![Sample our Engineering & Technology journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5933/TOC-Subject-Sample-2021-Engineering-Tech.jpg"})
Abstract
This work aims at evaluating the effects of the proportions of crumb rubber and shale-oil residue on the fatigue parameter G*sinδ. Eight asphalt binders were submitted to short- and long-term aging and then tests in the oscillatory-shear mode were performed. Based on regression models, response trace plots, and contour plots were made. Both rubber and oil reduce the G*sinδ parameter, increasing the controlled-mode fatigue resistance. As the test temperature decreases, the intensity of the effects of rubber and oil on G*sinδ increases and the number of mixtures that meet the Superpave limit of 5.0 MPa reduces.
NOMENCLATURE
| G* = | = | complex modulus |
| q= | = | number of components in the mixture |
| x1= | = | proportion of asphalt binder in the mixture |
| x2 = | = | proportion of crumb rubber in the mixture |
| x3 = | = | proportion of shale-oil residue in the mixture |
| δ= | = | phase angle |