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Question
Consider the following statements:
1. A high aggregate impact value indicates strong aggregates.
2. A low aggregate crushing value indicates high crushing strength of aggregates.
3. Aggregates having elongation index values greater than 15% are generally considered suitable for pavement construction.
4. Flakiness index of aggregates should not be less than 25% for use in road construction.
Which of the above statement(s) is/are correct?
A.
Only 2 
B.
Only 2 and 3
C.
Only 1 and 3
D.
Only 2 and 4
Answer ( Option A)

Only 2 

Solution

1. A high aggregate impact value indicates weak aggregates.
2. A low aggregate crushing value indicates high crushing strength of aggregates.
3. Aggregates having Elongation index values not greater than 15% are generally considered suitable for pavement construction. 
4. The flakiness index value of aggregate should be below 25% for use in road construction.

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