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Track bed sound-absorbing plate and preparation method thereof

A technology of sound-absorbing panels and ballast beds, which is applied to tracks, roads, ceramic products, etc., can solve problems such as unsatisfactory noise reduction effect, achieve good water permeability, ensure sound absorption effect, and good sound absorption effect.

Pending Publication Date: 2018-05-11
湖北宇声环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of noise reduction product is a sound-absorbing panel with a wedge, which mainly uses the wedge structure for sound absorption. Although it also has a certain noise reduction effect, the noise reduction effect is not ideal

Method used

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  • Track bed sound-absorbing plate and preparation method thereof
  • Track bed sound-absorbing plate and preparation method thereof
  • Track bed sound-absorbing plate and preparation method thereof

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0029] Such as Figures 1 to 3 As shown, a track bed sound-absorbing panel includes a main body 1 and several wedges 2 arranged on the top surface of the main body 1 and distributed along the longitudinal direction. The main body and the wedges 2 are integrally pressed and formed, and the height of the wedges 2 is 4cm. The thickness of the entire sound-absorbing panel is 175mm. The research shows that the sound-absorbing effect and material consumption of the 175mm-thick sound-absorbing panel are more reasonable, that is, it meets the sound-absorbing standard, and the cost is lower.

[0030] The material of the sound-absorbing board mainly includes ceramsite aggregate and cement gelling, and the ash-set ratio is 0.3-0.5. Because the most appropriate ratio is adjusted according to different materials, more cement, higher strength, lower porosity, poo...

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Abstract

The invention discloses a track bed sound-absorbing plate and a preparation method thereof. The track bed sound-absorbing plate comprises a main body and a plurality of wedges arranged on the top surface of the main body along a longitudinal direction. The sound-absorbing plate is prepared from ceramsite aggregates and a cement cementitious material and has an ash collection ratio of 0.3-0.5. Theceramsite aggregate comprises first ceramsites with diameters of 1-5mm and second ceramsites with diameters of 5-10mm. The top surface of the sound-absorbing plate is provided with the convex and concave wedges. Through the principle of gradual transition of sound waves, the effect of high-frequency sound absorption is improved, air pressure waves are reduced, acoustic pressure is relieved, and the influence caused by pressure waves on vehicles is reduced. The porous sound-absorbing plate prepared from the ceramsites with different diameters has a honeycomb continuous pore structure, producesthe wide-band response to sound waves, guarantees the sound-absorbing effect and high strength and durability of the product, has good water permeability, can smoothly drain away accumulated water andproduces good sound-absorbing effects through matching with the internal microporous structure of the ceramsite.

Description

technical field [0001] The invention relates to rail transit equipment noise reduction technology, in particular to a track bed sound-absorbing panel and a preparation method thereof. Background technique [0002] With the expansion of human life, in modern cities all over the world, urban traffic tracks inevitably pass through densely populated areas and important buildings. The vibration and noise generated by trains seriously affect people's normal work and life. Therefore, trying to reduce the vibration and noise of the urban track, and to improve the coordination with nature and the living environment has become a problem that people generally pay attention to. The existing track sound insulation measures are mainly to build sound barriers on both sides of the track. Due to its principle of sound source, the effect is not good, and it affects the appearance. Therefore, it is necessary to develop a noise reduction product specially used near the wheel and rail. For exam...

Claims

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Application Information

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IPC IPC(8): C04B38/08C04B28/00C04B18/02E01B19/00
CPCE01B19/003C04B18/027C04B28/00C04B38/08C04B2201/20C04B2201/50C04B38/0006C04B38/0041C04B38/0067C04B2103/54C04B22/002C04B24/24C04B18/08C04B14/108
Inventor 杨博徐卫东张传胜孙茂刚刘丹
Owner 湖北宇声环保科技有限公司
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