Research Article
Reuse of Zeolite By-Products Derived from Petroleum Refining for Sustainable Roads
Table 5
Comparative summary of results from the workability study.
| | Property | HMA | WMA-0.3% Z1, 145°C | WMA-0.3% Z2, 145°C | | Mean | Deviation | Mean | Deviation | Mean | Deviation |
| | Air void (%) | 3.4 | 0.45 | 3.6 | 0.72 | 3.4 | 0.75 | | Stiffness at 20°C | 6,956.0 | 329.1 | 6,778.4 | 382.9 | 6,407.1 | 382.3 | | ITS at 20°C | 1,610.2 | 66.5 | 1,769.0 | 84.2 | 1,891.8 | 94.1 |
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