Research Article
Physicomechanical Assessments and Heavy Metals’ Leaching Potential of Modified Asphalt Binders Incorporating Crumb Rubber and Tin Slag Powders
Table 6
The determination of surface area.
| Sieve size (mm) | Percent passing (%) | Surface area factor (m2/kg) | Surface area (m2/kg) |
| 20 | 100 | — | 0.41 | 14 | 95 | — | — | 10 | 81 | — | — | 5 | 56 | 0.41 | 0.229 | 3.35 | 47 | 0.82 | 0.3854 | 1.18 | 26 | 1.64 | 0.4264 | 0.425 | 18 | 4.78 | 0.8604 | 0.15 | 10 | 12.29 | 1.229 | 0.075 | 6 | 32.77 | 1.9662 |
| Total surface area of combination size aggregate | 5.507 |
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