Research Article
Comparison of Asphalt Mixtures Designed Using the Marshall and Improved GTM Methods
Table 4
Summary of the oil-stone ratios for asphalt mixtures selected using the Marshall method.
| | Gradation number | Selected oil-stone ratio (%) | Theoretical maximum relative density (g/cm3) | Measured density (g/cm3) | Porosity (%) | Mineral material clearance rate (%) | Saturation (%) | Marshall stability (kN) | Flow value (0.1 mm) |
| | 1 | Light load | 4.47 | 2.502 | 2.401 | 4.0 | 13.0 | 68.9 | 13.05 | 35.0 | | Overload | 4.17 | 2.512 | 2.387 | 5.0 | 13.2 | 62.3 | 13.20 | 33.5 |
| | 2 | Light load | 4.56 | 2.504 | 2.405 | 4.0 | 13.0 | 69.6 | 11.70 | 33.0 | | Overload | 4.15 | 2.518 | 2.391 | 5.0 | 13.1 | 61.5 | 12.50 | 28.0 |
| | 3 | Light load | 4.84 | 2.488 | 2.388 | 4.0 | 13.5 | 70.2 | 13.30 | 23.9 | | Overload | 4.50 | 2.499 | 2.374 | 5.0 | 13.7 | 63.5 | 14.80 | 24.4 |
| | 4 | Light load | 4.98 | 2.488 | 2.388 | 4.0 | 14.0 | 71.3 | 9.60 | 34.9 | | Overload | 4.60 | 2.501 | 2.375 | 5.0 | 14.2 | 64.5 | 9.70 | 34.9 |
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