Computer · Concrete Technology
According to IS 2386 (Part IV) recommendations, which interpretation of the Aggregate Impact Value (AIV) is most suitable for selecting coarse aggregates for structural concrete exposed to dynamic and impact loading?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Aggregates with AIV less than 30% are preferred, as lower impact values indicate higher toughness under sudden loading.✓
- 2Aggregates with AIV up to 45% are suitable because higher values provide better flexibility under dynamic forces.
- 3Aggregates with AIV between 35–40% offer optimum performance for shock-resistant concrete.
- 4Aggregates with AIV equal to their abrasion value are mandatory for concrete subjected to impact forces.
Correct answer
Aggregates with AIV less than 30% are preferred, as lower impact values indicate higher toughness under sudden loading.
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