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Light high-efficiency sound absorption and insulation module and preparation method and application thereof

A sound-absorbing, high-efficiency technology, applied in the field of sound-absorbing and noise-reducing, can solve the problems of poor sound insulation performance of walls, many processes, and decreased sound insulation performance of walls, so as to improve earthquake resistance, simple construction process, and fireproof performance good effect

Active Publication Date: 2014-09-03
河北惠康恒达环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing light-weight and high-sound insulation building structure is mainly formed by laying light steel keels, sound-absorbing materials, gypsum boards or other sound insulation materials on site, that is, welding the light steel keel horizontally with the wall or the factory building column to form sandalwood strips. , and then the light steel keel is welded longitudinally to form a skeleton, gypsum board or other sound insulation materials are laid on the keel one by one, and the gypsum board or other sound insulation materials are fixed on the other side of the keel after filling the sound absorbing material, and finally in the The outer corrugated board of the factory building is used to form a sound-absorbing structure. This structure mainly has the following disadvantages: (1) The gap between the gypsum boards is inevitable, the sealing is poor, and there is sound leakage, which leads to the entire wall. The sound insulation performance of the body is greatly reduced; (2) The internal and external sound insulation bodies are connected by light steel keels, so there is a "sound bridge", and the sound insulation performance of the entire wall is poor; (3) Due to the insufficient rigidity of the light steel keel itself , when the cross-sectional area of ​​the wall is greater than 30 square meters, the rigidity of the sound-absorbing and insulating wall must be guaranteed by means of auxiliary beams, that is, relying on sandalwood bars, thereby increasing costs; The dust spillage of sound-absorbing materials will cause secondary pollution to the surrounding environment. The labor intensity, long cycle, low efficiency and high cost of laying gypsum boards are high; (5) an additional layer needs to be laid on the wall of the building, and at the same time Reduces the actual usable area of ​​the building and increases costs
[0003] Publication No. CN102828564A Chinese Invention Patent Application discloses the sound insulation module and the sound absorption and insulation composite structure with the built-in truss structure of the sound insulation module. The cost is reduced, but the sound insulation performance cannot fully meet the actual needs, and the composite structure disclosed in the invention also needs to add another layer on the wall of the building, which reduces the actual usable area of ​​​​the building and increases cost

Method used

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  • Light high-efficiency sound absorption and insulation module and preparation method and application thereof
  • Light high-efficiency sound absorption and insulation module and preparation method and application thereof
  • Light high-efficiency sound absorption and insulation module and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Example 1. Preparation of lightweight and high-efficiency sound-absorbing and insulating module 1 and its performance data

[0079] 1) Select an 80mm thick aerated concrete block (600×250×80mm), select a relatively flat ground, and use cement mortar to build the 80mm aerated concrete block according to the construction requirements, and the surface is required to be smooth;

[0080] 2) Use air nails to place 30mm thick BASF cotton on the surface of the built aerated concrete block, with a surface density of about 0.26kg / m 2 Fixed on the surface of the cutting block, the distance between the air nails is 400mm;

[0081] 3) On the surface of the BASF cotton, set a layer of special alkali-resistant mesh cloth for the outer wall, and fix the special alkali-resistant mesh cloth for the outer wall with air nails, and the distance between the air nails is 100mm;

[0082] 4) Use a special container to blend the fine sand with special inorganic high-temperature glue, and use ...

Embodiment 2

[0092] Example 2. Preparation of lightweight and high-efficiency sound-absorbing and insulating module 2 and its performance data

[0093] The preparation steps are the same as in Example 1; the specific composition of the module is described as follows:

[0094] The sound receiving surface of the wall is sprayed with sandstone, coating thickness: 2mm; density of sandstone sprayed surface is about 3.2kg / m 2 ;Basf surface thickness: 0mm, surface density about 0.26kg / m 2 ;Aerated concrete block (600×250×100mm) 100mm thick; the thickness of cement mortar in the cement mortar plastering layer is 15mm, and the bulk density is 1800kg / m 3 ;Size and installation method: area 4.2m×2.4m, 0.08m in total 2 , The floor of the tiled reverberation room is surrounded by solid wood baffles.

[0095] The performance data of the lightweight and efficient sound-absorbing and insulating module 2 are as follows:

[0096] Frequency / Hz

[0097] 800

Embodiment 3

[0098] Example 3. Preparation of lightweight and efficient sound-absorbing and insulating module 3 and its performance data

[0099] The preparation steps are the same as in Example 1; the specific composition of the module is described as follows:

[0100] The sound receiving surface of the wall is sprayed with sandstone, coating thickness: 4mm; density of sandstone sprayed surface is about 6.4kg / m 2 ;Basf cotton thickness: 30mm, surface density about 0.26kg / m 2;Aerated concrete block (600×250×90mm) 90mm thick; the thickness of cement mortar in the cement mortar plastering layer is 20mm, and the bulk density is 2000kg / m 3 ;Size and installation method: area 4.2m×2.4m, total 10.08m 2 , The floor of the tiled reverberation room is surrounded by solid wood baffles.

[0101] The performance data of the lightweight and efficient sound-absorbing and insulating module 3 is as follows:

[0102] Frequency / Hz

[0103] 1600

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Abstract

The invention relates to a light high-efficiency sound absorption and insulation module and a preparation method and application thereof and belongs to the technical field of sound absorption and insulation and noise reduction materials. The light high-efficiency sound absorption and insulation module comprises a cement mortar plaster layer, an aerated concrete block, a Basf cotton layer, an outer wall alkali-resistant special gridding cloth layer and a sandstone spraying layer, wherein the Basf cotton layer is clung to the surface of one side of the aerated concrete block; the cement mortar plaster layer is smeared on the surface of the other side of the aerated concrete block; the outer wall alkali-resistant special gridding cloth layer is fixed on the Basf cotton layer; the surface of the outer wall alkali-resistant special gridding cloth layer is coated with the sandstone spraying layer. According to repeated test and final test in the building environment detection center in Tsinghua University, the sound absorption and insulation module is obvious in sound absorption and insulation effect, and the product is low in production cost and wide in material source and has high applicability and good popularization effect.

Description

technical field [0001] The invention relates to a lightweight and high-efficiency sound-absorbing and insulating module, its preparation method and application, and belongs to the technical field of sound-absorbing and insulating. Background technique [0002] The building wall of lightweight and high-efficiency sound insulation modules is an important component to prevent noise pollution, and it is widely used in civil, commercial and industrial fields. The existing light-weight and high-sound insulation building structure is mainly formed by laying light steel keels, sound-absorbing materials, gypsum boards or other sound insulation materials on site, that is, welding the light steel keel horizontally with the wall or the factory building column to form sandalwood strips. , and then the light steel keel is welded longitudinally to form a skeleton, gypsum board or other sound insulation materials are laid on the keel one by one, and the gypsum board or other sound insulatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C1/41E04B1/88
Inventor 苗永康马世勇
Owner 河北惠康恒达环保科技有限公司