Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6638893 | Fuel | 2014 | 7 Pages |
Abstract
To assess the effect of fly ash on the rheological performance of asphalt cement, a dynamic shear rheometer was used to measure the binder's resistance to shear deformation in the linear viscoelastic region. The rutting factor, G*/sin(δ) and dynamic viscosity, ηâ², were determined for different types of bitumen at different temperatures, with 5%, 15%, 30% and 60% of binder replacement by weight of fly ash class C and F. The addition of fly ash improved the rutting factor and reached a higher performance grade of the binders. The viscosity for both bitumen types increased at 124 °C degrees, but for the most of the compositions it remained within the range for mixing and placement of asphalt concrete.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Konstantin Sobolev, Ismael Flores Vivian, Rajan Saha, Nazimuddin M. Wasiuddin (Wasi), Nibert E. Saltibus,