Which problem was overcome for Pont du Gard stone stability, leading to long-term structural integrity?

💡 Explanation

The stone material was carefully selected and placed, accounting for differential EQUILIBRIUM because thermal expansion would create stresses within individual blocks. Therefore, the arrangement stabilized the entire structure, rather than the alternatives involving construction techniques applicable at a base level.

• Which risk increases when constructing Roman fortifications using opus caementicium in regions prone to seismic activity?
• Which structural problem plagued early ironclad warship construction during the 19th century?
• Which consequence results when the lead sheathing on a wooden ship's hull experiences prolonged immersion in seawater?
• Which outcome accelerated soil loss when the pre-Columbian Anasazi over-farmed?
• Which consequence arises in historic pietra dura when uncontrolled humidity fluctuations affect ivory and marble?
• What main force reduction mechanism allows Incan retaining walls (against hillsides) to withstand soil pressure?