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← TechnologyWhich outcome occurs when improperly tensioned prestressing strands cause insufficient concrete compression?
A)Reduced shear capacity and diagonal cracking✓
B)Increased creep deformation under sustained load
C)Accelerated rebar corrosion by higher stress
D)Premature concrete spalling during curing
💡 Explanation
When prestressing strands are improperly tensioned, bond friction causes insufficient compressive stress counteracting tensile stresses, resulting in a reduced shear capacity that promotes diagonal cracking. Therefore, reduced shear capacity results, rather than creep, corrosion, or spalling which require different underlying weaknesses or mechanisms.
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