alleryStart learning →Per the source, the average specific gravity of rocks used as concrete aggregates typically lies in the range:
A2.6 to 2.8
B2.2 to 2.4
C1.4 to 1.8
D3.5 to 4.0
Answer & Solution
Correct answer: A. 2.6 to 2.8
1. §2.2.7 reads: 'Average specific gravity of rocks, normally, varies from 2.6 to 2.8.'
2. Specific gravity feeds into mix design (percent voids, compacting factor) — see §2.2.7 and §2.3.1(v).
_Source: IGNOU ET-522 Block-1 Unit-2 Aggregates, §2.2.7, p. 21_
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