Research Article
Effect of Different Types of Fly Ash on Properties of Asphalt Mixtures
Table 9
Volumetric properties, stability, and flow of asphalt mixtures.
| | Mix | Air voids (%) | Voids in mineral aggregate (%) | Voids filled with bitumen (%) | Bulk density (kg/m3) | Apparent (maximum) density (kg/m3) | Stability (kN) | Flow (mm) | Stability/flow ratio (kN/mm) |
| | Control mix | 4.7 | 17.9 | 73.7 | 2371 | 2488 | 10.2 | 4.2 | 2.4 | | P25 | 5.5 | 18.6 | 70.1 | 2346 | 2484 | 11.3 | 3.3 | 3.4 | | P50 | 6.7 | 19.6 | 65.7 | 2313 | 2480 | 10.0 | 3.4 | 2.9 | | P75 | 7.1 | 19.9 | 64.3 | 2300 | 2476 | 11.8 | 3.3 | 3.6 | | P100 | 7.7 | 20.4 | 62.1 | 2280 | 2471 | 11.2 | 2.5 | 4.5 | | G25 | 4.6 | 17.8 | 74.3 | 2376 | 2490 | 11.5 | 3.8 | 3.0 | | G50 | 4.4 | 17.6 | 75.0 | 2382 | 2492 | 10.7 | 3.7 | 2.9 | | G75 | 4.6 | 17.8 | 74.4 | 2380 | 2494 | 11.0 | 3.5 | 3.1 | | G100 | 4.4 | 17.7 | 75.0 | 2385 | 2495 | 11.3 | 3.7 | 3.1 | | K25 | 5.2 | 18.3 | 71.7 | 2360 | 2489 | 11.1 | 3.5 | 3.2 | | K50 | 5.0 | 18.2 | 72.2 | 2364 | 2490 | 10.4 | 3.6 | 2.9 | | K75 | 5.7 | 18.8 | 69.5 | 2348 | 2490 | 11.0 | 3.2 | 3.4 | | K100 | 6.0 | 19.0 | 68.3 | 2341 | 2491 | 9.8 | 3.3 | 3.0 | | Specification | 3.0–6.5 | N/A | 65–77 | | | N/A | N/A | N/A |
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