Acústica de materiales para carreteras.

Abstract

Noise is one of the main environmental pollutants that affect not only our mood, it also prevents the enjoyment and pleasure of driving; Although there are several actors that produce noise on roads, as engineers our concern is to reduce the noise levels in the pneumatic pavement contact and why not, to generate harmonic sound with appropriate materials and geometries, originating sensations of tranquility and comfort. Through the use of special microphones, recording consoles and sound software, stone materials used in road construction were analyzed in order to identify and evaluate their reaction to sound stimuli; These analyzes led to an understanding of how acoustic signals generate noise, and to study how to reduce noise levels, either by modifying the geometry and size of the particles, or by mixing conventional materials with synthetics capable of absorbing it. As a result, noise reduction is obtained in some materials and pavement structure designs are proposed.