-
In a Marshall sample, the bulk specific gravity of mix and aggregates are 2.324 and 2.546 respectively. The sample includes 5% of bitumen (by total weight of mix) of specific gravity 1.10. The theoretical maximum specific gravity of mix is 2.441. The void filled with bitumen (VFB) in the Marshall sample (in%) is __________
-
- 68%
- 67.7%
- 68.7%
- 67%
Correct Option: B
62 to 68
| Vv = | × 100 | |
| Gm |
| = | × 100 = 5.03 % | |
| 2.324 |
| Vb = Gm | = 2.324 × | = 10.564 | ||
| Gb | 1.1 |
VMB = Vv + Vb = 15.594%
| VFB = | ||
| VMb |
| = | × 100 = 67.7% | |
| 15.564 |
