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Building porous brick with efficient sound absorption function and preparation method thereof

A technology of sound-absorbing function and porous bricks, applied in the field of sound-absorbing building materials, can solve the problem of low sound-absorbing coefficient and achieve the effect of improving the sound-absorbing effect

Inactive Publication Date: 2020-08-07
成都市水泷头化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the thickness of the brick is constant, the flow resistance is too large, which is not conducive to the sound wave entering the material, resulting in a low sound absorption coefficient; the flow resistance is too small, although it is beneficial for the sound wave to enter the material, but when the sound wave passes through the material, the distance between the sound wave and the surface of the channel Less contact, less energy consumed due to friction, viscous force, resulting in low sound absorption coefficient

Method used

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  • Building porous brick with efficient sound absorption function and preparation method thereof
  • Building porous brick with efficient sound absorption function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Using computer modeling, polyethylene resin is used as raw material, and the resin is processed into a three-dimensional plastic mesh in the shape of a cube through 3D printing; the three-dimensional plastic mesh is composed of plastic filaments with thick ends, thin middle, and gradually changing diameters; The end diameter of the plastic wire is 3.5mm, and the middle diameter is 1.5mm; the size of the plastic net is 240mm×115mm×180mm;

[0021] (2) Take five templates (dimensions are 240mm×180mm, 240mm×115mm, 240mm×115mm, 115mm×180mm, 115mm×180mm), fit closely with the five surfaces of the plastic mesh cube respectively, and fix the templates to each other , get the mold;

[0022] (3) Pass the cement, fly ash, expansive soil and borax through a 200-mesh sieve respectively, then mix them in proportion, and add an appropriate amount of water to obtain a uniform mixture, and then add the mixture to the mold in stages, each feeding depth It is 1cm, and the next time i...

Embodiment 2

[0026] (1) Using computer modeling, polystyrene resin is used as raw material, and the resin is processed into a three-dimensional plastic mesh in the shape of a cube through 3D printing; the three-dimensional plastic mesh is composed of plastic filaments with thick ends, thin middle, and gradually changing diameters; The end diameter of the plastic wire is 3mm, and the middle diameter is 1mm; the size of the plastic mesh is 240mm×115mm×180mm;

[0027] (2) Take five templates (dimensions are 240mm×180mm, 240mm×115mm, 240mm×115mm, 115mm×180mm, 115mm×180mm), fit closely with the five surfaces of the plastic mesh cube respectively, and fix the templates to each other , get the mold;

[0028] (3) Pass the cement, fly ash, expansive soil and borax through a 200-mesh sieve respectively, then mix them in proportion, and add an appropriate amount of water to obtain a uniform mixture, and then add the mixture to the mold in stages, each feeding depth It is 1cm, and the next time is ad...

Embodiment 3

[0032] (1) Using computer modeling, polystyrene resin is used as raw material, and the resin is processed into a three-dimensional plastic mesh in the shape of a cube through 3D printing; the three-dimensional plastic mesh is composed of plastic filaments with thick ends, thin middle, and gradually changing diameters; The end diameter of the plastic wire is 3mm, and the middle diameter is 1.5mm; the size of the plastic net is 240mm×115mm×180mm;

[0033] (2) Take five templates (dimensions are 240mm×180mm, 240mm×115mm, 240mm×115mm, 115mm×180mm, 115mm×180mm), fit closely with the five surfaces of the plastic mesh cube respectively, and fix the templates to each other , get the mold;

[0034] (3) Pass the cement, fly ash, expansive soil and borax through a 200-mesh sieve respectively, then mix them in proportion, and add an appropriate amount of water to obtain a uniform mixture, and then add the mixture to the mold in stages, each feeding depth After vibrating and compacting, t...

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Abstract

The invention relates to the technical field of sound-absorbing building materials, and provides a building porous brick with an efficient sound-absorbing function and a preparation method thereof. Compared with a traditional method, the interior of the prepared porous brick has a three-dimensional pore channel structure, and the pore diameter is gradually reduced from outside to inside. The apertures are optimized, namely, the surface aperture is 3-3.5 mm, the middle aperture is 1-1.5 mm, and the apertures are gradually reduced from outside to inside, so that sound waves easily enter the porous brick and can generate more contact with the surface of a pore channel to consume more energy, and the sound absorption effect of the porous brick is improved.

Description

technical field [0001] The invention belongs to the technical field of sound-absorbing building materials, and provides a building porous brick with high-efficiency sound-absorbing function and a preparation method. Background technique [0002] The harm of noise is various, such as interfering with people's language communication, affecting normal sleep, hearing loss, damage to precision instruments, damage to buildings, etc. There are three ways to control noise: control the sound source, control the transmission process, and control the receiver. At present, the use of sound-absorbing materials to control the propagation process is the most commonly used method in noise control. [0003] Porous material is the most widely used sound-absorbing material at present. Its sound-absorbing principle is: when the sound wave touches the outer surface of the material or the inner wall of the hole, it will trigger the airflow vibration in the hole. During the continuous collision ...

Claims

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Application Information

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IPC IPC(8): C04B33/135C04B38/00B29C64/10B33Y10/00B33Y80/00
CPCB33Y10/00B33Y80/00B29C64/10C04B33/1352C04B38/061C04B2235/3201C04B2235/3409C04B2235/96C04B38/0051Y02P40/60
Inventor 蔡杰
Owner 成都市水泷头化工科技有限公司
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