Where is posttensioning typically done?

Posttensioning is typically performed at the construction site. This method involves tensioning steel tendons within concrete after the concrete has gained sufficient strength. Performing this at the construction site allows for real-time adjustments and ensures that the tendons are precisely placed and tensioned according to the specific structural requirements.

In addition to ensuring accuracy, on-site posttensioning facilitates the integration of the process with other construction activities, such as the placement of formwork and the alignment of structural elements. This approach also means that the tendons can be anchored directly to the elements they are reinforcing, providing the necessary strength and stability when the concrete is cured and the tendons are tensioned.

While elements of posttensioning technology are designed and studied in laboratories and engineering offices, the actual tensioning process takes place where the structure is being constructed, making the construction site the correct answer.