Which statement defines the maximum height relative to the deck surface?

• A. Cylinder Size Selection
• B. Must not be higher than deck surface
• C. Retarding Admixture
• D. Initial Concrete Temperature

Answer: (B)

The idea being tested is how height is controlled during deck concrete placement. The only statement that actually defines a height limit relative to the deck surface is the one that says the concrete must not be higher than the deck surface. This matters because keeping the pour at or below the deck surface helps ensure a flat, uniform finish, proper consolidation, and a good bond between layers without creating ridges, steps, or overpour that would be difficult to finish or would require removal. Lifts that rise above the deck surface can trap air, cause voids, and lead to defects like cold joints or surface irregularities. The other options relate to sample size, setting time, or temperature, which do not define any height relationship to the deck.