| Popis: |
The addition of polymers and by product waste materials to straight asphalt has shown improvement of binder's properties. In this research, the rubber powder by which the waste tire of the passenger motorcar smashed with the freezing-method is added to the straight asphalt 60/80. Rubber 0.2mm, 0.4mm, 0.6mm, 0.8mm and 1.2mm, respectively, was mixed with asphalt at a rate of 15% by total weight. The viscosities measured with a rotation viscometer, Complex Shear Modulus (ΙG*Ι), phase angle (δ) and softening point temperatures evaluated the behavior at high temperatures. The flexural creep stiffness and slope of response evaluated the behavior at low temperatures. The improvements on binder properties after rubber addition showed the same magnitude despite the difference of rubber size. |
