1.

The losses which is not occurred in post tensioning is

Answer»

in Prestress of PRESTRESSED ConcreteThe force which is used to STRETCH the wire to the REQUIRED length must be available all the time as prestressing force if the steel is to be prevented from contracting. CONTRACTION of steel wire occurs due to several causes, affecting REDUCTION in the prestress. This reduction in the prestressing force is called loss in prestress.In a prestressed concrete beam, the loss is due to the following:Elastic shorteningShrinkage of concreteCreep of concreteFrictional lossRelaxation of steelAnchorage take-up



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