Research Article
Performance Characteristics of Silane Silica Modified Asphalt
Table 2
Penetration and penetration index PI.
| Volume | 15° penetration | 25° penetration | 30° penetration | PI |
| 0% | 31.7 | 81.3 | 133.9 | −0.26 | 0.5% | 25.1 | 82.6 | 124.4 | −1.06 | 1.00% | 29.2 | 65.1 | 113.2 | 0.239 | 1.50% | 27.8 | 73.3 | 128 | −0.61 | 2% | 25.5 | 73.9 | 123.3 | −0.867 | 3.0% | 30 | 74 | 116.7 | 0.116 | 4% | 20.1 | 57.2 | 90 | −0.566 | 5% | 19 | 64.3 | 87.1 | −0.816 |
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