Engineering :: Concrete Technology

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Which of the following statement is correct?

[A].	Harshness in concrete mix increases if finer aggregates to fill the voids in coarse aggregates are less.	[B].	As the internal friction of aggregates increases, the workability of concrete decreases.
[C].	As the slump value increases, the workability of concrete also increases.	[D].	all of the above

Answer: Option D