Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← TechnologyWhich risk increases when chloride ions penetrate a concrete bridge deck with embedded rebar?
A)Accelerated rebar corrosion from depassivation✓
B)Concrete spalling due to alkali-silica reaction
C)Reduced load capacity from aggregate degradation
D)Fatigue failure from increased traffic vibrations
💡 Explanation
When chloride ions penetrate concrete, depassivation of the rebar's protective oxide layer occurs because chloride ions disrupt the passive layer, leading to accelerated corrosion. Therefore accelerated rebar corrosion results, rather than spalling, load reduction, or fatigue cracking which depend on other degradation mechanisms.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Technology →- Which outcome occurs when lubricating oil viscosity is too low during a CNC grinder operation?
- Within a hydraulic robotic arm, which risk increases when the actuator's spool valve experiences significant wear?
- Which outcome happens when a three-phase circuit breaker trips due to a sustained overcurrent fault?
- Which limit increases spalling in reinforced concrete columns exposed to rapid heating?
- Following concrete beam pouring, which mechanism causes surface microcracking?
- Within a chiller system, which outcome occurs when refrigerant overcharge surpasses thermal expansion valve (TXV) capacity?
