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Abstract
The characterisation of an elastomer prepared from ground tyre rubber has been carried out in terms of both morphological and granulometric studies. A large number of waste tyres are discarded every year. These residuals represent a crucial environmental problem. Thus, the redemption and recycling of waste tyres constitute a research field of great interest nowadays. In this connection, the study of the size distribution of particulates is of the utmost importance. In the present work, the morphological study of a ground tyre rubber previously prepared has been carried out. The use of SEM techniques indicates that the powder is not completely uniform. The granulometric study of the powder was carried out by applying the Rosin–Rammler and Gates–Gaudin–Schuhmann models. The particle size distribution of the sample here studied satisfactorily fits the Rosin–Rammler model, especially for mesh sizes above 0·250 mm. According to the results of this study, a homogeneous behaviour of the sinterised product during the thermocompression process is expected.