A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Properties of Asphalt Binders with Increasing SBS Polymer Modification
Abstract The properties of several asphalt binders with gradual styrene-butane-styrene (SBS) polymer modification were studied. The base binders used were straight-run PG 52-34, 58-28 and 64-28 which were modified with polymers at concentrations of 0, 1, 2, 3 and 4%. Two types of SBS polymers were used with different grain sizes and they were integrated into the binder with the same cross-linking agent. The rheological properties were studied using a Dynamic Shear Rheometer (DSR) with Temperature-Frequency Sweep Master Curves and the Multiple Stress Creep Recovery (MSCR) Test. The Master Curves showed that the polymer modification, up to 4% addition, increases the binder stiffness at high temperatures, which is a good indication of improved rutting resistance. The MSCR test showed improved percent recovery and compliance with increasing concentrations of SBS. To observe the effects of polymer addition on a microscopic level, the unaged binders were analyzed with the Environmental Scanning Electron Microscope (ESEM), finding that there were no significant changes with the level of polymer addition.
Properties of Asphalt Binders with Increasing SBS Polymer Modification
Abstract The properties of several asphalt binders with gradual styrene-butane-styrene (SBS) polymer modification were studied. The base binders used were straight-run PG 52-34, 58-28 and 64-28 which were modified with polymers at concentrations of 0, 1, 2, 3 and 4%. Two types of SBS polymers were used with different grain sizes and they were integrated into the binder with the same cross-linking agent. The rheological properties were studied using a Dynamic Shear Rheometer (DSR) with Temperature-Frequency Sweep Master Curves and the Multiple Stress Creep Recovery (MSCR) Test. The Master Curves showed that the polymer modification, up to 4% addition, increases the binder stiffness at high temperatures, which is a good indication of improved rutting resistance. The MSCR test showed improved percent recovery and compliance with increasing concentrations of SBS. To observe the effects of polymer addition on a microscopic level, the unaged binders were analyzed with the Environmental Scanning Electron Microscope (ESEM), finding that there were no significant changes with the level of polymer addition.
Properties of Asphalt Binders with Increasing SBS Polymer Modification
Aurilio, Mike (author) / Mikhailenko, Peter (author) / Baaj, Hassan (author) / Poulikakos, Lily D. (author)
2019-08-30
12 pages
Article/Chapter (Book)
Electronic Resource
English
Correction to: Properties of Asphalt Binders with Increasing SBS Polymer Modification
| Springer Verlag | 2019
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MODIFICATION OF ASPHALT OXIDATION AND BINDERS WITH POLYMER WAXES
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MODIFICATION OF ASPHALT OXIDATION AND BINDERS WITH POLYMER WAXES
| European Patent Office | 2019