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Which degradation becomes accelerated when thermal expansion mismatches exist around Mughal pietra dura inlay?

A)Frost cracking of the marble
B)Dissolution of the lime mortar
C)Oxidation of ferrous compounds
D)Hydrolysis of silicate binders

💡 Explanation

Cracking risk increases due to differential strain because significant differences in the coefficient of thermal expansion cause stress across inlay boundaries; therefore, frost cracking occurs rather than uniform deterioration, since water intrusion into micro-cracks exacerbates expansion stress.

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