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Civil Engineering QUESTION #6628
Question 1
In prestressed concrete, 'Relaxation' refers to which phenomenon?
  • Loss of concrete strength over time
  • Decrease in stress in steel under constant strain✔️
  • Shortening of concrete due to sustained loading
  • The increase in tendon length due to temperature
Correct Answer Explanation
Steel relaxation is the decrease in stress of the prestressing steel when it is held at a constant strain over time.