Heat preservation and sound insulation floor slab system and construction method thereof

Abstract

The invention relates to a heat-insulation and sound-insulation floor system and a construction method thereof, and belongs to the technical field of building construction. The heat-insulation and sound-insulation floor system comprises a base floor and a heat-insulation and sound-insulation composite board arranged on the base floor; the heat-preservation and sound-insulation composite board is formed by compounding a heat-preservation and sound-insulation layer and a protective layer in a factory. The heat-preservation and sound-insulation composite board is directly laid on the base floor, and an effective flexible isolation layer is formed between the upper rigid structure layer and the lower rigid structure layer through the elasticity modulus of the heat-preservation and sound-insulation layer, so that a sound bridge of solid sound transmission is thoroughly cut off, and the impact sound pressure level of the floor is remarkably reduced; meanwhile, the heat preservation and sound insulation layer serves as a continuous heat preservation layer, heat transfer is effectively blocked by means of the low heat conductivity coefficient of the heat preservation and sound insulation layer, and the heat preservation and heat insulation efficiency and the indoor thermal comfort degree of the floor are improved; in addition, the system not only simplifies the construction process and ensures the overall construction quality, but also can reduce the load and increase the use space.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and specifically relates to a thermal insulation and soundproof floor slab system and its construction method. Background Technology

[0002] With the increasing demands for living comfort and energy conservation in the construction industry, modern building floors must not only meet basic structural load-bearing requirements but also possess excellent thermal insulation properties and the ability to isolate noise, especially impact noise. To meet these needs, floating floor systems are widely used due to their superior sound insulation performance. A typical floating floor construction involves laying a layer of sound-insulating material (such as foamed plastic board or rock wool board) on a base concrete slab, followed by pouring a layer of reinforced concrete or gypsum self-leveling protective layer on top of this sound-insulating layer. This "rigid-flexible-rigid" structural form cuts off sound bridges, thereby reducing impact noise.

[0003] However, the following shortcomings still exist in the implementation of existing technologies: Firstly, the construction process involves laying (pasting) the thermal insulation and sound insulation layer, installing the reinforcing steel mesh, and pouring the fine stone concrete protective layer. Moreover, the fine stone concrete needs to be cured for more than 14 days after pouring. The construction process is lengthy and involves many steps. Secondly, the rigid protective layer has a large load, exceeding 100 kg per square meter, which means that the building load is increased by more than 100 kg per square meter. In terms of structural stability, some existing thermal insulation or sound insulation boards are prone to uneven settlement or compression deformation when bearing the pouring load of the upper protective layer and the long-term use load due to insufficient strength or excessive compression deformation rate. This can lead to quality problems such as hollowing and cracking of the upper concrete protective layer, which seriously affects the overall structural safety and service life of the floor system.

[0004] Third, the protective layer is thicker, increasing the floor slab thickness by more than 4 centimeters.

[0005] Fourth, due to its complex structure and diverse materials, the cost is relatively high.

[0006] Therefore, how to provide a floor system that is structurally stable, easy to construct, and has a lower cost, while simultaneously achieving efficient thermal insulation and sound insulation functions, is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides a thermal insulation and soundproof floor slab system and its construction method, achieving efficient thermal insulation and soundproofing functions.

[0008] To achieve the above objectives, the present invention provides the following solution: A thermal insulation and soundproof floor system includes a base floor slab and a thermal insulation and soundproof composite panel disposed on the base floor slab; the thermal insulation and soundproof composite panel is manufactured by combining a thermal insulation and soundproof layer and a protective layer.

[0009] Preferably, the thermal insulation and sound insulation layer is a single organic material, an organic-organic composite material, or an organic-inorganic composite material; the organic material includes cross-linked polyethylene, polyester fiberboard, and organic foaming materials.

[0010] Preferably, the joints between adjacent thermal insulation and soundproof composite panels are sealed with flexible sealant or cement mortar.

[0011] Preferably, the protective layer is any one of a high-strength mortar composite mesh structure, a cement pressure board, or a calcium silicate board.

[0012] Preferably, the thermal insulation and sound insulation composite board is laid with the base floor slab in any one of the following methods: no-adhesion, self-adhesive bonding, or on-site adhesive bonding.

[0013] A construction method for a thermal insulation and soundproof floor slab system includes the following steps: The surface of the base floor slab to be installed is treated; Install thermal insulation and soundproof composite panels on the surface of the base floor slab to be installed.

[0014] Preferably, the treatment of the surface to be installed on the base floor slab includes cleaning the surface and leveling the surface.

[0015] Preferably, the joints between adjacent thermal insulation and sound insulation composite panels are sealed with adhesive, and the adhesive used is at least one of organic sealant, flexible sealant or sealing mortar.

[0016] The present invention achieves the following technical effects compared to the prior art: This invention involves directly laying a thermal insulation and soundproof composite board on the base floor slab. Utilizing the low elastic modulus of the thermal insulation and soundproof layer within the composite board, an effective flexible isolation layer is formed between the upper and lower rigid structural layers, thereby completely severing the sound bridge of solid-borne sound transmission and significantly reducing the impact sound pressure level of the floor slab. Simultaneously, the thermal insulation and soundproof layer in this composite board, as a continuous insulation layer, effectively blocks heat transfer due to its low thermal conductivity, improving the thermal insulation performance of the floor slab and indoor thermal comfort. Furthermore, this system simplifies construction procedures, ensures overall construction quality, reduces floor load, decreases the overall thickness of the floor slab, and improves living space. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Among them, 1. base floor slab; 2. thermal insulation and sound insulation composite board; 21. thermal insulation and sound insulation layer; 22. protective layer. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides a thermal insulation and soundproof floor slab system and its construction method, achieving the purpose of efficient thermal insulation and soundproofing.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] refer to Figure 1 A thermal insulation and soundproof floor system includes a base floor slab 1 and a thermal insulation and soundproof composite panel 2 installed on the base floor slab. By directly laying the thermal insulation and soundproof composite panel 2 on the base floor slab 1, the low elastic modulus of the thermal insulation and soundproof layer 21 in the composite panel 2 forms an effective flexible isolation layer between the base floor slab 1 and the protective layer 22, thereby completely cutting off the sound bridge of solid-borne sound and significantly reducing the impact sound pressure level of the floor slab. Simultaneously, the thermal insulation and soundproof layer 21, as a continuous insulation layer, effectively blocks heat transfer due to its low thermal conductivity, improving the thermal insulation performance of the floor slab and indoor thermal comfort. Furthermore, this system simplifies construction procedures, reduces the floor load, decreases the overall thickness of the floor slab, and improves living space.

[0023] Furthermore, by using the thermal insulation and sound insulation layer 21 in the thermal insulation and sound insulation composite board 2 within this system, a "floating" structure was successfully constructed on the base floor slab 1. This construction completely cuts off the path of solid-borne sound transmission (i.e., sound bridge). When the upper floor slab is subjected to impact or vibrations caused by walking, the vibrations are first effectively absorbed and buffered by the elastic thermal insulation and sound insulation layer 21 in the thermal insulation and sound insulation composite board 2, greatly attenuating the sound wave energy transmitted to the base floor slab 1 and the space below, thereby significantly reducing the impact sound pressure level of the floor slab and improving the sound insulation performance of the building floor slab.

[0024] Furthermore, the thermal insulation and sound insulation layer 21 in the thermal insulation and sound insulation composite board 2 itself has a low thermal conductivity. In this system, it is laid on the base floor slab 1 over a large area continuously, which is equivalent to adding a high-efficiency thermal insulation layer to the building floor slab. It can effectively block heat transfer through the floor slab. For buildings with underfloor heating, it can prevent heat loss downwards and improve energy efficiency. For ordinary floors, it can improve the temperature of the floor slab, enhance indoor thermal comfort, and contribute to the overall energy conservation and emission reduction of the building.

[0025] Furthermore, the thermal insulation and sound insulation layer 21 is made of rubber and plastic thermal insulation and sound insulation board, polyester fiber thermal insulation and sound insulation board, or cross-linked polyethylene composite polyester fiber thermal insulation and sound insulation board. The rubber and plastic thermal insulation and sound insulation layer is selected to obtain stable and reliable sound insulation and moisture-proof performance in high humidity environments or occasions with extremely high waterproof requirements. The polyester fiber thermal insulation and sound insulation layer is selected to introduce a porous sound absorption supplementary mechanism in occasions that pursue green building and quiet environment (especially those that care about the clarity of indoor conversations). The cross-linked polyethylene composite polyester fiber thermal insulation and sound insulation layer is selected to artificially create an ideal sound insulation interface that can both dampen vibration like a spring and absorb sound like a sponge, while also being strong and durable, through the means of materials science in high-performance engineering projects.

[0026] Furthermore, the joints between adjacent thermal insulation and soundproof composite panels 2 are sealed with flexible sealant or cement mortar; the main purpose of sealing the joints is to prevent grout leakage and avoid sound bridging. Based on this, flexible sealant is chosen to achieve superior sound insulation performance, adaptability to deformation, and long-term sealing reliability. Cement mortar is chosen to achieve better structural integrity and enhance the anti-slip ability of the protective layer 22. In practical engineering, flexible sealant is usually preferred because it better protects the "floating" nature of the floating floor slab, preventing the re-formation of a rigid connection due to material thermal expansion and contraction or minor structural deformation.

[0027] Furthermore, the protective layer 22 is a high-strength mortar composite mesh structure, a cement pressure board, or a calcium silicate board. The choice of high-strength mortar composite mesh is to achieve extreme thinness, reduce weight, and enhance crack resistance. The selection of cement pressure board or calcium silicate board is to achieve standardized quality, rapid construction, and stable performance. The common goal of these solutions is to construct a new generation of thermal and sound insulation flooring system with superior performance, faster construction, and lighter load.

[0028] Furthermore, the thickness of the high-strength mortar composite mesh structure ranges from 0.2mm to 20mm, the width from 50cm to 240cm, and the length from 1m to 8m.

[0029] Furthermore, the thermal insulation and soundproof layer 21 and the protective layer 22 are bonded together in the factory. The adhesive layer bonds the upper protective layer 22 and the lower thermal insulation and soundproof layer 21 into a single composite structure. When the protective layer 22 is subjected to load or temperature changes, the adhesive layer can transfer shear stress, allowing the two layers to work together and reducing the concentration of shrinkage stress caused by uneven support below the protective layer 22. This effectively reduces the risk of hollowing and cracking of the protective layer 22. This integrity helps to distribute point loads or impact loads more evenly over the large area of ​​the thermal insulation and soundproof layer 21, avoiding excessive compression or permanent deformation of the thermal insulation and soundproof layer 21 due to excessive local pressure. When laying the thermal insulation and soundproof composite board by adhesive bonding, the position of the board can be precisely fixed, ensuring tight joints and preventing materials from subsequent processes from leaking through gaps to the bottom of the board and forming a rigid "sound bridge," thus ensuring that the designed sound insulation performance is not compromised. Full-surface bonding allows the thermal and sound insulation layer 21 to be under stress in a constrained state, resulting in a more stable dynamic elastic modulus. This helps ensure that the key indicator of impact sound reduction in the floor system remains stable within the design range and does not fluctuate due to changes in the position of the panels.

[0030] A construction method for a thermal insulation and soundproof floor slab system includes the following steps: Level and clean the base surface; The thermal insulation and sound insulation composite board 2 is bonded and fixed to the base surface by means of adhesive-free, self-adhesive or on-site application of adhesive, and multiple thermal insulation and sound insulation composite boards 2 are tightly assembled to form a continuous and integral thermal insulation and sound insulation layer. Seal the joints between adjacent thermal insulation and soundproof composite panels 2 with adhesive. On-site adhesive application includes at least one of polymer mortar, cement mortar, adhesive, or polymer adhesive material; The sealing adhesive should be at least one of organic sealant, flexible sealant, or sealing mortar.

[0031] After splicing, the thermal insulation and sound insulation composite panels 2 form a seamless or micro-seam integral structure, which improves the thermal insulation, sound insulation and waterproof performance.

[0032] After the thermal insulation and soundproof composite board 2 is laid, thin-layer ceramic tiles, wood flooring, or surface layer construction can be carried out directly on it.

[0033] Any adaptive changes made according to actual needs are within the scope of protection of this invention.

[0034] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A thermal insulation and soundproof floor slab system, characterized in that, It includes a base floor slab and a thermal insulation and sound insulation composite board installed on the base floor slab, wherein the thermal insulation and sound insulation composite board is composed of a thermal insulation and sound insulation layer and a protective layer.

2. The thermal insulation and soundproof floor slab system according to claim 1, characterized in that, The thermal insulation and sound insulation layer is made of a single organic material, an organic-organic composite material, or an organic-inorganic composite material; the organic material includes cross-linked polyethylene, polyester fiberboard, and organic foaming materials.

3. The thermal insulation and soundproof floor slab system according to claim 1, characterized in that, The joints between adjacent thermal insulation and soundproof composite panels are sealed with flexible sealant or cement mortar.

4. The thermal insulation and soundproof floor slab system according to claim 1, characterized in that, The protective layer is any one of a high-strength mortar composite mesh structure, a cement pressure board, or a calcium silicate board.

5. The thermal insulation and soundproof floor slab system according to claim 1, characterized in that, The thermal insulation and sound insulation composite board is laid with the base floor slab in any one of the following methods: no-adhesion, self-adhesive, or on-site adhesive bonding.

6. A construction method for a thermal insulation and soundproof floor slab system, characterized in that, The application of the thermal insulation and soundproof floor slab system according to any one of claims 1 to 5 includes the following steps: The surface of the base floor slab to be installed is treated; Install thermal insulation and soundproof composite panels on the surface of the base floor slab to be installed.

7. The construction method of the thermal insulation and soundproof floor slab system according to claim 6, characterized in that, The treatment of the surface to be installed on the base floor slab includes cleaning and leveling the surface.

8. The construction method of the thermal insulation and soundproof floor slab system according to claim 6, characterized in that, The joints between adjacent thermal insulation and soundproof composite panels are sealed with adhesive, using at least one of organic sealant, flexible sealant, or sealing mortar.

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