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← TechnologyWhich risk increases when insufficient concrete cover protects prestressing strands?
A)Accelerated strand hydrogen embrittlement cracking✓
B)Reduced beam ultimate shear capacity
C)Increased dynamic load amplification factor
D)Decreased sustained load creep deflection
💡 Explanation
Hydrogen embrittlement is more likely when inadequate concrete surrounds the strands because chloride ingress from the environment leads to electrolytic corrosion and hydrogen production. Therefore, cracking ensues, rather than enhanced load capacity, creep, or load amplification.
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