Use of dynamic ballast testing equipment for analysis of rail aggregate breakdown

The granulometric range used has a direct influence on the life of ballast layer when subjected to load generated by rail traffic. However, in Brazil, we have only two size ranges be used. publications related subject matter under study express need for continuous grain strip, different from ones usually our railways. This more band would provide less deformation and reduction degradation, granting longer life. To verify granulometry, Dynamic Ballast Test Equipment was simulate railway results show that if use uniform breakage index is evidenced, consequently, shorter useful highlights bands ballast.