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← TechnologyWhich outcome results when post-tensioned concrete tendon sheathing is inadequately grouted after stressing?
A)Corrosion propagation along the tendon length✓
B)Concrete spalling due to increased stress
C)Tendon slippage from reduced friction
D)Creep deformation under sustained load
💡 Explanation
When grout is inadequate, moisture ingress promotes galvanic corrosion because the tendons are exposed to oxygen and chlorides, leading to widespread corrosion. Therefore corrosion propagation occurs rather than spalling, slippage, or creep which are due to distinct mechanical or material deficiencies.
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