Question

aggregate impect value of material a is 20 and that of material B is 40.which is better for surface course of pavement ?​

Answer 1

Answer:

Aggregate Impact Value 20 is better

Explanation:

Aggregate Impact Value gives a indication of aggregates toughness property which property of material to resist impact.

Keep in mind below points

Aggregate Impact Value (%) - - Toughness property

<10 - - Exceptionally Tough

10-20 - - Very Tough

20-30 - - Good for pavement surface course

>35 - - Weal for pavement surface course