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Sound Absorption Metal Perforated Noise Barriers

China Sound Absorption Metal Perforated Noise Barriers, Find details about China Noise Barriers, Highway Noise Barriers from Sound Absorption Metal Perforated Noise Barriers

Certification
ASTM, ISO
Color
Blue
Brand
Avida
OEM
Welcomed
Certificate
ISO9001:2008; SGS
Steel
1.5mm
Factory
Yes
Surface Treatment
Galvanized
Location
Roadside
Application
Highways
Trademark
MEISHUO
Transport Package
Pallet
Specification
ISO9001-2008, SGS
Origin
Nanjing, Jiangsu, China
HS Code
731450000
Certification
ASTM, ISO
Color
Blue
Brand
Avida
OEM
Welcomed
Certificate
ISO9001:2008; SGS
Steel
1.5mm
Factory
Yes
Surface Treatment
Galvanized
Location
Roadside
Application
Highways
Trademark
MEISHUO
Transport Package
Pallet
Specification
ISO9001-2008, SGS
Origin
Nanjing, Jiangsu, China
HS Code
731450000
sound absorption metal perforated noise barriers

Introduction:
 
A noise barrier (also called a soundwall, sound berm, sound barrier, or acoustical barrier) is an exterior structure designed to protect inhabitants of sensitive land use areas from noise pollution. Noise barriers are the most effective method of mitigating roadway, railway, and industrial noise sources - other than cessation of the source activity or use of source controls.
 
Sound Absorption Coefficient
 
Frequency(Hz)100125160200250315400500630
Sound Absorption Coefficient a0.210.240.360.410.640.810.981.020.96
Frequency(Hz)80010001250160020002500315040005000
Sound Absorption Coefficient a0.910.961.051.121.121.101.040.990.94
 
Sound Transmission Loss
 
Frequency(Hz)100125160200250315400500630
Sound Transmission Loss(dB)242623211919202122
Frequency(Hz)80010001250160020002500315040005000
Sound Transmission Loss(dB)232526283032343626
 
Features:
 
1, Soundproof function: sound insulation STC≥30-35
2, Noise absorption function: Using advanced centrifugal glass wool, Average noise reduction coefficient NRC≥0.95
3, Solid and steady: Using aluminum and steel post, wind resistance 1500N/m2
4, Anti-aging and anti-corrosion
5, we provide custom service as our customers' requirements
 
Classification:
 
1, Metal Perforated Noise Barrier:
 
There are many small holes in the noise barrier surface. When the sound enters sound absorption materials and moves forward, the sound power turns into heat energy because of viscosity and heat conduction effects in the transmission. At the same time, sound waves are absorbed by sound absorption materials after being reflected by steel backboard.
Sound Absorption Metal Perforated Noise Barriers

2, Metal Shutter Noise Barrier
 
Sound Insulation: average 37dB
Sound Absorption Coefficient: average 0.84
Waterproof, heat resistant, custom color and shape, easy to install
Sound Absorption Metal Perforated Noise Barriers

3, PC polycarbonate Noise Barrier
 
Good light transmittance: Can reach 90%. It won't get yellowing and nebulization with sun exposure.
Shock Resistance: 250-300 times of normal glass, 20-30 times of acrylic plate(PMMA).
Flame retardance: refractory B1. its physical performance keeps steady in -40ºC- +120ºC. Its auto ignition temperature is 630ºC.
Light and easy to install: Its weight is 1/2 of glass with the same thickness. It can both be cold-formed and hot-formed and customized to any shapes.
UV Resistant: double UV-coating, anti-aging.
Sound Absorption Metal Perforated Noise Barriers

Noise Barrier Shapes:
 
Flat Perforated Noise Barrier
Top Straight-bend Noise Barrier
Shutter Noise Barrier
Top Curved Noise Barrier
Arc-shape Noise Barrier
Concave-convex Perforated Noise Barrier


Leave us message below if any interests
---we will get back to you ASAP.
 
Gina Huang

Mob: 0086-13813984347
Tel : 0086-025-58196288  
Fax:0086-025-58196399
   

   
    
   

 

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