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← HistoryWhich consequence occurred as complex pietra dura inlay weakened historic structures?
A)Corrosion due to mismatched thermal expansion✓
B)Resonance causing structure instability
C)Excess compression leading to concrete creep
D)Erosion created galvanic potential
💡 Explanation
Mismatched materials within pietra dura caused differential thermal expansion, inducing cyclical stress corrosion because each expanded at different rates. Therefore, structural integrity degraded faster, rather than uniform degradation expected from normal environmental exposure.
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