Question

Pick up the incorrect statement from the following:

Options:

A . A rich mix of concrete possesses higher strength than that a lean mix of desired workability with excessive equantity of water

B . The strength of concrete decreases as the water cement ratio increases

C . If the water cement ratio is less than 0.45, the concrete is not workable and causes honey-combed structure

D . Good compaction by mechanical vibrtions, increases the strength of concrete

E . None of these.

Answer: Option A

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