Construction Road Noise Barrier Fence Roadway Soundproof Sheet
Acoustic barrier for highway is mainly used as a noise reduction of
road, highway, viaduct and other noise sources. It refers to a kind
of barrier set at the edge of road or railway in order to reduce
the impact of vehicles' noise on residents nearby.A kind of
facility is established between sound sources and recipients to let
sound transmisson have a remarkable additional reduction, thus
alleviating the bad influence of noise on areas where recipients
are in; this kind of facility is Acoustic Barrier For Highway.
The function of sound barrier is to prevent the transmission of
direct sound, isolate the transmitted sound, and make the reflected
sound have enough attenuation. Therefore, the attenuation of sound
barrier is designed by using the principle of sound reflection.
Sound waves (noise) for transmission on the way, if meet barriers
(sound barriers), reflection will happen, so within the scope of a
certain distance behind obstacles to form the "shadow", the area
size depends on the size of the voice (frequency), see from this,
the noise attenuation of noise barrier is closely related with the
center frequency value.
Due to the high frequency sound shadow area is large, short
wavelength, so the most easy to be blocked, the second is the
intermediate frequency sound, the sound barrier formed behind the
sound in the shadow of the low frequency sound, due to the long
wavelength, circling around the barrier, it is easiest to
diffraction in the past, so the surrounding environment will
produce certain effect, so the noise barrier on its low-frequency
noise sound insulation effect is poorer, proved by actual
measurement: The sound barrier has no obvious attenuation for
low-frequency sound with a frequency below 250Hz, but it has a
better attenuation effect for medium and high-frequency sound.
Parts list | Items | Product description |
| Metal material | Galvanized sheet aluminum alloy sheet, color plate |
Transparent material | Glass, PC board, acrylic board, etc. |
Other material | High strength cement, cement wood chips, glass steel, etc. |
Hole pattern | Louver holes; common hole spacing 20*137, 20*182 |
Micropores; common 3 holes 3 distances, 5holes 2 distances, 2 holes
4 distances |
Aperture ratio | Not less than 25% |
Common size | 500*2000*80(100) mm,500*2000*120 mm,1000*2000*80(100) mm etc. |
surface concave groove | Can be customized according to drawings or customer requirements |
Surface treatment | Electrostatic powder coating, fluorocarbon spraying |
Color | Green 6029, blue5017, gray7042, white 9010, etc. color can be
selected according to the national standard color card |
| Material | Q235B |
Common size | 100*100*6*8 125*125*6.5*9 150*150*7*10 175*175*735*11 etc. |
Common height | 2m-6m up to12m |
Flange | Size tolerance less than 2mm, thickness tolerance less than 0.4mm |
Long hole:22*30 24*30 26*40 28*40; round hole:22 24 26 28 30 35 |
Surface treatment | Hot dip galvanizing-electrostatic powder coating, fluorocarbon
spraying |
Color | Green 6029, blue5017, gray7042, white 9010, etc. color can be
selected according to the national standard color card |
| Glass wool, rock wool, water-repellent, cloth, acoustic felt, foam
aluminum fiber etc. |
FAQ
* How can I get quotation and free sample?
A: You need to send inquiry to us before getting them.
* What is the delivery time?
A: Usually 15-20 days after receiving advanced payment.
* What is the payment term?
A: Usually payment term is 30% by T/T in advance, the balance by
T/T against the fax copy of B/L.
