Per Table 5.1, the slump range corresponding to a 'MEDIUM' degree of workability lies in approximately:
A0 to 25 mm slump
B25 to 50 mm slump
C50 to 100 mm slump
D100 to 175 mm slump
Answer & Solution
Correct answer: C. 50 to 100 mm slump
1. Table 5.1: Very Low workability = 0-25 mm slump; Low = 25-50; Medium = 50-100; High = 100-175.
2. The corresponding compacting factor (large apparatus) for Medium workability is about 0.935.
_Source: IGNOU ET-522 Block-2 Unit-5 Workability & Fresh Concrete-I, Table 5.1, §5.4.1, p. 9_
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