VibraXX
Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter Arena
HomeCategoriesHistoryQuestion
Question
History

Which outcome occurs when alternating freezing and thawing affects lime mortar supporting Mughal pietra dura?

A)Detachment of stonework due to cryoclasty
B)Uniform surface oxidation of all elements
C)Complete conversion to gypsum accelerates
D)Cracks initially heal through autogenous swelling

💡 Explanation

Cryoclasty is the mechanism because water expands upon freezing within mortar pores, thereby exerting pressure, which causes the stonework to detach rather than uniform oxidation. Therefore, physical fracturing is the consequence, rather than a chemical alteration.

🏆 Up to £1,000 monthly prize pool

Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.

⚡ Enter Arena

Related Questions

Browse History