Research Article
Effect of Zn/Al Layered Double Hydroxide Containing 2-Hydroxy-4-n-octoxy-benzophenone on UV Aging Resistance of Asphalt
Table 2
Chemical compositions of asphalts before and after UV aging.
| | | Saturates (%) | Aromatics (%) | Resins (%) | Asphaltenes (%) | Ic | Unaged Ic-aged Ic |
| Unaged
SBS modified asphalt | 8.82 | 41.36 | 38.47 | 11.35 | 3.96 | — |
| UV aged
SBS modified asphalt | 7.63 | 35.82 | 34.78 | 21.77 | 2.40 | 1.56 |
| Unaged
modified asphalt | 8.76 | 41.39 | 38.54 | 11.31 | 3.98 | — |
| | UV aged modified asphalt | 8.14 | 37.72 | 36.34 | 17.80 | 2.86 | 1.12 |
| Unaged
Zn/Al-HNOB−-LDH/SBS modified asphalt | 8.48 | 41.62 | 38.26 | 11.64 | 3.97 | — |
| UV aged
Zn/Al-HNOB−-LDH/SBS modified asphalt | 8.25 | 39.82 | 37.43 | 14.50 | 3.40 | 0.57 |
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