What kind of material is good for high-speed sound barrier? All metal or cement sound barrier?

The material selection of high-speed sound barrier needs to be decided according to the specific situation. All-metal and cement sound barriers have their own advantages, and other sound barriers will be used at high speed, such as pc board and safety glass transparent sound barrier.

Metal noise barriers are widely used and common, and their main materials are aluminum alloy plates, galvanized plates, colored steel plates and other high-quality metal plates, which are mainly suitable for domestic road noise barriers and railway noise barriers.

It has outstanding sound absorption performance, and the sound absorption coefficient NRC is more than or equal to 0.9; ; Light weight, strong impact resistance, good formability, easy installation and little secondary pollution.

High-strength cement sound barrier: the screen body is formed by one-time vacuum extrusion of concrete and sand. The high-strength cement sound barrier has strong wind load and can withstand the wind load requirement of high-speed rail at 350 kilometers per hour; High strength, sound insulation, water resistance, heat resistance and ultraviolet resistance, free from the influence of climate and weather, and long service life; Simple and convenient installation, short construction time; The cost is lower than other materials, such as noise barriers.

Its main application scope is viaduct, expressway, factory criticality, equipment noise reduction and other industries; Its color can be the color of cement itself, but it can be made into the required color according to the requirements.

Generally speaking, we need to look at high-speed loading. Compared with the high-strength cement sound barrier, the all-metal sound barrier is lighter. However, the cement sound barrier is more capable of bearing wind load and can be used in windy areas.