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← HistoryWithin Mughal-era pietra dura inlay at the Taj Mahal, which outcome occurred due to differential thermal expansion?
A)Mortar joint cracking propagation
B)Oxidation discoloration of marble
C)Inlaid stone delamination failure✓
D)Foundation settling and tilting
💡 Explanation
In pietra dura, various stones with differing coefficients of thermal expansion were inlaid; therefore, differential thermal expansion induces shearing stress at interfaces because of cyclic temp changes rather than uniform surface oxidation, causing delamination which is stone separation.
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