Influence of the coefficient of restitution on the classification of granite sand using an elutriator Eugenia Borsa, H. Andrés Petit, Juliana Piña, Cecilia I. Paulo and E. Fabián Irassar EPJ Web Conf., 249 (2021) 05006 Published online: 07 June 2021 DOI: 10.1051/epjconf/202124905006