Research Article
Usage of Reclaimed Asphalt Material in Stone Mastic Asphalt
Table 4
Composition of the individual SMA 11 mixture variants with various ratios of RA (RAP and RAP SMA).
| | Mixture | SMA 11 | | 0% RAP | 10% RAP | 20% RAP | 30% RAP | 30% RAP SMA | 50% RAP SMA |
| | Filler (%) | 10.5 | 9.5 | 8.0 | 7.5 | 6.5 | 3.7 | | Fraction 0/2 (%) | 15.0 | 10.0 | 6.0 | 3.0 | 3.0 | — | | Fraction 2/5 (%) | 18.0 | 18.0 | 16.0 | 8.0 | 9.5 | 1.0 | | Fraction 4/8 (%) | 8.0 | 8.0 | 6.0 | 9.0 | 8.5 | 7.0 | | Fraction 8/11 (%) | 48.5 | 44.5 | 44.0 | 42.5 | 42.5 | 38.3 | | RAP (%) | — | 10.0 | 20.0 | 30.0 | — | — | | RAP SMA (%) | — | — | — | — | 30.0 | 50.0 | | S-CEL 7G (%) | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | | Total binder content (%) | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | | Colflex 45/80-55 (new binder) (%) | 6.5 | 6.0 | 5.5 | 5.0 | 4.6 | 3.3 | | Addibit L300 (%) | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | | Air void content (%) | 3.8 | 3.6 | 3.7 | 3.6 | 3.6 | 3.6 | | Maximum specific gravity (kg/m3) | 2563.8 | 2564.8 | 2537.9 | 2545.0 | 2567.2 | 2579.0 | | Bulk specific gravity (kg/m3) | 2468.1 | 2473.1 | 2444.4 | 2452.6 | 2475.0 | 2490.8 | | Voids in mineral aggregates (%) | 19.5 | 19.3 | 19.3 | 19.3 | 19.4 | 19.3 | | Voids filled by bitumen (%) | 81 | 82 | 81 | 81 | 81 | 82 | | Total binder content (%-vol.) | 15.7 | 15.8 | 15.6 | 15.6 | 15.8 | 15.9 |
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