engineering recuitment GATE CE 2023-24 Test Series Highway Engineering Highway Materials and Maintenance
Which of the following is/are correct?
1
The flakiness index of aggregate is the % by weight of the particles (aggregates) whose thickness is less than 3/5th (0.6 times) of their mean dimension.
2
The Elongation index of aggregate is the % by weight of the particles (aggregates) whose length is greater than 1.6 times of their mean dimension.
3
The normal aggregate which are suitable for making concrete may have angularity number anything from 0 to 16.
4
Angularity number 0 represents the most practicable rounded aggregate.