The results of Marshall test for five specimen is given below.
Find the optimum bitumen content of the mix.
| Bitumen |
Stability |
Flow |
 |
 |
 |
| content |
(kg) |
(units) |
(%) |
(%) |
|
| 3 |
499.4 |
9.0 |
12.5 |
34 |
2.17 |
| 4 |
717.3 |
9.6 |
7.2 |
65 |
2.21 |
| 5 |
812.7 |
12.0 |
3.9 |
84 |
2.26 |
| 6 |
767.3 |
14.8 |
2.4 |
91 |
2.23 |
| 7 |
662.8 |
19.5 |
1.9 |
93 |
2.18 |
|
|
