The Acoustic Performance of Asphalt Mixture and Low-noise Asphalt Mixture Design

摘要

Considering of the noise reduction mechanism of asphalt mixture, the paper studies on the influence of the nominal maximum size, viscoelasticity and porosity ratio of asphalt mixture to the noise reduction of asphalt concrete. The results showed that, fine gradation bituminous concrete and asphalt rubber concrete have the similar noise reduction to the porous asphalt concrete, at the same time the formers have good performance and significant social and environmental benefits. The trial section proves that the two types asphalt mixture apply to our conditions.