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← TechnologyWhich risk increases when a prestressed concrete beam experiences insufficient grout filling during tendon installation?
A)Accelerated tendon corrosion from moisture✓
B)Reduced shear capacity from bond loss
C)Increased concrete creep from stress peaks
D)Elevated fire susceptibility from air pockets
💡 Explanation
When grout is insufficient, it leaves voids in the tendon duct because it provides a protective alkaline environment, leading to electrochemical oxidation of the steel. Therefore accelerated tendon corrosion occurs, rather than bond loss, concrete creep, or fire susceptibility, needing different material deficiencies.
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