Prestressing of concrete is done by inducing predetermined compressive stresses to concrete by tensioning the steel, before subjecting it to service loads. In prestressed Concrete, the stress developed during the service stage is countered by the already induced compressive stresses. Prestressing is a technique that combines the strong compressive strength of concrete with the high tensile strength of steel. This page discusses prestressed concrete, various prestressing methods, and how prestressing works.
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