Low-noise pavement excellent with long-lasting noise reduction
The Quiet Asphalt

The Quiet Asphalt performs noise reduction over 7dB (8~11dB) compared to existing deteriorated asphalt and is non-permeable low-noise pavement with effective long-lasting noise reduction by no voids closing in operation.

Properties

  • Excellent noise reduction more than 7dB compared to existing deteriorated roads
  • Excellent long-lasting effect of noise reduction because of no voids closing in operation
  • Easy maintenance & no need for the perforated drainpipe
  • Excellent constructability due to the identical method and equipment used in the existing asphalt pavement

Applications

  • Densely populated area with the road noise complaints. 
  • Schools, hospitals or government office area
  • Roads requiring soundproof wall installation
  • Roads requiring additional noise reduction

 Effect of Noise Reduction

Seoul-si, South KoreaSuwon-si, South Korea Incheon-si, South Korea Daejeon-si, South Korea 
Noise Measurements (dB)Noise Measurements (dB)Noise Measurements (dB)Noise Measurements (dB)
Before81.8Before77.7Before75.2Before75.0
After69.2After67.3After66.6After64.8
Noise Reduced12.6Noise Reduced10.4Noise Reduced8.6Noise Reduced
10.2

Construction Procedures (Cutting) 

Construction Procedures (Without Cutting)

Construction Cases