3. PRE STRESSING & POST STRESSING METHOD AND SYSTEM

Question

Accepted Answer

Pre-stressing and post-stressing are methods used to increase the strength and durability of concrete structures.

Pre-stressing involves applying stress to the concrete before it is loaded, which helps to counteract the stresses that will be applied during use.
Post-stressing involves applying stress to the concrete after it has been loaded, which helps to redistribute the stresses and increase the strength of the structure.
Both methods involve the use of steel reinforcement, which is tensioned and anchored to the concrete to provide additional strength.
Pre-stressing is commonly used in the construction of bridges, while post-stressing is often used in the construction of buildings and other structures.
The use of pre-stressing and post-stressing can help to extend the lifespan of concrete structures and reduce the need for maintenance and repairs.

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