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← HistoryWhich outcome results in historical brick masonry when mortar carbonation is excessively delayed?
A)Extensive efflorescence formation occurs✓
B)Optimal compressive strength achieved
C)Improved seismic resilience obtained
D)Reduced material porosity results
💡 Explanation
Extensive efflorescence can form because the delayed mortar setting produces continuous dissolving/re-precipitating of soluble salts, a process named dissolution-precipitation mechanism, drawing salts to surface. Therefore, efflorescence increases rather than faster setting, preventing full curing or increasing strength.
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