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What is Prestressing?

Prestressing is the process by which a concrete element is compressed, generally by steel wires or strands. Precast elements may be prestressed during the construction process (pre-tensioning) or structures may be stressed once completed (post-tensioning). Prestressing compensates for the tensile stresses introduced when the element is loaded. Hence the concrete generally remains in compression.


Acknowledgement: The Concrete Society


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An introduction to prestressed concrete