Hansoo Road Industry

한수도로산업

Low noise asphalt

The Quiet Asphalt

Low-noise pavement excellent with long-lasting noise reduction

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.

#CSM

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

Uses

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 Korea		Suwon-si, South Korea		Incheon-si, South Korea		Daejeon-si, South Korea

Noise Measurements (dB)		Noise Measurements (dB)		Noise Measurements (dB)		Noise Measurements (dB)
Before	81.8	Before	77.7	Before	75.2	Before	75.0
After	69.2	After	67.3	After	66.6	After	64.8
Noise Reduced	12.6	Noise Reduced	10.4	Noise Reduced	8.6	Noise Reduced	10.2