Research Article
Synergetic Effect of Nano-ZnO and Trinidad Lake Asphalt for Antiaging Properties of SBS-Modified Asphalt
Table 6
Table of changes in asphalt carbonyl index (CI) and styrene index (IB/S) before and after aging.
| | Aging state | SBS asphalt | 3% Z + 25% T + SBS asphalt | | CI | CI increment | IB/S | IB/S reduction | CI | CI increment | IB/S | IB/S reduction |
| | Before aging | 0.114 | — | 1.882 | — | 0.154 | — | 1.873 | — | | RTFOT | 0.257 | 0.143 | 1.835 | 0.047 | 0.27 | 0.116 | 1.852 | 0.021 | | UV | 0.337 | 0.223 | 1.594 | 0.288 | 0.323 | 0.169 | 1.674 | 0.199 | | PAV | 0.485 | 0.371 | 1.644 | 0.238 | 0.367 | 0.213 | 1.715 | 0.158 |
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Note. Z was ZnO; T was TLA.
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