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A Marshall specimen is prepared for bituminous concrete with a bitumen content of 5 percent by measured unit weights of the mix are 2.442 g/cm3 and 2.345 g/cm3 , respectively. The bitumen has a specific gravity of 1.02. The percent voids in mineral aggregate filled with bitumen (VFB) are
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- 34.55
- 35.9
- 73.55
- 74.3
- 34.55
Correct Option: C
Gt = 2.442 g/cm2
Gm = 2.345 g/cm2
| % air voids (Va) = | = 1.917 | |
| Total volume |
| = | ![]() | ![]() | × 100 | |
| C1 |
| = | × 100 = 4.1369 | |
| 2.345 |
| Vol of bitumen ,Vb = Gm × | ||
| Gb |
| = | = 11.49% | |
| 1.02 |
% voids filled by bitumen
| = | = 73.536% | |
| 0.11495 + 0.04 |

