Which structural risk greatly increases if significant outward creep develops in a historic Roman concrete defensive wall?

💡 Explanation

Reduced resistance to siege weapons will follow. This is because outward creep relaxes the arching action mechanism, which distributes load, therefore making the wall vulnerable to concentrated impacts rather than distributing forces through the wall.

• Which consequence occurred when the alloy ratios shifted during cannon casting?
• In ancient Mesopotamia, which risk increased during the casting of large bronze objects when using clay molds?
• Which early outcome constrained massive crossbow adoption, despite gunpowder's incendiary potential, marking late Song Dynasty warfare?
• Which outcome arises as cast iron cools unevenly in early Chinese cannon barrels?
• Which risk increases when the mortar within a dry stone wall erodes?
• Which strategic consequence arose for the Byzantine Empire with consistent tribute payments to steppe nomads?