Which risk increased due to incomplete Roman concrete curing in coastal fortifications?

💡 Explanation

When Roman concrete incompletely cures near the sea, chloride ions penetrate via diffusion into concrete because of marine exposure, leading to accelerated rebar corrosion which undermines the structural integrity. Therefore, rebar corrosion accelerates, rather than seismic instability, material costs, or thermal stress which involve different degradation mechanisms.

• Which limitation affected the accuracy of time measurements derived from medieval Islamic astrolabes operating in different latitudes?
• Which structural weakness frequently undermined Roman siege ramp ("agger") construction against fortified cities?
• Which mechanical vulnerability resulted from the rapid quenching of bronze tools in ancient metallurgy?
• Which consequence resulted from inadequate terrace wall drainage in ancient hillside agriculture?
• Which purpose did extensive terracing serve within the agricultural practices of the Inca civilization?
• Which outcome occurs when the water level in a canal lock drops too rapidly during ship passage?