![]() Materials for prestressing concrete members In this method, the prestress is imparted to concrete by bearing Post-tensioning: A method of prestressing concrete by tensioning the tendons against hardened concrete.In this method, the concrete is introduced by the bond between steel & concrete. Pre tensioning: A method of prestressing concrete in which the tendons are tensioned before the concrete is placed.Anchorage: A device generally used to enable the tendon to impart and maintain prestress in concrete.Tendon: A stretched element used in a concrete member of the structure to impart prestress to the concrete.Prestressed concrete is basically concrete in which internal stresses of a suitable magnitude and distribution are introduced so that the stresses resulting from the external loads are counteracted to a desired degree.Prestress is defined as a method of applying pre-compression to control the stresses resulting due to external loads below the neutral axis of the beam tension developed due to an external load that is more than the permissible limits of the plain concrete.
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