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Which risk increases in a Roman aqueduct if limekiln temperature decreases from the optimal range during pozzolan production?

A)Increased hydraulic head loss
B)Reduced concrete compressive strength
C)Elevated biological contamination
D)Accelerated channel sedimentation rate

💡 Explanation

Reduced temperature changes the sintering process, resulting in inadequate calcium-silicate-hydrate formation, because desired mineral phases aren't attained. Therefore, the concrete weakens, rather than flow being affected or the water becoming contaminated.

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