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Define the pre-tensioned concrete construction
We understand that in the pre-tensioned concrete construction, stretched tendons are provided in the concrete moulds at the time of casting of concrete. In the post-tensioned concrete construction, this is not a requirement as the ducts are fitted inside the moulds at the time of casting of concrete. The transfer of prestress takes place early in the case of pre-tensioned concrete members (it takes place at the time of cutting of tendons after the concrete has sufficiently hardened) while the transfer of prestress, in the case of post-tensioned concrete members, takes place when tendons are placed inside ducts and anchored in a stretched condition.
closed traverse ABCDE form a regular polygon with fore bearing of line is 35 find the bearing of other lines
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