Research Article
Physicomechanical Assessments and Heavy Metals’ Leaching Potential of Modified Asphalt Binders Incorporating Crumb Rubber and Tin Slag Powders
Table 10
Basic properties of asphalt binders.
| Properties | Control sample | Crumb rubber content (%) | Tin slag content (%) | 5% | 10% | 15% | 5% | 10% | 15% |
| Penetration, dmm | 65 | 58 | 54 | 42 | 56 | 57 | 57 | Softening point, °C | 50 | 53 | 56 | 61 | 49 | 48 | 45 | Penetration index | −0.574 | 0.217 | 0.957 | 2.062 | −2.255 | −2.255 | −2.255 | Elastic recovery, % | 92.3 | 54 | 37 | 32 | 91.67 | 91 | 91.67 | Ductility, cm | >100 | >100 | >100 | >100 | >100 | >100 | >100 |
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