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Environmental-protection acoustical building panel and production method thereof

A building board and sound absorption technology, which is applied to building components, building structure, sound insulation and other directions, can solve the problems of poor compression resistance, complex preparation method, poor corrosion resistance, etc., and achieves good sound absorption effect and simple preparation process. , The effect of double-layer structure is strong

Inactive Publication Date: 2017-06-27
河南永泽环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Natural fibrous organic sound-absorbing materials such as cotton, hemp, and felt have low cost and wide sound-absorbing frequency, but their corrosion resistance is poor; inorganic porous materials such as glass wool have good anti-corrosion and sound absorption properties. However, its compression resistance is poor and it is easy to break; later, porous sound-absorbing materials represented by ceramsite performed better in compression resistance, but most of them are fired from natural resources such as clay or shale, which is easy to break. Causes overexploitation of natural resources and damages the environment
[0004] The Chinese patent document of authorized announcement number CN 104478053 A (application number 201010502464.4) discloses a preparation method of a fly ash-based sound-absorbing material, which is used as a sound-absorbing and sound-insulating panel for high-speed railways, expressways, subways, building walls, etc. The method disclosed in this patent requires heat treatment and subsequent processing in a muffle furnace at 1100°C, and the preparation method is complicated

Method used

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  • Environmental-protection acoustical building panel and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An environmentally friendly sound-absorbing building board, the board is a double-layer porous structure composed of a surface material layer and a bottom material layer, and the surface material layer is made of recycled fine aggregate from construction waste, coal gangue, cement, lime and sludge Prepared; the base material layer is prepared from construction waste recycled fine aggregate, cement and sludge; the thickness ratio of the base material layer and the surface material layer is 1.25:1, and the mass ratio of the two is 4:1.

[0024] Wherein, the parts by weight of each raw material of the surface material layer are: 30 parts of cement, 25 parts of sludge, 23 parts of coal gangue, 15 parts of recycled fine aggregate from construction waste, and 7 parts of lime. In the substrate layer, the proportions by weight of each raw material are: 35 parts of recycled fine aggregate from construction waste, 40 parts of cement and 25 parts of sludge.

[0025] The regenerat...

Embodiment 2

[0036] An environment-friendly sound-absorbing building material and its preparation method are the same as in Example 1, except that the parts by weight of the raw materials of the surface material layer are: 35 parts of cement, 25 parts of sludge, 22 parts of coal gangue, recycled construction waste 10 parts of fine aggregate, 8 parts of lime; in the substrate layer, the weight ratio of each raw material is: 45 parts of recycled fine aggregate from construction waste, 35 parts of cement and 20 parts of sludge. The thickness ratio of the base material layer and the surface material layer is 1.7:1, and the mass ratio of the base material layer mixture to the surface material layer mixture is 3:1.

Embodiment 3

[0038] An environmentally friendly sound-absorbing building material and its preparation method are the same as in Example 1. The difference from Example 1 is that the parts by weight of the raw materials of the surface material layer are: 25 parts of cement, 28 parts of sludge, and 24 parts of coal gangue 18 parts, 18 parts of construction waste regenerated fine aggregate, 5 parts of lime; In the described substrate layer, the weight ratio of each raw material is: 35 parts of construction waste regenerated fine aggregate, 30 parts of cement and 35 parts of sludge substrate layer and The thickness ratio of the surface material layer is 2.5:1, and the mass ratio of the mixture of the bottom material layer and the mixture of the surface material layer is 3.5:1.

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Abstract

Disclosed is an environment-friendly acoustical building panel which is of a double-layer porous structure formed by a surface material layer and a substrate layer. The surface material layer is made from construction waste regeneration fine aggregate, coal gangue, cement, lime and slurry; the substrate layer is made from the construction waste regeneration fine aggregate, the cement and the slurry. The environment-friendly acoustical building panel with solid waste of the slurry, the coal gangue and the like as main materials is of the porous structure, even pores are arranged in the surface and the interior of the material, and the acoustical effect of the material is higher when porosity is higher.

Description

technical field [0001] The invention belongs to the field of resource recycling, and in particular relates to an environmental-friendly sound-absorbing building board and a preparation method thereof. Background technique [0002] With the rapid development of modern industrial production and the seriousness of environmental pollution problems, it has become more and more important and urgent to implement effective control of environmental pollution. Noise pollution, water pollution and air pollution are the most important factors affecting environmental problems. It is considered to be the three major pollutions in the world today, and for the problem of noise pollution, the current main solution is to use sound-absorbing materials for sound-absorbing and noise-reducing treatment. [0003] Natural fibrous organic sound-absorbing materials such as cotton, hemp, and felt have low cost and wide sound-absorbing frequency, but their corrosion resistance is poor; inorganic porous...

Claims

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Application Information

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IPC IPC(8): C04B28/00E04B1/86C04B111/52
CPCC04B28/00C04B2111/52E04B1/86E04B2001/8461C04B18/0418C04B18/12C04B18/16C04B22/064
Inventor 周素莹王彦堂邢传宏
Owner 河南永泽环境科技有限公司
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