Open AccessDiscrepancies in Rheological Properties of Modified Asphalt Cement
Author(s) -
Yasameen Hadi Abed,
Yousif Abdulmohsin Khudhair,
Abdulhaq Hadi Abedali Al-Haddad
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/870/1/012029
Subject(s) - rheology , asphalt , materials science , viscoelasticity , composite material , phase angle (astronomy) , dynamic modulus , cement , shear modulus , modulus , polymer , dynamic mechanical analysis , physics , astronomy
DSR device was used to investigate the variations in linear and non-linear viscoelastic limitations with both pure and polymer modified asphalt film binders. Different test temperatures and strain rates were used to measure the change in the rheological response of the thin film of different asphalt binders and determine the variations in rheological data due to non-linear impacts by using dynamic properties of asphalt binder and phase anlage. The experimental results showed that the addition of SBS modifier to asphalt binder increased the viscous part of complex shear modulus and then increased dissipated energy for Durah asphalt cement vice versa Nasiriyah asphalt cement. Also, the SBS addition decreased in variations of the viscous part of complex shear modulus due to the decrease in phase angle.