The effect of fillers such as mix of carbon black and cement waste on rheological characteristics
are studied in styrene butadiene rubber (SBR). The present study carried out through four recipes
according to the loading level of mixed of industrial scraps (cement waste) and carbon black (N375) (C.B)
that it used as reinforcement materials in the compounds. On the other hand, the rheological properties
tests carried out by Rheometer according ASTM D 2705 specification in order to using these compounds
in fender ship application. All compounds are composed of carbon black N375 (10, 20, 30, 35) pphr and
cement waste (10, 20, 30, 35) pphr. The viscosity, minimum torque, maximum torque, scorch time,
optimum cure time Tc90, optimum cure and thermoplasticity were examined at different temperature (165,
175, 185)oC. The results appeared that the rheographs were varied according to loading level, therefore;
viscosity, minimum torque, maximum torque, optimum cure and thermoplasticity were decreased with
increasing temperature and increased with increasing the loading level of mix C.B and cement waste. Also,
the scorch time optimum cure time Tc90 was decreased with increasing temperature, loading ratio of C.B
and cement waste.