AFP for Sound Barrier


AFP for Sound Barrier

In order to reach best sound absorption effect in outdoor, highway, railway, etc.,we have developed a special processed AFP.
We punch holes regularly on the AFP as a proportion of 3%. This special AFP has greatly improved sound absortion capacity.

This special AFP is an excellent sound absorption material.
Its surface is very porous and it also have many celluar inner structure.
It is  absorbing sound not only through the diffuse reflection on the surface but also disspating the sound energy through the inner porour structure and it also owns the Helmholtz Resonance sound absorption theory. 
Besides, after our research, we have come to know that the sound absorption capacity will shift to low frequencis if we set some certain distance of air space behind the special AFP.
The following photo is the Sound absorption coefficience  of our special AFP with 60mm air space.
It can absorb 60%~90% noise below 600Hz, which exactly meet the noise reduction requirements in viaduct, overhead, highways, etc.

          


Comparing to other acoustic barriers, our AFP has the following advantages:
Average soundproofing capacity--- over 20dB
Excellent sound absorption capacity -- it is permant acoustic material and the NRC can reach  60%~90%.
Anti-dampness/waterproof-- As our AFP is made of pure aluminum, it is anti-corrosive, antifade;  the acoustic performance will not be affected after rain or dampness.
Fireproof-- pure aluminum material, the melting point is appox.780degrees.
Cost-effective-- using our AFP only can control the noise reduction, no need of other materials.Besides, we also can paint colors for decoration.
Longer use life--this is permant acoustic material, others will  reduce its sound absorption capacity once it gets wet or damp.
100% eco-friendly--- it wont produce secondary pollution, as there is no mineral wool or glass wool used inside.
100% recyclable-- We can make other products aftering melting this aluminum foam panel.
Good buffering effect-- It is not only acoustic material, but also can be good buffering material because of its porous structure.
Here are some project photos of AFP used for highway for your reference:

Address: Beihai Industry Park, Changhong Rd 280#, Jiujiang City, Jiangxi China Email: sales@chinabeihai.net
Tel: 0086 792 8322300/8322329/8322322 Fax: 0086 792 8322312
ICP09049290-2