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A kind of preparation method of sound-absorbing brick

A sound-absorbing brick and sound-absorbing technology, used in manufacturing tools, noise absorbing devices, ceramic molding machines, etc., can solve the problems of low pressure resistance of the pressure-bearing part, cannot be stacked to a higher level, and affect the service life, etc. Achieve the effect of being conducive to smooth demoulding, strong repeatability and prolonging service life

Active Publication Date: 2017-07-28
合肥中驰声屏障技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Non-metallic sound barriers can be formed by stacking sound-absorbing bricks. The sound-absorbing bricks generally include a pressure-bearing part and a sound-absorbing part. The pressure-bearing part is used to form a supporting wall, and the sound-absorbing part is used to absorb and isolate noise. However, the existing technology The pressure resistance of the pressure-bearing part of the sound-absorbing bricks described in is not high, and it cannot be stacked to a higher height according to requirements
In addition, the contact area between the pressure-bearing part and the sound-absorbing part is small, and the bonding between the two is not firm. Over time, in the environment of vibration and noise, the sound-absorbing part and the pressure-bearing part are easy to separate, which affects the service life

Method used

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  • A kind of preparation method of sound-absorbing brick
  • A kind of preparation method of sound-absorbing brick
  • A kind of preparation method of sound-absorbing brick

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A method for preparing the above-mentioned sound-absorbing bricks, comprising the following steps:

[0045] 1) Raw material preparation, take the following raw materials in parts by weight:

[0046] Pressure-bearing part 3: Cement: 40

[0047] Yellow Sand: 50

[0048] Latex powder: 8

[0049] Superplasticizer: 2

[0050] Water: Appropriate amount

[0051] Acoustic part 4: Perlite: 30

[0052] Cement: 68

[0053] Hydrophobic agent: 1

[0054] Fiber: 1

[0055] Water: Appropriate amount

[0056] The cement model is ordinary portland cement, slag portland cement, etc.; the yellow sand is preferably washed and dried sand with a particle size of 40 mesh to 70 mesh; the latex powder is polyvinyl acetate, acrylic , styrene-butadiene latex rubber powder and one or more of them; the water reducer is one or more of naphthalene sulfonate formaldehyde condensate, melamine series, and polyhydroxycarboxylic acid series The perlite is expanded perlite with a particle size of 3...

Embodiment 2

[0065] The preparation method of the above-mentioned sound-absorbing brick provided in this embodiment comprises the following steps:

[0066] 1) Raw material preparation, take the following raw materials in the weight ratio:

[0067] Pressure-bearing part 3: Cement: 30

[0068] Yellow sand: 60

[0069] Latex powder: 13

[0070] Water reducer: 1

[0071] Water: Appropriate amount

[0072] Acoustic part 4: Perlite: 40

[0073] Cement: 40

[0074] Hydrophobic agent: 0.5

[0075] Fiber: 3

[0076] Water: Appropriate amount

[0077] Raw material specifications and other steps are the same as in Example 1, and will not be repeated here.

Embodiment 3

[0079] The preparation method of the above-mentioned sound-absorbing brick provided in this embodiment comprises the following steps:

[0080] 1) Raw material preparation, take the following raw materials in the weight ratio:

[0081] Pressure-bearing part 3: Cement: 50

[0082] Yellow sand: 40

[0083] Latex powder: 7

[0084] Superplasticizer: 3

[0085] Water: Appropriate amount

[0086] Acoustic part 4: Perlite: 20

[0087] Cement: 55

[0088] Hydrophobic agent: 3

[0089] Fiber: 1

[0090] Water: Appropriate amount

[0091] Raw material specifications and other steps are the same as in Example 1, and will not be repeated here.

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Abstract

The invention provides a sound absorption brick with a novel structure. The sound absorption brick comprises a pressure-bearing part (3) and a sound absorption part (4) which is matched with the pressure-bearing part (3) positioned at a noise side, wherein the pressure-bearing part (3) is a U-shaped structure or an E-shaped structure with opening facing upwards; the sound absorption part (4) is a sound absorption structure which is filled in a cavity of the pressure-bearing part (3) and formed with a sound absorption structure with a certain thickness at the noise side; and at least one stop structure is arranged on a part, which is in contact with the sound absorption part, on the pressure-bearing part. The invention further provides a special mould and a preparation method for the sound absorption brick. The preparation method is simple to operate and liable to industrial production.

Description

technical field [0001] The invention relates to a pavement facility, in particular to a preparation method of a sound-absorbing brick for making a sound barrier for isolating or reducing noise. Background technique [0002] Sound barriers are devices installed on both sides of roads, railways or bridges to isolate or absorb noise. When a high-speed train passes by, the noise, vibration and wind speed caused by the speed are very large, which poses certain challenges to the sound absorption effect and mechanical strength of the sound barriers located on both sides of the vehicle. There are two types of existing sound barriers: metal sound barriers and non-metal sound barriers. Due to the high cost of metal sound barriers, some road sections tend to use relatively cheap non-metal sound barriers. [0003] Non-metallic sound barriers can be formed by stacking sound-absorbing bricks. The sound-absorbing bricks generally include a pressure-bearing part and a sound-absorbing part....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01F8/00C04B28/04C04B28/08B28B7/00B28B1/08
Inventor 彭翰泽马振华孔令环宋丰斌袁地保
Owner 合肥中驰声屏障技术有限公司