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← TechnologyWhich risk increases when steam injection during concrete curing elevates humidity prematurely in a pre-stressed beam?
A)Increased tendon stress corrosion cracking✓
B)Reduced concrete tensile strength
C)Decreased thermal expansion coefficient
D)Elevated concrete compressive strength
💡 Explanation
Premature high humidity from steam injection causes increased alkali-silica reactivity (ASR) because it provides the needed moisture. Therefore accelerated tendon corrosion becomes the risk rather than strength changes, which are more directly related to temperature.
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