วันจันทร์ที่ 26 กรกฎาคม พ.ศ. 2553

Noise barrier

In Thailand there are so many noise barrier along the express way in Bangkok. I found that there few suppliers for this application in Thailand. Last Friday I have a chance to talk with one supplier. One of the noise barrier is made from fiber glass reindorce with cement. Some is made from plastic reinforce with fibre glass. Weight of one pannel is about 20-30 kg. Some is about 120 kg/sqm. This is related to the weight, frequency of noise and sound pressure level. This kind of noise barrier can be made the texture on the surface,which sometime we make it for the absorption aspect. I would like this article just to share that I am interested in this application, but in the future I may need to create them myself.