Which consequence resulted from poorly bonded mortar in Roman concrete?

💡 Explanation

Accelerated bio-deterioration occurs because capillary action draws moisture through the porous mortar, promoting microbial growth; Water intrusion accelerates material breakdown, therefore, compromising durability occurs rather than enhanced resistance, if properly, hydration and other binding process happened.

• Which error increases in prolonged use of a cast-brass astrolabe?
• Which outcome reduces soil fertility when unsustainable terrace farming denudes mountain slopes?
• Which vulnerability increased effectiveness in Roman torsion siege weapons?
• Increased crossbow performance during China's Han Dynasty resulted when increased quenching rates induced which material property change?
• Which risk increased for fire-galleys launching Greek fire?
• Which risk increases disproportionately when excessive hydrostatic pressure affects ancient monumental stone structures?