Creep in concrete IS 456

When a concrete member is subjected to a load it undergoes certain deformation. It disappears when load is removed.However if the load is sustained for longer period the deformation continues even the load is not increased. This phenomenon of deformation under constant stress is called creep.

creep coff at 7 days loading : 2.2,at 28 days: 1.6 and at 365 days : 1.1

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