alleryStart learning →Compared to rounded aggregates, angular aggregates typically lead to concrete that has:
ALower bond strength and durability
BLower interlocking but higher strength
CHigher water requirement only
DHigher bond strength and durability
Answer & Solution
Correct answer: D. Higher bond strength and durability
1. §2.2.4 (ii): 'angular aggregates have greater durability, interlocking nature, higher surface area and higher bond characteristics which results in higher strengths.'
2. The point on flat/flaky aggregates that they 'make very poor concrete' is separate (point iii).
_Source: IGNOU ET-522 Block-1 Unit-2 Aggregates, §2.2.4(ii), p. 20_
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