A floor slab sound insulation and thermal insulation system

Abstract

This utility model provides a floor slab sound insulation and thermal insulation system, relating to the field of floor slab sound insulation and thermal insulation technology. The system comprises, from bottom to top, a bottom structural layer, an autoclaved aerated concrete (AAC) functional layer, an interface reinforcement layer, and a surface leveling layer. The AAC functional layer is composed of precast AAC slabs, each comprising an AAC layer, a sound-absorbing resin layer, a polyester fiber layer, and a mineral wool layer. This floor slab sound insulation and thermal insulation system improves the sound insulation effect of the floor slab and ensures the durability of the sound insulation effect.

Description

Technical Field

[0001] This utility model relates to the field of floor sound insulation and thermal insulation technology, and more specifically, to a floor sound insulation and thermal insulation system. Background Technology

[0002] With the large-scale development of the housing industry and people's continuous improvement in quality of life, products with green, comfortable, healthy, and environmentally friendly characteristics are increasingly becoming market hotspots, and green and healthy housing has become the direction of real estate development. Effectively reducing noise from children running and jumping upstairs, dragging tables and chairs, and objects falling to the ground is crucial for creating a good indoor acoustic environment. However, on-site sound insulation measurements in residential buildings show that the weighted standardized impact sound of bare concrete floor slabs with a thickness of 120mm to 150mm is typically around 80dB. Therefore, the sound insulation performance of floor slabs in ordinary residential buildings designed according to current building and structural standards is substandard. To ensure that the weighted standardized impact sound of floor slabs does not exceed 75dB, necessary sound insulation measures need to be considered during the building design phase.

[0003] Existing technologies for sound-insulating and thermally insulating floor slab systems primarily employ floating construction methods, involving the bonding or dry-laying of polyester rolls, organic insulation boards, flexible rolls, fiber-based rolls, etc., followed by a 40mm thick layer of fine aggregate concrete or a 20mm thick layer of polymer mortar with reinforcing mesh. However, existing sound-insulating and thermally insulating floor slab systems are prone to interlayer separation, thus affecting the durability of the sound insulation effect. Utility Model Content

[0004] The purpose of this utility model is to provide a floor sound insulation and heat preservation system, which improves the sound insulation effect of the floor and ensures the durability of the sound insulation effect.

[0005] This utility model is achieved through the following technical solution:

[0006] A floor slab sound insulation and thermal insulation system comprises, from bottom to top, a bottom structural layer, an autoclaved aerated concrete (AAC) functional layer, an interface reinforcement layer, and a surface leveling layer; the AAC functional layer is composed of precast AAC slabs, and the precast AAC slabs include an AAC layer, a sound-absorbing resin layer, a polyester fiber layer, and a mineral wool layer.

[0007] Furthermore, the surface of the autoclaved aerated concrete precast slab is provided with grooves, and sound-insulating elastic pads are provided in the grooves.

[0008] Furthermore, the sound-insulating elastic pad is a rubber sound-insulating pad, a polyurethane foam sound-insulating pad, or a felt sound-insulating pad.

[0009] Furthermore, the bottom structural layer and the autoclaved aerated concrete functional layer are connected by pre-embedded tensioned steel strands.

[0010] Furthermore, the bottom structural layer is a concrete layer, and a two-way steel mesh is provided inside the concrete layer.

[0011] Furthermore, the interface reinforcement layer is a polymer cement mortar layer, and the surface of the polymer cement mortar layer is coated with a nano-scale heat insulation coating.

[0012] Furthermore, the surface leveling layer is a lightweight mortar layer, and an alkali-resistant glass fiber mesh is provided within the lightweight mortar layer.

[0013] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0014] This invention utilizes autoclaved aerated concrete to improve the impact sound insulation of floor slabs. The gradient structure, combined with sound-absorbing resin, polyester fiber, and mineral wool, blocks the sound wave transmission path, enhancing the absorption of sound waves at different frequencies and preventing interlayer separation from affecting the floor slab's sound insulation. The interface reinforcement layer strengthens interlayer adhesion and seals micro-cracks, while the surface leveling layer levels the surface and enhances the overall integrity of the floor slab system. The bottom structural layer provides leveling and auxiliary sound insulation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the floor sound insulation and thermal insulation system provided in Embodiment 1 of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the autoclaved aerated concrete functional layer provided in Embodiment 1 of this utility model.

[0018] Icons: 1-Bottom structural layer, 2-Autoclaved aerated concrete functional layer, 3-Interface reinforcement layer, 4-Surface leveling layer, 5-Nano-level heat insulation coating, 6-Sound insulation elastic pad, 21-Autoclaved aerated concrete precast slab, 211-Autoclaved aerated concrete layer, 212-Sound absorbing resin layer, 213-Polyester fiber layer, 214-Mineral wool layer, 215-Groove. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] 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 claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0024] Example 1

[0025] like Figures 1-2As shown, this embodiment provides a floor slab sound insulation and thermal insulation system, which includes, from bottom to top, a bottom structural layer 1, an autoclaved aerated concrete (AAC) functional layer 2, an interface reinforcement layer 3, and a surface leveling layer 4; the AAC functional layer 2 is composed of an AAC precast slab 21, which includes an AAC layer 211, a sound-absorbing resin layer 212, a polyester fiber layer 213, and a mineral wool layer 214.

[0026] Autoclaved aerated concrete (AAC) can improve the impact sound insulation of the floor slab. The gradient structure combined with sound-absorbing resin 212, polyester fiber 213, and mineral wool 214 can block the sound wave transmission path, enhance the absorption effect of sound waves of different frequencies, and prevent interlayer separation from affecting the sound insulation effect of the floor slab. The interface reinforcement layer 3 can enhance interlayer bonding and seal microcracks, while the surface leveling layer 4 plays a role in leveling and enhancing the overall integrity of the floor slab system. The bottom structural layer 1 plays a role in leveling and auxiliary sound insulation.

[0027] In this embodiment, the sound-absorbing resin 212 absorbs high-frequency noise (such as human voice), the polyester fiber 213 absorbs mid-frequency noise (such as impact sound), and the mineral wool 214 absorbs low-frequency noise (such as footsteps). The combination of each layer achieves full-frequency sound insulation, significantly improving the sound insulation effect of the floor.

[0028] In this embodiment, a groove 215 is formed on the surface of the autoclaved aerated concrete precast slab, and a sound-insulating elastic pad 6 is disposed in the groove 215. The groove 215 and the sound-insulating elastic pad 6 form a "sound bridge break point", which suppresses solid-borne sound transmission and further improves the sound insulation effect.

[0029] In this embodiment, the sound-insulating elastic pad 6 is a rubber sound-insulating pad, a polyurethane foam sound-insulating pad, or a felt sound-insulating pad.

[0030] In this embodiment, the bottom structural layer 1 and the autoclaved aerated concrete functional layer 2 are connected by pre-embedded tensioned steel strands. This connection enhances the shear strength of the floor slab, meeting the load-bearing requirements of large-span (≥6m) floor slabs, while simultaneously reducing the amount of traditional steel trusses and lowering the self-weight of the sound insulation and thermal insulation system. During construction, the tensioned steel strands are first pre-embedded in the bottom structural layer 1.

[0031] In this embodiment, the bottom structural layer 1 is a concrete layer, and a two-way steel mesh is provided within the concrete layer. The bottom structural layer 1 serves as the load-bearing main body, and the combination of concrete and the two-way steel mesh enhances the mechanical strength of the sound insulation system.

[0032] In this embodiment, the interface reinforcement layer 3 is a polymer cement mortar layer, and the surface of the polymer cement mortar layer is coated with a nano-level heat insulation coating 5. The polymer cement mortar layer and the nano-level heat insulation coating 5 form a dual heat insulation mechanism of "reflection + barrier", which improves the overall heat transfer coefficient of the floor slab.

[0033] In this embodiment, the surface leveling layer 4 is a lightweight mortar layer, and an alkali-resistant glass fiber mesh is provided within the lightweight mortar layer. The use of the alkali-resistant glass fiber mesh can improve crack resistance.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A floor sound and thermal insulation system, characterized by: From bottom to top, it includes a bottom structural layer, an autoclaved aerated concrete (AAC) functional layer, an interface reinforcement layer, and a surface leveling layer; the AAC functional layer is composed of precast AAC slabs, and the precast AAC slabs include an AAC layer, a sound-absorbing resin layer, a polyester fiber layer, and a mineral wool layer.

2. The floor sound insulation and thermal insulation system according to claim 1, characterized in that, The surface of the autoclaved aerated concrete precast slab is provided with grooves, and sound-insulating elastic pads are provided in the grooves.

3. The floor sound insulation and thermal insulation system according to claim 2, characterized in that, The sound-insulating elastic pad is a rubber sound-insulating pad, a polyurethane foam sound-insulating pad, or a felt sound-insulating pad.

4. The floor sound insulation and thermal insulation system according to claim 1, characterized in that, The bottom structural layer and the autoclaved aerated concrete functional layer are connected by pre-embedded tensioned steel strands.

5. The floor slab sound insulation and thermal insulation system according to claim 1, characterized in that, The bottom structural layer is a concrete layer, and a two-way steel mesh is installed inside the concrete layer.

6. The floor sound insulation and thermal insulation system according to claim 1, characterized in that, The interface reinforcement layer is a polymer cement mortar layer, and the surface of the polymer cement mortar layer is coated with a nano-scale heat insulation coating.

7. The floor sound insulation and thermal insulation system according to claim 1, characterized in that, The surface leveling layer is a lightweight mortar layer, and alkali-resistant glass fiber mesh is provided in the lightweight mortar layer.

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