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Light weight, high-strength and environmentally-friendly type nonmetallic sound barrier

A sound barrier and environment-friendly technology, applied in construction, noise absorption devices, etc., can solve problems such as inorganic fibers and perlite sound-absorbing boards, and achieve controllable production quality, reduce installation labor intensity, mechanical Excellent performance and durability

Pending Publication Date: 2019-07-12
JIANGSU XINGUANG ENVIRONMENTAL PROTECTION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The strength of high-strength ceramsite sound-absorbing panels is relatively high, but since 2008, Beijing has banned the use of high-strength ceramsite as raw materials in construction projects; perlite sound-absorbing panels have defects of insufficient strength, and are rarely used at present. At present, non-metallic sound barriers widely used in high-speed rail and other fields are mainly non-metallic sound-absorbing panels with open holes on the surface. Like metal sound barriers, they use open-hole concrete as the overlay, and the interior is filled with mineral wool and rock. Cotton and other inorganic fiber materials
Compared with metal sound barriers, although it has the advantages of corrosion resistance and low cost, it cannot get rid of the defects of inorganic fibers

Method used

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  • Light weight, high-strength and environmentally-friendly type nonmetallic sound barrier
  • Light weight, high-strength and environmentally-friendly type nonmetallic sound barrier
  • Light weight, high-strength and environmentally-friendly type nonmetallic sound barrier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A light-weight, high-strength, environment-friendly non-metallic sound barrier, consisting of a sound-absorbing panel, a sound-insulating panel, and a fixing device; the fixing device is an H-shaped steel column, and a U-shaped groove is arranged in the H-shaped steel column. The limit block, the lower waist of the U-shaped groove is inserted between the web of the H-shaped steel column and the limit block, the upper opening is fixed with the web of the H-shaped steel column by bolts, and the H-shaped steel column is fixed on the edge of the bridge deck or road surface. Several microporous particle sound-absorbing panels and concrete sound-insulating panels are inserted between the columns to form a sound barrier. The contact parts between the sound-absorbing panel and the concrete sound-insulating panel, the H-shaped steel flange plate and the U-shaped groove are flexibly connected by rubber strips, and an air separation cavity is left between the microporous particle s...

Embodiment 2

[0054] It is basically the same as Example 1, except that the microporous particle sound-absorbing panel is equipped with a transverse reinforcing plate in the middle besides the reinforcing plate around it. The concrete sound insulation board and the microporous particle sound-absorbing panel have the same size. There is a rubber block in the middle to separate the concrete sound insulation board from the microporous particle sound absorption board. The contact part between the concrete sound insulation board and the microporous particle sound absorption board and the H-shaped steel flange plate is flexibly connected by a P-type rubber plate, and the sound absorption The distance between the board and the sound insulation board is 120mm.

[0055] The microporous particle sound-absorbing panel is made of 16 parts by weight of inorganic adhesive A, 80 parts of granular material, 0.5 part of water reducing agent, and 3.0 parts of water, and is poured with three layers of reinforc...

Embodiment 3

[0067] It is basically the same as Example 1, except that a sound-absorbing wedge structure is provided on the surface of the microporous particle sound-absorbing board, and the distance between the sound-absorbing board and the sound-insulating board is 100mm.

[0068] The microporous particle sound-absorbing panel is made of 20 parts by weight of inorganic adhesive A, 75 parts of granular material, 0.4 part of water reducing agent, and 3.5 parts of water, and two layers of reinforced mesh are laid inside and poured, with a length of 1960mm. The width is 500mm and the thickness is 20mm; when the microporous particle sound-absorbing board is poured, 40 parts of inorganic adhesive B, 45 parts of aggregate, 2.5 parts of water reducing agent, 6 parts of fiber material and 6 parts of water are used as reinforcement boards to pour together forming. According to the appearance, it is necessary to add additives such as pigments to ensure that the sound-absorbing panels have different...

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Abstract

The invention discloses a light weight, high-strength and environmentally-friendly type nonmetallic sound barrier, and relates to the field of nonmetallic sound barriers. The light weight, high-strength and environmentally-friendly type nonmetallic sound barrier comprises a plurality of sound absorbing panels, a plurality of sound insulating panels and fixing devices. The fixing devices are standcolumns with vertical grooves, and are fixed on edges of a bridge deck or pavement, the sound barrier is formed by inserting the multiple sound absorbing panels and the multiple sound insulating panels between every two stand columns, the sound absorbing panels are micro-porous particle sound absorbing panels and are arranged on the side near a sound source, the sound insulating panels are concrete sound insulating panels and are arranged on the side far away from the sound source, and air separating cavities are reserved between the micro-porous particle sound absorbing panels and the concrete sound insulating barriers.

Description

technical field [0001] The invention belongs to the field of non-metallic sound barriers, in particular to a light-weight, high-strength, environment-friendly non-metallic sound barrier. Background technique [0002] With the continuous enhancement of people's awareness of environmental protection, the problem of noise pollution has been paid more and more attention. In recent years, due to the rapid development of high-speed railways, expressways, urban elevated roads and urban light rail construction and the rapid increase in the number of urban motor vehicles, the problem of traffic noise has become increasingly serious and has become one of the most serious and widespread pollution affecting people's lives. Among various measures to prevent and control traffic pollution, setting up sound barriers is an effective method. Common sound barriers are divided into metal sound barriers and non-metal sound barriers, and non-metal sound barriers are further divided into organic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01F8/00C04B28/04C04B111/52
CPCE01F8/0017E01F8/0029E01F8/007C04B28/04C04B2111/52C04B18/146C04B20/0016C04B14/06C04B14/068C04B14/18C04B14/24C04B16/04C04B2103/302C04B14/48C04B16/0641C04B14/46C04B14/386
Inventor 王卫东张玉岁洪少华宣君许晶晶
Owner JIANGSU XINGUANG ENVIRONMENTAL PROTECTION ENG
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