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Novel structural sound-absorption brick, special mold and preparation method

A new structure and technology of sound-absorbing bricks, applied in the field of sound-absorbing bricks, can solve the problems of low compression resistance of the pressure-bearing part, traffic accidents of the sound-absorbing part, and inability to stack up to a higher level, so as to prevent mutual separation and high production efficiency. , the effect of improving stability

Inactive Publication Date: 2015-09-16
SHAZC GRP CORP LTD
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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. 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 not only affects the use Life expectancy, and the scattered sound-absorbing parts fall to the road surface and easily cause traffic accidents

Method used

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  • Novel structural sound-absorption brick, special mold and preparation method
  • Novel structural sound-absorption brick, special mold and preparation method
  • Novel structural sound-absorption brick, special mold and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A method for preparing a sound-absorbing brick of the above-mentioned novel structure, which comprises the following steps:

[0057] 1) Raw material preparation, take the following raw materials in parts by weight:

[0058] Pressure-bearing part 4: Cement: 40

[0059] Yellow Sand: 50

[0060] Latex powder: 8

[0061] Superplasticizer: 2

[0062] Water: Appropriate amount

[0063] Acoustic part 5: Perlite: 30

[0064] Cement: 68

[0065] Hydrophobic agent: 1

[0066] Fiber: 1

[0067] Water: Appropriate amount

[0068] The cement model can be selected as 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 com...

Embodiment 2

[0077] The preparation method of the sound-absorbing brick of the above-mentioned novel structure provided in this embodiment comprises the following steps:

[0078] 1) Raw material preparation, take the following raw materials by weight:

[0079] Pressure-bearing part 4: Cement: 30

[0080] Yellow sand: 60

[0081] Latex powder: 13

[0082] Water reducer: 1

[0083] Water: Appropriate amount

[0084] Acoustic part 5: Perlite: 40

[0085] Cement: 40

[0086] Hydrophobic agent: 0.5

[0087] Fiber: 3

[0088] Water: Appropriate amount

[0089] Raw material specifications and other steps are the same as in Example 1, and will not be repeated here.

Embodiment 3

[0091] The preparation method of the sound-absorbing brick of the above-mentioned novel structure provided in this embodiment comprises the following steps:

[0092] 1) Raw material preparation, take the following raw materials by weight:

[0093] Pressure-bearing part 4: Cement: 50

[0094] Yellow sand: 40

[0095] Latex powder: 7

[0096] Superplasticizer: 3

[0097] Water: Appropriate amount

[0098] Acoustic part 5: Perlite: 20

[0099] Cement: 55

[0100] Hydrophobic agent: 3

[0101] Fiber: 1

[0102] Water: Appropriate amount

[0103] 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 novel structural sound-absorption brick. The novel structural sound-absorption brick comprises a pressure-bearing part (4) and a sound-absorption part (5) which faces to a noise side and is matched with the pressure-bearing part (4), wherein the pressure-bearing part (4) adopts a hollow structure, openings are formed in more than one surface of the pressure-bearing part (4), the sound-absorption part (5) is stuffed to a gap of the pressure-bearing part (4) and forms a sound-absorption structure with a sound-absorption surface with a certain thickness on the noise side. The invention further provides a special mold and a preparation method for preparing the novel structural sound-absorption brick. The mold is simple in structure and high in production efficiency. The preparation method is high in maneuverability, rich in raw material sources and easy to perform industrialized production.

Description

technical field [0001] The invention relates to a pavement facility, in particular to a sound-absorbing brick with a new structure for making a sound barrier, a special mold and a preparation method 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-be...

Claims

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Application Information

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Patent Type & Authority Applications(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 SHAZC GRP CORP LTD
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