Which outcome follows when Roman road aggregate undergoes repeated freeze-thaw cycles?

💡 Explanation

Subgrade weakening promotes structural rutting because increasing moisture content weakens the granular matrix, diminishing soil bearing capacity under repeated loading. This induces plastic deformation, therefore roads exhibit rutting rather than maintain structural integrity at increasing saturation.

• Which outcome resulted from increased evaporation rates in ancient Mesopotamian canals utilizing clay lining during summer?
• Which risk increased when early Mesoamerican farmers relied heavily on Zea mays?
• Which material failure mode increased in Bronze Age sickles due to repeated silicate soil contact?
• Which mechanism caused ancient Andean terraced agriculture to prevent catastrophic soil loss during intense rainfall?
• Which outcome regarding coastal defense occurs when Roman concrete degrades?
• Which increased risk occurred when Song Dynasty ironworkers cast early cannon barrels from a non-homogeneous mix?