The article shows effects of the newest research which were undertaken in 2008 by Mining Department of the Institute of Mechanized Construction and Rockmining. Researches were regarded usage of rock found near coal deposits after process of concentration and coal processing to aggregate production, Rocks comes directly from coal national deposits were treated on experimental technology line 40 t/h. As a result of the research it was obtained aggregates with repeatable physical-mechanical parameters which is useful for usage in concrete not exposed for freezing and for roads layer for isolated against freezing.