4 represents the energy dissipation obtained during one cycle of

complex modulus test.

Asphalt rubber blends with relatively lower

complex modulus (G*) and higher phase angles are more ductile and flexible, resulting in more crack resistant materials, whereas blends with relatively higher

complex modulus (G*) and lower phase angles are more elastic and deformation resistant.

B1 modified with various contents of both Elvaloy polymers has higher values of the

complex modulus and complex viscosity over a wide temperature range than pure B2 (Fig.

f]([omega], [phi]) is a

complex modulus contributed by the filler phase related to the elastically rigid interaggre-gate chains and can be expressed as:

Loss compliance, J" is the ratio of loss modulus, E", to the square of the

complex modulus, [E*.

Rheological properties, that is, viscoelastic parameters such as the

complex modulus G*, the complex viscosity [eta]*, and the phase angle [delta], were determined with a DSR MCR 301, Anton Paar, using the Peltier temperature control system.

The

complex modulus significantly decreases when a shear stress outside the linear viscoelasticity range is applied on the sample and subsequently recovers when a shear stress inside the linear range is again restored.

6, phase angles decrease in low

complex modulus region, but they never fall below 50 [degrees].

Elastic or storage modulus, M*, is the real part of the

complex modulus M*.

In this study, percolation threshold were determined with the fact that the increasing of G' at low frequency region and the Van Gurp-Palmen plots between the phase angle and

complex modulus, which will be discussed in the following part.

For these elastomers, the mechanical response to strain energy input may be described by the well known

complex modulus E *, expressed as a function of an elastic E' and loss modulus E".

The actual strain and torque were measured and input to a computer for calculating various viscoelastic parameters such as

complex modulus (G*) and phase angle ([delta]) and so on.