The Aggregate Impact Value (AIV) test determines:
Choose the correct answer
Resistance of aggregate to abrasion
Toughness (resistance of aggregate to sudden impact)
Water absorption of aggregate
Flakiness of aggregate
Correct Answer
B. Toughness (resistance of aggregate to sudden impact)
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AIV (IS 2386 Part 4): sample of aggregate is subjected to 15 blows of a standard hammer. AIV = (weight of fines passing 2.36 mm sieve / total weight) x 100%. AIV < 10%: exceptionally strong; 10-20%: strong; 20-30%: satisfactory; > 35%: weak.
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