Which failure mode accelerated the degradation of stone aqueducts?

💡 Explanation

Repeated freezing and thawing caused frost wedging within the porous stones, because the expansion of ice exerted pressure exceeding the stone's tensile strength, therefore the aqueduct weakened and cracked, rather than remaining stable under compression or erosion.

• Which risk increases when Roman concrete (opus caementicium) is exposed to seawater for extended periods?
• Which mechanism explains the long-term structural weakening in wrought iron bridges from the 19th century carrying railway traffic?
• Which outcome critically depends on hydraulic head within the Mughal garden water systems?
• Which consequence resulted from differential thermal expansion in Mughal pietra dura inlay?
• Which outcome results when inadequate slope exists within Mughal garden water channels?
• Which degradation risk escalates under freeze-thaw cycles within Mughal pietra dura?