Evolution of Skid Resistance of Different Materials for Metro Rolling Tracks

Abstract

This paper investigates the evolution of skid resistance against traffic of different tracks materials for rubber-tired metro. Experimental analysis based on the friction analysis of different track specimens at different polishing states is done. The polishing and friction measurements are performed using the so-called Wehner-Schultz machine. Three materials of which two concrete mixes and steels treated differently at surfaces (before the polishing process) are studied. The results show that concretes offer better skid resistance than steels in the long term, while the initial skid resistance depends exclusively on the treatment applied on the initial surface texture.