Review Article
Influence of Biomass-Modified Asphalt Binder on Rutting Resistance
Table 3
The impact of various biomodifiers on rutting in various asphalt binders.
| Biomass type | Optimum percentage of biomass | Asphalt binder type | Properties | Rutting resistance |
| Bioash | 5–20 as a modifier of the asphalt binder | PG 58-22 PG 64-16 PG 64-22 PG 76-22 | Softening point, viscosity, and G/sinδ increased, the penetration grade and ductility decreased. | Up to 130% increase of rutting parameter and up to 50% decreased rutting depth. |
| Biopolymer | 8–20 | PG 64-16 PG 64-22 PG 76-22 | Penetration grade, softening point, viscosity, and G/sinδ increased, temperature sensitivity improved. | Up to 170% increase of rutting parameter and up to 55% decreased rutting depth. |
| Bio-oil | 0.5–60 as asphalt binder extender and modifier | PG 58-28 PG 64-22 PG 70-22 PG 76-22 PG 82-16 | The obtained results are variable. | The obtained results are variable. |
| Biochar | 2–20 | PG 58-28 PG 64-22 | Fatigue resistance, viscosity, and G/sinδ increased. | Up to 100% increase of rutting parameter and up to 20% decreased rutting depth. |
| Bioshell waste | 10–16 | PG 58-28 PG 64-16 | The penetration grade decreased, softening point, viscosity, and G/sinδ increased. | Up to 120% increase of rutting parameter. |
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