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← HistoryWhich risk increases when constructing a Roman castrum wall with inconsistent pozzolan mortar?
A)Accelerated spread of dry rot
B)Decreased compressive strength long-term✓
C)Reduced thermal conduction overall
D)Increased susceptibility to alkali-silica reaction
💡 Explanation
Decreased compressive strength occurs because inconsistent composition affects hydration, reducing overall reaction homogeneity via variable pozzolanic reaction. This causes weak points, leading to premature structural decline rather than uniform material failure therefore the wall is weaker.
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