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Sound barrier unit plate and preparation method thereof as well as sound barrier

A sound barrier and unit plate technology, which is applied in ceramic products, other household appliances, applications, etc., can solve the problems of high cost, poor sound absorption performance, and ineffective sound insulation, etc., and achieve high-strength and durable sound absorption performance and excellent sound absorption performance Effect

Inactive Publication Date: 2018-07-13
湖北正茂新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the metal sound barrier is mainly a structure filled with sound-absorbing cotton in the steel plate interlayer, which is expensive and has poor sound absorption performance. The average sound insulation is 36dB, which cannot effectively sound-proof

Method used

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  • Sound barrier unit plate and preparation method thereof as well as sound barrier
  • Sound barrier unit plate and preparation method thereof as well as sound barrier
  • Sound barrier unit plate and preparation method thereof as well as sound barrier

Examples

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preparation example Construction

[0035] In the present invention, the preparation method of described active concrete preferably comprises the steps:

[0036] (1) mixing quartz sand, steel fiber and polyvinyl alcohol fiber to obtain the first mixture; mixing cement, silica fume and fly ash to obtain the second mixture; mixing water and water reducer to obtain the third mixture; The preparation of the first mixture, the second mixture and the third mixture is not limited in time order;

[0037] (2) Dry mixing the first mixture and the second mixture to obtain a dry mixing mixture;

[0038] (3) wet mixing the dry mixing mixture and the third mixture to obtain high-strength and high-durability reactive concrete.

[0039] In the present invention, after the raw materials are grouped and mixed, dry mixing is performed first and then wet mixing is performed, so as to ensure that the materials are mixed evenly without agglomeration.

[0040] In the present invention, the speed of the dry mixing and wet mixing is i...

Embodiment 1

[0081] 1. Preparation of active concrete

[0082] (1) In parts by mass, 953 parts of quartz sand, 156.7 parts of steel fiber and 6.7 parts of polyvinyl alcohol fiber are mixed to obtain the first mixture; 733 parts of cement, 250 parts of silica fume and 83 parts of fly ash are mixed to obtain The second mixture; 183 parts of water and 50 parts of water reducer are mixed to obtain the third mixture; the preparation of the first mixture, the second mixture and the third mixture has no time order limitation;

[0083] (2) Dry mixing the first mixture and the second mixture for 5 minutes at a stirring speed of 30 r / min to obtain a dry mixing mixture;

[0084] (3) The dry-mixed mixture and the third mixture were wet-mixed for 4 minutes at a stirring speed of 30 r / min to obtain active concrete.

[0085] 2. Preparation of porous sound-absorbing concrete

[0086] In terms of parts by mass, weigh 953 parts of porous ceramsite, 156.7 parts of steel fiber, 6.7 parts of polyvinyl alcoho...

Embodiment 2

[0107] 1. Preparation of active concrete

[0108] (1) In parts by mass, 1000 parts of quartz sand, 120 parts of steel fiber and 9 parts of polyvinyl alcohol fiber are mixed to obtain the first mixture; 780 parts of cement, 200 parts of silica fume and 100 parts of fly ash are mixed to obtain The second mixture; 160 parts of water and 70 parts of water reducer are mixed to obtain the third mixture; the preparation of the first mixture, the second mixture and the third mixture has no time order limitation;

[0109] (2) Dry mixing the first mixture and the second mixture for 5 minutes at a stirring speed of 30 r / min to obtain a dry mixing mixture;

[0110] (3) The dry-mixed mixture and the third mixture were wet-mixed for 4 minutes at a stirring speed of 30 r / min to obtain active concrete.

[0111] 2. Preparation of porous sound-absorbing concrete

[0112] According to parts by mass, weigh 1100 parts of porous ceramsite, 180 parts of steel fiber, 12 parts of polyvinyl alcohol f...

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Abstract

The invention provides a sound barrier unit plate. The sound barrier unit plate comprises a main body plate layer and a sound absorption plate layer, wherein the main body plate layer and the sound absorption plate layer are integrally connected; the main body plate layer is prepared from active concrete; the sound absorption plate layer is prepared from porous sound absorption concrete. The soundbarrier unit plate provided by the invention has excellent performance of high strength and durability, the compressive strength is 155 to 162MPa, the bending strength is 23 to 25MPa, the anti-seepage grade reaches P10 and the anti-freezing grade reaches F600; the chloride ion penetration resistance of the sound barrier unit plate is measured through an electric flux and the electric conduction amount is less than or equal to 40C; the average sound insulation amount of a sound barrier prepared from the sound barrier unit plate provided by the invention is 50 to 60dB; the sound barrier unit plate provided by the invention has excellent sound absorption performance and good sound insulation effect.

Description

technical field [0001] The invention relates to the technical field of sound barriers, in particular to a sound barrier unit plate, a preparation method thereof, and a sound barrier. Background technique [0002] The sound barrier is a facility inserted between the sound source and the receiver to make the sound wave propagation have a significant additional attenuation, thereby reducing the impact of noise in a certain area where the receiver is located. There are generally three types of sound barriers, one is traffic noise barriers, the other is equipment noise attenuation noise barriers, and the third is industrial factory boundary noise barriers. [0003] With the rapid development of high-speed railways in my country, high-speed trains will generate a lot of noise pollution when passing through residential areas, seriously affecting the normal work and rest of residents; when passing through nature reserves, the noise generated will startle animals in nature and disrup...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B38/08E01F8/00
CPCC04B28/04C04B38/08C04B2111/00612C04B2201/50E01F8/0005C04B14/06C04B18/146C04B18/08C04B16/0641C04B14/48C04B24/24C04B22/002C04B18/027
Inventor 管正兵罗欣柳鹏
Owner 湖北正茂新材料科技股份有限公司
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