Question

Distinguish between bonded post tensioning concrete and unbonded

Answer 1

Unbonded post-tensioning differs from bonded post-tensioning by allowing the tendons permanent freedom of longitudinal movement relative to the concrete. Anchorages at each end of the tendon transfer the tensioning force to the concrete, and are required to reliably perform this role for the life of the structure.

Answer 2

Prestressing may be achieved either by petenisioning or by post tensioning to pretension concert the steel is first tensioned in a fame or between Anchorages external to the member post tensioned concrete that contains ducts through which tendon can be threaded

Explanation:

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