Research Article
Asphalt Mixture for the First Asphalt Concrete Directly Fastened Track in Korea
Table 1
Marshall test results at the optimum asphalt content.
| | Marshall properties | Criteria limit | Upper | Medium | Below |
| | Optimum AC (%) | At 3 | 5.5 | 5.2 | 5.3 | | Marshall stability (kgf) | >500 | 2536.7 | 2162.9 | 1776.1 | | VMA (%) | >13 | 13.6 | 13.0 | 12.9 | | VFA (%) | 70–80 | 79.3 | 78.8 | 77.9 | | Flow (0.01 cm) | 20–40 | 35.8 | 31.8 | 43.1 | |
(g/cm3) | — | 2.344 | 2.353 | 2.358 |
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