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← HistoryWithin Mughal gardens employing pietra dura, which outcome results when seasonal ground frost affects the mortar setting of its decorative designs?
A)Increased binder hydration stability
B)Enhanced pigment color vibrancy
C)Accelerated tesserae bond degradation✓
D)Reinforced structural compressive strength
💡 Explanation
Freeze-thaw cycles cause accelerated tesserae bond degradation in pietra dura, because water expands upon freezing, causing lattice stresses. Therefore, the mosaic detaches rather than retaining its original structural integrity because no thermal compensation was designed.
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