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Reinforced Cement Concrete

Slip Loss and Relaxation of Steel

Spalling stre...

Question

Spalling stresses are produced in post-tensioned pre-stressed concrete members because of

A

bursting force

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B

highly concentrated tendon force

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C

inadequate anchor block

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D

maximum shear zone

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Solution

The correct option is B highly concentrated tendon force
High tensile stresses are induced in concrete when highly concentrated tendon forces are applied over anchorage zone as a result the concrete starts spalling at the anchorage zone.

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