a prefabricated layer of the composite panel, a cast-in-place layer of the composite panel, an insulation floor heating module, a thermal radiation film and a carbon fiber heating wire; wherein the cast-in-place layer of the composite panel forms a composite panel top plate and composite panel ribs; the insulation floor heating module is a groove-shaped module laid on the prefabricated layer of the composite panel; the thermal radiation film is laid or pasted on the inner surface of the insulation floor heating module; the carbon fiber heating wire is laid in the insulation floor heating module; the groove-shaped space of the insulation floor heating module is filled with granular aggregate to form an aggregate filling layer; the insulation floor heating module and the gaps between them, the thermal radiation film, the carbon fiber heating wire and the gaps in the aggregate filling layer and the fine stone concrete poured above form the composite panel top plate and the composite panel ribs, so that the composite panel and the floor heating system form an integrated structure.

[0015] As a further illustration of the present invention, the thermal insulation floor heating module is a groove-shaped module made of EPP material, two grooves are provided on the inner bottom surface of the groove-shaped module, and the carbon fiber heating wire is arranged in the grooves of the groove-shaped module.

[0016] As a further illustration of the present invention, the diameter of the upper opening of the groove is smaller than the diameter of the carbon fiber heating wire, so that the carbon fiber heating wire can be stuck into the groove under its own deformation force.

[0017] As a further explanation of the present invention, a single carbon fiber heating wire is bent into a U-shaped structure, and the two end wires of the U-shaped structure are respectively inserted into the two grooves of the slot-shaped module, and the positive and negative terminals of the single carbon fiber heating wire are respectively connected to the two ends of the K-shaped connector, and multiple carbon fiber heating wires are connected in parallel through the K-shaped connector.

[0018] As a further illustration of the present invention, the granular aggregate is specifically pebble filling aggregate.

[0019] As a further illustration of the present invention, the laying spacing of the carbon fiber heating wires is 100 mm.

[0020] A second aspect of the present invention provides a construction method for a floor heating system integrated with a composite panel, comprising the following steps:

[0021] S1. Laying a thermal insulation floor heating module, a heat radiation film, and a carbon fiber heating wire in sequence on a prefabricated layer of laminated panels, wherein the thermal insulation floor heating module is a trough-shaped module, the heat radiation film is laid or adhered to the inner surface of the thermal insulation floor heating module, and the carbon fiber heating wire is laid inside the thermal insulation floor heating module;

[0022] S2. Filling the grooved module space of the thermal insulation floor heating module with granular aggregate;

[0023] S3. Casting the composite layer concrete to form the composite slab top plate and composite slab ribs, so that the composite slab and the floor heating system form an integrated structure.

[0024] As a further illustration of the present invention, the carbon fiber heating wire is laid in the thermal insulation floor heating module specifically including:

[0025] Two grooves are preset on the inner bottom surface of the slot-shaped module;

[0026] Bend the single carbon fiber heating wire into a U-shaped structure, and insert the two end wires of the U-shaped structure into the two grooves of the slot module respectively;

[0027] The positive and negative terminals of a single carbon fiber heating wire adopt a K-type connection, and a plurality of carbon fiber heating wires are connected in parallel through the K-type connection.

[0028] Compared with the prior art, the present invention has the following beneficial technical effects:

[0029] 1. The present invention can save the leveling layer, steel mesh and fine stone concrete required for traditional floor heating, simplify the construction procedures of the floor heating system, and realize prefabricated construction. For high-rise residential buildings, the construction period can be shortened by more than 5 days and the cost of floor heating projects can be reduced by more than 50%.

[0030] 2. The present invention can reduce the floor design load by more than 10% by saving the leveling layer, steel mesh and fine stone concrete. For high-rise residential buildings, it can reduce the construction cost of pile foundation and main structure by more than 5%, that is, it can save 70 yuan / m2 based on the building area. 2 above.

[0031] 3. The present invention can reduce the floor thickness by 50 mm to 60 mm. When the building floor height remains unchanged, the indoor net height can be increased accordingly. When the indoor net height remains unchanged, the building floor height can be reduced accordingly, thereby reducing the total building height. When the total height of a residential building is 80 m, a 26-story building can be optimized to be a 27-story building.

[0032] 4. The present invention converts solid composite slabs into hollow composite slabs. This conversion only increases the amount of concrete by less than 5%, but the rigidity of the composite slabs increases by more than 3 times, and the sound insulation effect of the floor is reduced by about 5 decibels, which significantly improves and enhances the living environment of the owners. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the structure of traditional composite slabs and floor heating systems;

[0034] Figure 2 This is a schematic diagram of the structure of the composite panel and floor heating system of the present invention;

[0035] Figure 3 This is a schematic diagram of the partial structure of the composite panel and floor heating system of the present invention;

[0036] Figure 4 It is a schematic diagram of the planar layout of the carbon fiber heating wire of the present invention.

[0037] Description of Reference Numerals

[0038] Composite plate top plate 1, composite plate rib 2, aggregate filling layer 3, carbon fiber heating wire 4, thermal radiation film 5,

[0039] Thermal insulation floor heating module 6, composite board prefabricated layer 7, grooved space 8, groove 9, K-type joint 10. DETAILED DESCRIPTION

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0043] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," "outer," "longitudinal," "transverse," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] Furthermore, terms such as "horizontal," "vertical," "longitudinal," and "transverse" do not necessarily imply that a component must be absolutely horizontal or vertical, but rather that it can be slightly tilted. For example, "horizontal" simply refers to its direction, which is more horizontal than "vertical." It does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0045] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0046] The technical solution of the present invention will be explained below with reference to specific embodiments.

[0047] Example 1

[0048] like Figure 2 、 3 As shown in Figure 4, a floor heating system integrated with a composite plate is provided, comprising a composite plate prefabricated layer 7, a composite plate cast-in-place layer (a composite plate top plate 1 and a composite plate rib 2), an insulation floor heating module 6, a heat radiation film 5 and a carbon fiber heating wire 4; the composite plate prefabricated layer 7 is laid first; the insulation floor heating module 6 is a groove-shaped module laid on the composite plate prefabricated layer 7; the heat radiation film 5 is laid or pasted on the inner surface of the insulation floor heating module 6; the carbon fiber heating wire 4 is laid in the insulation floor heating module 6; the groove-shaped space 8 of the insulation floor heating module 6 is filled with granular aggregate to form an aggregate filling layer 3; the insulation floor heating module 6 and the gaps therebetween, the heat radiation film 5, the carbon fiber heating wire 4 and the gaps in the aggregate filling layer 3 and the fine stone concrete poured above, form the composite plate top plate 1 and the composite plate rib 2, so that the composite plate and the floor heating system form an integrated structure.

[0049] As a further illustration of the present invention, the granular aggregate is specifically pebble filling aggregate.

[0050] Among them, the thickness of the composite slab and the external dimensions of the composite slab precast layer, composite slab top plate, and composite slab ribs, including technical parameters such as the diameter, grade, and spacing of the internal steel bars, should be designed and determined in accordance with the "Technical Code for Cast-in-Place Concrete Hollow Floors" JGJ / T268-2012.

[0051] In a preferred embodiment, the thermal insulation floor heating module 6 is a groove-shaped module made of EPP material; the thermal radiation film 5 is laid or pasted on the inner surface of the groove-shaped space of the thermal insulation floor heating module 6; the carbon fiber heating wire 4 is arranged in the groove 9 of the groove-shaped space composed of the thermal insulation floor heating module 6 and the thermal radiation film 5; of course, other thermal insulation materials can also be used to make the thermal insulation floor heating module 6, such as EPS board or XPS board; of course, other types of heating pipes, such as PERT heating pipes, can also be laid in the groove 9 of the groove-shaped space 8 of the thermal insulation floor heating module 6; since the carbon fiber heating wire 4 itself has certain elastic deformation characteristics, the upper port diameter of the groove 9 is set to a size slightly smaller than the diameter of the carbon fiber heating wire 4, so that the carbon fiber heating wire 4 can be stuck into the groove by using its own elastic deformation force, making the fixing process of the carbon fiber heating wire 4 faster and more convenient.

[0052] In a preferred embodiment, a single carbon fiber heating wire 4 is bent into a U-shaped structure during installation, with the two ends of the U-shaped structure respectively inserted into the two grooves 9 of the slot module, and the positive and negative terminals of the single carbon fiber heating wire 4 are respectively connected to the two ends of a K-type connector 10, and multiple carbon fiber heating wires 4 are connected in parallel via the K-type connector 10. This connection allows multiple carbon fiber heating wires 4 to be connected in parallel, so that if a single carbon fiber heating wire 4 experiences a power failure or is damaged, it can be repaired and replaced individually, which is convenient and quick.

[0053] When the thickness of the prefabricated layer 7 of the composite panel and the top plate 1 of the composite panel remain unchanged, the present invention provides a floor heating system between the prefabricated layer 7 of the composite panel and the top plate 1 of the composite panel. The apparent thickness of the composite panel of the present invention is 40 mm greater than that of the traditional composite panel. Therefore, the structural rigidity of the composite panel of the present invention is more than 2.5 times that of the traditional composite panel.

[0054] The present invention places the floor heating system into the composite panel, transforming the traditional solid composite panel into a hollow composite panel, forming a closed cavity in the shape of a rectangular parallelepiped inside. The cavity is filled with thermal insulation materials and granular materials, which can improve the interlayer sound insulation effect by about 5 decibels.

[0055] The construction process of traditional floor heating systems is as follows: leveling layer → 30mm extruded board → thermal radiation film → PERT heating tube → pebble filling layer → steel mesh → fine stone concrete. The heating tube needs to be fixed with staples. However, the present invention only requires three products and three construction procedures: thermal insulation floor heating module, thermal radiation film and carbon fiber heating wire. The carbon fiber heating wire is fixed with a groove self-locking method. Therefore, the present invention is much simpler than the traditional floor heating system construction process.

[0056] Furthermore, since conventional floor heating systems are installed on top of the floor structure, they require a leveling layer, steel mesh, and fine stone concrete, and the pouring, vibration, and curing of the concrete all require separate construction periods. The floor heating system of the present invention, on the other hand, is installed on top of the precast layer of the composite slab. By sharing the composite layer concrete, the composite slab and floor heating system can be integrated into one construction, thus saving materials such as the leveling layer, steel mesh, and fine stone concrete, as well as three construction procedures and the required construction period.

[0057] The screed layer, steel mesh, and fine stone concrete of traditional floor heating systems account for 10% of the design load of the floor. However, the present invention uses the laminated concrete as the covering layer of the floor heating system, which can save 100% of the screed layer, steel mesh, and fine stone concrete of the traditional floor heating system. Therefore, compared with the existing technology, the present invention significantly reduces the floor load.

[0058] The screed and fine stone concrete of traditional floor heating systems require more than 60 mm of space. However, the present invention uses a composite layer of concrete as the covering layer of the floor heating system, which can save the space occupied by the screed and fine stone concrete of traditional floor heating systems. Therefore, the floor thickness of the existing technology is relatively high. In particular, for an 80m residential building, it can only be designed as a 26-story building. However, the floor heating system integrated with the composite slab of the present invention reduces the floor thickness by more than 60 mm, allowing the design of a 27-story building.

[0059] Compared with the floor heating system of the present invention, the traditional floor heating system has increased the comprehensive costs of materials, transportation and labor for the leveling layer, steel mesh and fine stone concrete. At the same time, for high-rise buildings, the increase in floor design load by about 10% leads to an increase of more than 5% in the construction cost of pile foundation and main structure, that is, the construction cost can increase by 70 yuan / m2 based on the building area. 2 Therefore, the engineering cost of the present invention is significantly lower than that of the prior art.

[0060] Example 2

[0061] like Figure 2 、 3 As shown in FIG4 , a construction method of the floor heating system integrated with the composite plate as described in the above embodiment 1 is provided, comprising the following steps:

[0062] S1. Laying a thermal insulation floor heating module, a heat radiation film, and a carbon fiber heating wire in sequence on a prefabricated layer of laminated panels, wherein the thermal insulation floor heating module is a trough-shaped module, the heat radiation film is laid or adhered to the inner surface of the thermal insulation floor heating module, and the carbon fiber heating wire is laid inside the thermal insulation floor heating module;

[0063] S2. Filling the grooved module space of the thermal insulation floor heating module with granular aggregate;

[0064] S3. Casting the composite layer concrete to form the composite slab top plate and composite slab ribs, so that the composite slab and the floor heating system form an integrated structure.

[0065] The above-mentioned insulated floor heating module is 600mm long and can be customized according to needs. The apparent width is 150mm, the apparent height is 40mm, the groove wall thickness is 15mm, the groove wall height and bottom plate thickness are both 20mm, and the net width within the groove is 120mm. Two grooves are set on the upper surface of the bottom plate, with a center distance of 100mm, a width of 6mm, and a depth of 7mm.

[0066] The purpose of setting the groove is to automatically fix the carbon fiber heating wire. If it is used to fix other heating tubes, the groove size can be adjusted appropriately. The specific fixing and electrical connection process is as follows:

[0067] Bend a single carbon fiber heating wire into a U-shaped structure, and insert the two ends of the U-shaped structure into the two grooves of the slot module respectively; (Since the carbon fiber heating wire itself has a certain elastic deformation property, the diameter of the upper end of the groove is set to be slightly smaller than the diameter of the carbon fiber heating wire, so that the carbon fiber heating wire can be inserted into the groove by utilizing its own elastic deformation force)

[0068] The positive and negative terminals of a single carbon fiber heating wire adopt a K-type connection, and a plurality of carbon fiber heating wires are connected in parallel through the K-type connection.

[0069] In summary, the present invention utilizes the mechanical characteristics of the smaller stress in the core area of ​​the composite plate cross-section and the tensile zone at the upper edge of the plate end, and lays the thermal insulation floor heating module, thermal radiation film and carbon fiber heating wire in sequence on the prefabricated layer of the composite plate, fills the grooved space of the thermal insulation floor heating module with pebbles or sand, and then pours the composite layer concrete. The composite layer concrete is used as a covering layer for heat storage, energy storage and heat equalization of the floor heating system, so that the composite plate and the floor heating system are assembled in an integrated construction, thereby saving the leveling layer, steel mesh and fine stone concrete required for the traditional floor heating system, as well as their comprehensive costs, floor load and construction space, providing a more flexible space plan for architectural design, and a more economical selection plan for the composite plate structure design, ultimately achieving the goal of improving the building's use function and maximizing the comprehensive economic benefits.

[0070] The above embodiments are preferred examples for implementing the present invention, and the present invention is not limited to the above embodiments. Any non-essential additions or replacements made by those skilled in the art based on the technical features of the present invention fall within the scope of protection of the present invention.

Claims

1. A floor heating system integrated with a composite panel, characterized in that: It includes a prefabricated layer of a laminated board, a cast-in-place layer of a laminated board, a thermal insulation floor heating module, a heat radiation film and a carbon fiber heating wire; wherein the cast-in-place layer of the laminated board forms a laminated board top plate and a laminated board rib; the thermal insulation floor heating module is a groove-shaped module laid on the prefabricated layer of the laminated board; the heat radiation film is laid or pasted on the inner surface of the thermal insulation floor heating module; the carbon fiber heating wire is laid in the thermal insulation floor heating module; The grooved space of the thermal insulation floor heating module is filled with granular aggregate to form an aggregate filling layer; The thermal insulation floor heating modules and the gaps therebetween, the heat radiation film, the carbon fiber heating wires, the gaps in the aggregate filling layer, and the fine stone concrete poured above form the top plate of the composite board and the ribs of the composite board, so that the composite board and the floor heating system form an integrated structure; The thermal insulation floor heating module is a groove-shaped module made of EPP material, and two grooves are provided on the inner bottom surface of the groove-shaped module, and the carbon fiber heating wire is arranged in the groove of the groove-shaped module; the opening diameter of the upper end of the groove is smaller than the diameter of the carbon fiber heating wire, so that the carbon fiber heating wire can be inserted into the groove under its own deformation force; a single carbon fiber heating wire is bent into a U-shaped structure, and the two end wires of the U-shaped structure are respectively inserted into the two grooves of the groove-shaped module, and the positive and negative terminals of the single carbon fiber heating wire are respectively connected to the two ends of the K-type connector, and a plurality of carbon fiber heating wires are connected in parallel through the K-type connector: The granular aggregate is specifically pebble filling aggregate.

2. The floor heating system integrated with the composite board according to claim 1, characterized in that: The laying spacing of the carbon fiber heating wires is 100 mm.

3. A construction method for a floor heating system integrated with a composite plate as described in any one of claims 1 to 2, characterized in that: The steps include: S1. Laying a thermal insulation floor heating module, a heat radiation film and a carbon fiber heating wire on the prefabricated layer of the laminated board in sequence, wherein the thermal insulation floor heating module is a groove-shaped module, the heat radiation film is laid or pasted on the inner surface of the thermal insulation floor heating module; and the carbon fiber heating wire is laid inside the thermal insulation floor heating module; The carbon fiber heating wire is laid in the thermal insulation floor heating module specifically including: presetting two grooves on the bottom surface of the grooved module; A single carbon fiber heating wire is bent into a U-shaped structure, and the two end wires of the U-shaped structure are respectively inserted into the two grooves of the slot-shaped module; the positive and negative terminals of the single carbon fiber heating wire are connected in K-type, and multiple carbon fiber heating wires are connected in parallel through K-type connection; S2, filling the grooved module space of the thermal insulation floor heating module with granular aggregate; S3. pouring the composite layer concrete to form the composite slab top plate and composite slab ribs, so that the composite slab and the floor heating system form an integrated structure.

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