AL Water Projects Practice Questions - Alabama Water Projects Contractor Examination Exam

For water-retaining concrete, why is the water-cementitious materials ratio so important?

It is the primary driver of paste permeability and therefore of leakage and durability It only affects the color of the finished wall A higher ratio always makes concrete more watertight It has no effect if the slump is 4 inches

Correct Answer:

It is the primary driver of paste permeability and therefore of leakage and durability

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