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Anping County, Hengshui City, Hebei Province, P.R.China.
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Noise Barrier
產品型號：Noise Barrier Combined Type Sound Absorbing Road B
產品分類：自動化設備/產業機械 / 鑄件 / 粉末冶金另件
產品特色
Noise barrier is a professional sound insulation facility designed to block and absorb traffic and environmental noise. It is mainly composed of perforated metal sound absorbing panels, transparent PC boards, steel frames and fixed accessories. Featuring excellent sound insulation performance, wind resistance, anti-corrosion and weather resistance, it can adapt to all kinds of outdoor harsh environments. Widely installed on highways, railways, urban roads, viaducts, residential communities, construction sites and industrial zones to effectively reduce noise pollution and improve living and travel environment.
Noise Barrier is an outdoor acoustic barrier system used along highways, railways, bridges, factories, power plants, and construction site perimeters. The common structure is a metal acoustic panel fixed between H-beam posts. The noise source side is usually perforated for sound absorption, and the back side is closed with solid sheet for sound insulation. The panel can be filled with hydrophobic rock wool or hydrophobic centrifugal glass wool, depending on project requirements. Transparent PC panels can be added where daylight or visibility is needed. Panel size, barrier height, wind load, corrosion class, fire rating, and acoustic target should be confirmed from project drawings before production.
產品規格
Noise Barrier Specifications
Panel Material: Galvanized steel sheet or aluminum alloy sheet for metal acoustic panels. Outdoor transparent sections usually use UV-coated polycarbonate solid sheet.
Common Panel Thickness: 80mm, 100mm, and 120mm overall panel thickness. This refers to the finished panel body, not only the acoustic filling layer.
Standard Module Height: 500mm, 800mm, or 1000mm per panel. Common project heights include 2m, 3m, 4m, and higher designs according to site drawings.
Panel Length: 1960mm or 2000mm is commonly used to match H-beam post spacing. Custom length is available after confirming post center distance.
Perforated Side: The side facing the noise source is perforated. Common perforation rate is about 20%-30%, depending on panel design.
Back Side: Closed solid sheet for sound insulation. This side normally faces the protected area.
Absorbing Core: Hydrophobic rock wool or hydrophobic centrifugal glass wool. Ordinary indoor glass wool is not recommended for outdoor road and railway projects.
Acoustic Performance: Common project targets include Rw 25dB, Rw 30dB, and Rw 35dB. Final value depends on panel structure, barrier height, sealing, post spacing, and test method.
Reference Standards: Acoustic performance can be designed or tested according to project requirements such as EN 1793, EN 1794, or local road and railway specifications.
Post Type: H-beam post is the common choice for continuous roadside and railway noise barriers. U-post or I-post may be used in selected designs.
Surface Treatment: Hot-dip galvanized steel plus outdoor powder coating is the common finish for road and municipal projects.
Corrosion Option: Inland projects usually use standard hot-dip galvanizing and powder coating. Coastal or high-humidity projects should specify higher zinc coating and thicker outdoor powder coating.
Transparent Panel: UV-coated PC solid sheet, commonly 8mm, 10mm, 12mm, or 15mm thick. Transparent panels mainly provide sound insulation and visibility, not sound absorption.
Fire Performance: Metal panels with mineral wool filling can meet non-combustible or fire-rated project requirements when tested as specified. The final rating should follow the required standard.
Accessories: H-beam posts, rubber sealing strips, bolts, pressure plates, end caps, base plates, and drainage details can be supplied according to drawings.
Application
Highway and Urban Road Noise Reduction
Metal Noise Barrier panels are installed beside highways, viaducts, and urban roads. A 100mm galvanized steel acoustic panel is commonly used for standard roadside sections.
Railway and Metro Line Acoustic Barriers
Railway projects usually require stable panel sealing, wind load review, and corrosion-resistant coating. Transparent PC panels may be used near stations, bridges, or residential sections.
Industrial Equipment Noise Control
Industrial noise barrier panels are used around generators, compressors, cooling towers, transformers, and workshop boundaries. Panel thickness and barrier height should be selected after checking the noise source position.
Temporary Construction Site Noise Barrier
Temporary acoustic hoarding or modular noise barrier systems are used around piling areas, demolition zones, and construction site perimeters. Removable steel posts and reusable panels are common for this application.
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