During a Roman siege, which outcome results from concentrated heat application exceeding stone's spalling threshold?

💡 Explanation

Spalling occurs because differential thermal expansion between heated surface areas and the stone's interior generates stress beyond cohesive limits, therefore weakened walls result, rather than increased strength. Mortar hydration is irrelevant at these temperatures.

• Which outcome reliably allowed successful Byzantine diplomatic leverage?
• Which outcome resulted from the early use of inadequately heat-treated cast iron agricultural tools in Han Dynasty China?
• What consequence results when cyclical thermal stresses act upon marble 'Pietra Dura' inlay found in Mughal monuments?
• Which outcome arises when the molten cast iron cools too rapidly in ancient Chinese cannonfounding?
• Which risk increases when poorly maintained terraces experience prolonged rainfall on the Andes mountains?
• Which mechanism explains how Alhazen's 'camera obscura' created inverted images?