Which consequence during Roman concrete construction increased structure durability?

💡 Explanation

The additive pozzolana reacted with lime because of volcanic elements; this pozzolanic reaction decreased concrete permeability, therefore increasing resistance to environmental erosion rather than faster hardening from travertine that reduces long-term strength.

• Which geological risk increased for medieval stone cathedrals constructed on clay?
• Which principle was applied in Alhazen's camera obscura experiments to demonstrate rectilinear propagation of light?
• Which optical distortion was minimized during the peak era of astrolabe construction?
• Which consequence arises when sediment buildup reduces flow?
• Which optical effect, explained by Ibn al-Haytham, causes a mirage on hot desert surfaces?
• Which failure frequently undermined Roman siege ramp efficacy during the Republic?