Rehabilitation of structures may be required due to several reasons. Choose the correct reason.

If the loss of prestress is excessive resulting in tensile cracks, which method should be used?

The crack propagation in the concrete girders can be arrested by using the principles of ________

In incremental launching or pull out technique to allow the super structure to move forward, what are provided?

In cat insitu construction the formwork is supported by ________

Prestressed concrete structures showing visible signs of distress in the form of ________

The super structure of Obra singrauli bridge, located on eastern railway in Indian is of span ________

What is the main feature of this method comprises a moveable temporary arrangement to limit?