A combined value of flakiness and elongation index is to be determined for a sample of aggregates. The sequence in which the two tests are conducted is:
1
Flakiness index test followed by elongation index test on the whole sample
2
Elongation index test followed by flakiness index test on the whole sample
3
Flakiness index test followed by elongation index test on the non-flaky aggregates
4
Elongation index test followed by flakiness index test on no elongated aggregates
5
None of the above