Computer · Prestressed Concrete
Select the INCORRECT statement regarding prestressed concrete according to Indian Standard specifications.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Pre-stress loss due to elastic shortening of concrete is given by m × fc.
- 2The decrease in stress in steel at a constant strain over time is called relaxation.
- 3A heavily cracked pre-stressed concrete beam behaves similarly to a conventional reinforced concrete beam.
- 4The minimum concrete grade specified for pretensioning and post-tensioning is M30 for both systems.✓
Correct answer
The minimum concrete grade specified for pretensioning and post-tensioning is M30 for both systems.
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