Аннотация
In the paper physical and mechanical characteristics of Rubber-Bitumen Compounds (RBC) on based rubber crumb (RC) from worn tires were investigated. At experiment the standard petroleum bitumen BND 60/90 modified with rubber crumb. The spent engine oil was used as additional modifying agent. Images of Scaning Electron Microscopy (SEM) showed that the RC is very low pores heterogeneous material. Physical and mechanical characteristics of rubber modified bitumen with engine oil (R:O=1:1 and R:O=3:2) corresponds to grade of paving rubber-bitumen compounds RBC 60/90, RBC 90/130 and RBC 130/200.