Determinination of the rheological properties of bitumenous mixtures bitumen penetration grade 100/150 and 45% reclaymed asphalt using a Dynamic Shear Rheometer (DSR) Anton Paar RheoCompass™, according AASHTO T 315 standard were done. This test method covers the determination of the dynamic shear modulus and phase angle of asphalt binder when tested in dynamic (oscillatory) shear using parallel plate test geometry. It is applicable to asphalt binders having dynamic shear modulus values in the range from 100 Pa to 10 MPa. In this experiment the range in modulus is obtained between 52 -70°C temperature at an angular frequency of 10 rad/s. This test method is intended for determining the linear viscoelastic properties of asphalt binders as required for specification testing and is not intended as a comprehensive procedure for the full characterization of the viscoelastic properties of asphalt binder. The test was repeated 24 h past between 52 -70°C temperature.