Highway noise barriers, available from stock!

厚度：

80-120mm

宽度：

500-1000mm

长度：

2500-3000mm

sound barrier, also called a sound barrier, a sound barrier, or a sound barrier, is a blocking structure located between the sound source and the receiver. It is mainly used to block the propagation of direct sound, causing a significant additional attenuation of the sound wave propagation, thus weakening the receiver. It is a sound insulation facility that affects the noise within a certain area. Such a facility is called a sound barrier. Sound barriers are mainly used outdoors. As road traffic noise pollution becomes increasingly serious, some countries use a large number of various forms of barriers to reduce traffic noise. In buildings, if the requirements for sound insulation are not high, barriers can also be used to separate workshops and offices. The barrier is easy to disassemble, assemble and move, and has a certain sound insulation effect, so it is widely used.
Purposes of sound insulation barriers
At present, sound insulation barriers are mainly used for sound insulation and noise reduction in transportation and municipal facilities such as highways, elevated composite roads, urban light rail subways, and to control the impact of traffic noise on nearby urban areas. It can also be used for sound insulation and noise reduction in factories and other noise sources.
Sound insulation effect
The amount of noise reduction of a sound barrier is related to factors such as the frequency of the noise, the height of the barrier, and the distance between the sound source and the receiving point. The noise reduction effect of the sound barrier is closely related to the frequency component of the noise. The noise reduction effect is better for high-frequency sounds than the mid-frequency sounds of about 1. However, for the low-frequency sounds of the left and right, the sound wave wavelength is relatively long and is easily diffracted from above the barrier. In the past, the effect was poor. Generally, sound barriers reduce high-frequency sounds. The height of the sound barrier can be designed according to the distance between the sound source and the receiving point. If the height of the barrier is doubled, the noise reduction amount can be increased. In order to make the noise reduction effect of the barrier better, the barrier should be as close to the sound source as possible. or receiving point.