4 represents the energy dissipation obtained during one cycle of complex modulus
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
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
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.